Albuquerque District - U.S. Army by zhouwenjuan

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									CQC / QA Testing and Inspection
             Presented by: Gene Gutierrez

   Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Laboratory Requirements




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
           CQC / QA Laboratory
• Nationally Accredited
  – ASTM D 3666 (HMAC)                     - ASTM C 1077 (Concrete)
• USACE Validated
• Host Nation Licensed / Certified
  – Recommend Site Visit to Laboratory
  – Confirm /Evaluate Test Method Differences
• Qualified / Experienced / Certified Technicians




     US Army Corps of Engineers – Albuquerque District
          Transportation Systems 2004 Workshop, Ft Lauderdale, FL
 CQC / QA LABORATORY REQUIREMENTS
      USACE Civil and Military Projects
• Mandatory To Utilize USACE Validated Laboratories
to Perform Design Testing, Mix Designs and Routine
Construction Control Testing.
• ERDC Listing Of All Validated Labs (US and OCONUS)
   • http://www.wes.army.mil/SL/MTC/ValStatesTbl.htm
• Labs Not Listed Shall Be Inspected and Validated Prior to
Approval For Use On USACE Projects.
   • Main Facilities              - “On-Site” Satellite Labs

       US Army Corps of Engineers – Albuquerque District
            Transportation Systems 2004 Workshop, Ft Lauderdale, FL
        LABORATORY REQUIREMENTS
• Identify Laboratory Early and Assure Current Validation and
Check Expiration Date. Must Be Current Throughout Project.
• If Wanting to Use “Non Validated” Labs, Notify MTC As Soon
As Possible for Procedures for Initiating Validation.
   • Validation Takes Approx. 45 – 60 days
• Labs May Perform Only Those Tests for Which Validation was
Issued. No “Umbrella” Approvals Issued.




       US Army Corps of Engineers – Albuquerque District
            Transportation Systems 2004 Workshop, Ft Lauderdale, FL
     CQC Personnel Certifications
- ACI Certified Transportation Inspector
- ACI Certified Field Testing Technicians, Grade I
- ACI Certified Lab Testing Technicians, Grade I or II
- ACI Concrete Flatwork Tech / Finisher
- Licensed Surveyor (For Final grades)




      US Army Corps of Engineers – Albuquerque District
           Transportation Systems 2004 Workshop, Ft Lauderdale, FL
 Production Testing




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
                       CQC TESTING
                       Aggregate Testing
- Fine and Coarse Aggregates
   - Twice per Shift
   - Sieve Analysis and Fineness Modulus (FM)
  - Sampling Location (CRD-C 100 / ASTM D 75)
- Corrective Action
   - Failures Shall Be Resampled and Retested
   - Immediate Notification if Retest Fails
   - Stop Paving Operations

    US Army Corps of Engineers – Albuquerque District
         Transportation Systems 2004 Workshop, Ft Lauderdale, FL
     CQC TESTING - Concrete Mixtures
- Slump
   - Strength Test Specimens
   - Four per 8-hour Shift – Random
- Air Content
   - Strength Test Specimens
   - Two per 8-hour Shift - Random
- Additional Testing
   - Variation in Workability
- Sample at Paving Site
     US Army Corps of Engineers – Albuquerque District
          Transportation Systems 2004 Workshop, Ft Lauderdale, FL
             CQC STRENGTH TESTING
               Cylinder Correlation Ratio
Strength Testing
  - Random Sample at Placement Site (ASTM D 3665)
  - One Composite Sample per Sublot (4 Sublots per Lot)
       - Four Cylinders ( 6” X 12”) per Sublot (16 per Lot)
          - Eight Tested @ 7-Day Age (2 per Sublot) (CONTROL)
          - Eight Tested @ 14-Day Age (2 per Sublot)(ACCEPTANCE)
      - IN ADDITION, TWO BEAMS PER 2000 CM




      US Army Corps of Engineers – Albuquerque District
           Transportation Systems 2004 Workshop, Ft Lauderdale, FL
CQC PCCP Aggregate Testing
    During Construction
- Quality Testing
   - Deleterious Materials, ASR, Quality Series
   - Once Every Month Thereafter OR
         - Change on Source or Quality
- Every Three Months:
    - Previous Two Test Series Indicate Conformance
- Belt Sampling Required.
- Meet Minimum Sample Sizes for Petro & Gradations

    US Army Corps of Engineers – Albuquerque District
         Transportation Systems 2004 Workshop, Ft Lauderdale, FL
        Testing Issues




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
   BASE COURSE MATERIALS ISSUES
• Gradation Acceptance Based on “Completed Base” or After
Compaction Requirements Have Been Met.
   • Make Supplier Aware of This Requirement. Crushing on
   Coarse Side May Be Necessary.
• Assure Minimum Test Gradation Sample Sizes Met
When Using Sand Cone Test Method
   • Minimum Volume Requirement
• Depth Checks



