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GUJARAT MINERAL DEVELOPMENT CORPORATION LIMITED

VIEWS: 80 PAGES: 189

  • pg 1
									                                TENDER NO: 1/CSR/MNM/2010



    GUJARAT MINERAL DEVELOPMENT
        CORPORATION LIMITED
     BID DOCUMENT            for Providing, Installing, Commissioning
            and Operations and Maintenance of Solar based
     Desalination Plant of 1(one) MLD capacity, constructing,
    O&M of Partial Water Treatment of 0.50MLD & Disposal
     Pipeline of 600mm diameter RCC Pipe at Mata no Madh
                     Lignite Mines site in Kutch District.


                                   VOLUME – I

                              TECHNICAL BID



Gujarat Mineral Development Corporation Limited        Consultant
(A Govt. of Gujarat Enterprise)                           Multi Mantech International Pvt. Ltd,
Corporate Social Responsibility Department                M-Square, Millennium Plaza,
“Khanij Bhavan University Ground 132, Ft. Ring Road,      Judges Bungalows Road
Vastrapur,                                                Vastrapur, Ahmedabad – 380 015
Ahmedabad – 380 052.
Bid document for Providing, Installing, Commissioning and O & M of
Solar based Desalination Plant of 1 MLD capacity at Lignite Mines in
                          Kutch District.
                              INDEX

    Section &                            Description
                                                                        Page No
    clause No
                                      Cover page & Index
  SECTION – I     Invitation To Bid                                        2
        1         Details of NIT                                           4
        2         Condition of Contract                                    8
        1         General And Specific Terms and Conditions                9
       1.1        General Conditions
       1.2        Specific terms and conditions
       1.3        Product Water Quality Parameter Test
       1.4        Delivery/Commissioning
       1.5        Pre - bid compliance undertaking
        2         Part II GENERAL CONDITIONS OF CONTRACT                  13
        3         Part III SPECIFIC TERMS AND CONDITIONS                  16
                  INSTRUCTIONS TO BIDDERS
        1.        Eligibility Criteria                                    20
       1.1        Financial Criteria
       1.2        Technical Criteria
        2         INFORMATION REQUIRED TO BE FURNISHED BY
                                                                          21
                  APPLICANTS
                  Formats                                                 22
                  Appendix – A
                  Appendix – A1
                  Appendix – A2
                  Appendix – B
                  Appendix – C
                  Application Form (1), General Information
                  Table 1 to 5
  SECTION – II    GENERAL INFORMTION AND TECHNICAL
                  REQUIREMENTS
        1         General Information                                     37
        2         Scope of work, technical specifications and general
                                                                          42
                  conditions
       3          Office Building Including Guest Room and Laboratory     51
  SECTION – III   TECHNICAL SPECIFICATIONS CIVIL                          58
      1.0         Civil And Building Works                                59
      2.0         Earth Work                                              67
      3.0         CONCRETE                                                75
      4.0         STRUCTURAL STEEL WORK                                   98
      5.0         Pipelines & Pipe work                                   110
      6.0         GENERAL TECHNICAL SPECIFICATIONS FOR
                  PUMPING MACHINERYAND ELECTRICAL                         124
                  EQUIPMENTS
       7.0        OPERATION AND MAINTENANCE                               130
8.0   LIGHTING SYSTEM                                             133
9.0   ELECTROMAGNETIC FULL BORE TYPE FLOW METER                   139
      TESTS AND TEST CERTIFICATES                                 140
      LIST OF APPROVED VENDORS                                    142
A     Materials
1     Scope
2     Applicable Codes
3     Design
4     Manufacturing
      Drawing for Layout of Solar Energy Desalination Plant       151
      Drawing for Schematic Diagram of Solar Desalination Plant   152
      Drawing for Location of Solar Energy Desalination plant
                                                                  153
      (100m x 100m)


                           VOLUME – II

      CONTENTS                                                      1
1.0   BIDFORM                                                       2
      SCHEDULE-A                                                    9
      SCHEDULE-B                                                   10
      SCHEDULE-C                                                   14
      BREAK UP FOR SCHEDULE OF PAYMENT                             15
      ANNEXURES                                                   19-26
      ANNEXURE – I
      ANNEXURE – II
      ANNEXURE – III
      ANNEXURE – IV
      ANNEXURE – VI
      ANNEXURE – VII
                                 VOLUME-I

                                 SECTION -I

                       INVITATION TO BID
              CONDITIONS OF CONTRACT
              INSTRUCTIONS TO BIDDERS




Multi Mantech International Pvt. Ltd          1
Gujarat Mineral Development Corporation Limited




                 INVITATION TO BID




Multi Mantech International Pvt. Ltd              2
Gujarat Mineral Development Corporation Limited




  The MANUFACTURERS OR COSTORIUM of MANUFACTURER with any BIDDERS,
  intending to bid will have to pay a total tender fee of Rs.12000/ in form of E- Payment at
  Ahmadabad in the account of GMDC, and details of account for E-payment is given below

                                         Published NIT

                          NOTICE INVITING TENDERS
   Gujarat Mineral Development Corporation Limited, Ahmedabad (Ph. +91-79-
   27912747, Fax. +91-79-27911454 E-mail:-csr@gmdcltd.com) invites e-tenders from
   the manufacturers or consortium of any bidder with manufacturers of solar based
   thermal systems for the work of “Providing, installation commissioning and
   O&M of solar based Desalination Plant having capacity to treat waste water of
   one million liters per day (1MLD) including constructing and O&M of partial
   water treatment Plant of 0.50 MLD with Disposal Pipeline of 600mm dia RCC
   Pipes at Mata No Madh lignite site in Kutch District.” The Estimated cost of the
   work is Rs.9.30 crores. The manufacturers or consortium shall have to qualify
   physical and financial criteria given in the tender.

   The detailed information of this tender notice is available at
   http://www.nprocure.com & http://www.gmdcltd.com, the last date of submission of
   e-tender shall 15 / 02 /2011 up to 18:00 hours. Any amendments shall be viewed on
   the above websites. For detail / information of tender & conditions, contact office of
   GMDC during office hours. GMDC reserves the right to accept/ reject any or all the
   tenders or split the work between more than one bidders without assigning any
   reasons thereof.




Multi Mantech International Pvt. Ltd                                       3
Gujarat Mineral Development Corporation Limited




                                 e – TENDER NOTICE



                                                  Details of NIT
              1     Tender No                        1/CSR/MNM/2010

              2     Name of Work / Job               Providing,                    Installing,
                                                     Commissioning and Operations
                                                     and Maintenance of Solar based
                                                     Desalination Plant of 1(one)
                                                     MLD     capacity,       constructing,
                                                     O&M       of        Partial       Water
                                                     Treatment      of     0.50MLD         &
                                                     Disposal Pipeline        of     600mm
                                                     diameter RCC Pipe at Mata no
                                                     Madh Lignite Mines site in
                                                     Kutch District.

              3     Location                         At Lignite mines, Mata no
                                                     Madh Tal : Nakhatrana Dist :
                                                     Kutch

              4     Tender Fee                       Rs.12000/ by DD / Pay Order

                                                     DD/ Pay Order should be of
                                                     Nationalize     Bank         or
                                                     HDFC/IDBI/ICICI/AXIS Bank
                                                     only in favour of Gujarat
                                                     Mineral           Development
                                                     Corporation Limited, payable at
                                                     Ahmedabad.
              5     Availability of Tender           On Web site
                                                     https://gmdc.nprocure.com

              6     Total Estimated Cost             Rs. 9.30 crores
                    (Including O & M – 5 year)




Multi Mantech International Pvt. Ltd                                          4
Gujarat Mineral Development Corporation Limited




              7     Earnest Money Deposit         Rs.9,30,000.00 (1% of the
                                                  estimated cost) in the form of
                                                  Demand Draf issued by
                                                  Nationalize        Bank       or
                                                  HDFC/IDBI/ICICI/AXIS Bank
                                                  only payable at/ Ahmedabad in
                                                  favor of “Gujarat Mineral
                                                  Development         Corporation
                                                  Limited Ahmedabad and to be
                                                  enclosed along with technical
                                                  bid only, failingng which tender
                                                  will not be considered as valid
                                                  tender This will be adjusted
                                                  against Security Deposit if the
                                                  order is considered in your
                                                  favour (No interest is Payable
                                                  by G.M.D.C. on EMD / SD).
              8     Security Deposit              5%      of     Contract    Value
                                                  (Including EMD)         (Through
                                                  BG/DD issued by Nationalized
                                                  bank                          or
                                                  HDFC/IDBI/ICICI/AXIS Bank
                                                  payable to GMDC, Ahmedabad
                                                  valid up to 2 years from the
                                                  date of agreement)

              9     Retention Money               Retention money deposit will be
                                                  deducted from RA Bills @ 5%
                                                  of the value of the contract
                                                  amount, which will be released
                                                  after successfully completion &
                                                  trial of one month.
             10     Time Limit for completing     12 (Twelve) Months from the
                                                  date of Signing the Agreement
                    and commissioning the plant   and handing over the land by
                                                  GMDC for setting up of the
                                                  plant, Plus 6 months of trial run
                                                  and 5 years O&M.
             11     Life of the plant             Minimum 25 years

             12     O & M of the plant by the     Minimum 5 (Five) years and
                                                  can be extended mutually till
                    manufacturer
                                                  the life of the system.
             13     Validity of Tender             180 Days



             14     Down Loading of online        From 01-01-2011 after 12:00
                    Tender                        Hrs.


Multi Mantech International Pvt. Ltd                                   5
Gujarat Mineral Development Corporation Limited




              15    Last date & Time for online         Up to 15-02-2011 up to 18:00
                    submission of Tender               Hrs.

             16     Last date for submission of        up to 15-02-2011 up to 18:00
                    tender fee, EMD and                Hrs.
                    supporting doc. For Tech. Bid
                    during office hours in person

              17    Date and time for Opening of       up to 16-02-2011 at 15:00 Hrs
                    Preliminary Bid


The EMD and other supporting documents required for technical evaluation shall be
submitted on 15-02-2011 up to 18:00 Hrs in sealed envelope in the name of “Request
for Proposal for the work of Providing, Installing, Commissioning, Operation
and Maintenance of Solar based Desalination Plant of 1 MLD capacity,
Construction and O&M of Partial WTP of 0.50 MLD &Disposal Pipeline of 600
mm diameter RCC Pipes At Lignite Mines Site near Mata No Madh in Kutch
District.
Offer without EMD and tender fee will not be considered.
Bids are invited under a Single stage – two envelope bidding procedure through e-tendering.
This will also include the process of post-qualification of the bidders. Bidders are to submit
simultaneously, two sealed envelopes, one containing the technical proposal including bidder’s
data on his technical and financial strengths along with experience profile to meet with post
qualification criteria and Bidder’s Technical proposals containing work methods, Approach,
construction programme etc. and the other containing the price proposal. The Technical
Proposal along with the data and information for qualification will be opened first. The technical
proposal along with the qualification information will be subjected to an evaluation process
contained as a part of the tender document and the bidders found fit to qualify will be invited for
opening of the price bid. GMDC as an employer reserves its absolute and unchallengeable right
to qualify or disqualify one or all bidder by following an objective & transparent system.

The data submitted on web site containing the post qualification data and the technical bid will
be opened first for post qualification of the bidders and evaluation of their technical proposals
and to determine the responsiveness of the bids. Price bids of only those contractors who are
declared as substantial responsive to the requirements of the bid documents will be opened for
further evaluation.




Multi Mantech International Pvt. Ltd                                           6
Gujarat Mineral Development Corporation Limited




Qualification requirements specifying financial capacity, technical, minimum acceptable levels
with regards to Bidder’s experience in relevant projects and other relevant factors such as work
in hand, future commitments and litigation history as given and described in the Instruction to
Bidders will be evaluated first and those qualifying the criteria will be considered for further
price evaluation. Technical proposals, which are not substantially responsive, will be rejected.
Sealed Price Bids of the substantially responsive technical proposals will be opened in the
presence of the Bidders.

In case the bidders need any further information about the project or desire to inspection of any
other document related to the project or want to visit the site they are requested to contact any of
the following officer at the address given below:


Sr           Name            Designation                    Address                      Phone / Fax
No.
 1.     Shri P.K. Soni          General          Gujarat mineral development               Tel: 079-
                                 Manager              corporation Limited                   27912747
                                  (CSR)           Khanij Bhavan, University                Fax: 079-
                                                  Ground, 132 feet Ring Road                27911454
                                                     Vastrapur Ahmedabad
                                                            380052



Pre-bid conference: It will be held on 21-01- 2011 at GMDC office Ahmedabad.
Preliminary Bid will be opened in the presence of the Bidders’ representatives who choose to attend,
at the office of Gujarat Mineral Development Corporation Limited, at the address indicated above at
15.00 hours on Dt.:16-02-2011

The date of opening of financial bids will be communicated in writing to Post qualified short-listed
technically responsive bidders at a later date.


Bidders who wish to participate in this tender will have to register on https://gmdc.nprocure.com
further bidders who wish to participate in online tender will have to procure digital certificate as per
information technology Act 2000 using which they can sign their electronic bids. Bidder can procure
the same form (n) code solution – a division of GNFC Ltd, who are licensed certifying authority by
Govt. of India and they will assist them in procuring the same at below mention address. Bidders who
already have valid Digital certificate need not procure a new Digital Certificate.

(n) Code Solution
A division of GNFC
301, GNFC Info tower, Bodakdev,
Sarkhej –Gandhinagar highway,
Ahmedabad – 380 054
Tel: +91 26857316/17/18
Toll free: 1-800-233-1-1 Ext: 501,512,516,517
 Fax: 91 79 26857321
E – Mail: nprocure@gnvfc.net
Mobile: 9327084190, 98985889652



Multi Mantech International Pvt. Ltd                                               7
Gujarat Mineral Development Corporation Limited




             CONDITIONS OF CONTRACT




Multi Mantech International Pvt. Ltd              8
Gujarat Mineral Development Corporation Limited




1.1.     General and specific terms and conditions
          PART – I General Conditions:
         In this deed of agreement/ Offer, unless the context otherwise requires:-

1.1.1.   The Manufacturer shall mean the Manufacturer who’s Offer shall be accepted by
         Authority and shall include such Manufacturers heirs, legal representatives,
         successors and assignees.
1.1.2.   The Manufacturer shall be deemed to have carefully examined all the papers,
         drawings, etc. attached in the contract. If he has any doubt as to the meaning of any
         portion of any condition/ specification, etc. he shall before signing the contract
         submit the particulars thereof to Authority in order that such doubts are removed.
         In addition it will be very important for the manufacturer to visit and understand the
         area before submitting the offer. The manufacturer shall intimate his intention to visit
         the site well in advance so that the field office of GMDC in Kutch can accompany at
         the site.
1.1.3.   The work shall be completed within the completion period, failing which penalty at
         the rate of 0.25 % per week subject to maximum of 10 % of work order value shall
         be imposed. This excludes delay in the completion of the work due to unforeseen
         reasons beyond the control and without fault and negligence of the Manufacturer
         including (but not restricted to) act of God or public anomie action of Government in
         its sovereign capacity, floods, epidemics, strikes, lockouts, fires and accidents. In
         the event of any of the aforesaid contingencies Authority may              be promptly
         kept     informed     by the Manufacturer by         Fax/Telex/Telegram followed by
         confirmation in writing with documentary proof within              fifteen   days    of
         commencement and cessation of Force Major circumstances. Under such
         circumstances reasonable extension of time shall be granted by Authority.
         Application for such extension must be made before the due date of completion of
         work as per agreement. In the event of termination of the agreement, Authority shall
         be at liberty to get the remaining part of the work done through any other
         agency/Manufacturer in the manner and on the terms it thinks proper. If the cost of
         executing the work as aforesaid shall exceed the balance due to the Manufacturer,
         and the Manufacturer fails to make good the deficiency, Authority may recover it
         from the Manufacturer in any lawful manner.
1.1.4.   The Manufacturer shall have to comply with all rules, regulations, laws and
         bylaws enforced by local and State Govt. and also the organization in whose
         premises the work has to be done.
1.1.5.   The Manufacturer shall not, without the consent in writing of Authority, transfer,
         assign or sublet the work under this contract or any substantial part thereof to any
         other party.
1.1.6.   If the Manufacturer neglects to execute the work with due diligence and expedition
         or refuses or neglect to comply with any reasonable orders within two weeks notice
         given in writing to the Manufacturer and if he fails to comply with the notice, then in
         such a case Authority shall be at liberty to get the work or any part of it, executed
         through any other agency/Manufacturer in the manner and on the terms it thinks
         proper. If the cost of executing the work as aforesaid shall exceed the balance due
         to the Manufacturer, and the Manufacturer fails to make good the deficiency,
         Authority may recover it from the Manufacturer in any lawful manner.
1.1.7.   Authority shall have at all reasonable time access to the works being carried out by
         the Manufacturer under this contract. All the works shall be carried out by the
         Manufacturer to the satisfaction of Authority.
1.1.8.    Any question, dispute or difference whatsoever arises between Authority and



Multi Mantech International Pvt. Ltd                                          9
Gujarat Mineral Development Corporation Limited




          Manufacturer, in connection with this agreement except as to matters, the decision
          for which has been specifically provided, either party may forthwith give to the other
          notice in writing of existence of such questions, dispute, difference and the same
          shall be referred to the sole arbitration of a person nominated by Authority. This
          reference shall be governed by Indian Arbitration Act prevailing at the time of dispute
          and the rules made there under. The award in such arbitration shall be final and
          binding on all the parties. Work under the agreement shall continue during the
          arbitration proceedings unless the Authority or the Arbitrator directs otherwise
1.1.9.    .Authority may at any time by notice in writing to the Manufacturer either stop the
          work altogether or reduce or cut it down. If the work is stopped altogether, the
          Manufacturer shall only be paid for work done and expenses legitimately incurred by
          him as on preparation of the execution of the work up to the date on which such
          notice is received by him. Such expenses shall be assessed by Authority whose
          decision shall be final and binding on the Manufacturer. If the work is cut down the
          Manufacturer shall not be paid for the work as so cut down, but in neither case shall
          be paid any compensation what so ever for the loss or profit which he might have
          made if he had been allowed to complete all the work included in the contract.
1.1.10.   Prior to dispatch, the materials may be inspected and tested by Authority at
          the Manufacturer's works. Manufacturer shall inform Authority for such inspection
          at least 7 days in advance before the probable date of dispatch.
1.1.11.   The system supplied or installed shall be guaranteed by the Manufacturer for a
          minimum period of One year in regard to quality of material, workmanship,
          performance, efficiency, installation, etc. Defects developed in the system within
          guarantee period, shall be rectified by the Manufacturer at his own expense
          promptly. In case the defects are not rectified within 7 days of the receipt of the
          complaint by the Manufacturer, Authority shall have full liberty to remove such
          defect or undertake such repairs as may be necessary to restore the system in
          working condition. The expenditure so incurred by Authority shall be deducted from
          Manufacturer’s pending claims, security, etc. and if necessary may be recovered
          in other mode provided under the law.
1.1.12.   Notices, Statements and other communications sent by Authority through registered
          post or telegram or telex or to the Manufacturer at his specified address shall be
          deemed to have been delivered to the Manufacturer.
1.1.13.   The work shall be carried out by the Manufacturer with prior approval of Authority.
          Work carried out without Authority’s approval shall not be accepted and the Authority
          shall have right to reject it and to recover the cost as so incurred, from the
          Manufacturer.
1.1.14.   All equipment/material shall be suitably packed for transport/carriage at site and
          outdoor storage during transit. The Manufacturer shall be responsible for any
          damage to the equipment during transit due to improper or inadequate packing. The
          cases containing easily damageable material shall be very carefully packed and
          marked with appropriate caution symbols i.e. 'FRAGILE, HANDLE WITH CARE’ etc.
          The contents of each package shall bear marking that can be readily identified
          from the package list and packing shall provide complete protection from
          moisture, termites and mechanical shocks during shipment/transportation to site.
          Adequate protection must be provided for outdoor storage at site in tropical
          humid climate, wherever necessary proper arrangement for attaching signs for
          lifting shall be provided and all packages clearly marked with gross weight, signs
          showing 'UP' and 'DOWN' sides of boxes, contents of each package, order no. and
          date, name of the plant/equipments to which the material in the package forms
          the part of, and any handling and unpacking instructions considered
          necessary. The Manufacturer without any extra cost shall supply any material found
          short inside intact packing case. The Manufacturer shall ascertain prior to shipment,



Multi Mantech International Pvt. Ltd                                         10
Gujarat Mineral Development Corporation Limited




        from concerned authorities, the transport limitations like weight and maximum
        allowable package size for transportation. All packing cases and packing material
        shall become the property of the purchaser.
1.1.15. The Manufacturer shall provide one copy of the instruction manual and
        routine maintenance manual in English / Gujarati with each item supplied or
        installed. These manuals should contain all the relevant details and drawings
        required for proper maintenance of the system supplied or installed.
1.1.16. The inspection as mentioned in clause No. 2.3.10 by Authority’s representative shall
        not relieve the Manufacturer from full responsibility of completing the work
        confirming to the requirement of this contract.
1.1.17. The contract may be amended and verified by mutual agreement between the
        Purchaser and Manufacturer so as to include any unforeseen situation or
        circumstances. All such variations shall be in writing and signed by the duly
        authorized representatives of the parties.

1.2.    SPECIFIC TERMS AND CONDITIONS

1.2.1  The specifications for supply and installation of Solar Desalination systems are given
       in the tender documents.
1.2.2 Manufacturer will ensure that necessary spares are always available to provide
       necessary after sales service to the customers during the guarantee period.
1.2.3 Manufacturers, to whom work is awarded will be required to deposit security
       deposit of 5 % of total value of the work. The Security Deposit will be
       accepted in the form of Demand Draft issued by Nationalized bank / Schedule
       bank in favor of GMDC payable at Ahmedabad with validity up to of 12 months
       from date of complete installation. No interest will be paid on the Security Deposit.
       The Earnest Money Deposit of the successful bidders will be retained as security
       deposit and will form part of the total security deposit required to be deposited by the
       successful bidder.
1.2.4 It is very critical to Install & Commission systems as per the order placed by the
       Purchaser before the end of the completion period In the event of failure to supply
       system as committed by the Manufacturer as accepted by them while receiving the
       work order, will lead to forfeiter of the Security Deposit up to 100% and will
       lead to disqualification of the Manufacturer for transacting business with Authority
       for at least two years or the time duration as may be decided by the Authority.
1.2.5 In case of any type of misappropriations, cheating or intention of cheating,
       frauds, irregularities, malpractice, etc. the Authority reserves the right to cancel the
       work order without giving reasons thereof and forfeit the security deposit.
1.2.6 Rates quoted by the Manufacturer will be inclusive of taxes, levies, duties,
       packing, forwarding, freight, insurance, loading unloading, supply, installation,
       commissioning, and any/all charges for successful Supply of Solar Desalination
       system at in the company all expenses of marketing, commissions etc.
1.2.7 The rates quoted by the Manufacturer will be inclusive of Service Tax, Work
       Contract Tax, VAT or any other taxes applicable for such work. Any escalation in
       such taxes/ levies during the tenure of the contract will not be paid by Authority and
       Manufacturers are advised to take in to consideration any such escalations in the
       prevailing taxes/levies/duties.
1.2.8 No exemption certificates shall be given by Authority to the Manufacturer.
1.2.9 Solar Desalination systems supplied shall be covered under the warranty, against
       any manufacturing defect, for a period of 12 months from the date of commissioning
       of the system. The manufacturer shall undertake or shall arrange for repairs/
       replacement free of cost during the warranty period.
1.2.10 During O & M period of this plant by manufacturer all replacements of parts /
       components shall be the responsibility of manufacturer.



Multi Mantech International Pvt. Ltd                                       11
Gujarat Mineral Development Corporation Limited




1.3.   Product Water Quality Parameter Test
       The product water quality shall be tested regularly in the laboratory set up at the plant
       site by the manufacturer. The product water shall be got tested for verification and
       confirmation through Public Health Engineering Laboratories of GWSSB / WASMO
       approved laboratories on quarterly basis for initial five (5) years of O & M period. The
       water quality must conform as per standards mentioned in the tender documents
       elsewhere.

1.4.   Delivery / Commissioning
       The delivery and commissioning of all the equipments covered in this specification is
       (8) Eight months from the date of the confirmed order of supply. Earlier completion
       periods are preferred.

1.5.   Pre bid compliance undertaking:

       The bidder has to furnish a pre bid compliance undertaking in the format. Without this
       pre bid compliance undertaking, the commercial and /or technical bid will not qualify
       for participation.




Multi Mantech International Pvt. Ltd                                        12
              PART - II: GENERAL CONDITIONS OF CONTRAT
1.1.1   In this deed of agreement/ Offer, unless the context otherwise requires:-
        The Manufacturer shall mean the Manufacturer who’s Offer shall be accepted by Authority
        and shall include such Manufacturers heirs, legal representatives, successors and
        assignees.
1.1.2   The Manufacturer shall be deemed to have carefully examined all the papers, drawings, etc.
        attached in the contract. If he has any doubt as to the meaning of any portion of any
        condition/ specification, etc. he shall before signing the contract submit the particulars
        thereof to Authority in order that such doubts are removed. In addition it will be very
        important for the manufacturer to visit and understand the area before submitting the offer.
        The manufacturer shall intimate his intention to visit the site well in advance so that the field
        office of GMDC in Kutch can accompany at the site.
1.1.3   The work shall be completed within the completion period, failing which penalty at the rate of
        0.25 % per week subject to maximum of 10 % of work order value shall be imposed. This
        excludes delay in the completion of the work due to unforeseen reasons beyond the control
        and without fault and negligence of the Manufacturer including (but not restricted to) act of
        God or public anomie action of Government in its sovereign capacity, floods, epidemics,
        strikes, lockouts, fires and accidents. In the event of any of the aforesaid contingencies
        Authority may      be promptly kept informed by the Manufacturer by Fax/Telex/Telegram
        followed by confirmation in writing with documentary proof within fifteen days of
        commencement        and    cessation      of   Force Majure circumstances. Under          such
        circumstances reasonable extension of time shall be granted by Authority. Application
        for such extension must be made before the due date of completion of work as per
        agreement. In the event of termination of the agreement, Authority shall be at liberty to get
        the remaining part of the work done through any other agency/Manufacturer in the manner
        and on the terms it thinks proper. If the cost of executing the work as aforesaid shall exceed
        the balance due to the Manufacturer, and the Manufacturer fails to make good the
        deficiency, Authority may recover it from the Manufacturer in any lawful manner.
1.1.4   The Manufacturer shall have to comply with all rules, regulations, laws and bylaws
        enforced by local and State Govt. and also the organization in whose premises the work
        has to be done.
1.1.5   The Manufacturer shall not, without the consent in writing of Authority, transfer, assign
        or sublet the work under this contract or any substantial part thereof to any other party.
1.1.6   If the Manufacturer neglects to execute the work with due diligence and expedition or
        refuses or neglect to comply with any reasonable orders within two weeks notice given in
        writing to the Manufacturer and if he fails to comply with the notice, then in such a case
        Authority shall be at liberty to get the work or any part of it, executed through any other
        agency/Manufacturer in the manner and on the terms it thinks proper. If the cost of



Multi Mantech International Pvt. Ltd                                      13
Gujarat Mineral Development Corporation Limited




        executing the work as aforesaid shall exceed the balance due to the Manufacturer, and the
        Manufacturer fails to make good the deficiency, Authority may recover it from the
        Manufacturer in any lawful manner.
1.1.7   Authority shall have at all reasonable time access to the works being carried out by the
        Manufacturer under this contract. All the works shall be carried out by the
        Manufacturer to the satisfaction of Authority.
1.1.8   Any question, dispute or difference whatsoever arises between Authority and
        Manufacturer, in connection with this agreement except as to matters, the decision for
        which has been specifically provided, either party may forthwith give to the other notice in
        writing of existence of such questions, dispute, difference and the same shall be referred to
        the sole arbitration of a person nominated by Authority. This reference shall be governed by
        Indian Arbitration Act prevailing at the time of dispute and the rules made there under. The
        award in such arbitration shall be final and binding on all the parties. Work under the
        agreement shall continue during the arbitration proceedings unless the Authority or the
        Arbitrator directs otherwise.
1.1.9   Authority may at any time by notice in writing to the Manufacturer either stop the work
        altogether or reduce or cut it down. If the work is stopped altogether, the Manufacturer
        shall only be paid for work done and expenses legitimately incurred by him as on
        preparation of the execution of the work up to the date on which such notice is received by
        him. Such expenses shall be assessed by Authority whose decision shall be final and
        binding on the Manufacturer. If the work is cut down the Manufacturer shall not be paid for
        the work as so cut down, but in neither case shall be paid any compensation what so ever
        for the loss or profit which he might have made if he had been allowed to complete all the
        work included in the contract.
1.1.10 Prior to dispatch, the materials may be inspected and tested by Authority at the
        Manufacturer's works. Manufacturer shall inform Authority for such inspection at least 7
        days in advance before the probable date of dispatch.
1.1.11 The system supplied or installed shall be guaranteed by the Manufacturer for a minimum
       period of One year in regard to quality of material, workmanship, performance,
       efficiency, installation, etc. Defects developed in the system within guarantee period, shall
       be rectified by the Manufacturer at his own expense promptly. In case the defects are not
       rectified within 7 days of the receipt of the complaint by the Manufacturer, Authority shall
       have full liberty to remove such defect or undertake such repairs as may be necessary to
       restore the system in working condition. The expenditure so incurred by Authority shall be
       deducted from Manufacturer’s pending claims, security, etc. and if necessary may be
       recovered in other mode provided under the law.
1.1.12 Notices, Statements and other communications sent by Authority through registered post or
       telegram or telex or to the Manufacturer at his specified address shall be deemed to have



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       been delivered to the Manufacturer.
1.1.13 The work shall be carried out by the Manufacturer with prior approval of Authority. Work
       carried out without Authority’s approval shall not be accepted and the Authority shall have
       right to reject it and to recover the cost as so incurred, from the Manufacturer.
1.1.14 All equipment/material shall be suitably packed for transport/carriage at site and outdoor
       storage during transit. The Manufacturer shall be responsible for any damage to the
       equipment during transit due to improper or inadequate packing. The cases containing
       easily damageable material shall be very carefully packed and marked with appropriate
       caution symbols i.e. 'FRAGILE, HANDLE WITH CARE’ etc. The contents of each
       package shall bear marking that can be readily identified from the package list and packing
       shall provide complete protection from moisture, termites and mechanical shocks
       during shipment/transportation to site. Adequate protection must be provided for outdoor
       storage at site in tropical humid climate, wherever                        necessary proper
       arrangement for attaching signs for lifting shall be provided and all packages clearly marked
       with gross weight, signs showing 'UP' and 'DOWN' sides of boxes, contents of each
       package, order no. and date, name of the plant/equipments to which the material in the
       package forms the part of, and any handling and unpacking instructions considered
       necessary. The Manufacturer without any extra cost shall supply any material found short
       inside intact packing case. The Manufacturer shall ascertain prior to shipment, from
       concerned authorities, the transport limitations like weight and maximum allowable package
       size for transportation. All packing cases and packing material shall become the property of
       the purchaser.
1.1.15 The Manufacturer shall provide one copy of the instruction manual and routine
       maintenance manual in English / Gujarati with each item supplied or installed. These
       manuals should contain all the relevant details and drawings required for proper
       maintenance of the system supplied or installed.
1.1.16 The inspection as mentioned in clause No. 2.3.10 by Authority’s representative shall not
       relieve the Manufacturer from full responsibility of completing the work confirming to the
       requirement of this contract.
1.1.17 The contract may be amended and verified by mutual agreement between the Purchaser
       and Manufacturer so as to include any unforeseen situation or circumstances. All such
       variations shall be in writing and signed by the duly authorized representatives of the
       parties.




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              PART- III - SPECIFIC TERMS AND CONDITIONS

 1.2.11   The specifications for supply and installation of Solar Desalination systems are given in the tender
          documents.
 1.2.12   Manufacturer will ensure that necessary spares are always available to provide necessary after sales
          service to the customers during the guarantee period.
 1.2.13   Manufacturers, to whom work is awarded will be required to deposit security deposit of 5 % of total
          value of the work. The Security Deposit will be accepted in the form of Demand Draft issued by
          Nationalized bank / Schedule bank in favour of GMDC payable at Ahmedabad with validity up to of
          12 months from date of complete installation. No interest will be paid on the Security Deposit. The
          Earnest Money Deposit of the successful bidders will be retained as security deposit and will form part
          of the total security deposit required to be deposited by the successful bidder.
 1.2.14   It is very critical to Install & Commission systems as per the order placed by the Purchaser before the
          end of the completion period In the event of failure to supply system as committed by the Manufacturer
          as accepted by them while receiving the work order, will lead to forfeiter of the Security Deposit
          up to 100% and will lead to disqualification of the Manufacturer for transacting business with
          Authority for at least two years or the time duration as may be decided by the Authority.
 1.2.15   In case of any type of misappropriations, cheating or intention of cheating, frauds, irregularities,
          malpractice, etc. the Authority reserves the right to cancel the work order without giving reasons
          thereof and forfeit the security deposit.
 1.2.16   Rates quoted by the Manufacturer will be inclusive of taxes, levies, duties, packing, forwarding,
          freight, insurance, loading unloading, supply, installation, commissioning, and any/all charges for
          successful Supply of Solar Desalination system at in the company all expenses of marketing,
          commissions etc.
 1.2.17   The rates quoted by the Manufacturer will be inclusive of Service Tax, Work Contract Tax, VAT or any
          other taxes applicable for such work. Any escalation in such taxes/ levies during the tenure of the
          contract will not be paid by Authority and Manufacturers are advised to take in to consideration any
          such escalations in the prevailing taxes/levies/duties.
 1.2.18   No exemption certificates shall be given by Authority to the Manufacturer.
 1.2.19   Solar Desalination systems supplied shall be covered under the warranty, against any manufacturing
          defect, for a period of 12 months from the date of commissioning of the system. The manufacturer shall
          undertake or shall arrange for repairs/ replacement free of cost during the warranty period.
 1.2.20   During O & M period of this plant by manufacturer all replacements of parts / components shall be the
          responsibility of manufacturer.
 1.2.21   Product Water Quality Parameter Test
          The product water quality shall be tested regularly in the laboratory set up at the plant site by the
          manufacturer. The product water shall be got tested for verification and confirmation through Public
          Health Engineering Laboratories of GWSSB / WASMO approved laboratories on quarterly basis for
          initial five (5) years of O & M period. The water quality must conform as per standards mentioned in
          these tender documents elsewhere.
1.3       Delivery / Commissioning
          The delivery and commissioning of all the equipments covered in this specification is (8) Eight months
          from the date of the confirmed order of supply. Earlier completion periods are preferred.
  1.4     Pre bid compliance undertaking:
          The bidder has to furnish a pre bid compliance undertaking in the format as per Annexure - III. Without
          this pre bid compliance undertaking, the commercial and /or technical bid will not qualify for
          participation.




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              INSTRUCTIONS TO BIDDERS




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                        Instructions to the bidders:
    PART- I
    •   This document relates to the qualification application for Qualification of
        manufacturer or consortium of manufacturer and construction contractors for the
        work.

    •   Applicants may be from a single manufacturer or from a consortium of firms.
        One company may only be included in one application (Single or consortium/joint
        venture).

    •   The consortium/joint venture shall comprise of two firms only (local or local with
        foreign) joining together for the purpose of pre-qualification, tendering and
        executing a particular contract upon the completion of which the consortium
        terminates.

    •   Bid Security as well as all other deposits shall be in the name of lead partners
        only.

    •   Should applicants have any queries regarding the post-qualification documents,
        these should be in writing to the following address.

                      General Manager,
                      Gujarat Mineral Development Corporation Ltd.
,                     Khanij Bhavan, University Ground, 132 feet Ring Road
                      Vastrapur, Ahmedabad 380052.
                      Phone: 079-27912747 Mobile 97277 92625,
                      Fax: 079-27911454 e- mail csr@gmdcltd.com.

            •   All queries regarding Post-Qualification can be sent by E-MAIL to:


                      SHRI P. K. SONI ,
                      General Manager (CSR),
                      Gujarat Mineral Development Corporation Ltd.
                       AHMEDABAD


        •   All documents submitted, within due time and date, by the applicants will be
            treated as confidential and will not be returned.
        •    General Manager (CSR) will inform all applicants of the result of their
            application. The GMDC reserves the right to reject or accept any application
            and to annual the Post-qualification process and reject all applicants, without
            thereby incurring any liability to the affected applicants or any obligation to
            inform the applicants of the ground for the action of GMDC.


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       •   The General Manager (CSR), will not reimburse any costs involved in the
           preparation and submission of Post-qualification document or in connection
           with any site visits made.
       •   The applicant shall have to furnish the mandatory information failing which the
           bidder may get disqualified.

               a      Reference list of works of Solar desalination Plant or Solar Thermal
                      based systems, storage sumps, and other Civil execution as per
                      appendix along with the supporting documents such as copy of
                      contract and copy of certificate issued by the client.
               b      Financial statement as per appendix A, A-1 and A-2 and the
                      testimonials.
               c      General Information in Application form (1)
               d      Structure and organization of the bidder in Application form (1-A)
               e      Joint venture agreement if the application is made on joint venture
                      basis duly notaries & on judicial stamp of Rs. 100.00

       •   The post-qualification application shall consist of covering letter and
           supporting documents related to the details of appendix filled in on line and
           the same will be arranged in the following order.

               1)     Covering letter of the applicant.
               2)     Information regarding the applicant and their partners only typed
                      matter and not the brochures.
               3)     Joint venture agreement if the applicant is based on joint venture.
               4)     Supporting documents related to Appendixes and Tables in above
                      order by adding separator for each appendix.

