Checklist - Pennsylvania Department of Transportation

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					Latex Checklist (04/07)


                             Pennsylvania Department of Transportation
                                   Latex Modified Concrete Overlay Placement Checklist
  * All work shall conform to section 1042 of the Pennsylvania Department of Transportation Construction Specifications -Latex Modified Mortar or
  Concrete Wearing Surface, Project Special Provisions and plan notes and details.

ECMS                                      SR                         Sec                  County                           District
Pour Date                                       Structure                                                        Phase

        Yes    No     N/A
   1                        Approved materials - 1042.2
   2                            Cement - 701.1
   3                                 Certification and mill reports on file
   4                            Fine aggregate, Type A - 703.1
   5                                 Aggregate stored according to 106.03(b)
   6                                 Aggregate controlled according to 106.03( c)
   7                            Coarse Aggregate, A8 - 703.2
   8                                 Aggregate stored according to 106.03(b)
   9                                 Aggregate controlled according to 106.03( c)
  10                                 Is aggregate ASR >0.80%
  11                            Water - 720.1
  12                            Latex Emulsion Admixture - 711.3(e)
  13                                 Certification and laboratory analysis on file
  14                        Approved latex modified concrete mix design
  15                            Has compatibility of components been verified
  16                        Approved Quality Control Plan - 1042.3
  17                        Approved construction mixing equipment -1042.3(2)
  18                            Capable of at least 6 cuyd per hour
  19                            Rating plate attached to mixer
  20                            Aggregate bins covered at all times
  21                            Is anything leaking onto the deck from the machine
  22                            Is mix discharged uniformly and without segregation
  23                            Do all dials and flowmeters work properly
  24                            Are all dials and flowmeters in full view and easily read
  25                            Does tachometer function and running at calibration speed
  26                            Are all controls within easy access of the operator
  27                        Approved calibration of mixing equipment - 1042.2(f)
  28                            Has each unit been calibrated every 100 cuyds
  29                            Has a yield test been completed per AASHTO T121 or C136
  30                            Has 1/4 yd test been performed
  31                        Approved charging of mixing equipment - 1042.2(h)
  32                            Have bins been loaded less than 12 hours
  33                            Are moisture conditions of aggregates similar to the time when bins were loaded
  34                        Approved finishing and placing equipment - 1042.3
  35                        Approved finishing equipment - 1042.3
  36                        Placement plan submitted at least 2 weeks prior to operations
  37                        Bridge deck surface investigation conducted
  38                            Unsound concrete removed
  39                            Surface is clean
  40                            Exposed reinforcing steel is not dislodged
  41                            All steel areas that will contact LMC are clean
  42                            No micro cracking or potential reflective cracking areas are present
  43                            All deficiencies and findings are documented
  44                        Pre-placement meeting has occurred
  45                        Dry run has been performed
  46                            All areas are acceptable
Latex Checklist (04/07)


                             Pennsylvania Department of Transportation
                                   Latex Modified Concrete Overlay Placement Checklist
  * All work shall conform to section 1042 of the Pennsylvania Department of Transportation Construction Specifications -Latex Modified Mortar or
  Concrete Wearing Surface, Project Special Provisions and plan notes and details.

ECMS                                      SR                         Sec                  County                           District
Pour Date                                       Structure                                                        Phase

        Yes    No     N/A
  47                            Depth checks have been documented
  48                        Weather forecast has been checked
  49                            Is forecast for pour free from rain, hi/lo temps, or low humidity
  50                        Spud vibration used where necessary
  51                            Where existing reinforcement is exposed greater than 50% of bar diameter
  52                            At the edges
  53                            Adjacent to joint bulkheads and expansion dams
  54                            In depressions
  55                            Around scuppers
  56                            Areas of bridge deck repairs
  57                        Depth checks performed throughout the pour
  58                        Yield test performed in accordance with AASHTO T121
  59                        Correct QC sampling and testing performed
  60                        Smoothness and rideability tested with 20' straight edge
  61                        Surface textured correctly
  62                        After texturing
  63                            Cured without marking per 1042.3(d)
  64                            Burlap fully moistened but not dripping wet
  65                            Burlap placed before latex becomes non-plastic
  66                            Burlap soaked at least 24 hours in advance
  67                            Soaker hoses used to keep burlap fully moist
  68                            Soaker hoses and burlap covered with white poly
  69                            Edges of poly are secure
  70                            Poly applied within one hour of burlap
  71                        Wet cure and protection maintained for 48 hours
  72                        After 48 hours, wet cure removed, deck allowed to dry cure
  73                        After Dry Cure
  74                            Bridge deck overlay surface investigation conducted
  75                            Bridge deck is crack free
  76                            Bridge deck has no tearing
  77                            Bridge deck has no irregularities
  78                            Bridge deck is free from defects
  79                            Cracks sealed with crack sealer or latex grout
  80                        120 hours of curing allowed before work on adjacent concrete is performed




Conducted By                                                               Title                                          Date
Latex Checklist (04/07)


                                 Pennsylvania Department of Transportation
                                       Latex Modified Concrete Overlay Placement Checklist
  * All work shall conform to section 1042 of the Pennsylvania Department of Transportation Construction Specifications -Latex Modified Mortar or
  Concrete Wearing Surface, Project Special Provisions and plan notes and details.

ECMS                                   SR                          Sec                         County                          District
Pour Date                                         Structure                                               Phase

Document the following weather conditions prior, during and after the pour
                          Ambient temperature prior to the pour
                          Ambient temperature after the pour
                          Deck surface temperature prior to the pour
                          Deck surface temperature near the end of the pour
                          Evaporation rate prior to the pour - per ACI 305R-91
                          Evaporation rate after to the pour - per ACI 305R-91
Concrete Temperatures (each batch)




High and low daily temperatures during cure period:                                        Date             High Temp            Low Temp




Document the following time frames prior duing and after the pour

Start and end time for each batch                         Batch              Start Time           End Time




                          Start time of wet burlap placement
                          Finish time of wet burlap placement
                          Start time of white poly placement
                          Finish time of white poly placement
Wet cure ends:                    Date                                   Time
Dry cure ends:                    Date                                   Time




Conducted By                                                                                  Title                           Date

				
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