       US Army Corps of Engineers – Albuquerque District
            Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Re-Compacting Base Materials




   US Army Corps of Engineers – Albuquerque District
        Transportation Systems 2004 Workshop, Ft Lauderdale, FL
         Sampling Platforms




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
        Sampling Platform / Template




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
    “ON- SITE” CURING FACILITIES


                                                  Denver International
                                                       Airport




    Box Trailer
Holloman AFB, NM




   US Army Corps of Engineers – Albuquerque District
        Transportation Systems 2004 Workshop, Ft Lauderdale, FL
CQC PCCP Aggregate Testing
    During Construction
- Quality Testing
   - Deleterious Materials, ASR, Quality Series
   - Once Every Month Thereafter OR
         - Change on Source or Quality
- Every Three Months:
    - Previous Two Test Series Indicate Conformance
- Belt Sampling Required.
- Meet Minimum Sample Sizes for Petro & Gradations

    US Army Corps of Engineers – Albuquerque District
         Transportation Systems 2004 Workshop, Ft Lauderdale, FL
      CQC Inspection
         Issues




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
                        CQC ISSUES
• Utilize Checklists (ie Concrete Pre-Placement)
• Timely Submission of Test Data Reports
• Minimum Testing Frequencies
  • Test Location
• Documentation of Inspections




      US Army Corps of Engineers – Albuquerque District
           Transportation Systems 2004 Workshop, Ft Lauderdale, FL
   DOUBLE SAW CUT METHOD




      First Cut :                                              Second Cut :
      Diamond Saw                                              Wheel Saw
      Full Depth                                               1 ½” Kerf
                                                               Full Depth



US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
        Concrete Demolition




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Under Break Of Adjacent Slabs




   US Army Corps of Engineers – Albuquerque District
        Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Lack of Full Depth Saw Cut




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Bridges for Consolidation




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Bridges for Consolidation




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Over Working Surface / “Skin Patching”




   US Army Corps of Engineers – Albuquerque District
        Transportation Systems 2004 Workshop, Ft Lauderdale, FL
 Adding Water To Surface




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
 Bridge Deck Finishers




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
    Tachometer




US Army Corps of Engineers – Albuquerque District
                                                    Amplitude Gauge
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
                     Consolidation




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Non-Uniform Application




 US Army Corps of Engineers – Albuquerque District
      Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Tolerances Across Construction Joints




    US Army Corps of Engineers – Albuquerque District
         Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Tolerances Across Construction Joints
                                                  Gouging / Shearing




 Spalling / Gouging


     US Army Corps of Engineers – Albuquerque District
          Transportation Systems 2004 Workshop, Ft Lauderdale, FL
       Edge “Fill-in” Lanes




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
 Protection of Pavement




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
 Protection of Pavement




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
        Protection of Work




           Protect Initial Cut Joints
US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
        Inclement Weather




    “Plan Ahead and Be Prepared”
US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
          “After the Storm”




 “Be Prepared to Pump Water ASAP”
US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
              Rain Damage




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
  Incompatible Repair Materials




                               - Epoxy Repair - Correction of Construction
                               Deficiencies
                               - Thermal Expansion Incompatibility FOD
                               Generator
                               -Seek Technical Support – AFCESA / ERDC/
                               TSCMX
US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
Hot Mix Roller Damage of
     New Pavement




US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
              Keys To Success
•   Open Communication
•   Clear Understanding Of Requirements
•   Planning – Plan Ahead
•   Prepare For “Unexpected”
•   Adequate Number Of CQC Staff
• Team Commitment to the “Three Phase”
  Inspection System
    – “It Works…..It’s a Proven System”

        US Army Corps of Engineers – Albuquerque District
             Transportation Systems 2004 Workshop, Ft Lauderdale, FL
          Helpful CQC References
• Engineer Pamphlets: EP415-1-261
http://www.usace.army.mil/inet/usace-docs/eng-pamphlets/ep.htm

   - Volume 1: Quality Assurance Representative's Guide - General
   Information and Sitework
   - Volume 2: Quality Assurance Representative's Guide - Pile
   Driving, Dams, Levees and Related Items
   - Volume 3: Quality Assurance Representative's Guide -
   Architectural and Structural Features in Building Construction
   - Volume 4: Quality Assurance Representative's Guide - Special
   Construction, Conveying Systems, Mechanical, and Electrical
   Features of Building Construction

      US Army Corps of Engineers – Albuquerque District
           Transportation Systems 2004 Workshop, Ft Lauderdale, FL
             QUESTIONS??
US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL
            THANK YOU




          “NEW MEXICO AIR POWER”
US Army Corps of Engineers – Albuquerque District
     Transportation Systems 2004 Workshop, Ft Lauderdale, FL

								
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