       •   The Contractor shall have to provide along with the Post Qualification
           proposal, copies of their annual accounts certified by the Charted
           Accountants for the year 2007-2008, 2008-2009 and 2009-2010 duly
           notarized

       •   GMDC reserves the right to call for original of the supporting documents for
           verification, if deemed fit and also approach to their previous clients /
           consultants etc. to check back the correctness of details furnished by the
           agency at any time. In case submitted document are found to be false, GMDC
           reserves the right to treat it as a case of misrepresentation and cancel the
           Post Qualification or take such other action as deemed appropriate.

       •   In case of J. V., in Financial Evaluation, Points will be awarded on Pro Rata
           basis to the stake in the project of each member.


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       •   GMDC reserves the right to:
           1.  Amend the scope and value of any contracts under the bid, in which
               event the contracts will only be among those Post qualified bidders
               who meet the requirements of the contracts as amended;
           2.  Reject or accept any application; and
           3.  Cancel the Post-qualification process and reject all applications.
           4.  To distribute the work more than one agency.

       The Employer shall neither be liable for any such actions nor be under any
       obligation to inform the Applicant of the grounds for them
   .
       •   All the B.G. shall be in the name of lead partner only.
       •   All the documents required for Post Qualification and Technical Evaluation,
           such as Annual Reports, J.V. Agreement, consent letters of suppliers,
           experience certificates, work completion certificates and all the documents
           shall have to be uploaded digitally signed and the same shall have to be
           submitted in the form of CD and hard copy in physical submission.
       •   Guarantee and Warranty
           The manufacturer shall provide a guarantee that the system / equipments
           are free from any defects, design or workmanship and carries a warranty of
           one year on complete equipment.
       •   The work under this specification shall be guaranteed to meet the performance
           requirement as called for in the specifications and annexure in all respects. The
           manufacturer shall provide a guarantee that the system / equipments are new and of
           high quality and free from defects in design, material and workmanship. They are
           also complete in all respects conforming to latest revision of relevant Indian
           standards.




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                                 PART – II: INSTRUCTIONS TO BIDDERS
         Eligibility Criteria
   This is a special type of work involving the expertise in setting up of water desalination
   plants purely on a solar based technology. No other conventional energy input is
   contemplated. The manufacturer having experience and known by MNRE or GEDA are
   eligible for supply and installation of solar desalination system whose product confirms to
   MNRE or GEDA specification. The manufacturers shall be preferred who submits a
   certificate from MNRE/GEDA that they are known manufacturer of Solar Thermal system.

   The manufacturer of Solar water desalination plants or solar thermal based systems shall be
   considered as qualified for this assignment if the following financial / technical and
   experience criteria are satisfied.

3.1.     Financial Criteria
         Minimum Financial Strength shall be as under
           No.
                i.)     Average annual turnover for last three years in          Rs. 300 Lakhs.
                        manufacturing of Solar Thermal plants (Year 2009-10,
                        2008-09, 2007-08)
             ii.)       Net worth of last year i.e. 2009-10                      Rs. 100 Lakhs
            iii.)       Net cash How available in 2009 – 10                      Rs. 60 Lakhs

3.2.     Technical Criteria
       3.2.1.         Only manufacturers of solar thermal based system shall be eligible to quote.
       3.2.2.         The bidder must have manufactured and commissioned at least the following
                      quantities of Solar based application systems in various fields in last five years
                      (2005 onwards).
                          One systems of 3 MW capacity manufactured, or two systems of 1 MW
                         capacity or three systems of 0.50 MW capacity.
                         The bidder shall have minimum one years experience of maintenance of at
                         least one solar based thermal systems of 0.50 MW or more capacity.
       3.2.3.         The known manufacturer of solar thermal based plants with MNRE or GEDA shall
                      be preferred.
       3.2.4.         The manufacturer has to produce a qualification data duly self authenticated along
                      with factual supporting documents.




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         INFORMATION REQUIRED TO BE FURNISHED BY
                       APPLICANTS

1.1    The qualification information required is to be furnished in the enclosed forms. The
       applicant’s proposals regarding the approach and resources for the contract as
       described below the parameters and criteria relate to the concerned.

1.2    This is a post-qualification process. Post-qualification inquires into the capacity of a
       contractor to undertake the project of this size and magnitude but not his preparedness
       for the specific project under this tender process. Post-qualification does not validate
       contractor’s preparedness for this project or his technical mobilization strengths for the
       project. Post-qualification does not mean post-qualification of the contractor.

1.3    Litigation History:
       The applicant should provide accurate information on any litigation or arbitration
       resulting from contracts completed or under execution by him over the last five years. A
       consistent history of litigations against the applicant or any partner of a joint venture may
       result in rejection of the application.
       If there are cases of arbitration and litigation which had significant effect on the project
       completion, the construction contractor shall loose 7.5 marks from the total marks scored
       by it during this Post-qualification process. However, the project cost and the nature of
       arbitration / litigation shall be given due consideration while doing this.

1.4    In addition to the forms, the applicants shall annex the following documents to their
       applications duly digitally signed and the same shall have to be submitted in the form of
       CD.
       1)     A photocopy of the business registration certificate by a competent national
              authority stating full name of the applicant, the person or persons or board
              authorized to represent the applicant, the date and place of registration as a
              contractor.
       2)     Power of Attorney stating clearly person or persons authorized to sign the
              application.
       3)     Joint venture or consortium agreement on Rs. 100.00 stamp duly notarized.
       4)     Detailed information and documents to prove qualification and technical
              capability attributes listed of a contractor/supplier nominated by the applicant.
       5)     Annual Reports and audited accounts for Last three Years duly approved copy
              should be notarized.

1.5    If the applicant wishes to submit further information to demonstrate his ability and/or to
       support his previous working record, he should attach such supplemental information to
       the documents.




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                                    FORMATS




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                                                                       Appendix – A
     Each member of the consortium should give all the details for each of the
 following appendices. Points will be awarded pro-rata to the stake in the project
                               of each member.

 Sr.      Name of the Consortium                  Role of the   Equity Stake in Project.
 No.             Member                            Member




Signature of Contractor




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                                                                    Appendix - A-1
                Financial Resources in on going projects
 Sr.        Description of on           Total cost    Member’s        Funds required
 No.         going projects                 of       contribution    to be contributed.
                                       work/contra       (%)
                                            ct
    1                2                      3             4                  5




•       Net worth shall be determined as the sum of the equity capital and free reserves.
•       Net Cash Accruals shall be determined as the sum of profit after tax and
        depreciation in that year.




Signature of Contractor



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                                                             Appendix A-2
                                Financial information
Yea                  Annual Turnover in Rs. Lacs            Net worth     Net
 r        Solar           Civil         Other      Total   In Rs. Lacs   Cash
         based         Engineering     Projects
         Project        Projects
 1          2               3             4         5          6          7




Signature of Contractor




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                                                                                              Appendix – B
          Experience in Execution of Solar Based Thermal System Projects (Not Less than 2MW Capacity)

Sr.      Name of the             Project Capacity in   Cost of the   Brief Details of    Year of    Delay in months
No    Consortium member          MW With Name &           project        Project          work          from the
 .                               Address of Client &   in Rs. Lacs    components        Completed   Scheduled date
                                    Contact No                                                       of completion




                                                                                              Signature of Contractor




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                                                                                                  Appendix – C

                                                    RCC Reservoir or U/G Sump
                  (Each Civil Work Should Be Stated Separately For Each Member of the Consortium)

Sr.    Name And           Name of          Capacity Of RCC         Delay in Months from       Whether Project Under
No     Address of         Project          Reservoir or U/G    Scheduled Date of Completion   Litigation (Yes / No) &
       Client with                              Sump                                              reasons thereof
       contact no.                        (100 Cu M or more)




                                                                                                 Signature of Contractor



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                                 Application Form (1)
                                 General Information
All individual firms and each partner of a joint venture applying for Post-qualification are
requested to complete the information in this form. Nationality information to be
provided for all owners or applicants who are partnerships or individually- owned firms.

Where the Applicant proposes to use named subcontractors for critical components of
the works, or for work contents in excess of 10 percent of the value of the whole works
the following information should also be supplied for the specialist subcontractor(s).

1.   Name of Firm



2.   Head office address



3.   Telephone                                          Contact



4.   Fax                                                Telex



5.   Place of incorporation/registration                Year       of      incorporation/
                                                        registration




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Sr.                                    Nationality of owners
No Name                                                    Nationality
 .
1.


2.


3.


4.


5.




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                   Name of Bidders officers / Persons to be contacted
Name.                    Address                    Phone Nos.        Fax.




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                                                         Application Form (1A)
                             Structure and Organization
1. The applicant is
   a) an individual
   b) a proprietary firm
   c) a firm in partnership
   d) a Limited Company or Corporation
   e) a group of firms/joint venture (if Yes, give
      completion information in respect of each
      partner)

2. Attach the Organization Chart showing the
   structure of the organization including the names
   of the Directors and position of officers

3. Number of years of experience:
    a) As    a    Prime    Contractor    (contractor
        shouldering major responsibility

    b) In a joint venture

    c) As    a    Sub-contractor     (specify     main
        contractor)

4. For how many years has your organization been
   in business of similar work under its present
   name? What were your fields when your
   organization was established? Whether any new
   fields were added in your organization? And if
   so, when?

6. Were you ever required suspending construction
   for a period of more than six months
   continuously after you started? If so, give the
   name of project and give reasons therefore

7. Have you ever left the work awarded to you
   incomplete? If so, give name of project and
   reasons for not completing work.

8. In which fields of civil engineering construction
   do you claim specialization and interest?

9. Give details of your experience in using heavy
   earth moving equipment and quality control in
   compaction of soils.

10. Give details of your pressure pipe testing
    experience and facilities.




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                                 TABLE NO. 1
                             CURRICULAM VITAE

 Sr.        Details




     1.     Name

     2.     Age

     3.     Qualifications

     4.     Experience in Project Related field.

     5.     Other experience

     6.     Employment Record.

           Sr. No.           Period                Organization   Status




Note:
          The contractor’s project Team should consist of persons in the following
                disciplines.
a)         Pipeline works / water supply / gas;
b)         Other civil engineering works;
c)         Project management;




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                                          TABLE 2

                       BIDDER'S FINANCIAL CAPACITY

Sr. No.        Financial Year         Annual Turnover in          Net worth         Net Cash
                                      Engineering projects.
     1.          2007-2008

     2.          2008-2009

     3.          2009-2010



NOTE:

1)        Figures to be taken from audited balance sheets.
2)        Copies of the balance sheet to be attached.
3)        Separate sheets should be provided for each member of the consortium.
4)        The bidder shall have to establish that for a period of at least 4 months the bidder has
          ability to sustain negative cash balance and how he proposes to meet with the same.
5)        Cash Plan / Cash flow Statement.




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                     TABLE - 3
    DETAILS OF ONGOING PROJECTS AS ON UP TO DATE

   Name of       Value of remaining works on      Start date   Likely date of    Project
   Project           up to date in Lakhs.                       completion.     Authority.




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                      TABLE - 4
     HISTORY OF ARBITRATION CASES AND LITIGATION

Name of     Type and       Date of     Date of    Date of   Value of     Value of the      Date of        Type and
Project      nature of    award of   prescribed    actual     the       disputed work     arbitration   nature of civil
             contract     contract   completion   comple    contract      for which       reference       suit if any
          EPC/Turnkey /                             tion                arbitration has                  with date of
            Item Rate                                                  been resorted to                     filing




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                        TABLE - 5
        BIDDER’S FINANCIAL CAPACITY (WITH BANK
                      STATEMENT)

Name                        Amount         Certificate   Pending          Pending in
                            of Loan        of bank       outstanding      quarter
                                                         amount




Pl. furnishes the letter from the Bank showing the fund based as well as non fund
based facilities avail from bank.




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                             SECTION -II

       GENERAL INFORMTION
     TECHNICAL REQUREMENTS




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                                       SECTION - II

       GENERAL INFORMTION AND TECHNICAL REQUIREMENTS
3.      General Information
3.1.    Background
        Gujarat Mineral Development Corporation (GMDC) a Govt. of Gujarat
        undertaking has developed lignite Mines at Mata no Madh in Kutch District.
        During mining operation, it is necessary to have the mines free from sub soil
        water to ease the excavation. During this process approximately 12.00 Lakhs
        liters per day of raw water is available from the mines. This sub soil water is
        polluted and contains undesirable chemicals and is unfit for any direct use or
        disposal on the land. This water needs to be utilized properly with adequate
        treatment so that the water can be used for the drinking purpose by the colony
        of GMDC and also treated water can be used the near by rural habitations for
        agricultural and other uses.


        As per the chemicals analysis report the quality of mine water is as under:



                                    Mines water
           PH                                     4.61
           TDS mg/ Lt                             4802
           TS mg/Lt                               5140
           TSS mg/Lt                              338
           COD mg/Lt                              20
           BOD mg/Lt                              11
           Fluoride mg/Lt                         1.2
           Sulphate mg/Lt                         1363
           Chloride mg/Lt                         594
           Zink mg/Lt                             Below detecting level
           Chromium mg/Lt                         Below detecting level
           Copper mg/Lt                           Below detecting level
           Nickel mg/Lt                           Below detecting level
           Oil & Grease                           0.39
           Phenolic Compounds                     0.0041


        The above water parameters may change form time to time as well as with the
        change in depth of excavation of mines. The bidders are requested to visit the
        sites and get him-self satisfied with the row water characteristics.




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       Looking to the quality of raw water observed in mines it can be seen that the
       raw water received from mines can not be straight away discharged in to
       natural drainage systems such as, Rivers revaluate etc.

       Looking to the quality of raw water it will need multiple treatments such as
       neutralization of raw water for bringing pH in to a range of 6.5 - 8.5,
       sedimentation for bringing down the Total Solid (TS) and Total Suspended
       Solid (TSS) within a reasonable range for further treatment to remove dissolved
       solids.


3.2.   Technological Options :-
       Looking to the chemical parameters as stated in Para 1.2 TDS of raw water,
       sulphate chlorides etc. following technological options can be considered for
       the treatment of this polluted water.
           1. Reveres Osmosis (RO) process
           2. Distillation
                 a. Distillation through thermal energy.
                 b. Distillation through solar energy.
           3. Ion Exchange.
           4. Thermal compressed vapor based process


       The cost effective treatment process needs to be adopted. On preliminary study
       and examinations, Reveres Osmosis (RO), Ion Exchange and Thermal
       compressed vapor based processes needs intensive use of external energy of
       electric power or vapor produced by use of Coal / Fuels / Gas etc. This is a
       recurring requirement resulting in very high operational costs. In case of solar
       energy once the plant is setup the recurring cost of energy is practically nil and
       hence in long run the solar based technology can certainly be very cost
       effective. The process based on solar technology shall also save huge natural
       resources of energy and it will also extend a noteworthy CDM benefits.

       GMDC in consultation with the organizations working on water / waste water
       treatment came to a conclusion that water treatment through solar energy will
       be a very cost effective technological option to solve the problems of treatment
       of waste water available from the mines and its appropriate use for drinking
       purpose.




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Gujarat Mineral Development Corporation Limited




3.3.   Water scenario :-
       The Kutch District is arid and faces frequent droughts resulting in drinking water
       problems to the population of Kutch. The Mata no Madh mines sites are on
       extreme west of Kutch District near to sea coast. The ground water in the area
       is saline and the drinking water demand is required to be satisfied by bringing
       water from distance places. The Mata no Madh mines and habitations near by
       these mines are at the most remote placed. Looking to the geographical
       location it will be desirable to develop local dependable water sources, so the
       local sources will take care of minimum water needs. In view of this it is
       desirable to utilize the treated water available from the solar energy based
       water treatment plant to be setup at Mata no Madh mines sites for drinking
       purpose in the habitations near by the mines.


3.4.   Installation of 1 (one) MLD Water treatment plant based on Solar Energy :-
       In view of above, GMDC intends to facilitate the installation of 1 (one) MLD
       water treatment based on solar energy at Mata no Madh lignite mine site in
       Kutch district. The general raw water chemical characteristics from mine water
       are given earlier. Total availability of raw water / day is around 12 Lakhs liters.
       This 12 Lakhs liters water needs to be treated so that the treated water is used
       for drinking and other purpose. The manufacturers may develop a concept of
       designing total solar based water desalination treatment plant in such a way to
       obtain maximum treated water and the least quantity of reject water. The plant
       shall be capable of providing more than 80% of treated water before blending of
       water if any and less that 20% of reject water. The design providing less than
       10% reject water along with residual solids shall be given preference. This
       reject water may have a very high concentration of different undesirable salts.
       The disposal of the reject water is very important aspect to be looked in to. The
       manufacturer should also devise an appropriate technology to extract suitable
       minerals from the reject water quantity and can generate some revenue or
       deposit making it a zero discharge plant. The manufacturer should incorporate
       the arrangement for sludge drying and it’s appropriate into a systematic land
       filling sites. The distilled water quantity up to 90% of the raw water input shall
       be preferable. However under any circumstances it should not go below 80%.
       The solar desalination can be achieved by distillation and condensation. Water
       is first heated to boiling, the water vapor rises to a condenser where cooling
       water lowers the temperature so that the vapor is condensed, collected and
       stored. Most contaminants remain behind in the liquid phase vessel. The output


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Gujarat Mineral Development Corporation Limited




          water thus shall be practically distilled water containing no dissolved salts. The
          treated water for drinking purpose should contain some salts which are required
          for human consumption. If necessary a blending to certain extent shall be
          allowed to convert the water into potable limits.


          The treated water to be utilized for drinking purpose shall meet with the
          following quality parameters after different preliminary and final treatments shall
          be as under.
                                  Drinking Water Quality Standard
      Sr. Parameter                           Unit     Treated water from Solar
                                                       desalination plant
      1      pH at 25OC                       NTU                7.0 – 7.5
      2      Turbidity                        mg/l                   <1
      3      Total Dissolved Solids           mg/l                200-500
      4      Total Hardness as CaCo3          mg/l                  <300
      5      Flouride                         mg/l                   <1
      6      Chloride as Cl                   mg/l                  <250
      7      Nitrate as NO3                   mg/l                  <45
      8      Sulphate as SO4                  mg/l                 < 200
      9      Total Fe                         mg/l                  <0.3
      10     M-Alkalinity as CaCO3            mg/l                  <200
      11     Removal of microorganisms        %                    100 %
             (bacteria & Virus)


          Looking to the raw water characteristic it has been decided to call offers
          through e-tendering from the experienced firms for setting up Solar desalination
          water treatment plant for 1 MLD treated water.
          The total management for procurement and setting up of solar desalination
          plant shall be handled by the GMDC.

          It is also decided to release the blended treated water and partially treated
          water n to near by DEDRANI DAM. The bended water shall be confirming to
          GPCB standards for agricultural use. For partial treatment a plain
          sedimentation tank of 0.50 MLD capacity with required other structures such as
          inlet chamber, flash mixtures, sludge outlet valves & chambers etc and sludge
          drying beds. The treated water of solar desalination plant & partially treated
          water shall be blended in sump of 100 m3 capacity from where the blended
          water shall be released to natural drain through RCC NP2 Pipeline of 600 mm
          dia and approximate 1500 meters length. The natural drain is leading to



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Gujarat Mineral Development Corporation Limited




        Dedrani Dam. The PST shall be of rectangular in shape & minimum 100 m3
        capacity. Baffle walls shall be provided to increase the length of the path. The
        settled sludge shall be sent to sludge drying beds for drying, and the effluent
        shall be sent to raw water balancing reservoir. Moreover an Intake well with
        pump house above it shall be provided in the existing raw water tank which
        shall act as a balancing reservoir. The raw water from mine is coming round the
        clock in to the tank while solar based Desalination plant can function in day
        time only. The Intake well may be of circular or rectangular in shape, and it
        shall be of minimum 20 square meters in size. A pump house of equal size
        shall be provided above it. Pumping machinery shall be provided for supply of
        raw water to Desalination Plant as well as to Partial WTP. The capacity of the
        Pumping machinery shall be 150 cubic meters per hour against actual required
        total head, so as to fulfill the requirement in 10 hours. HDPE Pipe of 6 kg/cm2
        of required size and required length shall be provided from Intake well to inlet
        chambers of both plants.

3.5.    Financing of Solar Desalination water treatment plant
           This is a sole venture of GMDC.
           The 100 % capital cost shall be provided by GMDC.
           The required funds shall be made available for payment to agency by
           GMDC.
           The operation and maintenance cost to be paid to the agency shall be
           provided by the GMDC.

4. Scope of work, technical specifications and general conditions:


4.1.    Scope of work:
        Scope of Work includes following:
2.1.1   Supplying and installing solar desalination water treatment plant having
        capacity to treat 1 MLD raw water including required components, accessories,
        piping and required disinfection systems.
2.1.2   Life of the Solar Thermal Brackish Water Desalination plant shall not be less
        than 25 years. The manufacturer or the agency shall have to give initially a
        bank guarantee for a period of Five years @ 2.5 % of the system cost against
        the stated life of the plant as 25 years. This bank guarantee should be
        extended every five years till the minimum life of 25 years is over. This
        guarantee shall be in addition to the performance guarantee for stipulated time
        of the contract.
2.1.3   The scope of work shall also include the following infrastructure.




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Gujarat Mineral Development Corporation Limited




          2.1.3.1     Development and land scaping of the premises of the plant and
                      construction of internal roads and approach as per requirement.


2.1.3.2 Intake well with Pump house of 20 square meters size in the existing
          raw water tank


2.1.3.3     Pumping machinery in pump house having capacity, to pump raw water from
          existing raw water tank (balancing reservoir) to Desalination Plant and Partial
          WTP, 150 cubic meters per hour against required head. .
          2.1.3.4     Office building with Guest room and adequate Laboratory facility
                      with equipments and appurtenances for testing and examining the
                      raw water and treated water for chemical as well as bacteriological
                      parameters. – 200 M2 .
          2.1.3.5     A building facility for accommodating operating staff– 200M2
          2.1.3.6     150 M3 Capacity of raw water R.C.C tank in M:300 with inlet water
                      meter.
          2.1.3.7     200 M3 Capacity of treated water R.C.C. tank with R. C. C. roof in
                      M:300.
          2.1.3.8     Chain link fencing to the entire plant area with attractive gates of
                      minimum 5 Meter and 1 M width and security cabin of 2x 2 m.
          2.1.3.9     Partial water treatment plant of 0.50 MLD capacity.
          2.1.3.10    100 m3 capacity blended water RCC tank in M:300(without roof)
          2.1.3.11    Providing lowering laying & pointing of 600mm dia RCC NPL class
                      pipeline with 2.0X2.0X2.5mt size mixing chamber and 4nos of
                      1.3X1.3X1.4mt one inspection chambers.
2.1.4     The scope of work shall include operation, maintenance and servicing of intake
          well, raw water P M/c and the Solar Desalination plant, partial treatment plant
          all other works covered in this tender in following manner.
        2.1.4.1      The company will arrange for minimum 5 (Five) experienced and
                     skilled operators to run clean and operate the plant efficiently.
        2.1.4.2      The company should deploy minimum 2 (Two) well qualified Engineer
                     / Supervisor for overall supervision, filing logbooks, generating data
                     and reports to be submitted to the department every month.
        2.1.4.3      The   maintenance      and   servicing   shall   include   the      required
                     consumables, chemicals, replacement of parts and components for
                     smooth running of the plant. However electric connection required for




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Gujarat Mineral Development Corporation Limited




                    intake well & energy bill for Intake well P M/c shall be in the scope of
                    GMDC.
4.2.     Technical Specifications for Solar Based Desalination Plant:
         The technical specifications shown below are based on Solar Parabolic
         Concentrated technology. Any other technology which can deliver the same or
         more amount of treated water using any other solar technology can also be
         eligible to quote.
         The Plant shall be divided in two unit of equal capacity so that in event if
         closure of plant for any reasons 50% of the plant confirmative operative.
         The specification of Solar Parabolic Concentrated Scheffler technology with the
         following components:
2.2.1.    Parabolic Concentrators
2.2.2.    Receivers
2.2.3.    Steam Header
2.2.4.    Steam pipe line (branch) & feed water pipe line
2.2.5.    Water pipes of required size




         Parabolic Concentrator:
         Elliptical Dish of multiple pieces of reflecting mirrors supported with a rigid
         Frame to form concentrator.
         Reflective Area               : 16 m2 minimum.
         Wind Bearing Capacity         : 200 km/hour
         Top Axis                      : 5.7m
         Side Axis                     : 3.4m
         Material of Construction:
         Frame                         : Mild Steel as per IS 2062
         Rotating Support              : Mild Steel as per IS 2062
         Stands                        : Mild Steel as per IS 2062
         Exterior Finish               : Red Oxide Primer – Anti corrosive paint,
                                         3 coats Synthetic Enamel - P.O.
                                         Red - 3 coats
         Mirrors:
         Make                         : Saint Gobain
         Reflectivity                 : High Reflective Mirrors having more than
                                         85% efficiency



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Gujarat Mineral Development Corporation Limited




       Thickness                    : 2.5 to 3mm
       Back Coating                 : Silver Coating to prevent degradation
       Receiver:
       MOC                           : Boiler Quality Steel
                                      SA 516, Gr.70
       Central Tracking System:
       The Central Tracking System tracks the movement of the sun all day through
       by means of Timer, Gear Box, DC Drive Motor wire ropes etc.
       Electronic Timer & Relay – The timer is so set to automatically control the gear
       box and drive motor. It has an inbuilt battery charger. In the event of power shut
       off the timer shall work on battery power.
       Counter Weight:
       The same is constructed in Concrete min. in M-20 – its main function is to
       counter balance the weight of the system and also drive the tracking.
       Wire Ropes:
       Size                      : 3mm up to 8mm
       Construction              : Mild Steel – GI Plated
       Type                      : 6x19 Lay
       Pulleys & Gears:
       MOC                       : Alloy steel
       Steam Header Pipes:
       Size                       : 10” OD 273 MM x 9.27 MM Wall thicknesses
                                     Construction Seamless, Sch.40
       Steam Pipe Lines:
       Size                     : 1” & 1.5” Seamless, Sch.40
       Valves:
       Safety Valves            : Spirax
                                 Forbes Marshall
       Globe Valves            : Spirax
                                Audco
       Flow Meters For         : For Inlet and outlet of reputed brand approved by
       Inlet and Outlet          ULTRALINE, KROHNE, ABB, E & H,
                                 SHENITECH.
       Structures:
       All Steel structures pertaining to IS 2062 are fabricated in to Tressels to support
       the Steam Header, Receivers, Steam feed water Pipelines, Central Tracking
       System. The Solar system and the tressels are mounted on bearing plates fixed


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Gujarat Mineral Development Corporation Limited




       to the ground and further strengthened by hardening chemicals. All R.C.C.
       structural members shall be in M: 25 and water retaining R.C.C. structures shall
       be in M: 30, reinforcement that shall be C.R.S.
       Infrastructure:
       Infrastructure such as developing of land scaping, office building etc. shall be
       designed and got approved by GMDC. The adequate drinking water, sanitation,
       lighting etc. shall be provided. Adequate lighting and leveling of the premises
       shall be provided for smooth movement in the premises and required
       convenience.


2.3    Technical requirements for Partial Water Treatment Plant:


2.3.1. Raw water characterizes and partial and WTP scheme.
       Raw water characterizes scheme of the water from the mines is
       varying time to time however indicative values are given in the
       above section
       .
2.3.2. Desired Characterized of water after Partial treatment.
       The Raw water coming from the mine is of varying nature & its
       values of impurities are different at different times of the year.
       However the agency shall design the partial WTP the agency shall
       design the partial WTP so that at least 50% values of the following
       parameter shall be reduced.
         a. Total dissolved solids.
         b. Sulphate.
         c. Chlorides.

2.3.3. Partial Water Treatment Process: -
       The proposed partial WTP shall comprise of the Intel chamber cum
       cascade type
       Aerator, Horizontal flow baffled flocculator, sedimentation tank and
       sludge drying beds.
       The raw water from the Intake well shall be taken in to the Intel of
       Partial WTP and treated water shall be collected in the proposed 100
       m3 capacity sump. The total head loss in the partial water treatment
       plant shall be limited to 2.5 mt. The sludge from the sedimentation
       tank shall be taken in sludge drying beds. The effluent from the
       sludge drying beds shall be collected and sent to existing raw water
       tank by gravity. The necessary under ground drainage system shall

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Gujarat Mineral Development Corporation Limited




       be designed and provided by the agency under the scope of this
       work.




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Gujarat Mineral Development Corporation Limited




2.3.4. Design Criteria: -

         Cascade Aeration:
In cascade aerators water is allowed to flow downwards after spreading over
inclined surface in thin sheets and the turbulence is secured by allowing the water to
pass through a series of steps or baffles.
Design criteria:-
No of Steps            :        4 to 6 (Exposure time can be increased by increasing the
                               number of steps and the area to volume ratio improved by
                               adding baffles to produce turbulence.)
Head requirement        :      0.5 to 3 m
Space requirement       :      0.015 to 0.045 m2/m3/hr


Removal of gas varies from 20 to 45 percent for CO2 and up to 35 percent for H2S


Horizontal Flow baffled Flocculator:-
This flocculator consists of several around-the end baffles. This flocculator is suited for
small treatment plants. It is easier to drain and clean. The head loss can be changed as
per requirement by altering the number of baffles.


Design criteria:-
Distance between the baffles           :      Not less than 0.45 m (to permit cleaning)

Clear distance between the
end of each baffle and the wall        : 1.5 times the dist. btw the baffles, not < than
0.6m

Water Depth                            :      not less than 1 m

Water Velocity range                   :      0.10 to 0.30 m/s

Detention Time                         :      15 to 20 mins

Velocity Gradient                      :      10 to100 s-1


Sedimentation:




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Gujarat Mineral Development Corporation Limited




Sedimentation is the separation from water by gravitational settling of suspended
particles that are heavier than water.
Design criteria
Surface loading (m3/m2/d)-for avg design flow       :      15 to 30

Detention period (hr)                               :      3 to 4

Weir loading (m3/d/m)                               :      normal – 300; well clarified
                                                           water – 1500


A well design tank should be capable of having a volumetric efficiency of at least 70%.




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Sludge Drying Beds:
Dewatering, drying and sludge removal cycle :      1- 2 weeks
Depth of Sludge application solution        :      15 – 30 cm
Depth of Sand bed                                  :       20 cm
Depth of Gravel media                       :      30 cm
                                   Reference Sketch
Cascade Aerator:




Horizontal Flow baffled Flocculator:




Sedimentation tank:




Sludge                                                                  Drying
Beds:




                      Cross sectional view of Sludge drying bed

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Gujarat Mineral Development Corporation Limited




3.1.0.   Office Building Including Guest Room and Laboratory.

         Total Area      -200 Square Meters with toilet facility

         RCC framed structure in M20 with BB masonry in C.M. 1:6.
         (i)   Plinth height – minimum 1 M Above finished Ground Level.
         (ii)  Foundation – Minimum 1 m. deep from G.L OR As per structural
               requirement.

         Further requirement shall be as under:

         (i)      Wooden doors, windows, ventilator shall be provided.
         (ii)     15 mm thick cement plaster in C.M. 1:3 shall be applied on inner faces.
         (iii)    20 mm thick sand faced cement plaster in C.M. 1:3 shall be applied on
                  outer faces.
         (iv)      Vitrified tile flooring shall be provided in Laboratory and acid resisting
                  tiles shall be fixed on walls
         (v)      Best quality of approved vitrified tiles shall be provided in all other area.
         (vi)     Distemper paint shall be applied on inner faces of room.
         (vii)    Snowcem cement paint shall be applied on outer faces of walls.
         (viii)   PVC pipes of100 mm dia shall be provided for rain water down take
                  pipes.
         (ix)     Parapet wall of BB masonry in C.M. 1:6 shall be of 60 cm height above
                  top slab.
         (x)      The reinforced concrete roofs shall be made waterproof by providing
                  china mosaic using white glazed tile pieces fixed on OP cement and
                  joints filled with white cement. The finished roof surface shall have
                  adequate slope to drain quickly the rainwater to R.W down take inlet
                  points.

         Toilet facility shall include
         (i)        W.C. with colored porcelain European pan of approved quality with
                    flushing cistern of 5 Liter capacity.
         (ii)       Urinal of size 600 mm x 400 mm x 30 mm flat back type.
         (iii)      Wash basin of size 510 mm x 400 mm in colored porcelain with inlet,
                    outlet & overflow arrangements.
         (iv)       Mirror of size 400 mm x 600 mm wall mounted type shall be fitted
                    over wash basin.
         (v)        Plastic liquid soap bottle shall be provided.
         (vi)       Chromium plated brass towel rails minimum 750 mm long.
         (vii)      All stop cocks, valves & pillar cocks shall be provided of heavy duty
                    chromium plated brass.
         (viii)     All fittings such as ‘P’ or ‘S’ trap, floor taps, pipes, down take pipe,
                    etc.
         (ix)       The sewage from toilet block shall be led to septic tank – soak pit.
         (x)        Pipes shall be of ‘C’ class for concentrated plumbing.
         (xi)       PVC water tank of 500 Liters capacity over roof with required G.I.
                    connection.



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3.1.1. Staff Quarters

       Staff Quarters shall be constructed in RCC framed structure in M20 with BB
       masonry in C.M. 1:6 suitable to accommodate 6 units. The Staff Quarters are to
       be constructed in single storied building.

       Each unit is to be provided with minimum following sizes of rooms:

       Drawing room          -         4.00 x 3.00 M
       Bed room              -         3.50 x 3.00 M
       Kitchen               -         2.00 x 3.00 M
       Bath                  -         1.20 x 1.88 M
       W.C.                  -         1.20 x 1.00 M
       Verandah / balcony    -         3.00 x 1.20 M

       Minimum height of each room shall be 3.00 M.
       Plinth height shall be 1 M.
       Required arrangement for staircase for access to terrace shall be provided of
       minimum 1.25 M width.

       Following are general requirements for Staff Quarters:

       1.     All building works shall be of reinforced concrete framework.
       2.     All external walls shall be in 230 mm thick brick masonry built cement
              mortar in 1:6.
       3.     All internal partition walls except for toilets shall be in 230 mm thick
              brick masonry built in cement mortar 1:6.
       4.     All internal masonry surfaces finish shall have 13 mm thick plain faced
              cement plaster in cement mortar (1:4) with neat lime or near finish on
              top. Over this, one coat of primer and two coats of plastic emulsion paint
              of approved quality and shade shall be provided.
       5.     All external masonry surfaces shall have 20 mm thick sand faced cement
              plaster in cement mortar (1:3) in two coats. Waterproofing compound of
              approved make and quality shall be added to the cement mortar in
              proportions as specified by the manufacturer.
       6.     All external surfaces above ground level shall have one coat of primer
              and two coats of waterproof cement based paint of approved quality and
              shade. A coat of silicone water repellent paint shall also be applied
              thereon.
       7.     Toilet areas, walls and ceilings, shall have one coat of primer and two
              coats of plastic emulsion paint.
       8.     Toilet floor slab shall be filled with brickbat coba (broken bricks in
              cement) and provided with waterproofing as per the specifications of an
              approved specialist waterproofing company.
       9.     The finished floor level in toilet areas shall be 25 mm below general



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Gujarat Mineral Development Corporation Limited




               finished floor level elsewhere in the building.
       10.     The flooring in all areas shall be of best quality of vitrified tiles placed in
               C.M.
       11.     Toilet areas shall have vitrified tiles placed in cement mortar and 2200
               mm high ceramic tile (size 200 mm x 200 mm x 6 mm thick) dado
               placed in cement mortar shall also be provided in these areas. In W.C.
               areas, the flooring and 2200 mm high dado shall be provided with 200
               mm x 200 mm x 6 mm thick coloured ceramic tiles.
       12.     The toilet facilities shall include at least :
               (i)      Water closet with colored porcelain European pan of approved
                        quality with flushing cistern of 10 liters capacity.
               (ii)     One no. Urinal of size 600 mm x 400 mm x 300 mm flat back
                        type in colored porcelain separated by a marble partition of size
                        780 mm x 300 mm.
               (iii)    One no. wash basin of size 510 mm x 400 mm in colored
                        porcelain with inlet, outlet and overflow arrangements.
               (iv)     One no. mirror of size 400 mm x 600 mm wall mounted type
                        fitted over wash basins.
               (v)      One no. plastic liquid soap bottles
               (vi)     2 Nos. chromium plated brass towel rails minimum 750 mm
                        long.
               (vii)    All stopcocks, valves and pillar cocks shall be heavy-duty
                        chromium plated brass.
               (viii)   All fittings such as `P’ or `S’ traps, floor traps, pipes, down take
                        pipes etc.
               (ix)     The sewage from toilet blocks shall be led to a septic tank.
               (x)      Pipes to be 'C' class concealed plumbing.
               (xi)     External connection and plumbing for supply of clean water to
                        individual buildings is not included in the scope of the present
                        contract.
       13.     All staircases shall have 25 mm thick chequered mosaic tiles for treads
               and 25 mm thick plain mosaic tiles of approved shade for risers set in
               cement mortar or lime mortar to give an overall thickness of 50 mm.
               Stairways shall be provided to permit access between different levels
               within buildings. All roof tops and overhead tanks shall be made
               accessible with ladder provision. Vertical ladders fitted with landing
               point extensions will be permitted where considered appropriate by the
               GMDC to access areas not frequently visited.
       14.     All floor cut-outs and cable ducts, etc. shall be covered with pre-cast
               concrete covers in outdoor areas and mild steel chequered plates of 10
               mm thickness in indoor areas. All uncovered openings shall be protected



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               with M.S. hand railing of 32 NB (M).


       15.     All staircases shall be provided with 32 NB (M) galvanised M.S. pipe
               hand railing for protection.
16.    The reinforced concrete roofs shall be made waterproof by providing china
       mosaic using white glazed tile pieces fixed on OP cement and joints filled with
       white cement. The finished roof surface shall have adequate slope to drain
       quickly the rainwater to R.W down take inlet points.
       17.    For roofing drainage, PVC pipes with rubber ring joints shall be
              provided as rainwater down takes, also bell mouth and aluminium.
              grating at top shall be provided. For roof areas up to 100 square meter
              minimum two nos. 100 mm diameter down take pipes shall be provided.
              For every additional area of 100 square meter or part thereof, at least one
              number of 100 mm diameters down take pipe shall be provided.
       18.     Top surfaces of chajjas and canopies shall be made waterproof by
               providing a screed layer of adequate slope or application of an approved
               roof membrane and sloped to drain the rainwater. Chajjas, canopies and
               roof projections shall have drip moulds.
      19.      Building plinth shall be minimum 1000 mm above average finished
               ground level around building.
       20.     All doors, windows, rolling shutters shall have lintels above. Chhajja
               protection having projection length of 0.45 meter to lintels on external
               walls shall be such as to prevent the rainwater splashing into the
               building.
       21.     All windows and ventilators shall have 25 mm thick marble stone sills
               bedded in cement mortar (1:3)
       22.     The design of buildings shall be suitable for the climatic conditions
               existing on site. Buildings shall as far as is possible permit the entry of
               natural light.
       23.     The kitchen platform of 60 cm wide, 2 M long marbo granite stone shall
               be provided.
       24.     Ceramic vitrified flooring tiles shall be fixed in WC at bottom & dedo &
               in dedo over platform of kitchen.
       25.     Kitchen sink of vitreous china of size 600 x 450 x 150 mm shall be
               provided.
       26.     For water supply arrangement PVC tank of minimum 5000 Litres
               capacity shall be constructed over stair cabin.
       27.     G.I. ‘B’ class pipes shall be used for inlet connection to RCC tank &
               outlet connection to kitchen, bath, WC, etc.
       28.     Nahni trap shall be provided in bath & sink.
       29.     Sanitary arrangement shall be provided by providing PVC pipe, with
               rubber ring joints, cowl vent, gully trap, chamber, septic tank, soak pit,



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Gujarat Mineral Development Corporation Limited




               etc.
       30.     Septic tank & soak pit shall be constructed suitable to carry 50 persons’
               usage.

3.1.2. Approach Road/ Internal Road.

       The road shall be constructed inside the WTP area and paralleled to the pipe
       route of Rising main and Transmission Main to connect with the existing
       Asphalt main road. It shall be as follows:

       i)      The carpet width of the road shall be minimum 3.5m.
       ii)     The total width of the road with the side shoulders shall be 5.5m
       iii)    The Sub-Base shall be of Granular Sub-Base (GSB) and shall be laid in a
               single layer of 285mm thickness. The Wet Mix Macadam (WMM) shall
               be laid in two layers of 85mm and 165mm thickness respectively.
       iv)     The Base Course shall be of dense graded Bituminous Macadam (DBM)
               and it shall be laid as single layer of 60mm thickness.
       v)      The Wearing Course of single layer of 25mm thickness Bituminous
               Concrete (BC) shall be laid.
       vi)     The side shoulder on either side of the road shall be constructed with a
               layer of 350mm thick Murrum sealed with a top layer of 100mm thick
               Mix Macadam (WMM).
       vii)    Arrangement for diverting the traffic shall be made while the work is
               under progress.

       The entire work shall be carried out as per detailed drawing & as directed by the
       Engineer-In-Charge.

3.1.3. Area grading & gardening

       The FGL of WTP area shall be decided by GMDC or by the Consultant
       appointed for this work. The earth filling shall be done if necessary & surplus
       earth if any shall be removed from WTP compound. The filling shall be well
       compacted, consolidated after watering.

       Garden shall be developed in the space around compound wall & road side for
       better appearance / environment & same shall be maintained during O & M
       period also.




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5.0    GALVANISED CHAIN LINK FENCING WITH COMPOUND GATES:

       Galvanized wire (12 gauges thick) chain link fencing of 50 mm x 50 mm
       opening, and 2.0 meter height, above 0.23 meter thick and 0.30 meter height
       from finished ground level B.B. masonry and 10 cm thick RCC coping above
       masonry shall be provided to the entire area required for works included in the
       scope of this tender. The masonry shall be constructed on 15 cm thick cement
       concrete of 1:3:6 proportions, total height of masonry shall be 0.60 meter above
       foundation. Above masonry 10 cm thick coping of reinforced cement concrete
       of 1:2:4 proportions shall be provided. Cement plaster in CM 1:3, of 12mm
       thickness on both sides of wall shall be provided. The Mild steel angles of
       65x65x6mm size and 3.0 m height at 2.5 meters centre to centre shall be used.
       MS flats of 25mmx3mm size, 2.0 meters height and minimum 5 nut and bolts of
       6mm diameter shall be used for fixing chain link fencing with vertical angles.
       MS gates of 5mx2.5m and wicket gate of 1mx 2.5m shall be provided. MS
       angles shall be of total 3.0 m height, 2.5m above finished G.L. and 0.50 m
       below G L, which shall be embedded in CC block in M 150 of 0.45x0.45x0.45
       m size. Angle post, compound & wicket gates shall be painted with best quality
       of approved paint. Three RCC columns of 0.3x0.3x3.0 m size, on foundation
       and RCC footing of approved design, in CC M 200 shall be provided for
       erecting the gates. Weight of the gates 40 KG per square meter, and shall be of
       approved design.

6.0    General

       (i) The tenderer shall have to furnish the details regarding the electrical
           consumption of each unit and chemical consumption of the plant.

       (ii) The tenderer shall have to furnish bar chart showing all civil, mechanical,
            electrical, instrumentation activities with physical and financial
            achievement.

       (iii)Tenderer will furnish his own layout, P & I Diagram, Site Organization
            Chart, Construction Equipment List etc.

       (iv)      Spares:

              The Bidder will supply spares as per the list indicated and these spares shall
              be used by the Bidder during five years of O & M of the plant. The spares
              used during O & M will have to be procured by the agency immediately
              during O & M period. The spares as per list after five years of O & M shall
              be handed over to GMDC. However, extra spares for any of Mechanical /
              Electrical / Instrument items if required during O & M period shall be
              procured by the Bidder at his cost and GMDC will not pay for the same.


       (v) A complete tools box with spanners, screws drivers etc. correctly meant
           for the mechanical and electrical and instrumentation equipments of the


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           plant should be supplied under this contract and the cost for the same
           should be included in the bid.

       (vi) Painting;

           After the plant has been erected completely the whole iron and steel work
           piping etc. except where directed otherwise must be painted with two
           coats of approved quality of epoxy paint after scrapping of all the old
           paint which has been damaged during transit to store or erection. All the
           outer side concrete/plastered surface shall be colored with approved shed of
           snowcem and inside surface shall be colored with approved shed of
           distemper/oil paint.

       (vii)Clearing up

           Upon the completion of the work the contractor must remove all oil and
           grease marks or other stains from the floors walls of the building and render
           the whole plant thoroughly clean and orderly.

           Also all surplus excavated stuff, unused building materials etc. shall be
           removed from the site of work and the work site left neat and clean as
           directed.




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                                 SECTION -III

     TECHNICAL SPECIFICATIONS
                                     CIVIL WORKS
                                    EARTH WORKS
                                        CONCRETE
                        STRUCTURE/ STEEL/ WORKS
                          PIPELEINE & PIPEWORK
                            PUMPING MACHINARY
                       OPERATION & MAITANANCE




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                     1.0     CIVIL AND BUILDING WORKS


1.1    Design Submissions

       Complete detailed design calculations of foundations and superstructure together with
       general arrangement drawings and explanatory sketches shall be submitted to GM.
       Separate calculations for foundations or superstructures submitted independent of each
       other shall be deemed to be incomplete and will not be accepted by GM.

       The design considerations described hereunder establish the minimum basic
       requirements of plain and reinforced concrete structures, masonry structures and
       structural steel works. However, any particular structure shall be designed for the
       satisfactory performance of the functions for which the same is being constructed. The
       Contractor shall also take care to check the stability of partly completed structures.

1.2    Design Standards

       All designs shall be based on the latest Indian Standard (I.S.) Specifications or Codes of
       Practice. The design standards adopted shall follow the best modern engineering practice
       in the field based on any other international standard or specialist literature subject to
       such standard reference or extract of such literature in the English language being
       supplied to and approved by GM. In case of any variation or contradiction between the
       provisions of the I.S. Standards or Codes and the specifications given along with the
       submitted tender document, the provision given in this Specification shall be followed.

       All reinforced concrete structural design shall generally conform to the following
       publications of the Indian Standards Institution:

       I.S. 456       Code of Practice for plain and reinforced concrete
       I.S. 875       Code of Practice for design loads for buildings and structures
                      (Part 1 to 5)
       I.S. 3370      Code of Practice for concrete structures for the storage of
                      Liquids (Part I to IV)
       I.S. 1893      Criteria for earthquake resistant design of structures
       I.S. 2974      Code of Practice for design and construction of machine
                      Foundations (Part 1 to 4)

       All structural steel design shall generally conform to the following publications of the
       Indian Standards Institution:

        I.S. 800:     Code of Practice for general construction in steel
        I.S. 806:     Code of Practice for use of steel tubes in general building construction

1.3    Design Life

       The design life of all structures and buildings shall be 60 years.




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1.4       Design Loading

          All buildings and structures shall be designed to resist the worst combination of the
          following loads / stresses under test and working conditions; these include dead load,
          live load, wind load, seismic load, stresses due to temperature changes, shrinkage and
          creep in materials, dynamic loads, impact load and other specific loads.

1.4.1     Dead Load

          This shall comprise all permanent construction including walls, floors, roofs, partitions,
          stairways, fixed service equipment and other items of machinery.

          The following minimum loads shall be considered in design of structures:

        Weight of water                                         9.81 kN/m3
        Weight of soil (irrespective of strata                  20.00 kN/m3
        available at site and type of soil used for
        filling etc). However, for checking
        stability against uplift, actual weight of
        soil as determined by field test shall be
        considered.
        Weight of plain concrete                                24.00 kN/m3

        Weight of reinforced concrete                           25.00 kN/m3,

        Weight of plaster to RCC surface                        18.00 N/m2      per mm
                                                                thickness

1.4.2     Live Load

          Live loads shall be in general as per I.S. 875. However, the following minimum loads
          shall be considered in the design of structures:
          i)      Live load on roofs (accessible)            :       1.50 kN/m2
                  (Non-accessible)                           :      0.75 kN/m2

1.4.3     Wind Load

          Wind loads shall be as per I.S. 875.

1.4.4     Earthquake Load

          This shall be computed as per I.S. 1893 considering earthquake 2002. An importance
          factor appropriate to the type of structure shall be considered for design of all the
          structures. As per relevant latest IS

1.4.5     Dynamic Load

          Dynamic loads due to working of items such as pumps, blowers, compressors, switch
          gears, traveling cranes, etc. shall be considered in the design of structures as per
          manufacturer’s data.

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1.5    Joints

       Movement joints such as expansion joints, complete contraction joints, partial
       contraction joints and sliding joints shall be designed to suit the structure. However,
       contraction joints shall be provided at specified locations spaced not more than 7.5 m in
       both right angle directions for all walls and rafts.
       Expansion joints of suitable gap at suitable intervals not more than 30 m shall be
       provided in all walls, floors and roof slabs of water retaining structures.
       Construction joints shall be provided at right angles to the general direction of the
       member. The locations of construction joints shall be decided on convenience of
       construction. To avoid segregation of concrete in walls, horizontal construction joints
       are normally to be provided at every 2-m height. PVC water-stops of 150 mm width
       shall be used for walls and 230 mm width for base slabs.
       Expansion joints for non-liquid retaining structures shall be provided as per IS 3414.

1.6    Design Conditions for Underground or Partly Underground Liquid Retaining
       Structures

       All underground or partly underground liquid containing structures shall be designed for
       the following conditions:

       (i)      Liquid depth to be considered up to full height of wall and no relief due to soil
                pressure from other side to be considered.
       (ii)     Structure empty condition (i.e., empty of liquid, any material, etc.): full earth
                pressure with saturation and surcharge pressure wherever applicable, to be
                considered.
       (iii)    Structures shall be designed for uplift in empty conditions with no live load with
                the appropriate water table.
       (iv)     Underground or partially underground structures shall also be checked against
                stresses developed due to any combination of full and empty compartments with
                appropriate ground/uplift pressures from below to base slab. A minimum factor
                of 1.1 to 1.2 shall be ensured against uplift or floatation.
       (v)      For tender evaluation, the Soil bearing capacity is to be considered 10 MT/Sq .mt
                for sump but on award of the work, contractor shall have to carry out detailed
                soil analysis & based on actual S.B.C. structure shall have to be designed.

1.7    Foundations

       (i)      The minimum depth of foundations for all structures, equipment, buildings and
                frame foundations and load bearing walls shall be as per IS 1904.
       (ii)     Maximum safe bearing capacity of soil strata shall be taken as indicated in geo-
                technical reports.
       (iii)    Care shall be taken to avoid the foundations of adjacent buildings or structure
                foundations, either existing or not within the scope of this Contract. Suitable
                adjustments in depth, location and sizes may have to be made depending on site
                conditions. No extra claims for such adjustments shall be accepted by CGM.
       (iv)     Special attention is drawn to danger of uplift being caused by the ground water
                table. All underground structural slab wherever applicable shall be designed for
                uplift forces due to ground water pressure.
       (v)      Where there is level difference between the natural ground level & the


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       foundations of structure or floor slabs, this difference shall be filled up in the following
       ways:
       • In case of non-liquid retaining structures the natural top soil shall be removed till a
          firm strata is reached (minimum depth of soil removed shall be 500 mm.) and the
          level difference shall be made up by compacted backfill as per specifications.
          However the thickness of each layer shall not exceed 150 mm. The area of
          backfilling for floor slabs shall be confined to prevent soil from slipping out during
          compaction. The safe bearing capacity of this well compacted backfilled soil shall
          not exceed 100 kN/sq.m.
       • In case of liquid retaining structures, the natural top soil shall be removed as
          described above and the level difference shall be made up with Plain Cement
          Concrete (1:5:10)

1.8    Design Requirements

       The following are the design requirements for all reinforced or plain concrete structures:

       a)      All binding and leveling concrete shall be a minimum 100 mm thick in concrete
               grade 1:3:6.
       b)      All structural reinforced concrete for water retaining structures shall be of a
               minimum M30 grade with a maximum 20 mm aggregate size for footings and
               base slabs and with a maximum 20 mm aggregate size for all other structural
               members. For non water retaining structures the concrete shall be of M 20 grade.
               The structures shall have to be designed as per IS: 3370 (Part I-IV).
       c)      The reinforced concrete for water retaining structures shall have a minimum
               cement content of 360 kg/m3 with a maximum 20 mm size aggregate and 330
               kg/m3 with a maximum 40 mm size aggregate as per IS : 3370 (Part I-IV).
       d)      The minimum reinforcement for water retaining structures in each direction
               should be 0.35% of cross section. The minimum clear cover to all reinforcement
               including stirrups and links shall be 50 mm for all water retaining structures.
       e)      Any structure or pipeline crossing below roads shall be designed matching
               classification of road (anything from Class A to AA of IRC loading )
       f)      Approved quality water proofing compound (chloride free) shall be added during
               concreting of all liquid containing structure in the proportions specified by
               manufacturer or 2 % by weight of cement whichever is higher.
               •       The wall and floor panels shall be poured in sequential order with a
                       minimum time gap of 4 days.

               The following minimum thickness shall be used for different reinforced concrete
               members, irrespective of design thickness:
                    (i) Walls for liquid retaining structures         : 150 mm
                    (ii) Roof slabs for liquid retaining structures :   100 mm
                          (other than flat slabs)
                    (iii) Bottom slabs for liquid retaining structures: 150 mm

1.9    Materials in General

       The term "materials" shall mean all materials, goods and articles of every kind whether
       RAW, processed or manufactured and equipment and plant of every kind to be supplied
       by the Contractor for incorporation in the Works.

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       Except as may be otherwise specified for particular parts of the works the provision of
       clauses in "Materials and Workmanship" shall apply to materials and workmanship for
       any part of the works.

       All materials shall be new and of the kinds and qualities described in the Contract and
       shall be at least equal to approved samples.

       As soon as practicable after receiving the order to commence the Works, the Contractor
       shall inform GM of the names of the suppliers from whom he proposes to obtain any
       materials but he shall not place any order without the approval of GM which may be
       withheld until samples have been submitted and satisfactorily tested. The Contractor
       shall thereafter keep GM informed of orders for and delivery dates of all materials.

       Materials shall be transported, handled and stored in such a manner as to prevent
       deterioration, damage or contamination failing which such damaged materials will be
       rejected and shall not be used on any part of the Works under this contract.

1.10   Samples and Tests of Materials

       The Contractor shall submit samples of such materials as may be required by GM and
       shall carry out the specified tests directed by GM at the Site, at the supplier's premises or
       at a laboratory approved by GM. GM may appoint separate third party inspection for the
       material testing to ensure the quality of the work. The Contractor shall replace the
       defective material as an outcome of these tests.

       Samples shall be submitted and tests carried out sufficiently early to enable further
       samples to be submitted and tested if required by GM.

       The Contractor shall give GM seven days' notice in writing of the date on which any of
       the materials will be ready for testing or inspection at the supplier's premises or at a
       laboratory approved by GM. Representative of GM shall attend the test at the appointed
       place within seven days of the said date on which the materials are expected to be ready
       for testing or inspection according to the Contractor, failing which the test may proceed
       in his absence unless instructed by GM to carry out such a test on a mutually agreed date
       in his presence. The Contractor shall in any case submit to GM’s Representative within
       seven days of every test such number of certified copies (minimum six) of the test
       results as GM may require.

       Approval by GM as to the placing of orders for materials or as to samples or tests shall
       not prejudice any of GM's powers under the Contract.
       The provisions of this clause shall also apply fully to materials supplied under any
       nominated sub-contract.

1.11   Standards

       Materials and workmanship shall comply with the relevant Indian Standards (with
       amendments) current on the date of submission of the tender. All the governing items,
       materials, goods and equipments shall bear ISO-9001-2000 certification.
       Where the relevant standard provides for the furnishing of a certificate to GM, at his

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       request, stating that the materials supplied comply in all respects with the standard, the
       Contractor shall obtain the certificate and forward it to GM.

       The specifications, standards and codes listed below are considered to be part of this Bid
       specification. All standards, specifications, codes of practices referred to herein shall be
       the latest editions including all applicable official amendments and revisions.

       In case of discrepancy between the Bid Specification and the Standards referred to
       herein, the Bid Specification shall govern.

       a)      Materials

               IS : 383       Specification for coarse and fine aggregates from
                              natural sources for concrete
               IS : 432       Specification for mild steel and medium tensile steel
                              bars and hard drawn steel wire for concrete
                              reinforcement (Parts 1 & 2 )
               IS : 458       Specification for precast concrete pipes(with and
                              without reinforcement)
               IS : 650       Specification for standard sand for testing of cement
               IS : 808       Specification for dimensions for hot rolled steel beam, column,
                              channel and angle sections
               IS : 814       Specification for covered electrodes for manual metal arc welding
                              of Carbon and Carbon Manganese steel
               IS : 1489      Specification for Portland pozzolana cement
                              (Parts 1&2)
               IS : 1566      Specification for hard drawn steel wire fabric for concrete
                              reinforcement
               IS :1580       Specification for bituminous compounds for water proofing and
                              caulking purposes
               IS : 1786      Specification for high strength deformed steel bars and wires for
                              concrete reinforcement
               IS : 1852      Specification for rolling and cutting tolerances for hot rolled steel
                              products
               IS : 1977      Specification for structural steel (ordinary quality)
               IS : 2062      Specification for steel for general structural purposes
               IS : 2645      Specification for integral cement water proofing compounds
               IS : 2750      Specification for steel scaffoldings
               IS : 4350      Specification for concrete porous pipes for under drainage
               IS : 10262     Recommended guidelines for concrete mix design
               IS : 12269     Specification for 53 grade ordinary Portland cement
       b)      Tests
               IS : 516       Method of test for strength of concrete
               IS : 1182      Recommended practice for radiographic examination of fusion
                              welded butt joints in steel plates
               IS : 1199      Methods of sampling and analysis of concrete
               IS : 2386      Methods of test for aggregates for concrete(Parts 1 to 8)
               IS : 2720      Methods of test for soils (Parts 1 to 39)
               IS : 3025      Methods for sampling and test (physical and chemical) for water
                              and wastewater (Parts 1 to 44)

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               IS : 3613    Acceptance tests for wire flux combination for submerged arc
                            welding
               IS : 7318    Approval tests for welders when welding procedure approval is
                            not required (Parts 1 and 2)
       c)      Code of Practice

               IS : 456       Code of practice for plain and reinforced concrete
               IS : 783       Code of practice for laying of concrete pipes
               IS : 800       Code of practice for general construction in steel
               IS : 816       Code of practice for use of metal arc welding for general
                              construction in mild steel
               IS : 817       Code of practice for training and testing of metal arc welders
               IS : 875       Code of practice for design loads (other than earthquake) for
                              building structures(Parts 1 to 5)
               IS : 1172      Code of practice for basic requirements for water supply, drainage
                              and sanitation
               IS : 1477      Code of practice for painting of ferrous metals in buildings (Parts
                              1 & 2)
               IS : 1893      Criteria for earthquake resistant design of structures
               IS : 2395      Code of practice for painting, concrete, masonry and plaster
                              surfaces (Parts1 & 2)
               IS : 2502      Code of practice for bending and fixing of bars for concrete
                              reinforcement
               IS : 2595      Code of practice for radiographic testing
               IS : 2751      Recommended practice for welding of mild steel plain and
                              deformed bars for reinforced construction
               IS : 3370      Code of practice for concrete structures for the storage of liquids
                              (Parts 1 to 4)
               IS : 3558      Code of practice for use of immersion vibrators for consolidating
                              concrete
               IS : 3935       Code of practice for composite construction
               IS : 4014      Code of practice for steel tubular scaffolding (Parts 1 & 2)
               IS : 5822      Code of practice for laying of welded steel pipes for water supply
               IS : 7215      Tolerances for fabrication of steel structures
               IS : 9595      Recommendations for metal arc welding of carbon and carbon
                              manganese steels

       d)      Construction Safety
               IS : 3696    Safety code for scaffolds and ladder (Parts 1 & 2)
               IS : 3764    Safety code for Excavation work
               IS : 7205    Safety code for erection of structural steel work

1.12   Orientation

       The works shall be laid out within the confines of the Site in order to interface to the
       existing infrastructure of roadways and inlet and outlet pipe work Underground services
       requiring to be relocated in order to accommodate the proposed site layout shall, with
       the approval of GM, be relocated by the Contractor.




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1.13   Valve Chambers

              All valve chambers are to be of an adequate size to facilitate maintenance and
       operation. The base slab of valve chambers shall slope towards a sump pit from which
       water can be pumped to keep the chamber dry. All valve chambers shall be constructed
       in M15 grade reinforced concrete. Chambers shall have removable cast iron / reinforced
       concrete covers, as appropriate, approach ladders and valve supports.




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                                  2.0      EARTHWORKS


2.1    Applicable Codes

The following Indian Standard Codes, unless otherwise specified herein, shall be applicable. In
all cases, the latest revision of the codes shall be referred to.

a)     IS 783 - 1985          -         Code of practice for laying of concrete pipes.

b)     IS 3764 - 1992         -         Excavation work - Code of Safety .

c)     IS 2720                -         Methods of test for soils:

      (Part-1)   - 1983       -         Part 1 Preparation of dry soil samples for various tests.
      (Part-2)   - 1986       -         Part 2 Determination of Water Content.
      (Part-4)   - 1985       -         Part 4 Grain size analysis.
      (Part-5)   - 1985       -         Part 5 Determination of liquid and plastic limit.
      (Part-7)   - 1980       -         Part 7 Determination of water content - dry density
                                        relation using light compaction.
      (Part-9) - 1971         -         Part 9 Determination of dry density - moisture content by
                                        constant weight of soil method.
      (Part-14) – 1983        -         Part 14 Determination of density index (relative density)
                                        of cohesion less soils.
      (Part-22) – 1978        -         Part 22 Determination of organic matter.
      (Part-26) – 1987        -         Part 26 Determination of pH Value.
      (Part-27) – 1987        -         Part 27 Determination of total soluble sulphate.
      (Part-28) – 1974        -         Part 28 Determination of dry density of soils in place, by
                                        the sand replacement method.
      (Part-33) – 1971        -         Part 33 Determination of the density in place by the ring
                                        and water replacement method.
      (Part-34) – 1972        -         Part 34 Determination of density of soil in place by rubber
                                        balloon method.
      (Part-38) – 1976        -         Part 38 Compaction control test (Hilf Method).


2.2    General

       The Contractor shall furnish all tools, plant, instruments, qualified supervisory
       personnel, labour, materials, any temporary works, consumables, any and everything
       necessary, whether or not such items are specifically stated herein for completion of the
       work in accordance with the Employer’s Requirements.
               The Contractor shall survey the site before excavation and set out all lines and
       establish levels for various works such as grading, basement, foundations, plinth filling,
       roads, drains, cable trenches, pipelines etc. Such survey shall be carried out by taking
       accurate cross sections of the area perpendicular to established reference/grid lines at 8m
       intervals or nearer, if necessary, based on ground profile and thereafter properly
       recorded.


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       The excavation shall be carried out to correct lines and levels. This shall also include,
       where required, proper shoring to maintain excavations and also the furnishing, erecting
       and maintaining of substantial barricades around excavated areas and warning lamps at
       night.

       Excavated material shall be dumped in regular heaps, bunds, riprap with regular slopes
       within the lead specified and leveling the same so as to provide natural drainage.
       Rock/soil excavated shall be stacked properly as approved by the Employer’s
       Representative. As a rule, all softer material shall be laid along the center of heaps, the
       harder and more weather resisting materials forming the casing on the sides and the top.
       Rock shall be stacked separately.
       Topsoil shall be stock piled separately for later re-use.

2.3    Clearing

       The area to be excavated / filled shall be cleared of fences, trees, plants, logs, stumps,
       bush, vegetation, rubbish, slush, etc. and other objectionable matter. If any roots or
       stumps of trees are encountered during excavation, they shall also be removed. The
       material so removed shall be disposed off as approved by the Employer’s
       Representative. Where earth fill is intended, the area shall be stripped of all loose/ soft
       patches, top soil containing objectionable matter/ materials before fill commences.

2.4    Excavation

       All excavation work shall be carried out by mechanical equipment unless, in the opinion
       of Employer’s Representative, the work involved requires it to be carried out by manual
       methods.

       Excavation for permanent work shall be taken out to such widths, lengths, depths and
       profiles as are shown on the drawings provided by the Contractor or such other lines and
       grades as may be agreed with the Employer’s Representative. Rough excavation shall be
       carried out to a depth of 150mm above the final level. The balance shall be excavated
       with special care.

       Soft pockets shall be removed below the final level and extra excavation filled up with
       lean concrete as approved by the Employer’s Representative. The final excavation
       should be carried out just prior to laying the blinding course.

       To facilitate the permanent works the Contractor may excavate, and also backfill later,
       outside the lines shown on the drawings provided by the Contractor as agreed with the
       Employer’s Representative. Should any excavation be taken below the specified
       elevations, the Contractor shall fill it up with concrete of the same class as in the
       foundation resting thereon, up to the required elevation at no cost to the Employer.

       All excavations shall be to the minimum dimensions required for safety and ease of
       working. Prior approval of the Employer’s Representative shall be obtained by the
       Contractor in each individual case, for the method proposed for the excavation,
       including dimensions, side slopes, dewatering, disposal, etc. This approval shall not in
       any way relieve the Contractor of his responsibility for any consequent loss or damage.
       The excavation must be carried out in the most expeditious and efficient manner. Side

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        slopes shall be as steep as will stand safely for the actual soil conditions encountered.
        Every precaution shall be taken to prevent slips. Should slips occur, the slipped material
        shall be removed and the slope dressed to a modified stable slope.

2.5     Rock

2.5.1   General

        ‘Rock’ means a natural aggregate of mineral crystals which for its excavation would
        normally require the use of heavy pneumatic/hydraulic breaker and/or cutting equipment
        or explosives. the term shall exclude any material that can be removed by ordinary
        excavating machinery and which in any individual mass has a volume not exceeding
        1m3 or 0.25m3 where the net width of excavation is less than 2 m. Ordinary excavating
        machinery means a hydraulic back hoe with rated output of 50 kW or less.

        Before classification of material as rock the Contractor shall demonstrate to the
        satisfaction of the Employer’s Representative his inability to excavate it without resort
        to heavy percussion tools complete with rock bits, hydraulic wedges or blasting.
        Excavation by the use of explosive will not normally be permitted except for pipeline.

        Material shall not be classified as rock unless the Employer’s Representative has agreed
        to such classification on the basis of such a demonstration before its excavation.
        Excavations where rock has been encountered and classified as such shall not be
        backfilled before examination of the excavated faces by the Employer’s Representative
        to enable the extent of the rock excavation to be determined.

2.5.2   Excavation by the Use of Explosives

        Unless otherwise stated herein, I.S. Specification “IS:4081: Safety Code for Blasting and
        related Drilling Operations” shall be followed. As far as possible all blasting shall be
        completed prior to commencement of construction. At all stages of excavation,
        precautions shall be taken to preserve the rock below and beyond the lines specified for
        the excavation, in the soundest possible condition. The quantity and strength of
        explosives used, shall be such as will neither damage nor crack the rock outside the
        limits of excavation. All precautions, as directed by Employer’s Representative, shall be
        taken during the blasting operations and care shall be taken that no damage is caused to
        adjoining buildings or structures as a result of blasting operations. In case of damage to
        permanent or temporary structures, Contractor shall repair the same to the satisfaction of
        Employer’s Representative at his cost. As excavation approaches its final lines and
        levels, the depth of the charge holes and amount of explosives used shall be
        progressively and suitably reduced.

        The contractor shall obtain a valid Blasting License from the authorities concerned. No
        explosive shall be brought near the work in excess of quantity required for a particular
        amount of firing to be done; and surplus left after filling the holes shall be removed to
        the magazine. The magazine shall be built as away as possible from the area to be
        blasted. Employer’s Representative’s prior approval shall be taken for the location
        proposed for the magazine.

        In no case shall blasting be allowed closer than 30 metres to any structure or to locations

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       where concrete has just been placed. In the latter case the concrete must be at least 7
       days old.

       For blasting operations, the following points shall be observed.
       i)     Contractor shall employ a competent and experienced supervisor and licensed
              blaster in-charge of each set of operation, who shall be held personally
              responsible to ensure that all safety regulations are carried out.

       ii)     Before any blasting is carried out, Contractor shall intimate Employer’s
               Representative and obtain his approval in writing for resorting to such
               operations. He shall intimate the hours of firing charges, the nature of explosive
               to be used and the precautions taken for ensuring safety.

       iii)    Contractor shall ensure that all workmen and the personnel at site are excluded
               from an area within 200 m radius from the firing point, at least 15 minutes before
               firing time by sounding warning whistle. The area shall also be given a warning
               by sounding a distinguishing whistle.

       iv)     The blasting of rock near any existing buildings, equipments or any other
               property shall be done under cover and Contractor has to make all such
               necessary muffling arrangements. Covering may preferably be done by MS
               plates with adequate dead weight over them. Blasting shall be done with small
               charges only and where directed by Employer’s Representative, a trench shall
               have to be cut by chiseling prior to the blasting operation, separating the area
               under blasting from the existing structures.

       v)      The firing shall be supervised by a Supervisor and not more than 6 (six) holes at
               a time shall be set off successively. If the blasts do not tally with the number
               fired, the misfired holes shall be carefully located after half an hour and when
               located, shall be exploded by drilling a fresh hole along the misfired hole (but
               not nearer than 600 mm from it) and by exploding a new charge.

       vi)     A wooden tamping rod with a flat end shall be used to push cartridges home and
               metal rod or hammer shall not be permitted. The charges shall be placed firmly
               into place and not rammed or pounded. After a hole is filled to the required
               depth, the balance of the hole shall be filled with stemming which may consist of
               sand or stone dust or similar inert material.

       vii)    Contractor shall preferably detonate the explosives electrically.

       viii)   The explosives shall be exploded by means of a primer which shall be fired by
               detonating a fuse instantaneous detonator (F.I.D) or other approved cables. The
               detonators with F.I.D. shall be connected by special nippers.

       ix)     In dry weather and normal dry excavation, ordinary low explosive gunpowder
               may be used. In damp rock, high explosive like gelatin with detonator and fuse
               wire may be used. Underwater or for excavation in rock with substantial
               accumulated seepage electric detonation shall be used.

       x)      Holes for charging explosives shall be drilled with pneumatic drills, the drilling

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               pattern being so planned that rock pieces after blasting will be suitable for
               handling without secondary blasting.

       xi)     When excavation has almost reached the desired level, hand trimming shall have
               to be done for dressing the surface to the desired level.

               Any rock excavation beyond an over break limit of 75 mm shall be filled up as
               instructed by Employer’s Representative, with concrete of strength not less than
               M10. Stopping in rock excavation shall be done by hand trimming.

       xii)    Contractor shall be responsible for any accident to workmen, public or
               Employer’s property due to blasting operations. Contractor shall also be
               responsible for strict observance of rules, laid by Inspector of explosives, or any
               other Authority duly constituted under the State and / or Union Government as
               applicable at the place of excavation.

2.6    Stripping Loose Rock

       All loose boulders, detached rocks partially and other loose material which might move
       therewith not directly in the excavation but so close to the area to be excavated as to be
       liable, in the opinion of Employer’s Representative, to fall or otherwise endanger the
       workmen, equipment, or the work shall be stripped off and removed from the area of the
       excavation. The method used shall be such as not to render unstable or unsafe the
       portion which was originally sound and safe.

       Any material not requiring removal in order to complete the permanent works, but
       which, in the opinion of Employer’s Representative, is likely to become loose or
       unstable later, shall also be promptly and satisfactorily removed.

2.7    Fill, Backfilling

       2.7.1 General

               All fill material shall be subject to the Employer’s Representative’s approval. If
               any material is rejected by Employer’s Representative, the Contractor shall
               remove the same forthwith from the site. Surplus fill material shall be
               deposited/disposed off as directed by Employer’s Representative after the fill
               work is completed.

               No earth fill shall commence until surface water discharges and streams have
               been properly intercepted or otherwise dealt with to the approval of the
               Employer’s Representative.

       2.7.2   Material

               To the extent available, selected surplus spoil from excavations shall be used as
               backfill. Backfill material shall be free from lumps, organic or other foreign
               material. All lumps of earth shall be broken or removed. Where excavated
               material is mostly rock, the boulders shall be broken into pieces not larger than
               150 mm size, mixed with properly graded fine material consisting of murum or

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               earth to fill the voids and the mixture used for filling.

               If fill material is required to be imported, the Contractor shall make
               arrangements to bring such material from outside borrow pits. The material and
               source shall be subject to the prior approval of the Employer’s Representative.
               The approved borrow pit areas shall be cleared of all bushes, roots of trees,
               plants, rubbish, etc. Top soil containing foreign material shall be removed. The
               materials so removed shall be disposed of as directed by Employer’s
               Representative. The Contractor shall provide the necessary access roads to
               borrow areas and maintain the same if such roads do not exist.

       2.7.3 Filling in pits and trenches around foundations of structures, walls, etc.

               As soon as the work in foundations has been accepted and measured, the spaces
               around the foundations, structures, pits, trenches, etc., shall be cleared of all
               debris, and filled with earth in layers not exceeding 15 cm, each layer being
               watered, rammed and properly consolidated, before the succeeding one is laid.
               Each layer shall be consolidated to the satisfaction of Employer’s
               Representative. Earth shall be rammed with approved mechanical compaction
               machines. Usually no manual compaction shall be allowed unless the
               Employer’s Representative is satisfied that in some cases manual compaction by
               tampers cannot be avoided. The final backfill surface shall be trimmed and
               leveled to a proper profile to the approval of the Employer’s Representative.


       2.7.4 Filling in Trenches

               Filling in trenches for pipes and drains shall be commenced as soon as the joints
               of pipe and drains have been tested and passed. The backfilling material shall be
               properly consolidated taking due care so that no damage is caused to the pipes.
               Where the trenches are excavated in soil, the filling from the bottom of the
               trench to the level of the centre line of the pipe shall be done by hand compaction
               with selected approved earth in layers not exceeding 8 cm; backfilling above the
               level of the centre line of the pipes shall be done with selected earth by hand
               compaction, or other approved by Engineer in charge.
               In case of excavation of trenches in rock, the filling upto a level 30 cm above the
               top of the pipe shall be done with fine materials such as earth, murum, etc. The
               filling up to the level of the centre line of the pipe shall be done by hand
               compaction in layers not exceeding 8 cm whereas the filling above the centre
               line of the pipe shall be done by hand compaction or approved means in layers
               not exceeding 15 cm. The filling from a level 30 cm above the top of the pipe to
               the top of the trench shall be done by hand or other approved mechanical
               methods with broken rock filling of size not exceeding 15 cm mixed with fine
               material as available to fill up the voids.
               Filling of the trenches shall be carried out simultaneously on both sides of the
               pipe to avoid unequal pressure on the pipe.
               Bedding of 15 cm of available sand bedding is to be carried out if needed.




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2.8    Timber Shoring

       Close timbering shall be done by completely covering the sides of the trenches and pits
       generally with short, upright members called 'polling boards'. These shall be of
       minimum 25 cm x 4 cm sections or as approved by the Employer’s Representative. The
       boards shall generally be placed in position vertically side by side without any gap on
       each side of the excavation and shall be secured by horizontal walling of strong wood at
       maximum 1.2 meter spacing, strutted with ballies or as approved by the Employer’s
       Representative. The length of the ballie struts shall depend on the width of the trench or
       pit. If the soil is very soft and loose, the boards shall be placed horizontally against each
       side of the excavation and supported by vertical walling, which in turn shall be suitably
       strutted. The lowest boards supporting the sides shall be taken into the ground and no
       portion of the vertical side of the trench or pit shall remain exposed, so as to render the
       earth liable to slip out.

       Timber shoring shall be 'close' or 'open' type, depending on the nature of soil and the
       depth of pit or trench. The type of timbering shall be as approved by the Employer’s
       Representative. It shall be the responsibility of the Contractor to take all necessary steps
       to prevent the sides of excavations, trenches, pits, etc. from collapsing.

       Timber shoring may also be required to keep the sides of excavations vertical to ensure
       safety of adjoining structures or to limit the slope of excavations, or due to space
       restrictions or for other reasons. Such shoring shall be carried out, except in an
       emergency, only under instructions from the Employer’s Representative.
       The withdrawal of the timber shall be done carefully to prevent the collapse of the pit or
       trench. It shall be started at one end and proceeded with, systematically to the other end.
       Concrete or masonry shall not be damaged during the removal of the timber.

       In the case of open timbering, the entire surface of the side of trench or pit is not
       required to be covered. The vertical boards of minimum 25 cm x 4 cm sections shall be
       spaced sufficiently apart to leave unsupported strips of maximum 50 cm average width.
       The detailed arrangement, sizes of the timber and the spacing shall be subject to the
       approval of the Employer’s Representative. In all other respects, the Employer’s
       Requirements for close timbering shall apply to open timbering.

       In case of large pits and open excavations, where shoring is required for securing safety
       of adjoining structures or for any other reasons and where the planking across sides of
       excavations/pits cannot be strutted against, suitable inclined struts supported on the
       excavated bed shall be provided. The load from such struts shall be suitably distributed
       on the bed to ensure no yielding of the strut.

2.9    Dewatering

       The Contractor shall ensure that the excavation and the structures are free from water
       during construction and shall take all necessary precautions and measures to exclude
       ground/rain water so as to enable the works to be carried out in reasonably dry
       conditions in accordance with the construction programme. Sumps made for dewatering
       must be kept clear of the excavations/trenches required for further work. The method of
       pumping shall be approved by Employer’s Representative, but in any case, the pumping

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       arrangement shall be such that there shall be no movement of subsoil or blowing in due
       to differential head of water during pumping. Pumping arrangements shall be adequate
       to ensure no delays in construction. The dewatering shall be continued for at least (7)
       seven days after the last pour of the concrete. The Contractor shall, however, ensure that
       no damage to the structure results on stopping of dewatering.

       The Contractor shall study the sub-soil conditions carefully and shall conduct any tests
       necessary at the site with the approval of the Employer’s Representative to test the
       permeability and drainage conditions of the sub-soil for excavation, concreting etc.,
       below ground level.

       The scheme for dewatering and disposal of water shall be approved by the Employer’s
       Representative. The Contractor shall suitably divert the water obtained from dewatering
       from such areas of site where a build up of water in the opinion of the Employer’s
       Representative obstructs the progress of the work, leads to unsanitary conditions by
       stagnation, retards the speed of construction and is detrimental to the safety of men,
       materials, structures and equipment.

       When there is a continuous inflow of water and the quantum of water to be handled is
       considered in the opinion of Employer’s Representative, to be large, a well point
       system- single stage or multistage, shall be adopted. The Contractor shall submit to the
       Employer’s Representative, details of his well point system including the stages, the
       spacing, number and diameter of well points, headers etc., and the number, capacity and
       location of pumps for approval.

2.10   Rain Water Drainage

       Grading in the vicinity of excavation shall be such as to exclude rain/ surface water
       draining into excavated areas. Excavation shall be kept clean of rain and such water as
       the Contractor may be using for his work by suitably pumping out the same. The scheme
       for pumping and discharge of such water shall be approved by the Employer’s
       Representative.




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                                        3. CONCRETE
3.0     Applicable Codes

3.0.1   Materials

         1)        IS.269       Specification for 33 grade ordinary Portland cement.

         2)        IS.455       Specification for portland slag cement.

         3)        IS.1489      Specification for portland-pozzolana cement (Part 1&2).

         4)        IS:8112      Specification for 43 grade ordinary portland cement.

         5)        IS:12269     Specification for 53 grade ordinary portland cement.

         6)        IS:12330     Specification for sulphate resisting portland cement.

         7)        IS:383       Specification for coarse and fine aggregates from natural
                                sources for concrete.

         8)        IS:432       Specification for mild steel and medium (tensile steel bars and
                                hard-drawn steel) wires for concrete reinforcement. (Part 1 & 2)

         9)        IS:1786      Specification for high strength deformed steel bars and wires
                                for concrete reinforcement.

        10)        IS:1566      Specification for hard-drawn steel wire fabric for concrete
                                reinforcement.

        11)        IS:9103      Specification for admixtures for concrete.

        12)        IS:2645      Specification for integral cement water- proofing compounds.

        13)        IS:4990      Specification for plywood for concrete shuttering work.


3.0.2   Material Testing

              1)      IS.4031   Methods of physical tests for hydraulic cement
                                (Parts 1 to 15)

              2)      IS:4032   Method chemical analysis of hydraulic cement.

              3)      IS:650    Specification for standard sand for testing of cement.

              4)      IS:2430   Methods for sampling of aggregates for concrete.

              5)      IS.2386   Methods of test for aggregates for concrete (Parts 1 to 8)


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           6)      IS:3025    Methods of sampling and test (physical and chemical) for
                              water used in industry.

           7)      IS:6925    Methods of test for determination of water soluble chlorides in
                              concrete admixtures.

3.0.3   Material Storage

           1)      IS:4082    Recommendations on stacking and storing of construction
                              materials at site.

3.1.4   Concrete Mix Design

           1)      IS:10262 Recommended guidelines for concrete mix design.

           2)      SP:23 (S&T)Handbook on Concrete Mixes

3.1.5   Concrete Testing


           1.      IS.1199            Method of sampling and analysis of concrete.

           2.      IS:516             Method of test for strength of concrete.

           3.      IS:9013            Method of making, curing and determining compressive
                                      strength of accelerated cured concrete test specimens.

           4.      IS:8142            Method of test for determining setting time of concrete
                                      by penetration resistance.

           5.      IS:9284            Method of test for abrasion resistance of concrete.

           6.      IS:2770            Methods of testing bond in reinforced concrete.


3.1.6   Equipments

                   1)   IS:1791       Specification for batch type concrete mixers.

                   2)   IS:2438       Specification for roller pan mixer.

                   3)   IS:4925       Specification for concrete batching and mixing plant.

                   4)   IS:5892       Specification for concrete transit mixer and agitator.

                   5)   IS:7242       Specification for concrete spreaders.

                   6)   IS:2505       General Requirements for concrete vibrators: Immersion
                                      type.
                   7)   IS:2506       General Requirements for screed board concrete vibrators.

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                   8)   IS:2514       Specification for concrete vibrating tables.

                   9)   IS:3366       Specification for pan vibrators.

                   10) IS:4656        Specification for form vibrators for concrete.

                   11) IS:11993       Code of practice for use of screed board concrete
                                      vibrators.

                   12) IS:7251        Specification for concrete finishers.

                   13) IS:2722        Specification for portable swing weigh batchers for
                                      concrete (single and double bucket type).

                   14) IS:2750        Specification for steel scaffoldings.


3.1.7   Codes Of Practice


                   1)   IS:456        Code of practice for plain and reinforced concrete.

                   2)   IS:457        Code of practice for general construction of plain and
                                      reinforced concrete for dams and other massive structures.

                   3)   IS:3370       Code of practice for concrete structures for storage of
                                      liquids (Parts 1 to 4)

                   4)   IS:3935       Code of practice for composite construction.

                   5)   IS:2204       Code of practice for construction of reinforced concrete
                                      shell roof.

                   6)   IS:2210       Criteria for the design of reinforced concrete shell
                                      structures and folded plates.

                   7)   IS:2502       Code of practice for bending and fixing of bars for
                                      concrete reinforcement.

                   8)   IS:5525       Recommendation for detailing of reinforcement in
                                      reinforced concrete works.

                   9)   IS:2751       Code of practice for welding of mild steel plain and
                                      deformed bars used for reinforced concrete construction.

                   10) IS:9417        Specification for welding cold worked bars for reinforced
                                      concrete construction.
                   11) IS:3558        Code of practice for use of immersion vibrators for
                                      consolidating concrete.

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                   12) IS:3414        Code of practice for design and installation of joints in
                                      buildings.

                   13) IS:4326        Code of practice for earthquake resistant design and
                                      construction of building.

                   14) IS:4014        Code of practice for steel tubular scaffolding (Parts 1 & 2)

                   15) IS:2571        Code of practice for laying insitu cement concrete
                                      flooring.

                   16) IS:7861        Code of practice for extreme weather concreting : Part 1
                                      Recommended practice for hot weather concreting.


3.1.8   Construction Safety

                   1)   IS.3696       Safety code for scaffolds and ladders. (Parts 1 &


                   2)   IS:7969       Safety code for handling and storage of building materials.

                   3)   IS:8989       Safety code for erection of concrete framed structures.


3.1     General

        The GM shall have the right at all times to inspect all operations including the sources of
        materials, procurement, layout and storage of materials, the concrete batching and
        mixing equipment and the quality control system. Such an inspection shall be arranged
        and the GM’s approval obtained, prior to starting of concrete work. This shall, however,
        not relieve the Contractor of any of his responsibilities. All materials which do not
        conform to the Specifications shall be rejected.

        Materials should be selected so that they can satisfy the design requirements of strength,
        serviceability, safety, durability and finish with due regards to the functional
        requirements and the environmental conditions to which the structure will be subjected.
        Materials complying with codes/standards shall generally be used. Other materials may
        be used after approval of the GM and after establishing their performance suitability
        based on previous data, experience or tests.




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3.2    Materials

       3.2.1 Cement

               Unless otherwise called for by the GM, cement shall be cement conforming to
               IS:269, IS:8112 or IS:12269.

               Where Portland pozzolana or slag cements are used, it shall be ensured that
               consistency of quality is maintained, there will be no adverse interactions
               between the materials and the finish specified is not marred.

               Only one type of cement shall be used in any one mix. The source of supply,
               type or brand of cement within the same structure or portion thereof shall not be
               changed without approval from the GM.

               Cement which is not used within 90 days from its date of manufacture shall be
               tested at a laboratory approved by the GM and until the results of such tests are
               found satisfactory, it shall not be used in any work.

       3.2.2 Aggregates (General)

               Aggregates shall consist of naturally occurring stones (crushed or uncrushed),
               gravel and sand. They shall be chemically inert, strong, hard, clean, durable
               against weathering, of limited porosity, free from dust/silt/ organic
               impurities/deleterious materials and conform to IS:383. Aggregates such as slag,
               crushed over burnt bricks, bloated clay ash, sintered fly ash and tiles shall not be
               used.

               Aggregates shall be washed and screened before use where necessary or if
               directed by the GM.

               Aggregates containing reactive materials shall be used only after tests
               conclusively prove that there will be no adverse effect on strength, durability and
               finish, including long term effects, on the concrete.

               The fineness modulus of sand shall neither be less than 2.2 nor more than 3.2.

               The maximum size of coarse aggregate shall be as stated on the drawings but in
               no case greater than 1/4 of the minimum thickness of the member.

               Plums 160 mm and above of a reasonable size may be used in mass concrete fill
               where directed. Plums shall not constitute more than 20% by volume of the
               concrete.

       3.2.3 Water

               Water used for both mixing and curing shall conform to IS:456. Potable waters
               are generally satisfactory. Water containing any excess of acid, alkali, sugar or
               salt shall not be used.



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       3.2.4 Reinforcement

               All reinforcement steel shall be tore steel conforming to relevant I.S. for water
               retaining structure with TMT - Fe-450 confirming to IS - 1786.

               All reinforcement shall be clean, free from pitting, oil, grease, paint, loose mill
               scales, rust, dirt, dust, or any other substance that will destroy or reduce bond.

       3.2.5 Admixtures

               Accelerating, retarding, water-reducing and air entraining admixtures shall
               conform to IS:9103 and integral water proofing admixtures to IS:2645.

               Admixtures may be used in concrete as per manufacturer's instructions only with
               the approval of the GM. An admixture's suitability and effectiveness shall be
               verified by trial mixes with the other materials used in the works. If two or more
               admixtures are to be used simultaneously in the same concrete mix, their
               interaction shall be checked and trial mixes done to ensure their compatibility.
               There should also be no increase in risk of corrosion of the reinforcement or
               other embedments.

               Calcium chloride shall not be used for accelerating set of the cement for any
               concrete containing reinforcement or embedded steel parts. When calcium
               chloride is permitted such as in mass concrete works, it shall be dissolved in
               water and added to the mixing water by an amount not exceeding 1.5 percent of
               the weight of the cement in each batch of concrete. The designed concrete mix
               shall be corrected accordingly.

               Wastage

               Wastage allowance for cement and steel shall be considered in the item rate and
               no extra payment shall become payable to the Contractor on any account.

3.3    Samples and Tests

       All materials used for the works shall be tested before use.

       Manufacturer's test certificate shall be furnished for each batch of cement/steel and when
       directed by the GM samples shall also be got tested by the Contractor in a laboratory
       approved by the GM at no extra cost to Employer. GM may appoint separate third party
       inspection for the material testing to ensure the quality of the work. The Contractor shall
       replace the defective material as an outcome of these tests.

       Sampling and testing shall be as per IS:2386 under the supervision of the GM.

       Water to be used shall be tested to comply with requirements of IS:456.

       The Contractor shall furnish manufacturer's test certificates and technical literature for
       the admixture proposed to be used. If directed, the admixture shall be got tested at an
       approved laboratory at no extra cost.

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3.4    Storing of Materials

       All materials shall be stored in a manner so as to prevent its deterioration and
       contamination which would preclude its use in the works. Requirements of IS:4082 shall
       be complied with.

       The Contractor will have to make his own arrangements for the storage of adequate
       quantity of cement. If such cement is not stored properly and has deteriorated, the
       material shall be rejected. Cement bags shall be stored in dry weatherproof shed with a
       raised floor, well away from the outer walls and insulated from the floor to avoid
       moisture from ground. Not more than 15 bags shall be stacked in any tier. Storage
       arrangement shall be approved by the GM. Storage under tarpaulins shall not be
       permitted. Each consignment of cement shall be stored separately and consumed in its
       order of receipt.

       Each size of coarse and fine aggregates shall be stacked separately and shall be protected
       from leaves and contamination with foreign material. The stacks shall be on hard, clean,
       free draining bases, draining away from the concrete mixing area.

       The Contractor shall make his own arrangements for storing water at site in tanks to
       prevent contamination.

       The reinforcement shall be stacked on top of timber sleepers to avoid contact with
       ground/water. Each type and size shall be stacked separately.

3.5    Concrete

       3.5.1 General

             Concrete grade shall be as designated on drawings. In concrete grade M15, M30
             etc. the number represents the specified characteristic compressive strength of
             150 mm cube at 28 days, expressed in N/sq.mm as per IS:456. Concrete in the
             works shall be "DESIGN MIX CONCRETE" or "NOMINAL MIX
             CONCRETE". All concrete works of grade M5, M7.5 and M10 shall be
             NOMINAL MIX CONCRETE whereas all other grades, M15 and above, shall
             be DESIGN MIX CONCRETE.
       3.5.2 Design Mix Concrete
             (a)     Mix Design & Testing

                      For Design Mix Concrete, the mix shall be designed according to
                      IS:10262 and SP:23 to provide the grade of concrete having the required
                      workability and characteristic strength not less than appropriate values
                      given in IS:456. The design mix shall be cohesive and does not segregate
                      and should result in a dense and durable concrete and also capable of
                      giving the finish as specified. For liquid retaining structures, the mix shall
                      also result in water tight concrete. The Contractor shall exercise great
                      care while designing the concrete mix and executing the works to achieve
                      the desired result.



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                      The minimum cement content for Design Mix Concrete shall be as per
                      Appendix-A of IS:456 or as given below, whichever is higher.

                    Grade of Concrete      Minimum Cement Content in
                                           Kg/Cu.m of Concrete
                    M15                    260
                    M20                    315
                    M25                    360

                      The minimum cement content stipulated above shall be adopted
                      irrespective of whether the Contractor achieves the desired strength with
                      less quantity of SRC cement. The Contractor’s quoted rates for concrete
                      shall provide for the above eventuality and nothing extra shall become
                      payable to the CONTRACTOR in this account. Even in the case where
                      the quantity of required is higher than that specified above to achieve
                      desired strength based on an approved mix design, nothing extra shall
                      become payable to the CONTACTOR.

                      It shall be the Contractor's sole responsibility to carry out the mix designs
                      at his own cost. He shall furnish to the GM at least 30 days before
                      concreting operations, a statement of proportions proposed to be used for
                      the various concrete mixes and the strength results obtained. The strength
                      requirements of the concrete mixes ascertained on 150 mm cubes as per
                      IS:516 shall comply with the requirements of IS:456.

            Grade of Minimum Compressive Specified                  Characteristic
            Concrete Strength N/sq.mm at 7 Compressive Strength N/sq.mm
                      days                      at 28 days
            M 15      10.0                      15.0
            M 20      13.5                      20.0
            M 25      17.0                      25.0
            M 30      20.0                      30.0
            M 35      23.5                      35.0
            M 40      27.0                      40.0
                    A range of slumps which shall generally be used for various types of
                    construction unless otherwise instructed by the CGM is given below :

            Structure/Member                               Slump in millimeters
                                                           Maximum       Minimum
            Reinforced foundation walls and footings
            Plain footings, caissons and substructure      75             25
            walls
            Slabs, Beams and reinforced walls              100            25
            Pump & miscellaneous Equipment                 75             25
            Foundations
            Building columns                               100            25
            Pavements                                      50             25
            Heavy mass construction                        50             25
                                                           50             25


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               (b)    Batching & Mixing of Concrete

                      Proportions of aggregates and OPC/PPC cement, as decided by the
                      concrete mix design, shall be by weight. These proportions shall be
                      maintained during subsequent concrete batching by means of weigh
                      batchers capable of controlling the weights within one percent of the
                      desired value.

                      Amount of water added shall be such as to produce dense concrete of
                      required consistency, specified strength and satisfactory workability and
                      shall be so adjusted to account for moisture content in the aggregates.
                      Water-ratio specified for use by the GM shall be maintained. Each time
                      the work stops, the mixer shall be cleaned out, and while recommencing,
                      the first batch shall have 10% additional to allow for sticking in the drum.

                      Arrangement should be made by the Contractor to have the cubes tested
                      in an approved laboratory or in field with prior consent of the CGM.
                      Sampling and testing of strength and workability of concrete shall be as
                      per IS: 1199, IS: 516 and IS: 456, IS 3370.

       3.5.3          Nominal Mix Concrete

               (a)    Mix Design & Testing

                      Mix design and preliminary tests are not necessary for Nominal Mix
                      Concrete. However works tests shall be carried out as per IS:456.
                      Proportions for Nominal Mix Concrete and w/c ratio may be adopted as
                      per Table 3 of IS:456. However it will be the Contractor's sole
                      responsibility to adopt appropriate nominal mix proportions to yield the
                      specified strength.

               (b)    Batching & Mixing of Concrete

                      Based on the adopted nominal mixes, aggregates shall be measured by
                      volume. However shall be by weight only.

3.6    Formwork

       Formwork shall be all inclusive and shall consist of but not be limited to shores,
       bracings, sides of footings, walls, beams and columns, bottom of slabs etc. including
       ties, anchors, hangers, inserts, false work, wedges etc.

       The design and engineering of the formwork as well as its construction shall be the
       responsibility of the Contractor. However, if so desired by the GM, the drawings and
       calculations for the design of the formwork shall be submitted to the GM for approval.

       Formwork shall be designed to fulfill the following requirements:

       (a)     Sufficiently rigid and tight to prevent loss of grout or mortar from the concrete at
               all stages and appropriate to the methods of placing and compacting.

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       (b)     Made of suitable materials.
       (c)     Capable of providing concrete of the correct shape and surface finish within the
               specified tolerance limits.
       (d)     Capable of withstanding without deflection the worst combination of self weight,
               reinforcement and concrete weight, all loads and dynamic effects arising from
               construction and compacting activities, wind and weather forces.
        (e)    Capable of easy striking out without shock, disturbance or damage to the
               concrete.
       (f)     Soffit forms capable of imparting a camber if required.
       (g)     Soffit forms and supports capable of being left in position if required.
       (h)     Capable of being cleaned and/or coated if necessary immediately prior to casting
               the concrete; design temporary openings where necessary for these purposes and
               to facilitate the preparation of construction joints.

       The formwork may be of timber, plywood, steel, plastic or concrete depending upon the
       type of finish specified. Sliding forms and slip form may be used with the approval of
       the GM. Timber for formwork shall be well seasoned, free from sap, shakes, loose
       knots, worm holes, warps and other surface defects. Joints between formwork and
       formwork and between formwork and structures shall be sufficiently tight to prevent
       loss of slurry from concrete, using seals if necessary.

       The faces of formwork coming in contact with concrete shall be cleaned and two coats
       of approved mould oil applied before fixing reinforcement. All rubbish, particularly
       chippings, shavings, sawdust, wire pieces dust etc. shall be removed from the interior of
       the forms before the concrete is placed. Where directed, cleaning of forms shall be done
       by blasting with a jet of compressed air at no extra cost.

       Forms intended for reuse shall be treated with care. Forms that have deteriorated shall
       not be used. Before reuse, all forms shall be thoroughly scraped, cleaned, nails removed,
       holes suitably plugged, joints repaired and warped lumber replaced to the satisfaction of
       the GM. The Contractor shall equip himself with enough shuttering to allow for wastage
       so as to complete the job in time.

       Permanent formwork shall be checked for its durability and compatibility with adjoining
       concrete before it is used in the structure. It shall be properly anchored to the concrete.

       Wire ties passing through beams, columns and walls shall not be allowed. In their place
       bolts passing through sleeves shall be used. Formwork spacers left insitu shall not impair
       the desired appearance or durability of the structure by causing spalling, rust staining or
       allowing the passage of moisture.

       For liquid retaining structures, sleeves shall not be provided for through bolts nor shall
       through bolts be removed if provided. The bolts, in the latter case, shall be cut at 25 mm
       depth from the surface and the hole made good by mortar of the same proportion as the
       concrete just after striking the formwork.

       Where specified all corners and angles exposed in the finished structure shall have
       chamfers or fillets of 20 mm x 20 mm size.

       Forms for substructure may be omitted when, in the opinion of the CGM, the

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       open excavation is firm enough (in hard non-porous soils) to act as a form. Such
       excavations shall be larger, as approved by the GM, than that required as per drawing to
       compensate for irregularities in excavation.

       The Contractor shall provide adequate props carried down to a firm bearing without
       overloading any of the structures.

       The shuttering for beams and slabs shall be so erected that the side shuttering of beams
       can be removed without disturbing the bottom shuttering. If the shuttering for a column
       is erected for the full height of the column, one side shall be built up in sections as
       placing of concrete proceeds or windows left for placing concrete from the side to limit
       the drop of concrete to 1.0m or as approved by the GM. The Contractor shall
       temporarily and securely fix items to be cast (embedments/ inserts) in a manner that will
       not hinder the striking of forms or permit loss of grout.

       Formwork showing excessive distortion, during any stage of construction, shall be
       repositioned and strengthened. Placed concrete affected by faulty formwork, shall be
       entirely removed and formwork corrected prior to placement of new concrete at
       Contractor’s cost.

       The striking time for formwork shall be determined based on the following
       requirements:

       (a)    Development of adequate concrete strength;
       (b)    Permissible deflection at time of striking form work;
       (c)    Curing procedure employed - its efficiency and effectiveness;
       (d)    Subsequent surface treatment to be done;
       (e)    Prevention of thermal cracking at re-entrant angles;
       (f)    Ambient temperatures; and
       (g)    Aggressiveness of the environment (unless immediate adequate steps are taken to
       prevent damage to the concrete).

       Under normal circumstances (generally where temperatures are above 20oC) forms may
       be struck after expiry of the time period given in IS:456 unless approved otherwise by
       the GM. For Portland Pozzolana/slagthe stripping time shall be suitably modified as
       approved by the CGM. It is the Contractor's responsibility to ensure that forms are not
       struck until the concrete has developed sufficient strength to support itself, does not
       undergo excessive deformation and resist surface damage and any stresses arising
       during the construction period.

3.7    Reinforcement Workmanship

       Reinforcing bars supplied bent or in coils shall be straightened cold without damage. No
       bending shall be done when ambient temperature is below 5oC. Local warming may be
       permitted if steel is kept below 10o C.

       All bars shall be accurately bent gradually and according to the sizes and shapes shown
       on the drawings/ schedules or as directed by GM.

       Re-bending or straightening incorrectly bent bars shall not be done without the approval

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           of the GM.

           Reinforcement shall be accurately fixed and maintained firmly in the correct position by
           the use of blocks, spacers, chairs, binding wire etc. to prevent displacement during
           placing and compaction of concrete. The tied in place reinforcement shall be approved
           by the GM prior to concrete placement. Spacers shall be of such materials and designs as
           will be durable, not lead to corrosion of the reinforcement and not cause spalling of the
           concrete cover.

           Binding wire shall be 16 gauge soft annealed wire. Ends of the binding wire shall be
           bent away from the concrete surface and in no case encroach into the concrete cover.

           Substitution of reinforcement, laps/splices not shown on drawing shall be subject to
           GM’s approval.

3.8        Tolerances

           Tolerance for formwork and concrete dimensions shall be as per IS:456 unless specified
           otherwise.


           Tolerances specified for horizontal or vertical building lines or footings shall not be
           construed to permit encroachment beyond the legal boundaries.

           The formwork shall be designed and constructed to the shapes, lines and dimensions
           shown on the drawings within the tolerances given below :

      (a)    Deviation from specified dimensions of cross - 6 mm
             section of columns and beams                     + 12 mm
      (b)    Deviations from dimensions of footings
             (Tolerances apply to concrete dimensions
             only, not to positioning of vertical reinforcing
             steel or dowels
      1)     Dimension in plan                                - 12 mm
                                                              + 50 mm
      2)     Eccentricity                                     0.02 times the width of the
                                                              footing in the direction of
                                                              deviation but not more than 50
                                                              mm
      3)     Thickness                                        ± 0.05 times the specified
                                                              thickness

3.9        Preparation Prior to Concrete Placement

           Before concrete is actually placed in position, the inside of the formwork shall be
           cleaned and mould oil applied, inserts and reinforcement shall be correctly positioned
           and securely held, necessary openings, pockets, etc. provided.

           All arrangements-formwork, equipment and proposed procedure, shall be approved by
           the GM. Contractor shall maintain separate Pour Card for each pour as per the format

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       enclosed.

3.10   Transporting, Placing and Compacting Concrete

       Concrete shall be transported from the mixing plant to the formwork with minimum
       time lapse by methods that shall maintain the required workability and will prevent
       segregation, loss of any ingredients or ingress of foreign matter or water.

       In all cases concrete shall be deposited as nearly as practicable directly in its final
       position. To avoid segregation, concrete shall not be rehandled or caused to flow. For
       locations where direct placement is not possible and in narrow forms the Contractor
       shall provide suitable drops and "Elephant Trunks". Concrete shall not be dropped from
       a height of more than 1.0m.


       Concrete shall not be placed in flowing water. Under water, concrete shall be placed in
       position by tremies or by pipeline from the mixer and shall never be allowed to fall
       freely through the water.

       While placing concrete the Contractor shall proceed as specified below and also ensure
       the following:

       (a)     Continuously between construction joints and pre- determined abutments.
       (b)     Without disturbance to forms or reinforcement.
       (c)     Without disturbance to pipes, ducts, fixings and the like to be cast in; ensure that
               such items are securely fixed. Ensure that concrete cannot enter open ends of
               pipes and conduits etc.
       (d)     Without dropping in a manner that could cause segregation or shock.
       (e)     In deep pours only when the concrete and formwork designed for this purpose
               and by using suitable chutes or pipes.
       (f)     Do not place if the workability is such that full compaction cannot be achieved.
       (g)     Without disturbing the unsupported sides of excavations; prevent contamination
               of concrete with earth. Provide sheeting if necessary. In supported excavations,
               withdraw the linings progressively as concrete is placed.
       (h)     If placed directly onto hardcore or any other porous material, dampen the surface
               to reduce loss of water from the concrete.
       (i)     Ensure that there is no damage or displacement to sheet membranes.
       (j)     Record the time and location of placing structural concrete.

       Concrete shall normally be compacted in its final position within thirty minutes of
       leaving the mixer. Concrete shall be compacted during placing with approved vibrating
       equipment without causing segregation until it forms a solid mass free from voids
       thoroughly worked around reinforcement and embedded fixtures and into all corners of
       the formwork. Immersion vibrators shall be inserted vertically at points not more than
       450 mm apart and withdrawn slowly till air bubbles cease to come to the surface,
       leaving no voids. When placing concrete in layers advancing horizontally, care shall be
       taken to ensure adequate vibration, blending and melding of the concrete between
       successive layers. Vibrators shall not be allowed to come in contact with reinforcement,
       formwork and finished surfaces after start of initial set. Over-vibration shall be avoided.



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       Concrete may be conveyed and placed by mechanically operated equipment after getting
       the complete procedure approved by the GM. The slump shall be held to the minimum
       necessary for conveying concrete by this method. When concrete is to be pumped, the
       concrete mix shall be specially designed to suit pumping. Care shall be taken to avoid
       stoppages in work once pumping has started.

       Except when placing with slip forms, each placement of concrete in multiple lift work,
       shall be allowed to set for at least 24 hours after the final set of concrete before the start
       of subsequent placement. Placing shall stop when concrete reaches the top of the
       opening in walls or bottom surface of slab, in slab and beam construction, and it shall be
       resumed before concrete takes initial set but not until it has had time to settle as
       approved by the GM. Concrete shall be protected against damage until final acceptance.

3.11   Mass Concrete Works

       Sequence of pouring for mass concrete works shall be as approved by the GM. The
       Contractor shall exercise great care to prevent shrinkage cracks and shall monitor the
       temperature of the placed concrete if directed.

3.12   Curing

       Curing and protection shall start immediately after the compaction of the concrete to
       protect it from:

       (a)     Premature drying out, particularly by solar radiation and wind;
       (b)     leaching out by rain and flowing water;
       (c)     rapid cooling during the first few days after placing;
       (d)     high internal thermal gradients;
       (e)     low temperature or frost;
       (f)     vibration and impact which may disrupt the concrete and interfere with its bond
               to the reinforcement.

       All concrete, unless approved otherwise by the GM, shall be cured by use of continuous
       sprays or ponded water or continuously saturated coverings of sacking, canvas, hessain
       or other absorbent material for the period of complete hydration with a minimum of 7
       days. The quality of curing water shall be the same as that used for mixing.

       Where a curing membrane is approved to be used by the GM, the same shall be of a
       non-wax base and shall not impair the concrete finish in any manner. The curing
       compound to be used shall be approved by the GM before use and shall be applied with
       spraying equipment capable of a smooth, even textured coat.

       Curing may also be done by covering the surface with an impermeable material such as
       polyethylene, which shall be well sealed and fastened.

3.13   Construction Joints and Keys
       Construction joints will be as shown on the drawing or as approved by the GM.
       Concrete shall be placed without interruption until completion of work between
       construction joints. If stopping of concreting becomes unavoidable anywhere, a properly
       formed construction joint shall be made with the approval of the GM.

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       Dowels for concrete work, not likely to be taken up in the near future, shall be coated
       with slurry and encased in lean concrete as indicated on the drawings or as approved by
       the GM.

       Before resuming concreting on a surface which has hardened all laitance and loose stone
       shall be thoroughly removed by wire brushing/hacking and surface washed with high
       pressure water jet and treated with thin layer of slurry for vertical joints and horizontal
       layers.

       When concreting is to be resumed on a surface which has not fully hardened, all laitance
       shall be removed by wire brushing, the surface wetted, free water removed and a coat of
       slurry applied. On this, a layer of concrete not exceeding 150 mm thickness shall be
       placed and well rammed against the old work. Thereafter work shall proceed in the
       normal way.

3.14   Foundation Bedding

       All earth surfaces upon which or against which concrete is to be placed, shall be well
       compacted and free from standing water, mud or debris. Soft or spongy areas shall be
       cleaned out and back filled with either soil-Cement mixture, lean concrete or clean sand
       compacted as approved by the GM. The surfaces of absorptive soils shall be moistened.

       Concrete shall not be deposited on large sloping rock surfaces. The rock shall be cut to
       form rough steps or benches by picking, barring or wedging. The rock surface shall be
       kept wet for 2 to 4 hours before concreting.

3.15   Finishes

       3.15.1 General

               The formwork for concrete works shall be such as to give the finish as specified.
               The Contractor shall make good any unavoidable defects as approved consistent
               with the type of concrete and finish specified; defects due to bad workmanship
               (e.g. damaged or misaligned forms, defective or poorly compacted concrete) will
               not be accepted. The Contractor shall construct the formwork using the correct
               materials and to meet the requirements of the design and to produce finished
               concrete to required dimensions, plumbs, planes and finishes.

       3.15.2 Surface Finish Type F1
              The main requirement is that of dense, well compacted concrete. No treatment is
              required except repair of defective areas, filling all form tie holes and cleaning
              up of loose or adhering debris. For surfaces below grade which will receive
              waterproofing treatment the concrete shall be free of surface irregularities which
              would interfere with proper and effective application of waterproofing material
              specified for use.

       3.15.3 Surface Finish Type F2

               The appearance shall be that of a smooth dense, well- compacted concrete

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               showing the slight marks of well fitted shuttering joints. The Contractor shall
               make good any blemishes.

       3.15.4 Surface Finish Type F3

               This finish shall give an appearance of smooth, dense, well-compacted concrete
               with no shutter marks, stain free and with no discolouration, blemishes, arises,
               airholes etc. Only lined or coated plywood with very tight joints shall be used to
               achieve this finish. The panel size shall be uniform and as large as practicable.
               Any minor blemishes that might occur shall be made good by the Contractor.

       3.15.5 IntegralFinish on Concrete Floor

               In all cases where integral finish on a concrete floor has been specified, the top
               layer of concrete shall be screeded off to proper level and tamped with tamper
               having conical projections so that the aggregate shall be forced below the
               surface. The surface shall be finished with a wooden float and a trowel with
               pressure. The finish shall be continued till the concrete reaches its initial set. No
               mortar finish shall be provided on the surface. Where specified, a floor hardener
               as approved by the GM shall be supplied and used as recommended by the
               manufacturer.

3.16   Repair and Replacement of Unsatisfactory Concrete

       Immediately after the shuttering is removed, all the defective areas such as honey-
       combed surfaces, rough patches, holes left by form bolts etc. shall be inspected by the
       GM who may permit patching of the defective areas or reject the concrete work.

       All through holes for shuttering shall be filled for full depth and neatly plugged flush
       with surface.

       Rejected concrete shall be removed and replaced by the Contractor at no additional cost
       to the Employer.

       For patching of defective areas all loose materials shall be removed and the surface shall
       be prepared as approved by the GM.

       Bonding between hardened and fresh concrete shall be done either by placing mortar or
       by applying epoxy. The decision of the GM as to the method of repairs to be adopted
       shall be final and binding on the Contractor. The surface shall be saturated with water
       for 24 hours before patching is done with 1:5sand mortar. The use of epoxy for bonding
       fresh concrete shall be carried out as approved by the GM.


3.17   Vacuum Dewatering of Slabs

       Where specified floor slabs, either grade or suspended, shall be finished by vacuum
       dewatering including all operations such as poker vibration, surface vibration, vacuum
       processing, floating and trowelling as per equipment manufacturers recommendation.
       The equipment to be used shall be subject to the GM’s approval.

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3.18   Hot Weather Requirements

       Concreting during hot weather shall be carried out as per IS: 7861 (Part I).

       Adequate provisions shall be made to lower concrete temperatures which shall not
       exceed 40o C at the time of placement of fresh concrete.

       Where directed by the GM, the Contractor shall spray non-wax based curing compound
       on unformed concrete surfaces at no extra costs.

3.19   Cold Weather Requirements

       Concreting during cold weather shall be carried out as per Is : 7861 (Part II).

       The ambient temperature during placement and up to final set shall not fall below 5
       Deg.C. Approved antifreeze/accelerating additives shall be used where directed.

       For major and large scale concreting works the temperature of concrete at times of
       mixing and placing, the thermal conductivity of the formwork and its insulation and
       stripping period shall be closely monitored.

3.20   Liquid Retaining Structures

       The Contractor shall take special care for concrete for liquid retaining structures,
       underground structures and those others specifically called for to guarantee the finish
       and water tightness.

       The minimum level of surface finish for liquid retaining structures shall be Type F2. All
       such structures shall be hydro-tested.

       The Contractor shall make all arrangements for hydro-testing of structure, all
       arrangements for testing such as temporary bulk heads, pressure gauges, pumps, pipe
       lines etc.

       The Contractor shall also make all temporary arrangements that may have to be made to
       ensure stability of the structures during construction.

       Any leakage that may occur during the hydro-test or subsequently during the defects
       liability period or the period for which the structure is guaranteed shall be effectively
       stopped either by SRC cement/epoxy pressure grouting, guniting or such other methods
       as may be approved by the GM. All such rectification shall be done by the
       CONTRACTOR to the entire satisfaction of the GM at no extra cost to the
       EMPLOYER.

3.21   Testing Concrete Structures for Leakage

       Hydro-static test for water tightness shall be done at full storage level or soffit of cover
       slab, as may be directed by the GM, as described below:



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       In case of structures whose external faces are exposed, such as elevated tanks, the
       requirements of the test shall be deemed to be satisfied if the external faces show no sign
       of leakage or sweating and remain completely dry during the period of observation of
       seven days after allowing a seven day period for absorption after filling with water.

       In the case of structures whose external faces are buried and are not accessible for
       inspection, such as underground tanks, the structures shall be filled with water and after
       the expiry of seven days after the filling; the level of the surface of the water shall be
       recorded. The level of water shall be recorded again at subsequent intervals of 24 hrs.
       over a period of seven days. Backfilling shall be withheld till the tanks are tested. The
       total drop in surface level over a period for seven days shall be taken as an indication of
       the water tightness of the structure. The GM shall decide on the actual permissible
       nature of this drop in the surface level, taking into account whether the structures are
       open or closed and the corresponding effect it has on evaporation losses. Unless
       specified otherwise, a structure whose top is covered shall be deemed to be water tight if
       the total drop in the surface level over a period of seven days does not exceed 40 mm.

       Each compartment/segment of the structure shall be tested individually and then all
       together.

       For structures such as pipes, tunnels etc. the hydrostatic test shall be carried out by
       filling with water, after curing as specified, and subjecting to the specified test pressure
       for specified period. If during this period the loss of water does not exceed the
       equivalent of the specified rate, the structure shall be considered to have successfully
       passed the test.

3.22   Optional Tests

       If the CGM feels that the materials i.e. OPC/PPC cement, sand, coarse aggregates,
       reinforcement and water are not in accordance with the Specifications or if specified
       concrete strengths are not obtained, he may order tests to be carried out on these
       materials in laboratory, to be approved by the CGM, as per relevant IS Codes.
       Contractor shall have to pay for these tests.


       In the event of any work being suspected of faulty material or workmanship requiring its
       removal or if the works cubes do not give the stipulated strengths, the GM reserves the
       right to order the Contractor to take out cores and conduct tests on them or do ultrasonic
       testing or load testing of structure, etc. The GM also reserves the right to ask the
       Contractor to dismantle and re-do such unacceptable work, at no cost to the Employer.
       Alternately GM also reserves the right to ask the CONTRACTOR to dismantle and re-
       do such unacceptable work at the cost of CONTRACTOR.

3.23   Grouting

       3.23.1 Standard Grout

               Grout shall be provided as specified on the drawings.

               The proportion of Standard Grout shall be such as to produce a flowable mixture

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               consistent with minimum water content and shrinkage. Surfaces to be grouted
               shall be thoroughly roughened and cleaned. All structural steel elements to be
               grouted, shall be cleaned of oil, grease, dirt etc. The use of hot, strong caustic
               solution for this purpose will be permitted. Prior to grouting, the hardened
               concrete shall be saturated with water and just before grouting, water in all
               pockets shall be removed. Grouting once started shall be done quickly and
               continuously. Variation in grout mixes and procedures shall be permitted if
               approved by the CGM. The grout proportions shall be limited as follows :

            Use                Grout Thickness                     W/C Ratio
                                                         Mix Proportions
                                                                    (max)
   a)    Fluid mix      Under 25mm        One part Portland to one   0.44
                                          part sand
   b)    General mix    25mm and over but One part Portland to 2     0.53
                        less than 50mm    parts of sand
   c)    Stiff mix      50mm and over     One part Portland to 3     0.53
                                          parts of sand
      3.23.2 Non-Shrink Grout

               Non –shrink grout where required shall be provided in strict accordance with the
               manufacturer’s instructions / specifications on the drawings
               General

               Inspection

               All materials, workmanship and finished construction shall be subject to
               continuous inspection and approval of GM. Materials rejected by GM shall be
               expressly removed from site and shall be replaced by Contractor immediately.

               Clean-Up
               Upon the completion of concrete work, all forms, equipment, construction tools,
               protective coverings and any debris, scraps of wood, etc. resulting from the work
               shall be removed and the premises left clean.

               Acceptance Criteria

               Any concrete work shall satisfy the requirements given below individually and
               collectively for it to be acceptable.

                      a)      properties of constituent materials;
                      b)      characteristic compressive strength;
                      c)      specified mix proportions;
                      d)      minimumcontent;
                      e)      maximum free-water/Cementratio;
                      f)      workability;
                      g)      temperature of fresh concrete;
                      h)      density of fully compacted concrete;
                      i)      cover to embedded steel;
                      j)      curing;
                      k)      tolerances in dimensions;

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                      l)      tolerances in levels;
                      m)      durability;
                      n)      surface finishes;
                      o)      special requirements such as;

                              i)      water tightness
                              ii)     resistance to aggressive chemicals
                              iii)    resistance to freezing and thawing
                              iv)     very high strength
                              v)      improved fire resistance
                              vi)     wear resistance
                              vii)    resistance to early thermal cracking

               The GM's decision as to the acceptability or otherwise of any concrete work shall
               be final and binding on the Contractor.

               For work not accepted, the GM may review and decide whether remedial
               measures are feasible so as to render the work acceptable. The GM shall in that
               case direct the Contractor to undertake and execute the remedial measures. These
               shall be expeditiously not effectively implemented by the Contractor. Nothing
               extra shall become payable to the Contractor by the Employer for executing the
               remedial measures.

3.24   Water stops

       3.24.1 Material

               The material for the PVC water stops shall be a plastic compound with the basic
               resin of polyvinyl chloride and additional resins, plasticizers, inhibitors, which
               satisfies the performance characteristics specified below as per IS:12200. Testing
               shall be in accordance with IS: 8543.

               a)     Tensile strength               :        3.6 N/mm2 minimum
               b)     Ultimate elongation            :         300% minimum
               c)     Tear resistance                :        4.9 N/mm2 minimum
               d)     Stiffness in flexure           :        2.46 N/mm2 minimum
               e)     Accelerated extraction

                      i)      Tensile strength    :           10.50 N/mm2 minimum
                      ii)     Ultimate elongation :           250% minimum
               (f)    Effect of Alkali            :           7 days
                      i) Weight increase          :           0.10% maximum
                      ii)     Weight decrease     :           0.10% maximum
                      iii)    Hardness change     :           ± 5 points
               (g)    Effect of Alkali            :           28 days
                      i)      Weight increase                 :      0.40% maximum
                      ii)     Weight decrease                 :      0.30% maximum
                      iii)    Dimension change :±1%

               PVC water stops shall be either of the bar type, serrated with centre bulb and end

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               grips for use within the concrete elements or of the surface (kicker) type for
               external use.

               PVC water stops shall be of approved manufacture. Samples and the test
               certificate shall be got approved by the GM before procurement for incorporation
               in the works. Alternatively G.I. sheet of 18 gage (1.3mm) thick and 200mm wide
               can be used by the contractor as construction joints.

       3.24.2 Workmanship

               Water stops shall be cleaned before placing them in position. Oil or grease shall
               be removed thoroughly using water and suitable detergents.

               Water stops shall be procured in long lengths as manufactured to avoid joints as
               far as possible. Standard L or T type of intersection pieces shall be procured for
               use depending on their requirement. Any non-standard junctions shall be made
               by cutting the pieces to profile for jointing. Lapping of water stops shall not be
               permitted. All jointing shall be of fusion welded type as per manufacturer's
               instructions.

               Water stops shall be placed at the correct location/level and suitably supported at
               intervals with the reinforcement to ensure that it does not deviate from its
               intended position during concreting and vibrating. Care shall also be taken to
               ensure that no honey-combing occurs because of the serrations/end grips, by
               placing concrete with smaller size aggregates in this region. Projecting portions
               of the water stops embedded in concrete shall be thoroughly cleaned of all
               mortar/ concrete coating before resuming further concreting operations. The
               projecting water stop shall also be suitably supported at intervals with the
               reinforcement to maintain its intended position during concreting so as to ensure
               that it does not bend leading to formation of pockets. In addition, smaller size
               aggregates shall be used for concreting in this region also.

3.25   Preformed Fillers and Joint Sealing Compound

       3.25.1 Materials

               Preformed filler for expansion/isolation joints shall be non-extruding and
               resilient type of bitumen impregnated fibers conforming to IS: 1838 (Part I).

               Bitumen coat to concrete/masonry surfaces for fixing the preformed bitumen
               filler strip shall conform to IS:702. Bitumen primer shall conform to IS: 3384.

               Sealing compound for filling the joints above the preformed bitumen filler shall
               conform to Grade 'A' as per IS: 1834.

       3.25.2 Workmanship

               The thickness of the preformed bitumen filler shall be 25mm for expansion joints
               and 50mm for isolation joints around foundation supporting rotator equipment's.
               Contractor shall procure the strips of the desired thickness and width in lengths

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               as manufactured. Assembly of small pieces/thicknesses of strips to make up the
               specified size shall not be permitted.

               The concrete/masonry surface shall be cleaned free from dust and any loose
               particles. When the surface is dry, one coat of industrial blown type bitumen of
               grade 85/25 conforming to IS:702 shall be applied hot by brushing at the rate of
               1.20 kg/sq.m. When the bitumen is still hot the preformed bitumen filler shall be
               pressed and held in position till it completely adheres. The surface of the filler
               against which further concreting/masonry work is to be done shall similarly be
               applied with one coat of hot bitumen at the rate of 1.20 kg/sq.m.

               Sealing compound shall be heated to a pouring consistency for enabling it to run
               molten in a uniform manner into the joint. Before pouring the sealing compound,
               the vertical faces of the concrete joint shall be applied hot with a coat of bitumen
               primer conforming to IS: 3384 in order to improve the adhesive quality of the
               sealing compound.

               Expansion joints between beams/slabs shall be provided with 100mm wide x
               4mm thick mild steel plate at the soffit of RCC beams/slabs to support and
               prevent the preformed joint filler from dislodging. This plate shall be welded to
               an edge angle of ISA 50 x 50 x 6mm provided at the bottom corner, adjacent to
               the expansion joint of one of the beams/slabs, by intermittent fillet welding. Steel
               surfaces shall be provided with 2 coats of red oxide zinc chrome primer and 3
               coats of synthetic enamel paint finish.




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          CONCRETE POUR CARD
 POUR NO.    :                                       DATE       :
 DRG. NO.    :                                       STRUCTURE :
 CONCRETE GRADE/QUANTITY/ :                          MAX. AGGREGATE SIZE /
                                                     START / COMPLETION TIME :
 SLUMP :
 SL. ITEM                                                               Remarks
 NO.                                                                    If Any
 1.   BEFORE         CENTRELINES CHECKED             YES/NO
      CONCRE
      TING
 2.                FORMWORK        AND     STAGING   YES/NO
                   CHECKED       FOR    ACCURACY,
                   STRENGTH & FINISH
 3.                REINFORCEMENT CHECKED             YES/NO
 4.                COVER     TO     REINFORCEMENT    YES/NO
                   CHECKED
 5.                VERIFIEDTEST CERTIFICATE FOR      YES / NO
                   SRC CEMENT/STEEL
 6.                ADEQUACY OF MATERIALS /           YES / NO
                   EQUIPMENT FOR POUR
 7.                EMBEDDED       PARTS CIVIL
                   (LOCATION & PLUMB)                YES/NO
                   CHECKED               MECH.       YES/NO
                                         ELEC.       YES/NO
 8.    SOFFIT(S) & POUR TOP(T) LEVELS CHECKED            S(B)
       BEFORE (B) & AFTER (A) FORM REMOVAL (ONLY         T(B)
       OF BEAMS OF OVER 10 M SPAN & IMPORTANT
       STRUCTURE LIKE T.G. ETC.)                         S(A)
                                                         T(A)

 9.    CONSTRUCTION JOINTS LOCATION & TIME (IF
       NOT AS PER DRAWING)
 10.   CEMENTCONSUMPTION IN KGS.
 11.   NUMBER OF CUBES AND IDENTIFICATION
       MARKS
 12.   TEST CUBE RESULTS (7 DAYS / 28 DAYS)
 13.   CONCRETE CONDITION ON FORM REMOVAL      V.GOOD/GOOD/FAI
                                               R/POOR


               Contractor’s Representative        GM’s Representative

NOTES:      1. EACH POUR TO HAVE SEPARATE CARDS, IN TRIPLICATE ONE EACH FOR
               CLIENT, CONTRACTOR & SITE OFFICE.

UNDER REMARKS INDICATE DEVIATIONS FROM DWGS. & SPECIFICATIONS,
CONGESTION IN REINFORCEMENT IF ANY, UNUSUAL OCCURRENCES SUCH AS FAILURE
OF EQUIPMENTS, SINKING OF SUPPORTS / PROPS. HEAVY RAINS AFFECTING
CONCRETING, POOR COMPACTION, IMPROPER CURING, OTHER DEFICIENCIES,
OBSERVATIONS ETC.



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                        4.0     STRUCTURAL STEEL WORK


4.1      Applicable Codes and Specifications
         The supply, fabrication, erection and painting of structural steel works shall comply with
         the following specifications, standards and codes unless otherwise specified herein. All
         standards, specifications and codes of practices referred to herein shall be the latest
         editions including all applicable official amendments and revisions.

IS : 808     Dimensions for Hot Rolled Steel sections
IS : 814     Covered Electrodes for Manual Metal Arc Welding of Carbon and
             Carbon Maganese Steel
IS : 800     Code of Practice for General Construction in Steel
IS : 7205    Safety Code for Erection of Structural Steel Work
IS : 7215    Tolerances for Fabrication of Steel Structures
IS : 1161    Steel Tubes for structural purposes
IS:10 IS:102 Ready Mixed paint, Brushing, Red Lead, Non-setting, Priming.

IS:110      Ready Mixed paint, brushing, grey filler for enamels for use over
            primers.
IS:117      Ready Mixed paint, Brushing, Finishing, Exterior Semigloss for
            general purposes, to Indian Standard colours.
IS:158      Ready Mixed paint, Brushing, Bituminous, Black, Lead free, Acid,
            Alkali and heat resisting.
IS:159      Ready Mixed paint, Brushing, Acid resisting for protection
            against acid fumes, colour as required.
IS:341      Black Japan, Types A, B and C
IS:2339     Aluminium paint for general purposes, in Dual container
IS:2932     Specification for enamel, synthetic, exterior, type 1,
            (a) undercoating, (b) finishing
IS:2933     Specification for enamel, exterior, type 2,
             (a) undercoating, (b) finishing
IS:5905     Sprayed aluminium and zinc coatings on Iron and Steel.
IS:6005     Code of practice for phosphating of Iron and Steel.
IS:9862     Specification for ready mixed paint, brushing, bituminous, black,
            lead free, acid, alkali, water & chlorine resisting.
IS : 1239   Mild steel tubes, tubulars and other Wrought steel fittings
            Part 1 – Mild steel tubes
            Part 2 – Mild steel tubulars and other wrought steel pipe fittings
IS : 1363   Hexagon Head Bolts, Screws and Nuts of product Grade C (Size
(Parts 1 to range M5 to M64)
3)
IS : 1367   Technical Supply Conditions for Threaded Fasteners
(All parts)
IS : 1852   Rolling and Cutting Tolerances for Hot Rolled Steel Products
IS : 1977   Structural Steel (Ordinary Quality)
IS : 2062   Steel for General Structural Purposes
IS : 3502   Steel Chequered Plate
IS : 3757   High Strength Structural Bolts

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IS : 803      Code of practice for design, fabrication and erection of vertical
              mild steel cylindrical welded storage tanks
IS : 816      Code of Practice for use of Metal Arc Welding for General
              construction in Mild Steel
IS : 822      Code of Procedure for Inspection of Welds
IS : 1182     Recommended Practice for Radiographic examination of Fusion –
              Welded Butt Joints in Steel Plates
IS : 1477     Code of Practice for Painting of (Parts 1&2) Ferrous Metals in
              Buildings
IS : 2595     Code of Practice for Radiographic Testing
IS : 3658     Code of Practice for Liquid Penetrant Flaw Detection
IS : 5334     Code of Practice for Magnetic Particle Flaw Detection of Welds
IS : 9595     Recommendations for Metal Arc Welding of Carbon and Carbon
              Manganese Steel

4.2    Steel Materials

       All materials used shall be new, unused and free from defects.

       Steel conforming to IS:1977 shall be used only for the following :

Fe310-0(St 32-0) For general purposes such as door/window frames, grills,
                 steel gates, handrails, fence posts, tee bars and other non-
                 structural use.
Fe410-0(St 42-0) For structures not subjected to dynamic loading other than
                 wind loads such as :Platform roofs, foot over bridges,
                 building, factory sheds etc.
Fe510-0(St 42-0) Grade steel shall not be used
                     a) If welding is to be employed for fabrication
                     b) If site is in severe earthquake zone
                     c) If plastic theory of design is used
      Drawings prepared by the VENDOR/CONTRACTOR

       The VENDOR/CONTRACTOR shall prepare all fabrication and erection drawings for
       the entire work. All the drawings for the entire work shall be prepared in metric units.
       The drawings shall preferably be of one standard size and the details shown there in
       shall be clear and legible.
       All fabrication drawings shall be submitted to the GM for approval.

       No fabrication drawings will be accepted for GM’s approval unless checked and
       approved by the VENDOR/Contractor’s qualified structural engineer and accompanied
       by an erection plan showing the location of all pieces detailed.             The
       VENDOR/CONTRACTOR shall ensure that connections are detailed to obtain ease in
       erection of structures and in making field connections.

       Fabrication shall be started by the VENDOR/CONTRACTOR only after GM’s approval
       of fabrication drawings. Approval by the CGM of any of the drawings shall not relieve
       the VENDOR/CONTRACTOR from the responsibility for correctness of engineering
       and design of connections, workmanship, fit of parts, details, material, errors or
       omissions or any and all work shown thereon. The GM’s approval shall constitute

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       approval of the size of members, dimensions and general arrangement but shall not
       constitute approval of the connections between members and other details.

       The drawings prepared by the VENDOR/CONTRACTOR and all subsequent revisions
       etc. shall be at the cost of the VENDOR/CONTRACTOR for which no separate
       payment will be made.

4.3    Fabrication

       4.3.1 General

               All workman ship and finish shall be of the best quality and shall conform to the
               best approved method of fabrication. All materials shall be finished straight and
               shall be machined/ground smooth true and square where so specified. All holes
               and edges shall be free of burrs. Shearing and chipping shall be neatly and
               accurately done and all portions of work exposed to view shall be neatly
               finished. Unless otherwise approved by the GM, reference may be made to
               relevant IS codes for providing standard fabrication tolerance. Material at the
               shops shall be kept clean and protected from weather.

       4.3.2 Connections

               Shop/field connections shall be as per approved fabrication drawings.
               In case of bolted connections, taper washers or flat washers or spring washers
               shall be used with bolts as necessary. In case of high strength friction grip bolts,
               hardened washers be used under the nuts or the bolt heads whichever are turned
               to tighten the bolts. The length of the bolt shall be such that atleast one thread of
               the bolt projects beyond the nut, except in case of high strength friction grip bolts
               where this projection shall be at least three times the pitch of the thread.
               In all cases where bearing is critical, the unthreaded portion of bolt shall bear on
               the members assembled. A washer of adequate thickness may be provided to
               exclude the threads from the bearing thickness, if a longer grip bolt has to be
               used for this purpose.

               All connections and splices shall be designed for full strength of members or
               loads. Column splices shall be designed for the full tensile strength of the
               minimum cross section at the splice.

               All bolts, nuts, washers, electrodes, screws etc., shall be supplied/brought to site
               10% in excess of the requirement in each category and size. Rates shall cover
               the cost of this extra quantity.

               All members likely to collect rain water shall have drain holes provided.

       4.3.3 Straightening

               All materials shall be straight and, if necessary, before being worked shall be
               straightened and/or flattened by pressure and shall be free from twists. Heating
               or forging shall not be resorted to without the prior approval of the GM in
               writing.

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       4.3.4 Rolling and Forming

               Plates, channels, R.S.J. etc., for circular bins, bunkers, hoppers, gantry girders,
               etc., shall be accurately laid off and rolled or formed to required profile/shape as
               called for on the drawings. Adjacent sections shall be match-marked to facilitate
               accurate assembly, welding and erection in the field.

       4.3.5 High Strength Friction Grip Bolting

               Inspection after tightening of bolts shall be carried out as stipulated in the
               appropriate standards depending upon the method of tightening and the type of
               bolt used.

       4.3.6 Welding

               Welding procedure shall be submitted to the GM for approval. Welding shall be
               entrusted to qualified and experienced welders who shall be tested periodically
               and graded as per IS 817, IS : 7310 (Part 1) and IS : 7318 (Part 1).

               While fabricating plated beams and built up members, all shop splices in each
               component part shall be made before such component part is welded to other
               parts of the members. Wherever weld reinforcement interferes with proper fit-up
               between components to be assembled off welding, these welds shall be ground
               flush prior to assembly.
               Approval of the welding procedure by the GM shall not relieve the Contractor of
               his responsibility for correct and sound welding without undue distortion in the
               finished structure.
               No welding shall be done when the surface of the members is wet nor during
               periods of high wind.

               Each layer of a multiple layer weld except root and surfaces runs may be
               moderately penned with light blows from a blunt tool. Care shall be exercised to
               prevent scaling or flaking of weld and base metal from over penning.

               No welding shall be done on base metal at a temperature below –5 Deg.C. Base
               metal shall be preheated to the temperature as per relevant IS codes.

               Electrodes other than low-hydrogen electrodes shall not be permitted for
               thicknesses of 32 mm and above.

               All welds shall be inspected for flaws by any of the methods described under
               Sub-clause 4.6.3. The choice of the method adopted shall be agreed with the
               GM.

               The correction of defective welds shall be carried out in a manner approved by
               the GM without damaging the parent metal. When a crack in the weld is
               removed, magnetic particle inspection or any other equally positive means
               approved by the GM shall be used to ensure that the whole of the crack and
               material up to 25 mm beyond each end of the crack has been removed. The cost

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               of all such tests and operations incidental to correction shall be borne by the
               Contractor.

4.4    Tolerances
       The dimensional and weight tolerances for rolled shapes shall be in accordance with IS :
       1852 for indigenous steel and equivalent applicable codes for imported steel. The
       tolerances for fabrication of structural steel shall be as per IS : 7215.


       Cutting, punching, drilling, welding and fabrication tolerances shall be generally as per
       relevant IS codes.

4.5    End Milling

       Where compression joints are specified to be designed for bearing, the bearing surfaces
       shall be milled true and square to ensure proper bearing and alignment.

4.6    Inspection

       4.6.1 General

               The Contractor shall give due notice to the GM in advance of the works being
               made ready for inspection. All rejected material shall be promptly removed from
               the shop and replaced with new material for the GM’s inspection. The fact that
               certain material has been accepted at the Contractor’s shop shall not invalidate
               final rejection at site by the GM if it fails to conform to the requirements of these
               specifications, to be in proper condition or has fabrication inaccuracies which
               prevent proper assembly nor shall it invalidate any claim which the Employer
               may make because of defective or unsatisfactory materials and/or workmanship.

               No materials shall be painted or dispatched to site without inspection and
               approval by the GM unless such inspection is waived in writing by the GM.

               The Contractor shall provide all the testing and inspection services and facilities
               for shop work except where otherwise specified.

               For fabrication work carried out in the field the same standard of supervision and
               quality control shall be maintained as in shop fabricated work. Inspection and
               testing shall be conducted in a manner satisfactory to the GM.

               Inspection and tests on structural steel members shall be as set forth below.

       4.6.2 Material Testing

               If mill test reports are not available for any steel materials the same shall be
               tested by the Contractor to the Employer’s Representative’s satisfaction to
               demonstrate conformity with the relevant specification.

       4.6.3 Tests on Welds



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               (a)    Magnetic Particle Test

                      Where welds are examined by magnetic particle testing, such testing shall
                      be carried out in accordance with relevant IS codes. If heat treatment is
                      performed, the completed weld shall be examined after the heat
                      treatment. All defects shall be repaired and retested. Magnetic particle
                      tests shall be carried out using alternating current. Direct current may be
                      used with the permission of the GM.

               (b)    Liquid Penetrate Inspection

                      In the case of welds examined by Liquid Penetrant Inspection, such tests
                      shall be carried out in accordance with relevant IS Code. All defects
                      shown shall be repaired and rechecked.

               (c)    Radiographic Inspection

                      All full strength butt welds shall be radiographed in accordance with the
                      recommended practice for radiographic testing as per relevant IS code.

       4.6.4 Dimensions, Workmanship & Cleanliness

               Members shall be inspected at all stages of fabrication and assembly to verify
               that dimensions, tolerances, alignment, surface finish and painting are in
               accordance with the requirements shown in the Contractor’s approved
               fabrication drawings.

       4.6.5 Test Failure
             In the event of failure of any member to satisfy inspection or test requirement,
             the Contractor shall notify the GM. The Contractor must obtain permission from
             the GM before any repair `is undertaken. The quality control procedures to be
             followed to ensure satisfactory repair shall be subject to approval by the GM.

               The GM has the right to specify additional testing as he deems necessary, and
               the additional cost of such testing shall be borne by the Employer, only in case of
               successful testing.

               The Contractor shall maintain records of all inspection and testing which shall be
               made available to the GM.


4.7    Shop Matching

       For structures like bunkers, tanks, etc. Shop assembly is essential. For other steel work,
       such as columns along with the tie beams/bracings may have to be shop assembled to
       ensure satisfactory fabrication, obtaining of adequate bearing areas etc., if so desired by
       the GM. All these shop assemblies shall be carried out by the Contractor.




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4.8    Drilling Holes for other works

       As a part of this Contract, holes in members required for installing equipment or steel
       furnished by other manufacturers or other contractors shall be drilled by the
       VENDOR/CONTRACTOR at no extra cost of the EMPLOYER. The information for
       such extra holes will be supplied by the EMPLOYER/CGM.

4.9    Marking of Members

       After checking and inspection, all members shall be marked for identification during
       erection. This mark shall correspond to distinguishing marks on approved erection
       drawings and shall be legibly painted and stamped on it. The erection mark shall be
       stamped with a metal dye with figures at least 20 mm high and to such optimum depth
       as to be clearly visible.

       All erection marks shall be on the outer surface of all sections and near one end, but
       clear of bolt holes. The marking shall be so stamped that they are easily discernible
       when sorting out members. The stamped marking shall be encircled boldly by a
       distinguishable paint to facilitate easy location.

       Erection marks on like pieces shall be in identical locations. Members having lengths of
       7.0 m or more shall have the erection mark at both ends.

4.10   Errors

       Any error in shop fabrication which prevents proper assembling and fitting up of parts in
       the field by moderate use of drift pins or moderate amount of reaming will be classified
       by the GM as defective workmanship. Where the GM rejects such material or defective
       workmanship, the same shall be replaced by materials and workmanship conforming to
       the Specifications by the Contractor, at no cost to the Employer.

4.11   Painting of Steel Work

       All fabricated steel material, except those galvanized shall receive protective paint
       coating as specified in specification, which is described below.

       4.11.1 Materials

                Red-oxide – zinc chrome primer shall conform to IS:2074.
                Synthetic enamel paint shall conform to IS : 2932.
                Aluminium paint shall conform to IS:2339.
                All the materials shall be of the best quality from an approved manufacturer.
                Contractor shall obtain prior approval of the GM for the brand of manufacture
                and the colour/shade. All the materials shall be brought to the site in sealed
                containers.

       4.11.2 Workmanship

                Painting work shall be carried out only on thoroughly dry surfaces. Painting
                shall be applied either by brushing or by spraying. Contractor shall procure the

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               appropriate quality of paint for this purpose as recommended by the
               manufacturer. The workmanship shall generally conform to the requirement of
               IS:1477 (Part 2).

               The type of paint, number of costs etc. shall be as specified in the respective
               items of work.

               Primer and finish paint shall be compatible with each other to avoid cracking and
               wrinkling. Primer and finish paint shall be from the same manufacturer.

               All the surfaces shall be thoroughly cleaned of oil, grease, dirt, rust and scale.
               The methods to be adopted using solvents, wire brushing, power tool cleaning
               etc., shall be as per IS:1477 (Part – I) and as indicated in the item of work.

               It is essential to ensure that immediately after preparation of the surfaces, the
               first coat of red oxide-zinc chrome primer shall be applied by brushing and
               working it well to ensure a continuous film without holidays. After the first coat
               becomes hard dry, a second coat of primer shall be applied by brushing to obtain
               a film free from `holidays’.

               After the second coat of primer is hard dry, the entire surface shall be wet rubbed
               cutting down to a smooth uniform surface. When the surface becomes dry, the
               undercoat of synthetic enamel paint of optimum thickness shall be applied by
               brushing with minimum of brush marks. The coat shall be allowed to hard-dry.
               The under coat shall then be wet rubbed cutting down to a smooth finish, taking
               adequate care to ensure that at no place the undercoat is completely removed.
               The surface shall then be allowed to dry.

               The first finishing coat of paint shall be applied by brushing and allowed to hard-
               dry. The gloss from the entire surface shall then be gently removed and the
               surface dusted off. The second finishing coat shall then be applied by brushing.

               Atleast 24 hours shall elapse between the application of successive coats. Each
               coat shall vary slightly in shade and this shall be got approved by the GM.

4.12   Acceptance of Steel, its Handling & Storage

       The Contractor shall carefully check the steel to be erected at the time of acceptance.
       Any fabrication defects observed should be brought to the notice of the GM.

       No dragging of steel shall be permitted. All steel shall be stored 300mm above ground
       on suitable packing to avoid damage. It shall be stored in the order required for
       erection, with erection marks visible. All storage areas shall be prepared and maintained
       by the Contractor. Steel shall not be stored in the vicinity of areas where excavation or
       grading will be done and, if so stored temporarily, this shall be removed by the
       Contractor well before such excavation and/or grading commences to a safe distance to
       avoid burial under debris.

       Scratched or abraded steel shall be given a coat of primer in accordance with the
       Specifications for protection after unloading and handling prior to erection. All milled

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       and machined surfaces shall be properly protected from rust/corrosion by suit able
       coating and also from damage.

4.13   Anchor Bolts & Foundations

       The Contractor shall carefully check the location and layout of anchor bolts embedded
       in foundations constructed, to ensure that the structures can be properly erected as
       shown on the drawings. Any discrepancy in the anchor bolts/foundation shall be
       reported to the GM.

       Leveling of column bases to the required elevation may be done either by providing
       shims or three nuts on the upper threaded portion of the anchor bolt. All shim stock
       required for keeping the specified thickness of grout and in connection with erection of
       structures on foundations, crane brackets or at any other locations shall be of good M.S.
       plates and shall be supplied by the Contractor at his cost.

       A certain amount of cleaning of foundations and preparing the area is considered normal
       and shall be carried out by the Contractor at no extra cost. here beams bear in pockets or
       on walls, bearing plates shall be set and leveled as part of the work. All grouting under
       column base plates or beam bearing plates will be carried out by the Contractor.

4.14   Assembly & connections

       Field connections may be effected by riveting, bolting, welding or by use of high
       strength friction grip bolts as shown on the design and erection drawings.

       All field connection work shall be carried as per the drawings. All bolts, nuts, washers,
       rivets, electrodes required for field connections shall be supplied by the Contractor free
       of cost.

       All assembling shall be carried on a level platform.

       Drifts shall be used only for drawing the work to proper position and must not be used to
       such an extent as to damage the holes. Size of drifts larger than the normal diameter of
       hole shall not be used. Any damaged holes or burrs must be rectified to the satisfaction
       of the GM.

       Corrections of minor misfits and reasonable amount of reaming and cutting of excess
       stock from rivets shall be considered as a part of erection. Any error in the shop, which
       prevents proper fit on a moderate amount of reaming and slight chipping or cutting, shall
       be immediately reported to the GM.

4.15   Erection

       All structural steel shall be erected as shown on the drawings prepared by the
       Contractor. Proper size steel cable slings, etc., shall be used for hoisting. Guys shall not
       be anchored to existing structures, foundations, etc., unless so permitted by the GM in
       writing. Care shall be taken to see that ropes in use are always in good condition.

       Steel columns in the basement, if any, are to be lowered and erected carefully with the

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       help of a crane and/or derrick without damaging the basement walls or floor.

       Structural steel frames shall be erected plumb and true. Frames shall be lifted at points
       such that they are not liable to buckle and deform. Trusses shall be lifted only at node
       points. In the case of trusses, roof girders, all of the purlins and wind bracing shall be
       placed simultaneously and the columns shall be erected truly plumb on screed bars over
       the pedestals. All steel columns and beams shall be checked for plumb and level
       individually before and after connections are made. Temporary bracings shall be
       introduced wherever necessary to take care of all loads to which the structure may be
       subjected, including erection equipment and the operation thereof. Such bracings shall
       be left in place as long as may be required for safety and stability.

       Chequered plates shall be fixed to supporting members by tack welding or by
       countersunk bolts as shown/specified in relevant drawings and/or as approved by the
       CGM. The edges shall be made smooth and no burrs or jagged ends shall be left. While
       splicing, care should be taken so that there is continuity in pattern between the two
       portions. Care should also be taken to avoid distortion of the plate while welding. The
       erection of chequered plates shall include :
       a)      Welding of stiffening angles/vertical stiffening ribs
       b)      Cutting to size and making holes to required shape wherever necessary to allow
               service piping and/or cables to pass through
       c)      Splicing as shown in relevant drawings
       d)      Smoothening of edges
       e)      Fixing of chequered plates by tack welding or by countersunk bolts
       f)      Providing lifting hooks for ease of lifting.

       As erection progresses, the work shall be securely bolted to take care of all dead load,
       wind, seismic and erection stresses.

       No riveting or welding or final bolting shall be done until the structure has been properly
       aligned and approved by the CGM. No cutting, heating or enlarging of the holes shall be
       carried out without the prior written approval of the CGM.

       Test certificates shall be furnished by the Contractor.

4.16   Inspection

       The CGM shall have free access to all parts of the job during erection and all erection
       shall be subjected to his approval. In case of faulty erection, all dismantling and re-
       erection required will be at the Contractor’s cost. No paint shall be applied to rivet
       heads or field welds or bolts until these have been approved by the CGM.

4.17   Concrete Tolerances

       4.17.1 General

               Tolerances mentioned below shall be achieved after the entire structure or part
               thereof is in line, level and plumb.

       4.17.2 Columns

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               Deviation of column axes at foundation top level with respect to true axes :

               (a)    In longitudinal direction                      ±5 mm
               (b)    In lateral direction                           ±5 mm

               Deviation in the level of bearing
               surface of columns at foundation
               top with respect to true level                        ±5mm

               Out of plumbness (verticality) of column axis from true vertical axis, as
               measured at column top:

               (a)    For columns upto and including    ±1/1000 of column height in mm
                      15 metres in height or ±15 mm whichever is less
               (b)    For columns exceeding 15           ±1/1000 of column height in mm
                      metres in height or ±20 mm whichever is less

               Deviation in straightness in longitudinal            ±1/1000 of column height in
               mm
               and transverse planes of column at any               or ±10 mm whichever is less
               point along the height
               Difference in erected position of adjacent           ±10mm
               pairs of columns along length or across
               width of building prior to connecting
               trusses/beams with respect to true distance
               Deviation in any bearing or seating level                    ±5 mm
               with respect to true level
               Deviation in differences in bearing level                    ±10 mm
               of a member on adjacent pair of columns
               both across and along the building

       4.17.3 Trusses And Beams

               Shift at the centre of span of top chord                ±1/250 of height of truss in mm
               member with respect to the vertical plane               or ±15 mm whichever is less
               passing through the centre of bottom chord
               Lateral shift of top chord of truss at the              ±1/1500 of span of truss in mm
               centre of span from the vertical plane                  or ±15 mm whichever is less
               passing through the centre of supports
               of the truss
               Lateral shift in location of truss from its             ±10 mm
               true vertical position
               Lateral shift in location of purlin true                ±5 mm
               position
               Deviation in difference of bearing                      i) ±20 mm for trusses
               levels of trusses or beams from                         ii) For beams : the true
               difference                                      Depth < 1800mm : ±6mm
                                               Depth > 1800mm : ±10mm
Deviation in sag in chords and diagonals                1/1500 of length in mm or

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                                                        of truss between node points        10mm
                                                  whichever is smaller
Deviation in sweep of trusses, beams etc.               1/1000 of span in mm subject in the
                                                         horizontal planeto a maximum of 10 mm
4.17.4 Crane Girders & Rails
Shift in the centre line of crane rail with              ±5 mm
respect to centre line of web of crane girder
Shift in plan of alignment of crane rail with            ±5 mm
respect to true axis of crane rail at any point
Difference in alignment of crane rail in plan            ±1 mm
measured between any two points 2 metres
apart along rail
Deviation in crane track with respect to
Time gauge

        For track gauges upto and
               Including 15 metres                                      ±5 mm
        For track gauges more than                       ± [5 + 0.25 (S-15)]
               15 metres                                 where S in metres is true gauge

Deviation in the crane rail level at any               ±1/1200 of the gauge distance or
point from true level                             ±10mm whichever is less
Difference in the crane rail actual levels             ±2 mm
between any two points 2 metres apart
along the rail length
Difference in levels between crane track
Rails at
(a)      Supports of crane girders                       ±15 mm
(b)      Mid span of crane girders                       ± 20 mm
Relative shift of crane rail surfaces at a               2 mm subject to grinding of
joint in plane and elevation                      surfaces for smooth transition
Relative shift in the location of crane           1/1000 of track gauge S in
stops (end buffers) along the crane tracks               mm subject to maximum
with track gauge S in mm                                 of 20 mm

4.18    Painting

           After steel has been erected, all bare and abraded spots, rivet heads, field welds, bolt
           heads and nuts shall be spot painted with primer. Before paint is applied, the surface
           shall be dry and free from dust, dirt, scale and grease. All surfaces inaccessible after
           erection shall receive two coats of the approved paint before erection.

4.19    Clean up of Work site

        During erection, the Contractor shall at all times keep the working and storage areas
        used by him free from accumulation of waste materials or rubbish. Before completion
        of erection, he shall remove or dispose of in a satisfactory manner all temporary
        structures, waste and debris and leave the premises in a condition satisfactory to the GM.




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5.0                        Pipelines and Pipe work


       Providing and supplying tested RCC pipes including freight, taxes, insurance and laying
       and jointing them along with specials such as tees, bends, reducers and jointing
       material and joints including lighting, guarding, barricading and other safety provisions,
       cutting the pipes, hydraulic testing after laying etc. complete for following material of
       construction and sizes of pipes (excluding cost of excavation, refilling)
A)     Material
1)     Scope


This specification covers the requirements for manufacturing, testing, supplying, jointing and
           testing at work sites of Reinforced Cement Concrete (RCC) pipes, of non pressure
           varieties used for sewers and storm water drains. R.C.C. NP3 / NP4 class pipes are
           to be used for sewer collecting system.


2)     Applicable Codes


The manufacturing, testing, supplying, jointing and testing at work sites of RCC pipes shall
           comply with all currently applicable statutes, regulations, standards and codes. In
           particular, the following standards, unless otherwise specified herein, shall be
           referred. In all cases, the latest revision of the codes shall be referred to. If
           requirements of this specification conflict with the requirements of the codes and
           standards, this specification shall govern.


2.1    Materials


(a)     IS: 458        -       Specification for concrete pipes (with and without reinforcement.
                              – latest edition, 2003) (where mentioned it should be latest
                              revised
                               code.)
(b)    IS: 3597       -       Method of tests for concrete pipes.
(c)    IS: 5382               Specification for rubber sealing rings for gas mains, water mains
                              & sewers.
(d)    IS: 516        -       Method of test for strength of concrete.


2.2    Codes of Practice


(a)    IS: 456        -       Code of practice for plain and reinforced concrete.


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(b)     IS: 783        -         Code of practice for laying of concrete pipes.


3.      Design


3.1     Design of RCC pipes shall be in accordance with the relevant clauses of IS 458.


3.2     The details of reinforcement shall be as per clause 5.2 of IS: 458.


3.3     The ends of pipes shall be in accordance with relevant clauses of IS: 458.


4.      Manufacturing


4.1     General


4.1.1   The method of manufacture shall be such that the form and the dimensions of the
        finished pipes are accurate within the limits specified in relevant IS: 458. The surfaces
        and edges of the pipes shall be well defined and true, and their ends shall be square
        with the longitudinal axis. The ends of the pipes shall be further reinforced by an extra
        ring of reinforcement to avoid breakage during transportation.


4.1.2   The RCC pipes and collars / rubber rings shall be systematically checked for any
        manufacturing defects by experienced supervisors so as to maintain a high standard of
        quality.


4.1.3   Owner representative / Engineer In-Charge shall at all reasonable times have free
        access to the places where the pipes and collars / rubber rings are manufactured for
        the purpose of examining and testing the pipes and collars / rubber rings and of
        witnessing the test and manufacturing.


4.1.4   All tests specified either in this specification or in the relevant Indian Standards shall be
        performed by Supplier / Contractor at his own cost and in presence of Owner
        representative / Engineer In-Charge if desired. For this, sufficient notice before testing
        of the pipes shall be given to Owner representative / Engineer In-Charge.


4.1.5   If the test is found unsatisfactory, Owner representative / Engineer In-Charge may
        reject any or all pipes of that lot. The decision of Owner representative/ Engineer In-
        Charge in this matter shall be final and binding on Contractor and not subject to any
        arbitration or appeal.


4.2     Curing



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4.2.1   Pipes manufactured in compliance with IS: 458 shall be either water cured or steam
        cured in accordance with the relevant requirements of IS: 458.


4.3     Dimensions


4.3.1   The internal diameter, wall thickness and length of barrel and collar of pipes,
        reinforcement (longitudinal and spiral), type of ends and minimum clear cover to
        reinforcement and strength test requirements shall be as per the relevant clauses /
        tables of IS:458 for different class of pipes.


4.3.2   The tolerances regarding overall length, internal diameter of pipes or socket and barrel
        wall thickness shall be as per relevant clauses of IS: 458.


4.4     Workmanship and Finish


4.4.1   Pipes shall be straight and free from cracks except that craze cracks may be permitted.
        The ends of the pipes shall be square with their longitudinal axis so that when placed in
        a straight line in the trench no opening between ends in contact shall exceed 3 mm in
        pipes up to 600 mm diameter (inclusive), and 6 mm in pipes larger than 600 mm
        diameter.


4.4.2   The outside and inside surfaces of the pipes shall be smooth, dense and hard, and
        shall not be coated with cement wash or other preparation unless otherwise agreed to
        between Owner representative / Engineer In-Charge and the manufacturer or supplier.


4.4.3   The pipes shall be free from defects resulting from imperfect grading of the aggregate,
        mixing or molding.


4.4.4   The pipes shall be free from local dents or bulges greater than 3 mm in depth and
        extending over a length in any direction greater than twice the thickness of barrel.


4.4.5   The deviation from straight in any pipes throughout its effective length, tested by means
        of a rigid straight edge parallel to the longitudinal axis of the pipe shall not exceed, for
        all diameter 3 mm for every meter run.


4.5     Testing


        All pipes for testing purposes shall be selected at random from the stock of the
        manufacturer and shall be such as would not otherwise be rejected under the criteria of
        tolerances as mentioned in IS: 458.



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        During manufacture, tests on concrete shall be carried out as per IS: 456.             The
        manufacturer shall supply, when required to do so by Owner representative /Engineer
        the results of compressive tests of concrete cubes and split tensile tests of concrete
        cylinders made from the concrete used for the pipes. The manufacturer shall supply
        cylinders or cubes for test purposes required by the Owner representative/Engineer and
        such cylinders or cubes shall withstand the tests prescribed by the manufacturer for the
        hydrostatic test pressure.    For non-pressure pipes, 2 percent of the pipes shall be
        tested for hydrostatic test pressure.


        The specimen of pipes for the following tests shall be selected in accordance with
        relevant clause of IS: 458 and tests in accordance with the methods described in IS:
        3597.


             i)      Flow test
             ii)     Three edge bearing test
             iii)    Absorption test.



4.6     Sampling and Inspection


4.6.1   In any consignment, all the pipes of it class and size and manufactured under similar
        conditions of production shall be grouped together to constitute a lot. The conformity of
        a lot to the requirements of this specification shall be ascertained on the basis of tests
        on pipes selected from it.


4.6.2   The number of pipes to be selected from the lot shall be in accordance with column 1
        and 2 of Table 22 of IS: 458-2003.


4.6.3   Pipes shall be selected at random. In order to ensure randomness, all the pipes in the
        lot may be arranged in a serial order and starting from any pipe, every ‘n’ th pipe be
        selected till the requisite number is obtained ‘n’ being the integral part of N/n where N is
        the lot size and ‘n’ is the sample size.


4.6.4   All the pipes selected, as per clause 4.7.2 shall be inspected for dimensional
        requirements, finish and deviation from straight.


4.6.5   The number of pipes to be tested for tests under clause 4.6.3 shall be in accordance
        with column 4 of Table 22 of IS: 458. These pipes shall be selected from pipes that
        have satisfied the requirements mentioned in clause 4.7.4.




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4.6.6   A lot shall be considered as conforming to the requirements of IS 458 if the following
        conditions are satisfied.


(a)     The number of defective pipes (those not satisfying one or more of the requirements for
        dimensions, finish and deviation from straight) shall not be more than the permissible
        number given in column 3 of Table 22 of IS: 458.


(b)     All the pipes tested for various tests as per clause 4.6 shall satisfy corresponding
        requirements of the tests. The Contractor shall inform the Engineer-in-Charge about the
        lot of pipes to be brought at site. The pipe brought as specified in IS code 458 (Revised
        2003). From the lot brought on site any one pipe at random will be selected and will be
        broken and quality of concrete and quantity of steel (reinforcement) will be checked. If
        any deviation i.e. poor quality of concrete or less steel is found, the whole lot of pipes
        will be rejected and the Contractor shall remove the same from the site. No payment
        shall be made for pipe, which is broken for checking and clearing, rejected lot of pipes
        from the site.


(c)     In case the number of pipes not satisfying requirements of any one or more tests, one
        or two further sample of same size shall be selected and tested for the test or tests in
        which failure has occurred. All these pipes shall satisfy the corresponding requirements
        of the test.
4.6.7. Arrangement for inspection, testing & acceptance of pipes, collars at factory will be
        made by owner / consultant. Pipes & collars confirming to I.S. specification and
        accepted by owner / consultant only shall be transported to site of work.


4.7     Marking


        The following information shall be clearly marked on each pipe:


        (a)   Internal diameter of pipe.
        (b)   Class of pipe.
        (c)   Date of manufacture, and
        (d)   Name of manufacturer or his registered trademark or both.


        All pipes and fittings shall be manufactured as per ISI Code.


LAYING & JOINTING


        The availability of space on sewer alignment are limited & the tenderer will have to
        arrange open space for storage of pipes and materials, T & P, labour establishment by



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       him self. The employee may assist by giving letters but no responsibility will be taken by
       employer.


       Reasonable care shall be exercised in loading, transporting and unloading concrete
       pipes. Handling shall be such as to avoid impact. Gradual unloading by inclined planks
       or by chain pulley block is recommended.


       Jointing of RCC pipes shall be done as per the requirements of following specifications
       and as per the relevant IS. The type of joints shall be as per ‘Data Sheet - A’. After
       jointing extraneous material if any, shall be removed from the inside of the pipe and
       newly made joints shall be thoroughly cured. In case, rubber sealing rings are used for
       jointing, these shall conform to IS 5382 and shall be of such type as mentioned in’ Data
       Sheet - A’.


1.     Spigot and Socket Joint (Rigid)


       The spigot of each pipe shall be slipped home well into the socket of the pipe previously
       laid adjusted in the correct position. The opening of the joint shall be filled with stiff
       mixture of cement mortar in the proportion as specified in Data Sheet - A, which shall
       be rammed with caulking tool.


2.     Collar Joint (Rigid)


       After laying the RCC pipes at proper alignment and gradient their abutting faces shall
       be coated with hot bitumen in liquid condition by means of a brush. The wedge-shaped
       groove in the end of the pipe shall then be filled with a tarred gasket in one length for
       each joint. The collar shall then be slipped over the end of the pipe and the next pipe
       butted well against the tarred gasket by suitable appliances approved by Owner /
       Engineer In-Charge so as to thoroughly compress the tarred gasket into the grooves.
       Care should be taken that the concentricity of the pipes and levels are not disturbed
       during this operation. The collar shall then be placed symmetrically over the end of the
       two pipes and the space between the inside of the collar and the outside of the pipe
       filled with mixture of cement and sand as specified in Data Sheet - A, tempered with just
       sufficient water to have a consistency of the semi dry conditions well packed and
       thoroughly rammed with caulking tools. The joints shall be finished off with a filled
       sloping at 45° to the side of the pipe. The finished joints shall be protected and cured
       thoroughly as directed by Owner / Engineer In-Charge. Any plastic solution or cement
       mortar that may have been squeezed into the inside of the pipe shall be removed so as
       to leave the inside of the pipe perfectly clean.


3.     Spigot and Socket Joint (Semi-Flexible)

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       This joint is composed of specially shaped spigot and socket ends on the RCC pipes. A
       rubber ring as specified in Data Sheet - A, shall be lubricated and then placed on the
       spigot, which is forced into the socket of the pipe previously laid. This compresses the
       rubber ring as it rolls into the annular space formed between the two surfaces of the
       spigot and socket, stiff mixture of cement and mortar as specified in Data Sheet - A,
       shall then be filled into the remaining annular space and rammed with a caulking tool.


4.     Collar Joint (Semi-Flexible)


       This joint is made up of a loose collar, which covers two specially shaped pipe ends.
       Each end shall be fitted with a rubber ring as specified as per relevant IS code, which
       when compressed between the spigot and collar, seal the joints Stiff mixture of cement
       mortar as specified in Data Sheet - A, shall then be filled into the remaining annular
       space and rammed with a caulking tool.


5.     Spigot and Socket Joint (Flexible)


       The RCC pipe with the rubber ring accurately positioned on the spigot shall be pushed
       well home into the socket of the previously laid pipes shall be of spigot and socket type
       and rubber rings as specified in Data Sheet - A, shall be used, and the manufactures
       instructions shall be used, and the manufacturers instructions shall be deemed to form
       a part of this specifications. The rubber rings shall be lubricated before making the joint
       and the lubricant shall be soft soap water or an approved lubricate supplied by the
       manufacturer.


6.     Flush Joint (Internal)


       This joint shall be generally used for culvert pipe of 60 cm diameter and over. The ends
       of the pipes are specially shaped to form a self centering joint with an internal jointing
       spaces 1.3-cm wide. The finished joint is flush, with both inside and outside with the
       pipe wall. The jointing space is filled with cement mortar in the proportion as specified in
       Data Sheet - A, mixed sufficiently dry to remain in position when forced with a trowel or
       rammer.


7.     Flush Joint (External)


       This joint is suitable for pipes which are too small for jointing from inside. This joint is
       composed of specially shaped pipe ends. Each end shall be butted against each other
       and adjusted in correct position. The jointing space shall then be filled with cement
       mortar as specified in Data Sheet - A, sufficiently dry and finished off flush. Great care

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       shall be taken to ensure that the projecting ends are not damaged as no repairs can be
       readily affected from inside the pipe.


8.     Cleaning Of Pipes


       As soon as a stretch of RCC pipes has been laid complete from manhole to manhole or
       for a stretch as directed by Owner / Engineer In-Charge, contractor shall run through
       the pipes both backwards and forwards a double disc or solid or closed cylinder 75 mm
       less in diameter than the internal diameter of pipes. The open end of an incomplete
       stretch of pipeline shall be securely closed as may be directed by Owner / Engineer In-
       Charge to prevent entry of mud or slit etc.


       If as a result of the removal of any obstruction Owner / Engineer In-Charge considers
       that damages may have been caused to the pipelines, he shall be entitled to order the
       stretch to be tested immediately. If during such test prove unsatisfactory contractor shall
       amend the work and carry out such further tests as area required by Owner / Engineer
       In-Charge.


       It shall also be ascertained by Contractor that each stretch from manhole to manhole or
       the stretch as directed by Engineer In-Charge is absolutely clear and without any
       obstruction by means of visual examination of the interior of the pipe line suitably
       enlightened by projected sunlight or otherwise.


       Testing At Work Site


       After laying and jointing of RCC pipes is completed the pipe line shall be tested at work
       site as per the following specifications and as directed by Owner / Engineer In-Charge.
       All equipment for testing at work site shall be supplied and erected by contractor and
       shall be rectified by him to the full satisfaction of Owner / Engineer In-Charge.


       The water required for the flow test shall have to be arranged by the contractor at his
       own cost. The entire section of the pipe line laid by the contractor shall be tested by
       flow test from manhole to manhole or as directed by Engineer in charge. Any earth,
       mud, rubbish, dummy walls etc., in the pipeline or manhole be removed and whole
       pipeline shall be cleaned before testing is given. In side vata etc., be rectified and
       completed with all respect before given flow test. The water shall be poured in first
       manhole and it should run smoothly from manhole to manhole up to last manhole
       without any pounding. There shall not be accumulation of water inside the pipeline. If it
       accumulates in certain stretch, the laid pipeline shall have to be removed and shall be
       laid again in gradient as specified. If this being not attended the payment for the same
       stretch of pipeline shall not be paid and shall be recovered in the final bill. Necessary

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         certificate for cleaning of pipeline in all respects shall be given in writing before
         hydraulic flow test is given on site by the contractor.
      Providing and construction Sewer manholes, scraper manholes and unit house connection
      chamber, as per the type design in brick masonary in C.M. 1:3 and inside & outside
      plastering in C.M. 1:3 necessary coping in R.C.C.M. 200 fixing C.I,. Steps and fixing
      manhole frame and covers (Including supply of manhole frame and covers) over manholes
      and house connection chambers and fixing Manhole covers           (Including supplying of
      manhole covers) over scraper manhole etc. complete, providing and fixing safety chain
      wherever necessary as per the stipulations in the type design complete including
      excavation.


Sewer Manholes


1.       Location


         Manholes shall be constructed at places approved by the Employer’s Representative.

         In case of manhole along the river or drain the top of Manhole shall be raised to
         safe height above the highest flood level of river /drain as directed by E.I.C.



2.       Excavation


         Excavation, shoring, dewatering etc. for the pits of manholes, laying of pipes and
         fittings/specials shall be done in accordance with Employer’s Requirements described
         elsewhere in the document.


3.       Plain Cement Concrete


         The water, sand, cement & stone aggregate of 40 mm nominal size shall be used of
         approved quality as er standard specification in I.S. 456. Detail specification of
         materials as given in General Technical Specification shall be observed.


3.1      Workmanship: Before starting concrete the bed of foundation trenches shall be
         cleared of all loose materials, leveled, watered and rammed as directed.


3.2      Mixing: The concrete shall be mixed in a mechanical mixer at the site of work. Hand
         mixing may however be allowed for smaller quality of work if approved by the Engineer-
         in-charge. When hand mixing is permitted by the Engineer-in-charge in case of
         breakdown of machineries and in the interest of the work, it shall be carried out on a

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       water tight platform and shall be taken to ensure that mixing is continued until the mass
       is uniform in colour and consistency. However, in such cases 10% more cement than
       otherwise required shall have to be used without any extra cost. The mixing in
       mechanical mixer shall be done for a period of 1.5 to 2 minutes. The quantity of water
       shall be just sufficient to produce a dense concrete of required workability for the
       purpose.


3.3    Transporting and placing the concrete: The concrete shall be handed from the
       place of mixing to the final position in not more than 15 minutes by the method as
       directed and shall be placed into the final position, compacted and finished within 30
       minutes of mixing with water i.e. before the setting commences.


       The concrete shall be laid in layers of 15 cms. to 20 cms.


3.4    Compacting: The concrete shall be rammed rapidly with heavy iron rammers to get the
       required compaction and to allow all the interstices to be filled with mortar.


3.5    Curing: After the final set, concrete shall be kept continuously wet, if required by
       ponding for a period of not less than 7 days from the date of placement.

4.     Bricks


       Bricks used for construction of manholes shall conform to the relevant Indian
       Standards. They shall be sound, hard, and homogeneous in texture, well burnt in kiln
       without being vitrified, table moulded, deep red, cherry or copper coloured, of regular
       shape and size and shall have sharp and square and parallel faces. The bricks shall be
       free from pores, chips, flaws or humps of any kind. Bricks containing ungrounded
       particles and/or which absorb water more than 1/6th of their weight when soaked in
       water for twenty-four hours shall be rejected. Over burnt or under burnt bricks shall be
       liable to rejection. The bricks shall give a clear ringing sound when struck and shall
       have a minimum crushing strength of 50 kg/sq.cm. Unless otherwise noted in drawings.
       The class and quality requirements of bricks shall be as laid down in IS: 1077.


       The size of the brick shall be 23.0 x 11.5 x 7.5 cm. unless otherwise specified; but
       tolerance upto ± 3 mm in each direction shall be permitted. Only full size brick shall be
       used for masonry work. Brickbats shall be used only with the permission of Employer’s
       Representative to make up required wall length or for bonding. Sample bricks shall be
       submitted to the Employer’s Representative for approval and bricks supplied shall
       conform to approved samples. If required by the Employer’s Representative, brick
       sample shall be tested as per IS: 3495 by Contractor.              Bricks rejected by the
       Employer’s Representative shall be removed from the Site within 24 hours.


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5.     Cement Mortar


       Mortar for brick masonry shall be prepared as per IS: 2250. Manholes shall be
       constructed in brick masonry with cement mortar (1:3) unless otherwise specified.
       Gauge boxes for sand shall be of such dimensions that one bag containing 50 kg. of
       cement forms one unit. The sand shall be free from clay, shale, loam, alkali and organic
       matter and shall be of sound, hard, clean and durable particles. Sand shall be as
       approved by the Employer’s Representative. If required by the Employer’s
       Representative sand shall be thoroughly washed till it is free of any contamination.


       For preparing cement mortar, the ingredients shall first be mixed thoroughly in dry
       conditions. Water shall then be added and mixing continued to give a uniform mix of
       required consistency. Cement mortar shall be used within 25 minutes of mixing. Mortar
       left unused in the specified period shall be rejected.


       The Contractor shall arrange for tests on mortar samples if so required by Employer’s
       Representative. Retempering of mortar shall not be permitted.



6.     Brick Masonry


       All bricks shall be thoroughly soaked in clean water for at least one hour immediately
       before being laid. The cement mortar for brick masonry work of manholes shall be in
       the proportion specified in drawing. Brick work 230 mm thick and over shall be laid in
       English Bond unless otherwise specified. 115 mm thick brick work shall be laid with
       stretchers. For laying bricks, a layer of mortar shall be spread over the full width of
       suitable length of the lower course. Each brick shall be pressed into the mortar and
       shoved into final position so as to embed the brick fully in mortar. Bricks shall be laid
       with frogs uppermost.


       All brickwork shall be in plumb and square/ circular unless otherwise shown on drawing
       and true to dimensions shown. Vertical joints in alternate courses shall come directly
       one over the other and be in line. Horizontal courses shall be levelled. The thickness of
       brick courses shall be kept uniform. For walls of thickness greater than 230 mm both
       faces shall be kept in vertical planes unless otherwise specified. All interconnected
       brickwork shall be carried out at nearly one level (so that there is uniform distribution of
       pressure on the supporting structure) and no portion of the work shall be left more than
       one course lower than the adjacent work. Where this is not possible, the work shall be
       raked back according to bond (and not saw toothed) at an angle not exceeding 45
       degrees. But in no case the level difference between adjoining walls shall exceed 1.25


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       M. Workmanship shall conform to IS: 2212.


       Brick shall be so laid that all joints are well filled with mortar. The thickness of joints
       shall not be less than 6 mm and not more than 10 mm. The face joints shall be raked to
       a minimum depth of 12 mm by raking tools daily during the progress of work when the
       mortar is still green, so as to provide a proper key for the plastering to be done. When
       plastering is not required to be done, the joints shall be uniform in thickness and be
       struck flush and finished at the time of laying. The face of brickwork shall be cleaned
       daily and all mortar droppings removed. The surface of each course shall be thoroughly
       cleaned of all dirt before another course is laid on top. If mortar in the lower courses has
       begun to set, the joints shall be raked out to a depth of 12 mm before another course is
       laid.


7.     Cement Plaster


       All joints in masonry shall be raked to a depth of 12 mm with hooked tool made for the
       purpose when the mortar is still green and in any case within 48 hours of its laying. The
       surface to be rendered shall be washed with fresh clean water free from all dirt, loose
       material, grease etc. and thoroughly wetted for 6 hours before plastering work is
       commenced. Concrete surfaces to be rendered will however be kept dry. The wall
       should not be too wet but only damp at the time of plastering. The damping shall be
       uniform to get uniform bond between the plaster and the wall.


       The proportion of the cement mortar shall be as approved on relevant drawings.
       Cement shall be mixed thoroughly in dry condition and then just enough water added to
       obtain a workable consistency. The quality of water, sand and cement shall be as per
       relevant I.S. The mortar thus mixed shall be used immediately and in no case shall the
       mortar be allowed to remain for more than 25 minutes after mixing with water.


       Curing of plaster shall be started as soon as the applied plaster has hardened enough
       so as not to be damaged. Curing shall be done by continuously applying water in a fine
       spray and shall be carried out for at least 7 days.


       Plastering shall be done on inner face of brick masonry in cement mortar (1:3) and 20
       mm thick unless otherwise specified.
       12 mm thick plastering in C.M. 1:3 shall be done outer face of brick masonary of
       chambers in C.M. 1:3.
       Plastering work shall be carried out in two layers, to the inner face the first layer being
       14 mm thick and the second layer being 6 mm thick. The first layer shall be dashed
       against the prepared surface with a trowel to obtain an even surface. The second layer


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         shall then be applied and finished leaving an even and uniform surface, trowel finished
         unless otherwise approved by the Employer’s Representative.



8.        Cement Concrete Channel


         The channel for the manhole shall be constructed in cement concrete of M15 grade.
         Both sides of the channel shall be taken up to the level of the crown of the outgoing
         sewer. They shall be benched up in concrete and rendered in cement mortar (1:1) of 20
         mm thickness and formed to a slope of 1 in 12 towards the channel.



9.       Pipe Entering or Leaving Manhole


         Whenever a pipe enters or leaves a manhole, bricks on edge must be cut to a proper
         form and laid around the upper end of the pipe so as to form an arch. All around the
         pipes, there shall be a joint of cement mortar (1:2) 13 mm thick between it and the
         bricks.


10.       Scaffolding


         For brick work in M.H., single scaffolding shall be permitted. In such cases, the inner
         end of the horizontal scaffolding pole shall rest in a hole provided only in the header
         course for the purpose. Only one header for each pole shall be left out. Such holes for
         scaffolding shall, however, not are allowed in pillars/columns less than one meter in
         width, or immediately near the skew backs of arches. The holes left in masonary works
         for scaffolding purpose shall be filled and made good before plastering.


11. Precast Manhole Frame & cover shall be fixed on manhole in RCC M 20 as provided in a
      drawing.


12. Deformed / TMT bars confirming to relevant IS of grade Fe 415 shall be used with RCC
      work for fixing M.H. frame & cover on M.H.


13. C.I. Steps:


         The steps as per detail specification shall be fixed in the fashion narrated in drawing.


         Cast iron steps shall be as per IS: 5455. The steps shall be of grey cast iron of grade 15
         as per IS: 210. The steps shall be clean, well cast and they shall be free from air and



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       sand holes, cold shuts and wrappings. The portion of the step which projects from the
       wall of the manhole shall have a raised chequered design to provide an adequate non-
       slip grip. C.I. steps shall weigh not less than 4.5 kg each and shall be of 165 mm x 385
       mm overall dimensions. These steps shall be coated with a black bituminous
       composition. The coating shall be smooth and tenacious. It shall not flow when exposed
       to a temperature of 63°C and shall not be brittle as to chip of at temperature of 0 °C.


       Where the depth of invert of manhole exceeds 800 mm, steps of approved pattern shall
       be fixed in the brickwork at the interval of 300 mm vertically and staggered at 380 mm
       horizontally centre to centre.


14.    75 mm all round vata in C.M. 1:3 shall be provided at bottom of outer periphery of
       masonary work over foundation concrete as per drawing.


15.    Curing:


       All PCC, R.C.C., Brick masonary, plaster, etc. shall be kept wet for seven days. During
       this period it shall be suitably protected from all damages.




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6           GENERAL TECHNICAL SPECIFICATIONS FOR PUMPING MACHINERY

                                         AND ELECTRICAL EQUIPMENTS

1.0         SCOPE OF WORK:-

            The Specification covers Design, Procurement, Installation, Performance Testing, and
            Commissioning of Pumping machinery, Electrical equipment to receive electrical power and
            required other equipment & accessories including cables, earthling materials and lighting
            arrangement.

            All Electrical and Mechanical installations shall be of high quality, safe, durable, complete
            and fully operational including all necessary items, spares and accessories whether or not
            specified in detail. All electrical and mechanical work shall be completed in accordance with
            the regulations and standards to the satisfaction of the owners.

2.0         REGULATIONS OF CODES AND STANDARDS

            All equipments shall conform in all respects to Indian standard, code of practice for
            pumping machinery and electrical equipment installations. It shall also be in conformity
            with the current Indian electricity rules and local power supply authority for installation,
            testing and commissioning. Wherever these specifications call for a higher standard of
            material and/or workmanship than those required by act of the above regulations, then these
            specifications shall take precedence over the said regulations and standard. In general, the
            material, equipment and workmanship not covered by the above shall conform to the
            relevant standards.
            The following specifications, standards and codes are made a part of these specifications.
            All standards, tentative specifications, codes of practices referred to herein shall be the latest
            edition including all applicable official amendments and revision. In case where the
            requirements of these specifications conflict with the requirements of those referred to
            herein, these specifications shall govern.

    2.1     LIST OF APPLICABLE INDIAN STANDARD AND CODE OF PRACTICE

          SR. No.    STANDARD NO             TITLE
           1.        IS – 5                  Colors for ready mixed paints and enamels.
           2.        IS – 104                Ready mixed paint, brushing, zinc chrome, priming.
           3.        IS – 158                Ready mixed paint, brushing, bituminous, black, lead free, acid,
                                             alkali and head resisting.
           4.        IS – 325                Three phase induction motors.
           5.        IS – 335                New insulating oils.
           6.        IS – 375                Marking and arrangement for switch gear, Bus bars main
                                             connection and auxiliary wiring.
           7.        IS – 613                Specification for copper rods and bars for electrical purpose
           8.        IS – 694                PVC insulated cables for working voltage up to and including
                                             1100 V.
           9.        IS – 722                AC Electricity meters
           10.       IS – 732 (part I)       Code of practice for electrical wiring installations
           11.       IS – 807                Code of practice for design, manufacture, erection and testing
                                             (structural portion) of cranes and hoists
           12.       IS – 816                Code of practice for use of metal arc welding for general


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                                     construction in mild steel
      13.       IS – 900             Code of practice for installation and maintenance of induction
                                     motors.
      14.       IS – 1239            Mild steel tubes, tubular and other wrought steel fittings
      15.       IS – 1248 (Part I & Direct acting indicating analogue electrical measuring
                II)                  instrument and their accessories.
      16.       IS – 1271            Electrical insulation classifies by thermal stability
      17.       IS – 1520            Horizontal split casing centrifugal pump for clear, cold and
                                     fresh water
      18.       IS – 1554 (Part I & PVC insulated electrical cables (heavy duty)
                II)
      19.       IS – 1651            Stationary cells and batteries, lead acid type (with tubular
                                     positive plates)
      20.       IS – 1710            Vertical turbine pumps for clear, cold, freshwater.
      21.       IS – 1866            Insulating oil in service, code of practice for maintenance and
                                     supervision of.
      22.       IS – 2026 (Part Ito Power Transformers
                V)
      23.       IS – 2062            Steel for general structural purposes.
      24.       IS – 2071 (Part I to High voltage testing method
                Ill)
      25.       IS – 2099            Bushings for alternating voltage above 1000 V.
      26.       IS – 2121 (Part l to Conductors aid earth wire accessories for overhead power lines.
                lV)
      27.       IS – 2147            Degrees of protection provided by enclosures for low voltage
                                     switchgear and control gear
      28.       IS – 2253            Designation for types of construction and mounting
                                     arrangements of rotating electrical machines.
      29.       IS – 2309            Code of practice for the protection of buildings and allied
                                     structures against lightning.
      30.       IS – 2486 (Part I)   Metal fittings for overhead power lines with a nominal voltage
                                     greater than 1000 volts.
      31.       IS – 2544            Porcelain post insulators for systems with nominal voltage
                                     greater than 1000 volts.
      32.       IS – 2551            Danger notice plates.
      33.       IS – 2629            Recommended practice for hot dip galvanizing on iron and
                                     steel.
      34.       IS – 2633            Hot dip galvanizing
      35.       IS – 2667            Fittings for rigid steel conduits for electrical wiring.
      36.       IS – 2675            Enclosed distributions fuse boards and cutouts for voltage not
                                     exceeding 1000 volts.
      37.       IS – 2705 (Part I to Current transformers
                IV)
      38.       IS – 2834            Shunt capacitors for power systems.
      39.       IS – 3043            Code of practice for Earthing
      40.       IS – 3070 (Part I & Lightning Arrestors for AC system.
                III)
      41.       IS – 3156 (Part I & Voltage transformers
                IV)
      42.       IS – 3177            Code of practice for electric overhead traveling cranes and


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                                    gantry cranes other than steel work cranes
      43.       IS – 3427           Metal enclosed switch gear and control gear for voltage above
                                    1000 v but not exceeding 11000 v.
      44.       IS – 3452           Toggle switches
      45.       IS – 3624           Vacuum and pressure gauges
      46.       IS – 3637           Buchholz relay
      47.       IS – 3639           Fittings and accessories
      48.       IS – 3835           Aluminized steel core wire for Aluminum conductors (ACSR)
      49.       IS – 3938           Electric wire rope hoists
      50.       IS – 3961 (Part II) Recommended current ratings for cables
      51.       IS – 4029           Guide for testing three phase induction motors
      52.       IS – 4064           Switch fuse unit
      53.       IS – 4137           Code of practice for heavy duty electric overhead traveling
                                    cranes including special service machines for use in steel work.
      54.       IS – 4237           General requirements for switch gear and control for voltage
                                    not exceeding 1000 volts.
      55.       IS – 4691           Degree of protection provided by enclosures for rotating
                                    electrical machinery.
      56.       IS – 4722           Rotating electrical machines.
      57.       IS – 4728           Terminal marking and direction of rotation for rotating
                                    electrical machinery.
      58.       IS – 4759           Hot dip galvanizing
      59.       IS – 4889           Method of determination of efficiency of rotating electrical
                                    machines.
      60.       IS – 5039           Distributions pillars for voltage not exceeding 1000 v.
      61.       IS – 5082           Wrought aluminum and aluminum alloy bars, rods, tubes and
                                    sections for electrical purposes.
      62.       IS – 5216           Guide for safety procedures and practices in electrical work.
      63.       IS – 5312           Swing type Non return valve
      64.       IS – 5578           Guide for marking of insulated conductor.
      65.       IS – 5831           PVC insulation and sheath of electric cables.
      66.       IS – 6005           Code of practice for phosphating of iron and steel.
      67.       IS – 6346           Specification for PVC insulated cables for electricity supply
      68.       IS – 6362           Designation of methods of cooling of rotating electrical
                                    machine.
      69.       IS – 6474           Polyethylene insulation and sheath for electric cables
      70.       IS – 6511           Range of preferred safe working loads for cranes, lifting
                                    appliances and related excavators equipment.
      71.       IS – 6595           Horizontal centrifugal pump for clear, cold and fresh water
      72.       IS – 6600           Loading of oil immersed transformer
      73.       IS – 6792           Method for determination of Electric strength of insulating oils
      74.       IS – 6875           Control switches for voltage up to and (part I to III) including
                                    1000 V AC and1200 VDC
      75.       IS – 7098 (Part I & Cross linked polyethylene insulated PVCs Sheathed cables for
                II)                 working voltages from 3.3 KV up to and including 33 KV
      76.       IS – 7421           Bushings for </= 1000 V
      77.       IS – 7538           Three Phase squirrel cage indications motor for centrifugal
                                    pumps for agricultural application.
      78.       IS – 8061           Code of practice for design, installation and maintenance of
                                    service lines up to and including 650 v.


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      79.       IS – 8084               Inter connecting Bus bars for A.C. voltage above 1KV Up to
                                        and including 36 KV.
      80.       IS – 8130               Conductors for insulated electric cables and fixable cords.
      81.       IS – 8197               Terminal marking for electrical measuring instruments and their
                                        accessories
      82.       IS – 8309               Compression type tubular terminal ends for aluminum
                                        conductors of insulated cables.
      83.       IS – 8923               Warning symbol for dangerous voltage
      84.       IS – 9046               AC contractors of voltage above 1000 V up to and including 11
                                        KV.
      85.       IS – 9137               Code of acceptance test for CF pumps
      86.       IS – 9224               Low voltage fuses.
      87.       IS – 10001              Performance requirements for constant speed compression
                                        ignition (diesel) engines for general purposes (up to 20 KW)
      88.       IS – 10028              Code of practice for selection installation (Part I to III) and
                                        maintenance of transformers.
      89.       IS – 10418              Specification for drums of electric cables
      90.       IS – 10810              Methods for test for cables
      91.       IS – 11346              Testing of agricultural pump
      92.       IS – 12661              High voltage motor starter (D.O.L)
      93.       IS – 12672              Internal fuses and internal overpressure disconnectors for shunt
                                        capacitors
      94.    IS – 12776                 Galvanized strand for Earthing
      95.  I IS – 13095                 Wafer type butterfly valve size from 40 mm to 2000 mm
      96.    IS – 13118                 High Voltage AC circuit Breakers.
      97.    IS – 13349                 Cast iron single faced thimble mounted sluice gates
      98.    IS – 13947      (Part I to Low voltage switchgear and control gear
             V)
      99.    IS – 14846                 Non rising stem type sluice valve size from 50 mm to 1200 mm
      100.   IS – SP: 30-1984           National Electrical code.

3.0    MANUFACTURERS
       The contractor will have to procure the equipments and accessories from approved vendors
       only for quality standards and performance. List of approved vendor is attached herewith.
       This is a comprehensive list of approved vendor, if any item is missing in approved vendor
       list for efficient and satisfactory operation of the system the contractor shall get approval of
       make from the client before procurement.

4.0    INSPECTION AND TESTING

       Inspection and testing shall be done by the representative of client or third party inspecting
       agency or PMC agency at manufacture’s work at all reasonable times during manufacture of
       items included in this contract. Performance Tests on site of completed works shall be
       performed as per IS/CODE OF PRACTICE of the respective equipment.
       While testing any machineries/equipments at manufacturer’s/contractor’s place the owner or
       third party inspecting agency shall reserve the right to check and ask calibration certificates
       of all the measuring devices.
       The contractor shall provide all necessary instruments and labor for testing and shall make
       adequate records of test procedures and readings and shall repeat any tests requested by third
       party inspecting agency and shall provide test certificates signed by authorized person. Such
       test certificates shall cover all tests.

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       If tests fail to demonstrate the satisfactory nature of the installation or any part thereof then
       no claims for the extra cost of modifications, replacements or retesting will be considered.
       The owner decision as to what constitutes a satisfactory test shall be final.
       The above general requirements as to testing shall be read in conjunction with any particular
       requirements specified elsewhere.
       All materials, components and equipments covered in this specification shall be procured,
       manufactured erected, commissioned and tested at all the stage as per comprehensive quality
       assurance programme.
       This is however, not intended to form a comprehensive programme as it is the contractor’s
       responsibility to draw up and implement such programme duly approved by the owner. The
       detailed quality plans for manufacture and field activities should be drawn up by the
       Tenderer separately in the prescribed format and will be submitted to owner for his
       approval.
       All material used or supplied shall be backed up by valid material certificate and test reports.
       These certificates and reports shall indicate the hit numbers or other such acceptable
       identification numbers of the material they purport to certify. The material should also have
       the identification details stamped on it.
       No negative tolerance to the guaranteed efficiency shall be acceptable. If guaranteed
       efficiencies shall not be achieved during the test at shop then pump and motor shall be
       rejected. No extra cost shall be paid by client for new manufacturing of pump & motor.

 5.0   PAINTING

       Equipments shall first be cleaned and given two coats of zinc base primer and then it shall
       be coated with three coats of approved shade of paints. The coating shall be uniform and
       smooth and shall adhere to the entire surface.
       Parts may be cleaned but surface defects may not be filled in before testing at the
       manufacturer’s works. Parts subject to hydraulic test shall be tested before any surface
       treatment, after test, all surfaces shall be thoroughly cleaned and dried out. If necessary by
       washing with an approved de-watering fluid prior to surface treatment. Except where the
       specification provides to the contrary all painting materials shall be applied in strict
       accordance with paint manufacturer’s instructions.
       All protective coatings shall be suitable for use in warm humid climates. All primers, under
       coats and finishes shall be applied by brush or airless spray, except where otherwise
       specified. Consecutive coats shall be in distinct but appropriate shades. All paints shall be
       supplies from the store to the painters, ready for application and addition of thinners or any
       other material shall be prohibited.

 6.0   PACKAGING AND PRESERVATION

       Each spares shall be clearly marked and labeled on the out side of packing with its
       description. When, more than one spare part is packed in a single case, a general description
       of the contents shall be shown on the out side of such case and a detailed list enclosed. All
       cases, containers and other packages must be suitably marked and numbered for the
       purposes of identification.
       All cases, containers or packages are liable to be opened for such examination as may be
       found reasonable by the engineer.
       In case of equipment supplied with grease/lubricants from imported origin, the supplier shall
       clearly indicate the Indigenous equivalent of the grease/lubricant and source of supply so as
       to enable to owner to procure these items from indigenous sources. Necessary initial filling
       of lubricating oil, grease etc. shall be arranged by the contractors with no extra cost to
       owner.


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 7.0   COMPLETION CERTIFICATE

       On completion of the electrical installation (or an extension to an installation) a certificate
       shall be furnished by the contractor countersigned by the licensed supervisor, under whose
       direct supervision the installation was carried out. This certificate shall be in the prescribed
       form as required by the local authority. The contractor shall be responsible for getting the
       installation inspected and approved by the local concerned authorities.

 8.0   SPARE PARTS

       The tenderer shall indicate and include, in the supply all the necessary commissioning spares
       and recommended spares as per manufacturer’s recommendation. The spare ordered
       by/owner shall be delivered at the site at agreed delivery schedule.

 8.1   COMMISSIONING SPARES

       It will be the responsibility of the contractor to draw and furnish a list of all commissioning
       spares required for successful commissioning of the equipment covered under the contract.
       Such list shall be furnished by the contractor. The commissioning spares will be so
       identified as to allow the trial operation to not suffer for want of commissioning spares. The
       identification of commissioning spare will not in any way relieve the vendor from any of its
       responsibilities of satisfactory performance under the provisions of other condition of
       contract. All the commissioning spares shall be deemed to include in scope of the contractor
       as a part of the respective equipment package at no extra cost to owner.
       All such identified spares shall be supplied by contractor at least two months before the
       schedule date of commencement of trial operation of the respective package. Such spare
       shall be received and stored by erection contractor at the project site and utilized when
       required.

 8.2   RECOMMENDED SPARES

       In addition to the spares mentioned above, the tenderer shall also indicate in the schedule of
       recommended list of spare parts, his recommended list of spares with unit price. The owner
       reserves the right to buy any or all the recommended spare parts.
       In case some of the spare parts become inapplicable due to change in design/engineering
       agreed by the owner, the owner reserves the right to procure some other spares whose prices
       are already available in the initial offer in lieu of such not applicable spares subject to the
       condition that the total amount of the initial order remains the same.

 9.0   TOOLS, TEST AND SAFETY EQUIPMENTS

       The contractor will have to provide the Tools, test and safety equipments as per the given
       list.




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7      OPERATION AND MAINTENANCE
       The contractor will be responsible for smooth and satisfactory operation and maintenance of
       the Solar based Desalination plat, Partial water treatment plant, office building, laboratory,
       staff quarters, all sumps, Intake well, pumping machinery with all electrical equipment
       including all spares, RCC Disposable pipe line etc on round the clock basis for a period of
       Sixty (60 calendar months) from the date of completion of trial run of 6 month. The GMDC
       will provide only Electricity as free and all balance tools, tackles, consumables and spares
       shall be arranged by the contractor.

       More specifically, the contractor will be responsible for the following:-

1.     To operate and maintain the water treatment plants, instruments and equipments        in
       accordance with the aim and purpose of treatment. The plant & equipments covered under
       the above contract will be totally attended to, by the contractor including any "Trouble
       shooting" to ensure smooth and trouble free operation.

2.     The contractor will monitor the performance of the water treatment plants, conduct the
       analysis of the inlet water and water quality after treatment. Contractor shall initiate and
       take adequate actions to ensure smooth and satisfactory performance/running of the plants
       on a 24 hours/round the clock basis.

3.     The contractor shall prepare and implement an effective plant maintenance programme in
       consultation with GMDC. It is an absolutely contractor's responsibility to look after all
               sorts of maintenance whether preventive or breakdown.

4.     The contractor will determine operating parameters, select settlings (chemical dosages
       etc.) And generally optimize the process, and working of the treatment plant, pumping
       machinery. Excessive chemical dozing i.e. doze more than normal should be avoided.

5.     The contractor shall provide chemicals such as alum, PAC/PEC, acid, as per requirement for
       smooth O&M of the project. All other consumables (except above three chemicals) like Oil,
       Grease, and Laboratory reagents, all types of minor and major spares shall be in scope of
       supply of contractor. All minor/major break down/repairs/replacement of any equipment
       shall also be in the scope of the contractor.

6.   The contractor will be responsible for keeping up-to-date record of documents     including
     History Card for equipments and maintaining every day log book relating to various analyses
     performed.

     The contractor shall maintain and update logbook, in which details of operational parameters
     are recorded in every shift and at regular internal say hourly or as decided mutually.

7.   The contractor will prepare and submit a daily report of plant and pumping machinery
     performance and will assist the GMDC in preparing the necessary documents for their purpose
     and records.

8.   The contractor will be responsible to carry out day-to-day as well as periodic maintenance,
     necessary to ensure smooth and efficient performance/running of all   equipments/



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      instruments comprising the raw water treatment plant, pumping machinery, electrical
      installment, civil works, wire fencing, internal road.

9.    The contractor shall use available laboratory equipments i.e. turbidity meter, testing kit etc. for
      the testing various parameters relating to treatment plants.

10.   The contractor shall have to issue identity cards with photographs to all the staff employed for
      Operation & Maintenance.

SPECIAL NOTE:

[1] The contractor will employ minimum following staff for operation and maintenance for
          Treatment plant.

      Sr. No.    Man Power                  Experience          No       Qualification
         1    Manager                  Experience of O&M of     1 B.E. civil / Mech/ Elect.
                                         WTP & pumping
                                       machinery for at least 2
                                               years
         2    Chemist                 Experience of one year as 1             B.Sc
                                         chemist in testing
         3    Computer Operator                                 1   Having knowledge of
                                                                           computer
         4    Electric operator                                 1 I.T.I. (Electrician course)
         5    Fitters                                           1     I.T.I. Fitter course

        Additional staff required for efficient and smooth O&M of the plant shall have to be
        deployed as per requirement without any extra work. Relaxation in qualification and number
        of staff shall not be allowed. The above staff shall be distributed in shift as per mutual
        agreement between contractor and GMDC. As per agreement the no. of staff in each shift
        should always remain present otherwise penalty towards absence of any staff shall be levied
        and recovered from the contractor. The          penalty shall be decided by the GM. The
        arrangement of reliever for weekly off/holiday etc. shall be made by the contractor.
        Absence on any ground like weekly off or holiday shall not be considered. The presence
        of staff in each shift should be marked in muster to be maintained at office of shift in-
        charge. The contractor's staff must mark their presence in this muster. The contractor may
        maintain a separate register for his own purpose.

2.      The staff of contractor will always remain in contact with the In-charge of the GMDC and
        follow their instructions.

3.      The GMDC will not provide any furniture etc. to the staff of the contractor.

4.      Unsatisfactory and inefficient running of the plant and pumping machinery supported by the
        reasons which are under control of contractor will be highly objected. In such cases decision
        of GMDC will be final and binding to the contractor.

5.      The quality of treated water shall be as required. If on any ground, the quality of treated
        water is not achieved contractor shall be penalized @ Rs.500/Hr. for first six hours. After six
        hours penalty shall be rated Rs. 1000/ hr. If it is not restored within 12 hrs the penalty will
        be Rs. 1500 per hr. The period for penalty shall be considered from the time quality is
        deteriorated still it is resumed to the above acceptable values. Over and above the penalty,

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       the cost of chemical consumed during this period shall also be recovered from the
       contractor.

6.     It is required that at least once in every two months a technical expert of the contractor will
       visit the plant and will suggest if required, to improve the efficiency and working of the
       plant. The visit must be recorded at GMDC's document.

7.     Contractor will comply with all safety rules and regulations and all inter disciplinary
       measures as followed by the GMDC.

8.     The GMDC will not be responsible for any accident/injury to the staff of the contractor.
       Further the GMDC will not provide any insurance or medical facility to the staff of
       contractor.

9.     All Central/State Government/Semi-Government/Local Body's Rules and Regulations
       pertaining to this contract shall be followed and observed by the contractor without any
       extra cost to the GMDC.

10.    No accommodation / guest house/transportation facility will be provided by the GMDC to
       the contractor.

11.    The duration of contract shall be five years from the date of completion of Trial Run of
       Plant. The same can be extended for the further period if GMDC and the Bidder desires.
       However GMDC reserves the right to terminate the contract at any time by giving one
       months notice to the contractor.

12.    The contractor should employ all the staff before commencement of Operation &
       Maintenance.

13.    The contractor will provide the necessary tools and tackles required for day to day
       maintenance.

14.    The O&M Work shall include the supply of all tools and tackles as well as minor and
       major spares. All consumables e.g. Alum, and Polyelectrolyte, acid etc shall be
       supplied by the contractor at the rate quoted by the contractor. All minor and major
       break down and repair/replacement of any equipment/instrument shall be in scope
       of contractor.

15.    The scope of work also includes cleaning of complete WTP plant area including floor,
       railing, door, windows, light fixtures and ceiling etc. similarly minimum 5 mts. from the
       construction boundary in the outside of the plant area shall also be cleaned and maintain by
       the contractor. The contractor will provide the necessary tools and tackles required for
       day to day maintenance.

16.    The Contractor will handle and dispose the sludge to a specified area suggested by GMDC
       at about 5 km of lead from source of generation. Vehicle for sludge disposal shall be
       provided by owner. Maintenance of vehicle shall be under scope of contract




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8                               LIGHTING SYSTEM


       SCOPE OF WORK:

       This specification covers the Design, manufacture, supply, delivery, installation, testing
       and commissioning of Lighting System for the entire site of solar based Desalination
       plant, Partial WTP, all sumps office building, etc.

       CODES AND STANDARDS

       The design, manufacture, testing, erection and performance of lighting system shall
       comply with all currently applicable standards, regulations and safety codes in the
       locality where the equipment will be installed.

       General Requirement:

       This scope covers supply, installation of all the materials necessary for plant area
       including all buildings complete lighting system. The type of lighting fixtures and
       receptacles, illuminating level and approximate quantity required shall be generally as
       per design criteria.

       It shall be the responsibility of the contractor on award of contract to work out complete
       detailed requirement of lighting and receptacle system for the whole plant including area
       lighting as per specifications and accordingly procure and install them. The lighting
       system includes the following:

       Lighting fixtures complete with lamps and accessories
       Light control switches, receptacle unit with control switch, lighting wires conducts and
       other similar items
       Lighting fixture supports, street lighting poles and flood light towers.
       Lighting distribution board, Lighting panels
       Multi cone cubes for street, boundary and flood lighting.

       Lighting Layout:

       It shall be the responsibility of the contractor to work out a detailed layout for the
       complete plant in order to provide the levels of illumination as indicated below in
       IS:6665.

                 Sr. No.   AREA                           ILLUMINA
                                                          TION
                                                          LEVEL
                                                          (LUX)
                 1         Pump House                    UX
                 2         Battery Room                   150 LUX
                 3         Office/laboratory              300 LUX
                 4         Control Room                   200 LUX


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                 Sr. No.    AREA                            ILLUMINA
                                                            TION
                                                            LEVEL
                                                            (LUX)
                 5          Chemical / General Stores       150 LUX
                 6          All other indoor area           100 LUX
                 7          Building entrance               100 LUX
                 8          Outdoor plant area              20 LUX
                 9          Switch yard                     10 LUX

       Lighting Fixtures:

       Lighting Fixtures shall be energy efficient type with minimum ballast loss.

a)     Luminaries shall be designed for continuous trouble-free operation without reduction in
       lamp life or without deterioration of materials and internal wiring. Outdoor fittings shall
       be weatherproof and rainproof type.

b)     The Luminaries shall be designed so as to facilitate easy maintenance, including
       cleaning, replacement of lamps/starters etc.

c)     Connections between different components shall be made in such a way that they will
       not work loose by small vibration.

d)     For each type of Luminaries the Contractor shall furnish the utilisation factor tables to
       indicate the proportion of the light emitted by the bare lamps, which falls on the working
       plane.

e)     All Luminaries shall be supplied complete with lamps suitable for operation on a supply
       voltage and the variation in supply voltage, frequency and combined voltage and
       frequency of ±10%, ±5% and ±10% respectively.

f)     The Luminaries and accessories shall be designed to have low temperature rise. The
       temperature rise above the ambient temperature shall be as indicated in the relevant
       Standards.

g)     Fluorescent type, mercury vapour and sodium vapour type Luminaries shall be complete
       with accessories like lamps, ballasts, power factor improvement capacitors, starters, re-
       wirable fuse and fuse base. These shall be mounted as far as possible in the luminaire
       housing only. If these cannot be accommodated integral with the Luminaries then a
       separate metal enclosed control gear box shall be included to accommodate the control
       accessories together with a terminal block suitable for loop-in, loop-out connections.
       Outdoor type fixtures shall be provided with outdoor type weatherproof box.

h)     Fluorescent type Luminaries with more than one lamp shall be provided with capacitors
       connected in lead-lag circuit for correction of stroboscopic effect.

i)     Each luminaire shall have a terminal block suitable for loop-in, loop-out and T-off
       connection by 250/400 V, 1 core, PVC insulated copper/aluminium conductor wires
       upto 4 sq.mm in size. In outdoor areas the termination at the luminaire shall be suitable

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       for 1100 V, PVC insulated, copper/aluminium conductor, armoured cables of sizes upto
       6 sq.mm conductor. Terminals shall be of stud or clamp type. The internal wiring
       should be completed by means of standard copper wire of minimum 1 sq.mm size and
       terminated on the terminal block. Terminal blocks shall be mounted with minimum two
       fixing screws.

j)     Mounting facility and conduit knockouts for the luminaries shall be provided.

k)     Earthing

i)     Each luminaire shall be provided with an earthing terminal suitable for connection to the
       earthing conductor of 12 SWG GI wire.

ii)    Where separate control gear box is provided for housing the accessories the same shall
       be provided with an earthing terminal suitable for connecting earthing conductor of 12
       SWG GI wire.

iii)   All metal or metal enclosed parts of the luminaire/control gearbox shall be bonded and
       connected to the earthing terminal so as to ensure satisfactory earthing continuity.

l)     Painting/Finish

i)     All surfaces of the Luminaire/Control gear box housing accessories shall be thoroughly
       cleaned and degreased. It shall be free from scale, rust, sharp edges and burrs.

ii)    When enamel finish is specified, it shall have a minimum thickness of 2 mils for outside
       surface and 1.5 mils for inside surface. The finish shall be non-porous and free from
       blemishes, blisters and fading.

iii)   The luminaire housing shall be stove-enameled/epoxy stove-enamelled-vitreous
       enamelled or anodised as indicated under various types of fittings.

iv)    The surface shall be scratch resistant and shall show no sign of cracking or flaking when
       bent through 90 deg. over 1/2” dia. mandrel.

v)     The finish of the luminaire shall be such that no bright spots are produced either by
       direct light source or by reflection.

vi)    External control gearbox provided for housing accessories shall be painted or
       galvanised.

       Internal wiring:

       The internal wiring shall be carried out with 650/1100V grade, PVC insulated, stranded
       conductor wires. The minimum size of conductor for power circuits shall be 4 Sq.mm
       copper conductors. Control circuits shall be wired with copper conductor of atleast 1.5
       Sq.mm.

i)     Panels/boards shall be supplied completely wired, ready for the external connections at
       the terminal blocks. Wiring shall be carried out with 650/1100V grade, PVC insulated,

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       stranded copper conductors. Conductors of adequate sizes shall be used to suit the rated
       circuit current.
ii)    Engraved identification ferrules, marked to correspond with the wiring diagram shall be
       fitted at both ends of each wire.

iii)   All wiring shall be terminated on terminal blocks. Terminal blocks shall be one piece
       moulded rated 500 V, of reputed make, preferably stud type for higher current ratings
       such that wires are connected by cable-lugs and complete with nuts and washers.
       Terminals shall be adequately rated for the circuit current, the minimum rating shall be
       20 A.

iv)    Terminals for circuits with voltage exceeding 125 V shall be shrouded.

v)     Terminals shall be numbered and provided with identification strip for identification of
       the circuit.

vi)    Terminal blocks for C.T. secondary lead wires shall be provided with shorting and
       disconnecting/earthing facilities.

       Labels & Diagram Plate

a)     All door mounted equipment as well as equipment mounted inside the
       switchboard/panels shall be provided with individual labels with equipment
       designation/rating. Also the boards/panels shall be provided on the front with a label
       engraved with the designation of the board/panel.

b)     Labels shall be made of non-rusting metal, 3-ply lamicoid or engraved PVC.

c)     Inside the door of the 1-phase ways lighting panels a circuit diagram/description shall be
       fixed for reference and identification.



       Light Control Switches

a)     Light control switches of ratings and types, i.e. decorative/industrial shall be supplied as
       required. The switches shall be suitable for use on 240 V, 1 Ph, 50 Hz supply.

b)     Switches shall be of flush type for mounting behind an insulated plate or incorporated
       with a switch plate for mounting flush with the surface of wall or switch box/suitable
       enclosure. The switch box/enclosure may be recessed into or mounted on a wall as per
       the requirement of project layouts.

c)     The size of enclosure boxes shall be chosen to accommodate the number of switches to
       be installed at the particular location. The enclosures shall be 18-gauge sheet steel
       galvanised. The enclosure box shall be covered with Perspex / insulating cover. An
       enclosure intended for surface mounting shall not have holes or gaps in its sides other
       than those expressly provided for cable entry.




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       Receptacle Units

a)     Receptacle units shall consist of socket outlet with associated switch and plug. The
       socket outlet and switch or MCB shall be flush mounted within galvanised 18 gauge
       steel enclosure with insulation cover. The box may be recessed into or mounted on a
       wall as per requirements of project layouts.

b)     The receptacle units shall be suitable for 240 V, 1 ph - N, 50 Hz/415 V, 3 Ph - N, 50 Hz
       supply as required.
c)     Single phase receptacles shall be associated with a switch/MCB of same current rating
       and the receptacle shall become live only when the associated switch/MCB is in “ON”
       position.

d)     Three phase receptacles shall be associated with a TPN switch housed in the same
       enclosure. The receptacle shall become live only when the associated switch is in “ON”
       position.

e)     The plugs shall be provided with cord grips to prevent strain and damage to
       conductors/wires at connection and entry points.

       Lighting Wires

a)     The wires for wiring in lighting system shall be PVC insulated, unarmoured with
       solid/stranded copper conductors.

b)     The minimum area of conductors shall be 1.5 sq.mm. for light fittings and 5A
       Receptacles and 2.5 sq.mm for receptacles rated 15 A and above.

c)     The wires shall be coded white for phase/positive of D.C. and black for neutral/negative
       of D.C.


       Conduits

a)     Rigid steel/non-metallic conduits and their associated fittings as required shall conform
       to applicable standards. The minimum size of conduit shall be 20 mm for surface
       installation and 25 mm for concealed installation.

b)     Steel conduits shall be seamed by welding and hot dip galvanised. They shall be
       supplied in standard lengths of 5 m.

c)     Supply of conduits shall include all associated fittings like couplers, bends and tees as
       required for lighting system installation work.

       Junction Boxes

a)     Junction boxes with terminals shall be supplied for branching and terminating lighting
       cables when required for outdoor areas, 3 phase receptacles etc.




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b)     The junction boxes shall be dust and vermin proof and shall be fabricated from 14 gauge
       sheet steel and shall be complete with removable cover plate with gaskets, two earthing
       terminals each with nut, bolt and washer. Boxes shall be additionally weather proof.

c)     The boxes shall have provision for wall, column, pole or structure mounting and shall be
       provided with cable/conduit entry knockouts, terminal blocks, HRC fuses as required.

d)     The terminal blocks, with specified number of terminals, shall be mounted securely on
       brackets welded to the back sheet of the box. The terminals shall be 600 V, grade, one
       piece construction complete with terminals, insulation barriers, galvanised nuts, bolts
       and washers and provided with identification strips of PVC. The terminals shall be made
       of copper alloy and shall be of box clamp type.

e)     The boxes shall be painted with one shop coat of red oxide zinc chromate primer
       followed by a finishing coat of paint.




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9            ELECTROMAGNETIC FULL BORE TYPE FLOW METER



SCOPE

The scope includes Supply, Installation, Testing and Commissioning of Electromagnetic full
bore type flow meter with hardwares, accessories, viz. companion flanges, canopy, isolation
valve, etc. with power cables, signal and control cables.

This specification covers Supply, Installation, Testing and Commissioning of full bore
electromagnetic type flow meter with transmitter and totalizer with all required accessories.

GENERAL

    •   Flow measuring system shall consist of an electric conductor, flow computer and flow
        transmitter, digital flow indicator, integrator, totalizer and any other item required to
        complete the system.
    •   Flow transducers shall be rugged in construction and shall be suitable for continuous
        operation. Flow transducers shall have waterproof construction and shall be suitable for
        installation on underground/above ground pipelines.
    •   To avoid the effects of disturbances in the velocity profile, a straight and uninterrupted
        run, upstream as well as downstream from the location of the flow sensor shall be
        provided, as required by the flow meter manufacturer.
    •   Contractor shall finalize the exact location of flow transducers in consultation with
        engineer’s representative.
    •   The flow transmitter shall be suitable for field mounting and shall accept input from the
        flow transducer. It shall process the input signal and provide 4-20 mA DC output
        proportional to flow rate. Flow transmitters shall have LCD display to indicate
        instantaneous flow rate. The flow range shall be adjustable.
    •   Flow measurement shall not be affected by physical properties of water viz.,
        temperature, pressure, viscosity, density etc., within given limits. Contractor shall
        provide compensating electronic circuits, if required.
    •   Contractor shall construct a suitable concrete chamber enclosing flow transducer to be
        mounted on underground pipe lines. A concrete cabin shall be constructed above the
        chamber for housing the flow transmitter.
    •   The contractor shall include all the signal, control and power cable in his scope up to the
        main panel compartment.
    •   Before laying the cable at site, contractor shall first confirm the route and then lay the
        cable accordingly in presence and in consultation of client. No joint shall be acceptable
        in cable.
    •   Offered flow meter shall be calibrated at manufacturer’s work on calibration rings in
        presence of clients’ representative. It shall have accuracy at least 10 times better than
        guaranteed accuracy. Calibration certificate shall be submitted by the successful bidder.




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TESTS AND TEST CERTIFICATES

Testing and certificates

   •   Material composition and material properties certificates for electrodes shall be
       provided.
   •   Megger test for coil assembly and wet calibration shall be witnessed by client.
   •   10% of ordered quantities or one quantity of each size whichever is higher shall be
       offered for wet calibration and pressure test.
   •   Calibration test shall be carried out and test certificates shall be furnished for all wetted
       parts and complete item.

TENDER DRAWINGS

The dimensional drawings with material of construction shall be submitted by tenderer along
with their offer.

TECHNICAL PARTICULAR

        SR.
        NO.    DESCRIPTION                   PARTICULARS

        1      Principle of       working Faradays law of electromagnetic induction
               Service
        2      Size & Qty                As per requirement
        3      Range                     As per requirement
        4      Type                      Full Bore Type with integral flow
                                         transmitter
        5      Line Pressure             Max. 10 Kg/cm2
        6      Flanges                   Carbon Steel
        7      Signal out put            4-20 mA DC
        8      Time contact              1 second to 20 second adjustable
        9      Pulse out put             10 – 18000 pulses per hour
                                         a) Out put to drive external electro-
                                         magnetic counter of 12 V / 24 V DC
                                         directly
                                         b) Open collector output
                                         0.500 Hz / 1 KHz /10 KHz 5 V or 15 V
        10     Maximum load resistance 1000 Ohm
        11     Local display             3.5 Dijet LCD with built in Totalizer
        12     Ingress Protection        IP 65
        13     Flow velocity             0.25 m/sec to 5 m/sec ( 10 m/sec
                                         maximum)
        14     Accuracy                  +/- 0.5 % of actual flow at reference
                                         condition
        15     Repeatability             + or – 0.15% of span
        16     Effect     of     Ambient Less than 0.2 % per 10 degree

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               temperature
        17     Effect of power supply        Less than 0.1 % per 10 % voltage
        18     Effect of load resistance     Less than 0.1% of span per 100 Ohm
        19     Power supply                  Normal 240 Volt AC + or – 15 % 50 Hz
        20     Power consumption             Maximum 20 W
        21     Material of construction
               Liner                         Neoprene / Polyurethane
               Electrode                     SS316
               Pipe                          SS316
               Flanged                       SS316
               Coil housing                  SS
               Transmitter                   Cast Aluminum epoxy painted
        22     Digital Flow indicator &      Microprocessor based with two separate
               Integrator                    dedicated back-lit LCD/LED displays for
                                             flow indication and total flow indication. It
                                             shall accept 4 to 20 mA DC input from
                                             Transmitters. It Shall have a battery back
                                             up for flow Totalizer.




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                           LIST OF APPROVED VENDORS

        Sr. No.             Equipment                    Name of Manufacturer
         1.       Horizontal     spit     casing JYOTI LIMITED
                  centrifugal pumps              MATHER AND PLATT
                                                 KIRLOSKAR BROTHERS LIMITED
                                                 BEACON WEIR LIMITED
                                                 JOHNSON
                                                 WPIL
         2.       Horizontal     Squirrel   cage JYOTI LIMITED
                  induction motor                KIRLOSKAR ELECTRIC CO. LTD.
                                                 SIEMENS INDIA LIMITED
                                                 CROMPTON GREAVES LIMITED
                                                 GEC ALSTHOM
                                                 BHEL
         3.       Sluice Valves                  INDIAN VALVE COMPANY
                                                 KIRLOSKAR BROTHERS LIMITED
                                                 FOURESS ENGINEERING LIMITED
                                                 DURGA VALVES
                                                 R & D MULTIPLES
                                                 UPADHYAY VALVES
         4.       Butterfly valves               INDIAN VALVE COMPANY
                                                 KIRLOSKAR BROTHERS LIMITED
                                                 FOURESS ENGINEERING LIMITED
                                                 DURGA VALVES
                                                 R & D MULTIPLES
                                                 UPADHYAY VALVES
         5.       Non – return valve             INDIAN VALVE COMPANY
                                                 KIRLOSKAR BROTHERS LIMITED
                                                 FOURESS ENGINEERING LIMITED
                                                 DURGA VALVES
                                                 R & D MULTIPLES
                                                 UPADHYAY VALVES
         6.       Kinetic Air Valve              INDIAN VALVE COMPANY
                                                 KIRLOSKAR BROTHERS LIMITED
                                                 FOURESS ENGINEERING LIMITED
                                                 DURGA VALVES
                                                 R & D MULTIPLES
                                                 UPADHYAY VALVES
         7.       Sluice Gate Valve              KIRLOSKER BROTHERS LTD
                                                 INDIAN VALVE COMPANY
                                                 DURGA VALVES
                                                 JASH ENGINEERING
                                                 HAWA ENGINEERS LTD
         8.       Non clog Submersible pumps     MBH
                                                 KSB
                                                 AQUA MACHINERIES LIMITED
                                                 JYOTI LIMITED
                                                 MATHER & PLATT


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        Sr. No.             Equipment                   Name of Manufacturer
         9.       Pressure Indicator           BELLS CONTROLS LTD.
                                               GENERAL INSTRUMENTS CO.
                                               MANOMETER INDIA LTD.
                                               FORBES MARSHALL,
                                               H. GURU
        10.       Float and Board type Level TOSHNIWAL
                  measuring system             ENDRESS AND HAUSER
                                               PUNE TECHTROL
        11.       Ultrasonic/Electromagnetic   ULTRALINE
                  type flow meter              KROHNE
                                               ABB
                                               WOLTEX
                                               SHENITECH
        12.       EOT Crane & Hoist and        ACME MANUFACTURING ENGINEERS
                  Motorized chain pulley block ELECTRO MECH. ENGINEERS
                                               MALAY ENGG(DUTT)
                                               HI-TECH, EDDY CRANES
                                               W. H. BRADDY
                                               FAFCO
                                               ANUPAM
                                               JAPS
        13.       Valve Actuators              ROTORK
                                               LIMITORK
                                               AUMA INDIA
                                               ANTRIEB TECHNIK PVT. LTD
        14.       MS pipe and fittings         STEEL AUTHORITY OF INDIA LTD
                                               JINDAL
                                               TATA IRON AND STEEL CO. LTD
                                               ESSAR STEEL LTD
                                               ISPAT LTD
        15.       HDPE Pipe                    M/S. ORI - PLAST LTD
                                               (PE-80 UPTO 450 MM FOR PN-6, 180 MM
                                               FOR PN – 8, 355 MM FOR PN-10, 110 MM
                                               FOR PN-16.0)

                                                  (PE-100 UPTO 500 MM FOR PN-6 & PN –
                                                  8 & PN-10)

                                                  M/S. RELIANCE INDUSTRIES
                                                  (PE-80 UPTO 400 MM FOR PN-2.5,4,6 &
                                                  8, 315 MM FOR PN-10 & 12, 110 MM FOR
                                                  PN-16.0)

                                                  (PE-100 UPTO 400 MM FOR PN-6 & PN –
                                                  8 & PN-10, 315 MM FOR PN – 12.5 &
                                                  16.0)

                                                  M/S. JAIN IRRIGATION SYSTEMS LTD
                                                  (PE-80 UPTO 315 MM FOR PN-2.5,4,8 &

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Gujarat Mineral Development Corporation Limited



        Sr. No.             Equipment                      Name of Manufacturer
                                                  12.5, 500 MM FOR PN-6 & 10, 180 MM
                                                  FOR PN-16.0)

                                                  (PE-100 UPTO 500 MM FOR PN-6, 500
                                                  MM FOR PN – 10)

                                                  M/S. DURA LINE INDIA LTD
                                                  (PE-80 UPTO 315 MM FOR PN-2.5, 400
                                                  MM FOR PN-4 & 6, 315 MM FOR PN-10,
                                                  110 MM FOR PN-8.0, 12.5 & 16.0)

                                                  (PE-100 UPTO 400 MM FOR PN-6 & PN –
                                                  16, 315 MM FOR PN – 10.0 & 12.5)

                                                  M/S. DUTRON POLYMERS LTD
                                                  (PE-80 UPTO 630 MM FOR PN-2.5, PN-4
                                                  500 MM FOR PN-6.0)

                                                  (PE-100 UPTO 630 MM FOR PN-6 & PN –
                                                  10.0 )

                                                  M/S. PARIXIT INDUSTRIES LTD
                                                  (PE-80 UPTO 315 MM FOR PN-2.5, PN-4
                                                  1000 MM FOR PN-6.0, 180 MM FOR PN-
                                                  8.0 & PN-12.5, 450 MM FOR PN-10.0)

                                                  (PE-100 UPTO 450 MM FOR PN-6, 315
                                                  MM FOR PN – 10.0 )

        16.       Agitator/mixer/stirrer          REMI, MUMBAI
                                                  GANSONS LTD
                                                  MUMBAI STANDARD ENGG.
                                                  SCHRUTEK, MUMBAI
                                                  KUNAL ENVIRO ENGINEERS
        17.       Air blower                      KAY INTERNATIONAL
                                                  SWAM PNEUMATIC
                                                  SUZLER
        18.       Air conditioners                VOLTAS LTD
                                                  CARRIER AIRCON LTD
                                                  BLUE STAR LTD
        19.       Chlorinator                     METITO
                                                  PENWALT
        20.       Weighing scale                  AVERY
                                                  J K SCALE
                                                  ACME
                                                  AVERLAST
        21.       Centrifuge                      HUMBOLD
                                                  PENWALT
                                                  ALFA LEVEL

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        Sr. No.            Equipment                    Name of Manufacturer
        22.       Exhaust fans                    BAJAJ
                                                  CROMPTON
                                                  KHAITAN
                                                  ALMONARD
                                                  ALSTOM
                                                  HAVELLS
        23.       Tools                           TAPARIA
                                                  EVEREST
                                                  GEDOR
                                                  JHALANI
        24.       Test Equipment’s                CIE, CE, MITTOTOYO
                                                  WACO, SYSTEM, YOFUNG
                                                  MECO
                                                  KEW
                                                  ACD
        25.       TURBIDITY                       ABB
                  MEASUREMENT                     FORBES MARSHALL
                                                  FISHER ROSEMOUNT
                                                  SAKSHAM ENTERPRISES
                                                  FORBES MARSHAL
                                                  HACH INSTRUMENTS
                                                  OMEGA
        26.       PH MEASUREMENT                  ABB
                                                  FOBS MARSHALL
                                                  FISHER ROSEMOUNT
                                                  CHEMTROLS
                                                  FORBES MARSHAL
        27.       CHLORINE                        ABB
                  MEASUREMENT                     FORBES MARSHALL
                                                  FISHER ROSEMOUNT
                                                  CHEMTROLS
                                                  FORBES MARSHAL
                                                  SAKSHAM ENTERPRISES
        28.       DIGITAL FLOWMETER               ABB
                                                  HONEYWELL
                                                  FOBS MARSHALL
                                                  FISHER ROSEMOUNT
                                                  TOSHNIWAL
                                                  CHEMTROLS
                                                  FORBES MARSHAL
                                                  LIQUID CONTROL COMPANY
                                                  SHREEDHAR INSTRUMENTS
        29.       Level Indicator                 ABB
                                                  HONEYWELL
                                                  FOBS MARSHALL
                                                  CHEMTROLS
                                                  FORBES MARSHAL
                                                  FISHER ROSEMOUNT
                                                  SHREEDHAR INSTRUMENTS

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        Sr. No.             Equipment                   Name of Manufacturer
        30.       LOH & ROH                         FISHER ROSEMOUNT
                                                    YOKOGAWA
                                                    CHEMTROLS
                                                    FORBES MARSHAL
        31.       D.P.     structural    mountings, TEG
                  Lightning Arrestors, GOD, DOF, PACTAIL
                  assembly insulators etc.          OBLUM
                                                    KIRON
                                                    LAMCO
                                                    DRESCH
        32.       CT/PT UNIT for metering           AEP
                                                    KAPPA
                                                    SIEMEMS
                                                    ABB
                                                    JYOTI LTD
                                                    ASHMOR
        33.       HT Panel                          GEC ALSTOM
                                                    SIEMENS
                                                    NGEF
                                                    ABB
                                                    BHEL
                                                    HAVELLS
                                                    JYOTI LTD
        34.       Enclosure                         HAVELLS
                                                    BHEL
                                                    SIEMENS
        35.       Vacuum Circuit Breaker            SIEMENS
                                                    ALSTOM
                                                    JYOTI
                                                    BHEL
                                                    ABB
        36.       Power Transformers                KIRLOSKAR ELECT. CO. LTD.
                                                    DANKE
                                                    GEC-ALSTOM
                                                    VOLTAMP
                                                    CROMPTON AND GREAVES
                                                    T & R(TRANSFORMER & RECTIFIER)
        37.       Alternator                        SUPERNOVA
                                                    GREAVES
                                                    JEEVAN
                                                    JYOTI
        38.       Diesel Engine                     BHASKAR
                                                    VOLVO(NOT)
                                                    CATTERPILLAR(NOT)
                                                    ASHOK LEYLAND
                                                    CUMMINS (IN USA)
                                                    MITSUBISHI(IN USA)
        39.       Air Circuit Breaker               ABB
                                                    L&T
                                                    SIEMENS
                                                    C&S
                                                    SCHNEIDER
                                                    HAVELLS


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        Sr. No.             Equipment              Name of Manufacturer
        40.       Motor Control Centre (LT ELEMBICA
                  Panel)                   SUN INDUSTRIES
                                           INDUSTRIAL CONTROL
                                           JYOTI LTD
                                           POSITRONICS
                                           ALPANIPON
                                           SLIXON
                                           SWATI
                                           ABB
        41.       Starters                 SIEMENS
                  -Direct On Line          CONTROL GROUP,
                  -star/Delta              INDUSTRIAL CONTROL
                  -Auto transformer        SWATI
                                           SCHNIEDER
                                           HAVELLS
        42.       Soft Starter             ABB
                                           SIEMENS
                                           AMEE
                                           SCHNEIDER
        43.       HT cables                CCI/NICCO
                                           GLOSTER
                                           UNIVERSAL
                                           TORRENT
                                           GEMS CAB
        44.       LT Cables                CCI/NICCO
                                           AVOCAB
                                           GLOSTER
                                           UNIVERSAL
                                           TORRENT
                                           GEMS CAB
        45.       Cable glands             COMET
                                           HMI
        46.       H. T. cable Terminations RAY CHEM,
                                           XICON
                                           M SEAL
        47.       LT cable terminations    DOWELLS
                                           JOINT WELL
                                           LOTUS
        48.       Indicating meters        AEP
                                           IMP
                                           MECO
                                           RISHABH
                                           HPL
        49.       Terminal Block           ELMEX
                                           C & S (WAGO)
                                           TELEMECHANICS(NOT)
                                           WAGO
                                           CONNECT WELL


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   50.        Protective Relays                   ABB
                                                  GEC – ALSTHOM
                                                  EASUN REYROLLE
                                                  SIEMENS
                                                  L&T
                                                  CSPC
   51.        ELCB                                DATAR
                                                  INDO ASIAN
                                                  HH (NOT)
                                                  ELCON(NOT)
                                                  MDS(NOT)
                                                  STANDARD(NOT)
                                                  HAVELLS
   52.        Contactors                          L&T
                                                  C&S
                                                  SIEMENS
                                                  ALSTHOM
                                                  SCHNEIDER
   53.        Switch fuse unit                    L&T
                                                  ALSTHOM
                                                  C&S
                                                  SCHNEIDER
                                                  SIEMENS
   54.        MCCB/MPCB                           L&T
                                                  GEL
                                                  CROPTON GREEVE LTD.
                                                  INDO ASIAN
                                                  C&S
                                                  SIEMENS
                                                  HAVELLS
                                                  HPL
   55.        MCB                                 MDS(NOT)
                                                  HAVELLS
                                                  WILSON(UK)
                                                  INDO ASIAN
                                                  STANDARD(NOT)
                                                  C&S
                                                  HPL
   56.        Capacitor                           BHEL
                                                  KHAITAN (NOT CAPACITOR)
                                                  ASIAN ELECTRONICS
                                                  MADHAV CAPACITORS
                                                  NEPTUNE
                                                  ABB
                                                  HAVELLS
   57.        Bimetal overload relays             SIEMENS
                                                  L&T
                                                  MERLIN GERIN(US)
                                                  C&S

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                                            SCHNEIDER
                                            HAVELLS
   58.        Indicating lamps              CROMPTON & GREAVES
                                            VAISHANA
                                            RASS
                                            BINARY
   59.        Push button and push button L&T
              station                       SIEMENS
                                            TECHNIK
                                            BCH
                                            GE CONTROL
   60.        APFC relay                    C&S
                                            ENERCON (NOT RELAY)
                                            SIEMENS
                                            L&T
                                            DATAR
                                            ASIAN
                                            SCHNEIDER
   61.        APFC panel                    ELEMBICA
                                            SUN INDUSTRIES
                                            INDUSTRIAL CONTROL
                                            JYOTI LTD
                                            POSITRONICS
                                            ALPANIPON
                                            SLIXON
                                            SWATI
                                            ABB
   62.        Cable tray                    INDIANA
                                            SHARDA
                                            M M ENGINEERING
   63.        PVC conduits and accessories PRECISION
                                            CLIPSAL
                                            MIHIR
                                            VRAJ
                                            DUTRON
   64.        Flexible wire (FRLS)          FINOLEX
                                            ANCHOR
                                            HAVELLS
                                            RR CABLE
                                            INDO ASIAN
   65.        Maintenance free sealed lead AMCO
              acid batteries                SABNIFE
                                            STANDARD
                                            EXIDE
   66.        Battery     charger  &     dc MASS – TECH CONTROLS,
              distribution board            CHHABI ELECTRICALS PVT. LTD.,
                                            SABNIFE POWER SYSTEM,
                                            SERVILINK ENGINEERS
   67.        UPS                           HI-REL
                                            TATA LIBERT LTD.

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                                                  SUDHIR GENSET LTD.
   68.        Lighting fixture                    PHILIPS
                                                  BAJAJ
                                                  CROMPTON
                                                  INDO ASIAN
                                                  HAVELLS
                                                  HPL
   69.        Ordinary Portland Cement            ACC
                                                  L&T
                                                  AMBUJA CEMENT
                                                  LOTUS
                                                  SAURASHTRA CEMENT (ELEPHANT
                                                  BRAND)
                                                  BIRLA CEMENT
                                                  JK LAXMI
                                                  SANGHI
   70.        M.S. Plates                         STEEL AUTHORITY OF INDIA LTD.
                                                  TATA IRON & STEEL CO. LTD.
                                                  JINDAL
                                                  ESSAR STEEL LTD.
                                                  ISPAT LTD.
   71.        H.Y.S.D. Bars                       M/S. ELECTROTHERM (INDIA) LTD.
                                                  – 8 TO 20 MM (EXCEPT 18 MM)
                                                  AS PER IS-1786/1985
                                                  STEEL AUTHORITY OF INDIA LTD.
                                                  VIZAG STEEL
                                                  TATA
   72.        Welding Electodes                   ADVANI ORLEKON
                                                  ESAB
                                                  FERRO SPEED PLUS
                                                  MODI ELECTRODES, MODINAGAR
                                                  HONAVAR ELECTRODES LTD.
                                                  D & H SECHERONE ELECTRODES
                                                  PRECISION WIRES, KOLKATA
   73.        D.I. Pipes                          M/S. ELECTRO STEEL COMPANY
                                                  M/S. JINDAL SAW LTD
                                                  M/S. LANCO INDUSTRIES
                                                  M/S. ELECTROTHERM INDIA LTD
   74.        Structural Steel                    STEEL AUTHORITY OF INDIA LTD.
                                                  VIZAG STEEL
                                                  TATA




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Multi Mantech International Pvt. Ltd.             153
                                     TENDER NO: 1/CSR/MNM/2010




      GUJARAT MINERAL DEVELOPMENT
          CORPORATION LIMITED
      BID DOCUMENT              for Providing, Installing, Commissioning
              and Operations and Maintenance of Solar based
      Desalination Plant of 1(one) MLD capacity, constructing,
     O&M of Partial Water Treatment of 0.50MLD & Disposal
       Pipeline of 600mm diameter RCC Pipe at Mata no Madh
                       Lignite Mines site in Kutch District.
                                      VOLUME – II

                                           PRICE BID

Gujarat Mineral Development Corporation Limited        Consultant
(A Govt. of Gujarat Enterprise)                        Multi Mantech International Pvt. Ltd,
Corporate Social Responsibility Department             M-Square, Millennium Plaza,
“Khanji Bhavan University Ground 132, Ft. Ring Road,   Judges Bungalows Road
Vastrapur,                                             Vastrapur, Ahmedabad – 380 015
Ahmedabad – 380 052.




    Multi Mantech International Pvt. Ltd
Bid document for Providing, Installing, Commissioning and O & M of
Solar based Desalination Plant of 1 MLD capacity at Lignite Mines in
                          Kutch District.
                               INDEX
    Section &                            Description
                                                                        Page No
    clause No
                                       Cover page & Index
  SECTION – I     Invitation To Bid                                        2
      1           Details of NIT
                  The Details of GMDC’s bank a/c details                   4
        2         Condition of Contract                                    8
        1         General And Specific Terms and Conditions                9
       1.1        General Conditions
       1.2        Specific terms and conditions
       1.3        Product Water Quality Parameter Test
       1.4        Delivery/Commissioning
       1.5        Pre - bid compliance undertaking
        2         Part II GENERAL CONDITIONS OF CONTRACT                  13
        3         Part III SPECIFIC TERMS AND CONDITIONS                  16
                  INSTRUCTIONS TO BIDDERS
       1.         Eligibility Criteria                                    20
       1.1        Financial Criteria
       1.2        Technical Criteria
        2         INFORMATION REQUIRED TO BE FURNISHED BY
                                                                          21
                  APPLICANTS
                  Formats                                                 22
       2.1        Appendix - A
       2.2        Appendix – A1
       2.3        Appendix – A2
       2.4        Appendix – B
                  Appendix – C
                  Appendix – D
                  Appendix – E
                  Appendix – F
                  Appendix - G
                  Application Form (1), General Information
                  Table 1 to 6
  SECTION – II    GENERAL INFORMTION AND TECHNICAL
                  SPECIFICATION
        1         General Information                                     37
        2         Scope of work, technical specifications and general
                                                                          42
                  conditions
       3          Office Building Including Guest Room and Laboratory     51
  SECTION – III   TECHNICAL SPECIFICATIONS CIVIL                          58
      1.0         Civil And Building Works                                59
      2.0         Earth Work                                              67
      3.0         CONCRETE                                                75




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Gujarat Mineral Development Corporation Limited




             4.0         STRUCTURAL STEEL WORK                                       98
             5.0         Pipelines & Pipe work                                      110
             6.0         GENERAL TECHNICAL SPECIFICATIONS FOR
                         PUMPING MACHINERYAND ELECTRICAL                            124
                         EQUIPMENTS
             7.0         OPERATION AND MAINTENANCE                                  130
             8.0         LIGHTING SYSTEM                                            133
             9.0         ELECTROMAGNETIC FULL BORE TYPE FLOW METER                  139
                         TESTS AND TEST CERTIFICATES                                140
                         LIST OF APPROVED VENDORS                                   142
             A           Materials
             1           Scope
             2           Applicable Codes
             3           Design
             4           Manufacturing
                         Drawing for Layout of Solar Energy Desalination Plant      151
                         Drawing for Schematic Diagram of Solar Desalination
                                                                                    152
                         Plant
                         Drawing for Location of Solar Energy Desalination plant
                                                                                    153
                         (100m x 100m)
                                               VOLUME – II
                         CONTENTS                                                    1
             1.0         BIDFORM                                                     2
                         SCHEDULE-A                                                  9
                         SCHEDULE-B                                                 10
                         SCHEDULE-C                                                 14
                         BREAK UP FOR SCHEDULE OF PAYMENT                           15
                         ANNEXURES                                                 19-26
                         ANNEXURE – I
                         ANNEXURE – II
                         ANNEXURE – III
                         ANNEXURE – IV
                         ANNEXURE – VI
                         ANNEXURE – VII




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Gujarat Mineral Development Corporation Limited




                                              CONTENTS


                                             VOLUME II
1.0             BID FORM (WITH PRICE)

2.0             PREAMBLE TO PRICE SCHEDULES

3.0             PRICE SCHEDULES

                •   SCHEDULE A - QUOTED PRICES

                •   SCHEDULE B -BREAKUP OF COST FOR CONSTRUCTION PHASE
                                CIVIL WORKS

                •   SCHEDULE C INTERIM PAYMENT FOR CIVIL WORKS




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Gujarat Mineral Development Corporation Limited




                                         BID FORM
                                       (WITH PRICE)


PROVIDING INSTALLING COMMISSING & O&M
OF SOLAR BASED DESALINATION PLANT OF 1
MLD CAPACITY, CONSRUCTION & O&M OF
PARTIAL WTP OF 0.50 MLD OF CAPCITY AND
DISPOSAL PIPELINE OF 600 MM DIAMETER RCC
PIPES NEAR MATA NO MADH DISTRICT KUTCH.




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Gujarat Mineral Development Corporation Limited




Bidders are required to fill up all blank spaces in this Bid Form

The General Manager (CSR)
Gujarat Mineral Development Corporation Ltd.,
Ahmedabad.

Dear Sir,

SUB :         BID DOCUMENT FOR PROVIDING INSTALLING COMMISSING &
                 O&M OF SOLAR BASED DESALINATION PLANT OF 1 MLD
               CAPACITY, CONSRUCTION & O&M OF PARTIAL WTP OF 0.50
                  MLD OF CAPCITY AND DISPOSAL PIPELINE OF 600 MM
                     DIAMETER RCC PIPES NEAR MATA NO MADH
                                 DISTRICT KUTCH.

Having visited the site and examined the Bid Documents, Drawings, Conditions of Contract,
Specifications, Schedules, Annexure, Preamble to Price Schedules, Price Schedules etc. including
Addenda/Amendments to the above, for the execution of the above Contract, we the undersigned offer to
design, engineer, procure, construct, complete, commission, operate and maintain the whole of the said
Works for five years from the date of commissioning including defects liability period as given in
Conditions of Contract and in conformity with the Drawings, Conditions of Contract, Specifications,
Preamble to Price Schedules, Price Schedules, Annexure, Bidding Documents, including Addenda
Nos._______________(insert numbers) for Lump sum fixed price of Rs._______________ (Rupees
_________________________________________________)                  for       Construction        and
Rs.____________(Rupees____________________________________________________)                        for
Operation and Maintenance for a period of five years or such other sum as may be ascertained in
accordance with the Conditions.

2.              I / We agree that

                (a) If we fail to provide required facilities to the Employer's representative or any other
                    person/agency by the employer to perform on his behalf for carrying out the
                    inspection and testing of materials and workmanship
                                                              Or
                (b) If we incorporate into the Works, materials before they are tested and approved by
                    the Engineer’s representative
                                                              Or
                (c) If we fail to deliver raw water of required quantity according to the
                    conditions/stipulations of the Contract, the Engineer will be at liberty to take any
                    action including termination of Contract and impose at his absolute discretion any
                    penalties, and/or reject the work.

3.    We undertake, if our Bid is accepted, to complete and deliver the Works in accordance with the
      Contract within 6 months, inclusive of monsoons, from the date of receipt of Letter of Acceptance
      issued to us by you.

4.    We agree to abide by this Bid for a period of 180 days from the date fixed for receiving the same
      and it shall remain binding upon us and may be accepted at any time before the expiry of that
      period.

Multi Mantech International Pvt. Ltd
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Gujarat Mineral Development Corporation Limited




5.    In the event of our Bid being accepted, we agree to enter into a formal Contract Agreement with
      you incorporating the conditions of Contract thereto annexed but until such agreement is prepared
      this Bid together with your written acceptance thereof shall constitute a binding Contract between
      us.

6.    We agree, if our Bid is accepted, to furnish Performance Bond/Security in the forms and of value
      specified in the Conditions of Contract of a sum equivalent to 5% of the Contract price for due
      performance of the Contract.

7.    We have independently considered the amounts of liquidated damages shown in Appendix to Bid
      and agree that they represent a fair estimate of the damages likely to be suffered by you in the
      event of the Work not being completed by us in time.

8.    We understand that you are not bound to accept the lowest or any Bid you may receive.

       Dated this _____________________day of___________________________ 2010.

                                                                 ___________________________
                                                                       (Signature)
                                                                 ___________________________
                                                                    (Name of the person)

                                                                 ___________________________
                                                                     (In the capacity of)
Company Seal
                                                               ___________________________
                                                                     (Name of firm)
                Duly authorized to sign Bid for and on behalf of
                (Fill in block capitals)
                ______________________________________________________________
                ______________________________________________________________
                ______________________________________________________________
Witness

Signature       _______________________
Name            _______________________
Address         _______________________
                ______________________

(Note: Above form shall not be filled up at this stage, but it shall be filled up at the time of Agreement.)



PREAMBLE
TO
PRICE SCHEDULES


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PREAMBLE TO PRICE SCHEDULES

1.      The bid is Item rate turnkey bid for engineering, procurement, construction, testing and
        commissioning and six month trial run, and 5 years of O X M.
2.      The bidder shall quote his firm and fixed price for the every item work under this contract in
        schedule B of this bid document.
3.      The rates and prices shall be submitted in the formats given in the enclosed Price Schedules
        B. Rates and prices received in any other formats will be rejected and the Bids will be
        disqualified.
4.      It will be entirely at the discretion of the Employer to accept or reject the bidder’s proposal,
        without giving any reasons whatsoever and the bidder shall not be permitted to withdraw his
        bid on this account.
5.      In Price Schedule-B, bidder shall quote his price for each item work with break-up for items
        listed in the schedule. Prices quoted in Schedule-B only will be considered for price
        evaluation & shall form a part of the Contract Agreement.
6.      Each item is to be individually priced ONLINE ONLY and the amounts shall be added up to
        arrive at the “Total of each Price Schedule”. No column in the Schedules of prices shall be
        left blank except where the item description requires the item to be priced on "as applicable”
        basis. The item shall not be priced if it is “not applicable” to the bidder’s design, in which
        case the bidder shall add the words “NOT APPLICABLE”. The wording in the item
        description is for subject matter guidance only; clause references are indicative only and all
        other relevant clauses shall also be referred to. The prices shall allow for all the works
        covered under the bid and all liabilities and contractual obligations whether separately
        specified or not. Items against which no prices are quoted shall not be separately paid for and
        the bidder shall be deemed to have covered the cost of execution of such items (according to
        the requirements of the bid document) in the prices quoted for other items.
7.      Schedule - C gives the basis of interim payment for construction of civil and other works.
8.      Only Price Schedule - B will be considered for financial evaluation of the bid.
9.      The bidder shall be deemed to have allowed in his price for provision and final removal of all
        temporary works of whatsoever nature required for construction including temporary bunds,
        diverting water, pumping, de-watering etc. for the proper execution of works. The rates shall



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        also be deemed to include any works and setting out that may be required to carry out of all
        the works involved.
10.     Prices shall be filled online only and shall be entered in figures and in words. Where there is
        a discrepancy between the unit rates and the amount entered, the latter shall govern.
11.     Prices quoted by the bidder shall be firm for the entire period of Contract without any
        escalation
12.     The prices quoted shall also include the cost of materials utilized for testing.
13.     The bidder should acquaint him self with the site conditions including the access to Work
        site. The successful bidder shall have to make suitable access to work sites at his own cost.
14.     1% of the value of work will be deducted from the Running bill against labor cess.
15.     The rate should be quoted inclusive of all taxes and duties prevailing at the time of
        submission of the bids. However, statutory variation if any will be paid by GMDC.
16.     The rates should be quoted excluding service tax, which will be paid extra if applicable
17.     The bidders shall go through the annexure given after Price schedule-C and quote their rates
        in the tender as the details given in the annexure shall be inclusive in the scope of work.




Signature of Contractor


Bidder’s Stamp and Initials




Multi Mantech International Pvt. Ltd
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Gujarat Mineral Development Corporation Limited




                         PRICE SCHEDULES




Multi Mantech International Pvt. Ltd
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Gujarat Mineral Development Corporation Limited




                      PRICE SCHEDULE - A




Multi Mantech International Pvt. Ltd
                                                  8
Gujarat Mineral Development Corporation Limited




Name Of Work:-Providing, Installing, Commissioning, Operation and Maintenance of Solar
based Desalination Plant of 1 MLD capacity, Construction and O&M of Partial WTP of 0.50
MLD &Disposal Pipeline of 600 mm diameter RCC Pipes At Lignite Mines Site near Mata No
Madh in Kutch District.



                                      ::      SCHEDULE-A           ::
                 Schedule showing approximately the materials to be supplied from the Public Works
                 stores for the work proposed to be executed and rate at which they are to be charged
                 for.

     Sr. Particulars of        Qty.    Rate at which materials will be    Place of    Remarks.
     No      materials.                    charged to the contractor.     Delivery.
     1            2             3                      4                      5            6
                                                       NIL


Note :-
1.        The person or the firm submitting the tender should see that the rates of above
          schedule are filled up by the Executive Engineer or in charge of the work before
          issuing the tender.
2.        The contractor should have to make his own arrangement for loading, unloading,
          and carting the materials from store to site of work at his own cost.
3.        The materials shall be issued free of cost by Department. However recovery will be
          affected at the double rate of issue rate, in case of non return of balance materials
          by the contractor.
4.        Approved vendor List for purchase of materials/Equipment required for the work
          shall be as per GMDC Vender List and as approved by consulting Engineer and
          Engineer in Charge.




Signature of Contractor


Bidder’s Stamp and Initials

Multi Mantech International Pvt. Ltd
                                                                                                   9
Gujarat Mineral Development Corporation Limited




                     PRICE SCHEDULE – B




Multi Mantech International Pvt. Ltd
                                                  10
Gujarat Mineral Development Corporation Limited




Name Of Work:- :- Providing, Installing, Commissioning, Operation and Maintenance
of Solar based Desalination Plant of 1 MLD capacity, Construction and O&M of Partial
WTP of 0.50 MLD &Disposal Pipeline of 600 mm diameter RCC Pipes At Lignite Mines
Site near Mata No Madh in Kutch District.
                                      SCHEDULE-B
 Ite
                                                                    Amount Rs. In
 m           Item Description          Quantity Unit       Rate
                                                                     in Rs.  Words
No.
  1 Providing, Supplying,
     installation and commission of
     solar based Desalination plant
     having capacity to treat 1 MLD
     raw water of mine including
     required component,
     accessories, piping etc.
     complete.( Cost break up shall
     be as per FORM- A)
                                        1 No.    Job
  2 Development & area grading of
     the entire site including land
     scapping of the premises of the
     plants and all structures,
     including approach road and
     internal roads.                    20000 Sq.Mt.
  3 Providing and constructing
     RCC intake well 20 square
     meters size (in to in) and pump
     house of same size above
     intake well in the pond
     including approach bridge, as
     directed.                            1      Job
  4 Providing, installing, testing
     and commissioning of HSCF
     pumping machinery over pump
     house having discharging
     capacity of 150 cubic meter per
     hour against 20 meter head
     including motor, control panel
     with all required accessories
     with sluice valves non return
     valves flow meter and suction
     and delivery pipes foot valves
     common header and required
     size of HDPE pipe rising main      !        Job.

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    up to Desalination plant and
    Partial WTP with all labors
    materials etc complete as
    directed. (2W+1SB).
 5 Office building and Guest room
   with required furniture and
   adequate laboratory facility
   with equipments and
   appurtenances for testing and
   examining the raw water and
   treated water for chemical as
   well as bacteriological
   parameters.                                    200   Sq.mt.
 6 A building facility for
   accommodating operating staff.
   – 200m2 ( including required
   furniture )                                    200   Sq.mt.
 7 150 m3 capacity of raw water
   ground level R.C.C tank in
   M:300 with inlet ultrasonic
   water meter                                    1      No
 8 200 m3 capacity of treated
   water ground level R.C.C tank
   with roof in M:300                             1      No
 9 Providing under ground RCC
   (M:300) chamber (2.0 meter x
   2.0 meter x 2.5 meter)                         1      No
10 100m3 capacity of raw water
   ground level R.C.C tank in
   M:300 with inlet ultrasonic
   water meter (without roof)                      1     No
11 Chain link wire Fencing to the
   entire plant area with attractive
   gate of minimum 5 meter width
   and security cabin of 2mx2m
                                                   1     Job
12 Partial Water Treatment plant
   of 0.5 MLD capacity
                                                   1     Job
13 Providing and Laying of
   600mm diameter of RCC NP2
   class pipe line with socket &
   spigot with rubber ring
   including excavation, refilling.           1500      R.mt.
                            Total Capital cost in Rs.


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14 Operation , Maintenance and
   regular services of the plant for
   5 years after satisfactory trial
   run of first 60 days              5 Years          Job
15 Operation, Maintenance and
   regular services of the plant for
   20 years after satisfactory O &
   M of first 5 years                20 Years         Job
                                                                 Total Rs

                                                 Note:
1) Item no: 14 O & M for 5 years – lump sump charges for 5 years shall be quoted and a break up of
                    each year shall be indicated in support of charges for 5 years
  2) Item no: 15 O & M for 20 years – lump sump charges for 20 years shall be quoted along with a
    break up of charges for each years. This item may or may not be taken into consideration for
                                      financial evaluation of bids.
 3) The financial evaluation and accessing of first lowest bidder shall be based on the capital cost of
                          first 13 items + O & M charges of first five years




Signature of Contractor


Bidder’s Stamp and Initials




Multi Mantech International Pvt. Ltd
                                                                                                    13
Gujarat Mineral Development Corporation Limited




                                           FORM - A

Break up of Price of solar based desalination plant quoted in Item
                No 1 Schedule – B of Price Bid


                                                   Break up of cost in Rupees (in figure & in words)
Sr No              Description
                                                  Civil     Mechanical     Instrumentation       Total
   1      Parabolic concentrators with
          rigid frame rotational support
          and multiple processes of
          mirrors.
   2      Receiver constructed from
          boiler quality steel.
   3      Control tracking system to
          trick movement of sun all
          day by means of Timer gear
          box, motor etc. with required
          structures.
   4      Counter weight.
   5      Wire ropes
   6      Steam header pipes with
          required
   7      Flow meters
                   *Grand Total
* Total of the break up should be match with Item No 1 (Schedule – B)




Signature of Contractor


Bidder’s Stamp and Initials




Multi Mantech International Pvt. Ltd
                                                                                                   14
Gujarat Mineral Development Corporation Limited




                    PRICE SCHEDULE – C
                  INTERIM PAYMENT FOR CIVIL WORK




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Gujarat Mineral Development Corporation Limited




                                             SCHEDULE - C
PREAMBLE

1. As mentioned in the Conditions of contract, the Contract being a Item Rate type turnkey
   Contract, the provision of measurement will be applicable only for the assessment of value of
   work done for inclusion in any interim certificate for part payment to the Contractor.
2. The Schedule specifies the procedure for all such assessment of the items for civil works
   specified in Schedule B.
3. Each item of Schedule B has been divided into broad components. The Employer's
   Representative shall assess the value of each component as indicated in paragraph 6 herein
   below.
4. Percentages are indicated against each component of each item of civil works specified in
   Schedule B, based on the Employer's best appreciation of the value of the component as related
   to the total costs of the concerned item as whole. A head titled (any other item(s)) is included in
   each breakdown of schedule and the tenderer shall at the time of tendering indicate any
   additional items which he considers necessary but cannot be covered by any of the heads
   indicated in the breakup.
5. The percentage breakup as indicated in the Schedule may differ from that corresponding to the
   tenderers scheme and design and he should take this into account while quoting his lump sum
   prices for the items specified in Schedule-B
6. The contractor shall, after approval of his detailed designs and drawings furnish to the
   Employer's Representative an initial bill of quantities to all major items, to be reviewed and
   updated periodically with the Employer's Representative. This bill of quantities will be used for
   assessment of percentage progress of the component at any stage. By measurement jointly taken
   by the Employer's Representative and the Contractor, mutually agreed and entered in the
   measurement books in the form and by the method approved by the Employer's Representative,
   and signed jointly by both the parties




Signature of Contractor


Bidder’s Stamp and Initials




Multi Mantech International Pvt. Ltd
                                                                                                   14
Gujarat Mineral Development Corporation Limited




              BREAK UP FOR SCHEDULE OF PAYMENT
Item                       Description of Items                         Percentage Payment to be
                                                                                released
 A      For Solar Based Thermal Desalination Plant ( Item: 1)                    100%

A-1     For Mechanical & Instrumentation works

 1      Advance payment along with work order against bank                        10%
        guarantee

 2      On supply of materials on site after verification                         50%

 3      On successful assembly and erecting of the plant                          25%

 4      After trial runs of sixty days and completion of all                      10%
        infrastructural facilities at site as mentioned in the tender
        document

 5      On completion of 12 months successful operation of plant.                 5%

A-2     For Civil works

 1      Advance payment along with work order against bank                        10%
        guarantee

 2      On approval of Design and Drawings                                        5%

 3      After completion of work.                                                 80%

 4      For Commissioning                                                         5%


 B      Development of Land, Area Grading & Land                          100% of quoted Amt.
        Scapping (Item:2)

 1      After completion of survey & approval of Design &                         15%
        planning

 2      Completion of work before starting of civil work                          40%

 3      Completion of remaining work after completion of all                      40%
        civil works and approach and internal roads.

 4      For Commissioning                                                          5%




Multi Mantech International Pvt. Ltd
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Gujarat Mineral Development Corporation Limited




 C      Intake Well and Pump House (Item:3)       100 % quoted Amt


 1      On approval of Design and Drawings              5%


 2      After completion of work.                       90%


 3      For Commissioning                               5%




Multi Mantech International Pvt. Ltd
                                                                     16
Gujarat Mineral Development Corporation Limited




 D      Raw Water Pumping machinery (Item:4)                     100% of quoted Amt.


 1      On approval of Design & Data sheet                               5%


 2      On receipt of machinery on site                                 50%


 3      After installation & testing of machinery                       30%


 4      Providing, lowering, laying and testing of HDPE                 10%
        rising main.

 4      For Commissioning                                                5%



 E      Office building with Guest room & adequate               100% of quoted Amt.
        Laboratory facility and Staff quarters (Item:5&6)

 1      On approval of Design & Drawings                                 5%

 3      After satisfactory completion of work including all              60%
        finishing works, painting etc

 4      After supplying of furniture and Laboratory                      30%
        equipment, if any

 5     For Commissioning                                                  5%


 F      For RCC Raw and Clear water Sumps, Chamber               100% of quoted Amt.
        (Item:7,8,9 & 10)

 1      On approval of design & Drawings                                 5%

 2      Completion of foundation, base slab, vertical Wall and           70%
        top slab (if any) in RCC M:300 including all finishing
        work, piping & testing

 3      For supply of flow meter                                        20%

 4      For commissioning                                                5%




Multi Mantech International Pvt. Ltd
                                                                                       17
Gujarat Mineral Development Corporation Limited




  I     Wire Fencing (Item:11)                                 100% of quoted Amt

 1      On approval of design & Drawings                               5%

 2      After completion of all satisfactory work completion          90%

 3      For commissioning                                              5%


 J      Partial water treatment plant of 0.5 MLD capacity      100% of quoted Amt.
        (Item:12)

 1      On approval design & Drawings                                  5%

 2       Completion of cascade type inlet cum flash mixer,            90%
        alum dosing arrangement, sedimentation tank, drying
        beds

 3      For Commissioning                                              5%




Multi Mantech International Pvt. Ltd
                                                                                     18
Gujarat Mineral Development Corporation Limited




                                   ANNEXURES




Multi Mantech International Pvt. Ltd
                                                  19
Gujarat Mineral Development Corporation Limited




                                         ANNEXURE – I

                LIST OF LABORATORY FURNITURE & EQUIPEMENTS
          Sr.                          Particulars                   Quantity     Unit
          No.
      1          Supply of dual core intel board one G.B. Ram, 160   2          Nos.
                 G.B. H.D.D. Cabinet with SMPs, DVD Writer, 17"
                 Monitor, Keyboard & Mouse.

      2          Supply of 1.5 Ton capacity A.C.                     2          Nos.
                 Make : Voltas / Electrolux / L.G.

      3          Providing office furniture as per specifications.
      a)         Steel Chairs                                        12         Nos.
                 Make : Godrej CHR - 7 or Equivalent
      b)         Steel Office Tables                                 3          Nos.
                 Make : Godrej T-8 or equivalent
      c)         Computer Table                                      2          Nos.
      d)         Steel cupboard of size                              3          Nos.
                 Height - 1900 mm
                 Width - 1010 mm
                 Depth - 535 mm
                 Make : Godrej Storewell plain or equivalent




Multi Mantech International Pvt. Ltd
                                                                                         20
Gujarat Mineral Development Corporation Limited




                                        ANNEXURE – II
                         LIST OF LABORATORY INSTRUMENTS

  Sr.                         Description                 Qty.   Unit            Make
  No.
   1     Digital pH meter                                  1     No     Environmental &
                                                                        Scientific Instrument
                                                                        Co.
   2     Turbidity meter                                   1     No     Environmental &
                                                                        Scientific Instrument
                                                                        Co.
   3     Conductivity meter                                1     No     Environmental &
                                                                        Scientific Instrument
                                                                        Co.
   4     TDS meter                                         1     No     Environmental &
                                                                        Scientific Instrument
                                                                        Co.
   5     Magnetic stirrer with Hot plates                  2     No     Environmental &
                                                                        Scientific Instrument
                                                                        Co.
   6     Muffle furnace                                    1     No     Tempo
   7     Jar test apparatus                                1     No     Scientific Engineering
                                                                        corporation
   8     Balance - Electrical, Capacity 220 gm             1     No     Precisa
   9     Sterilize Oven (18" X 18" X 18")                  1     No     Tempo
  10     Bacteriological Oven (14" X 14" X 14")            1     No     Tempo
  11     Autoclave (45 X 60 cm)                            1     No     Equiptron
  12     Water distillation plant (4 lit/hr)               1     No     Patel Scientific
                                                                        company
  13     Aluminum stand                                                 Patel Scientific
                                                                        company
         For test tubes                                    3     No
         For autoclave with handle                         1     No
  14     Standard Pathological Microscope                  1     No     Almicro
  15     Spectrophotometer                                 1     No     Environmental &
                                                                        Scientific Instrument
                                                                        Co.
  16     BOD incubator of size 70 X 50 X 50 with all       1     No     Tempo
         std. accessories. 5 degree to 50 deg. C. Delux
         stabilizer
  17     Refrigerator (165 lit.)                           1     No     Godrej
  18     Gas cylinder with burner                          2     No     Indane
  19     Voltage stabilizer (500 VA)                       1     No     Trishul
  20     Additional Glass wares (As per the Sr. No. 22)          Lot    Jain Scientific Glass
                                                                        works

Multi Mantech International Pvt. Ltd
                                                                                                 21
Gujarat Mineral Development Corporation Limited




  21     Microprocessor based field measuring           1    No     U-tech
         instrument for measuring parameters like pH,
         conductivity, Resistivity, salinity, TDS,
         turbidity, etc.
  22     GLASSWARES AS BELOW:
   a     Chemical flask, 250 ml                         5   Nos.
   b     Chemical flask, 500 ml                         5   Nos.
   c     Beakers-250 ml                                 5   Nos.
   d     Beakers-500 ml                                 5   Nos.
   e     Pipette- 5 ml                                  5   Nos.
   f     Pipette- 10 ml                                 5   Nos.
   g     Burette                                        5   Nos.
   h     Reagent Bottles (Narrow mouth), 125 ml         5   Nos.
   i     Reagent Bottles (Narrow mouth), 500 ml         5   Nos.
   j     Measuring cylinders, 100 ml                    5   Nos.
   k     Measuring cylinders, 250 ml                    5   Nos.
   l     Burette stand                                  2   Nos.
  m      Plastic wash bottles                           3   Nos.
   n     Sample bottles with cap washer and narrow      5   Nos.
         mouth, 2.5 lit. capacity
   o     Thermometer (Mercury filled) (-10 to 50        5   Nos.
         Degree C)
   p     PH strips 2.5 to 10.5 range                    1   Dozen




Multi Mantech International Pvt. Ltd
                                                                             22
Gujarat Mineral Development Corporation Limited




                                        ANNEXURE – III

             LIST OF GUEST ROOM FURNITURE ARRANGEMENT

             Sr.
             No.                    Particulars             Quantity   Unit
              1       Providing & Fixing split A.C.1.5 Ton    1        No
                     capacity
              2      Providing Double beds with the size       1       Set
                     of 1.50m x 2.0m with matreses, pillows
                     bedsheet and blanket
               3     Provided sofa set 1 of three seats & 2    1       Set
                     of single seat
              4      Providing wooden wardrobe.                1       No
                     Height - 1900 mm
                     Width - 1010 mm
                     Depth - 535 mm
              5      Providing Chairs                          2       Nos.
              6      Providing Tables                          1       No.




Multi Mantech International Pvt. Ltd
                                                                              23
Gujarat Mineral Development Corporation Limited




                                           ANNEXURE NO IV

                                        LIST OF O & M TOOLS

         Sr.
                                          Particulars                      Qty   Unit
         No.
          1      Double ended spanners in mm from 10 to 18                  1    Set
          2      Box spanners in mm from 6 to 24                            1    Set
          3      Single open ended spanner in mm                            1    Set
          4      Allen key spanners 1.5mm to 16mm                           2    Set
          5      Pipe wrenches 2 Nos. each                                  1    Set
                 300 mm long
                 450 mm long
                 600 mm long
          6      Pipe die set with wrenches BSP
                 Threads 12 mm – 50 mm                                      1    Set
          7      Screw spanners 200 mm / 250mm / 300mm size one each        1    Set
          8      Steel hammers with wooden handles 0.25 kg / 0.5 kg / 1
                 kg each                                                    1    No
           9     Ratchet die set complete Threaded up to 100 mm             1    Set
          10     Torque wrenches 50 kgm & 100 kgm                           1    No
          11     Set of tube cutter for tubes Up to 12 mm                   1    No
          12     Coupling puller suitable for main drive Coupling           1    No
          13     Grease gun                                                 2    Nos
          14     300mm steel frame hacksaw with 12 Nos. HSS blades.         2    Nos
          15     Heavy duty screw driver with full size insulated handle
                 200 mm                                                     2    Nos
                 250 mm                                                     2    Nos
                 300 mm                                                     2    Nos
          16     Vacuum cleaner for periodical cleaning of equipments,
                 cleaner operating on 230 volts 50 Hz AC supply complete
                 with cable and all standard and optional accessories       1    No
          17     Free floor standing cup board fabricated from 2.5 mm
                 thick M. S. plate and epoxy painted with lockable
                 arrangement having size of 2000 mm X 1000 mmX500
                 mm                                                         1    No
          18     Office table of steel with drawers                         1    No
          19     Steel Chairs                                               6    No




Multi Mantech International Pvt. Ltd
                                                                                        24
Gujarat Mineral Development Corporation Limited




                                           ANNEXURE NO. VI

                                  LIST OF SAFETY EQUIPMENTS

               Sr.
                                  List of Safety Equipment               Qty.   Unit
               No
                1     Danger notices as per requirements                  6     Nos
                2     First aid box with following standard contents      2     Nos
                a     Tincture Iodine
                b     Tincture Basins
                c     Firosin Tube
                d     Burnol
                e     Iodex
                f     Boric Powder
                g     Potassium Permanganate
                h     Smelling Salt
                i     Cotton
                j     Tape
                k     Bandage
                l     Scissors
                      Fire buckets including GI pipe stand locking        4     Unit
                3     arrangements etc. complete as per requirements
                      4 Kg carbon dioxide portable fire extinguisher     10     Nos
                4     with clamps & support
                      Rubber insulating corrugated mat 12mm thick         2     Nos
                5     & 1 M wide & 1.5 M long
                      First aid instruction chart in wooden frame with    2     Nos
                6     lamination
                7     Hand Gloves for 11 KV switch gear operation         4     Nos




Multi Mantech International Pvt. Ltd
                                                                                       25
Gujarat Mineral Development Corporation Limited




                                          ANNEXURE NO. VII

                    SCHEDULE OF UNIT RATE FOR ADDITIONAL WORK

Bidder shall quote for additional item which are not included in scope of work but required to
                    be carried out for successful completion of the Project

        Sr.
                              Description             Qty.    Unit      Rate    Amount
        No




      Signature of Contractor


      Bidder’s Stamp and Initials




Multi Mantech International Pvt. Ltd
                                                                                            26

								
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