1、TP-2163-06 (1/2007) dualMinnesota Department of TransportationContact Report Ready Mix 2007Plant Name: _ Date: _Address: _ Phone: _Fax: _Prior to the production of Agency concrete each construction season, an Agency Representative shall perform a thorough on-site inspection of the concrete plant to
2、assure that the plant can produce concrete meeting Mn/DOT Specifications. In addition, the Concrete Producer must also provide the following copies of documentation: Lab Equipment Calibrations Producer must check and calibrate the sieves prior to starting production. The date of calibration should b
3、e clearly marked on the equipment using the procedures described in the Mn/DOT Lab Manual 2001, 2002, 2008, and 2009.Scale and/or Meter Calibrations An approved scale company or the Minnesota Department of Public Service must check and calibrate the scales. Thereafter, they are checked and calibrate
4、d once each year. Additional calibrations are made at three-month intervals using the procedures described in the Mn/DOT Concrete Manual 5-694.431- 5-694.435.Certificate of Compliance A batch ticket that includes all Mn/DOT Specifications, and the supporting oven dried mix design and moisture test r
5、esults.Technicians MN/Dot Certified Plant 1 Technician _ Cert # _MN/Dot Certified Plant 1 Technician _ Cert # _MN/Dot Certified Plant 2 Technician _ Cert # _MN/Dot Certified Plant 2 Technician Cell Phone #_Agency Representative: _Agency _Approved Date: _Not approved for the following reason/s: _Re-i
6、nspected and approved on_by_The Concrete Producer agrees to maintain all plant and laboratory equipment within allowable tolerances as set forth in the MN/DOT Specifications, to have all moisture and gradation tests run by a Plant Level I Technician certified by MN/DOT, and to have the Plant Level I
7、I Technician certified by MN/DOT on site at all times or available at the plant site in a reasonable time frame when called. After completing the Concrete Plant Contact Report, any procedural changes that cause non-compliance with this program will result in de-certification of the plant and cessati
8、on of further production of Agency concrete.Certified by: _Plant RepresentativeFAX CONTACT REPORT AND CERTIFICATE OF COMPLIANCE TO THE CONCRETE OFFICE AT 651-366-5530PlantType of Mixer:Certificate of Compliance:NOTE: All of the following items are required (Specification 2461.4D7a)_1. Name of Plant
9、_12. Approved Fly Ash Abbreviation_2. Contractor _13. Pit Number_3. Date _14. Approved Admix Abbreviation _4. State Project Number _15. Correct Column Order & Approved Labels _5. Bridge Number _16. Total Water in lbs_6. Batch Time _17. Water available to add in gallons, and spaces to record:_7. Truc
10、k Number Water added at plant, Water added at jobsite, Total actual water_8. Yd3/load _18. Spaces to record: air, temp, conc temp, slump, cylinder number,_9. Yd3/Cum part of structure, time discharged, and signature of Inspector._10. Mix Designation _19. Space for Producers signature_11. Approved Cm
11、t AbbrAggregate Moisture Meters:MaterialPlant Equipped with Meter (y/n)Meter Automatically Adjusts Batch Weights (y/n)Make Model Sensor LocationSand3/4“+ (19mm+)3/4“- or (19mm-)1/2“- or 3/8“- (12.5mm or 9.5mm)Class AScale and Meter Information:Material Type Make Capacity GraduationCementFly AshSlagA
12、ggregateWater ScaleWater MeterType of Plant: Ready Mix _ Dry Batch _ Batching Equipment: Make: _Model: _Condition: _Batching Software: Manufacturer: _ Version: _Max. mixer batch size _ yd3MaterialsCementitious Materials:Material Supplier w/Mill # of Silos Capacity(tons)Delivered By(truck, rail)Deliv
13、ered To Silo By(blower, elevator)Delivered ToHopper By(gravity, auger)Sampled At(truck, rail, hopper valve)CementCementFly AshSlagOtherTotal Cementitious Silos at PlantAdmixtures:Type Manufacturer Name of ProductSampled At(dispensing tubes recommended)A.E.A.Water ReducerRetarderSuper PlasticizerCalc
14、ium ChlorideAggregates:Material Supplier Pit Number Delivered By In-Plant Storage (tons)Sampled At(batch hopper, belt, stockpile)Sand3/4“+ (19mm+)3/4“- (19mm-)1/2“- or 3/8“- (12.5mm or 9.5mm)Class AAre stockpiles separated? (y/n) _Plant is fed by: Drive over hoppers _ How many compartments? _Field h
15、oppers _ How many? _Number of bins feeding plant _How many belts feed plant working bins _ Is turn head used? (y/n) _Belt Splitter (y/n) _ Auto Belt Splitter (y/n) _Water:Source: Proportioned by:_ City Water _ Meter_ Well Water _ Scale_ BothCan water be heated with a boiler? (y/n) _Temperature gauge
16、 location: Lab and EquipmentAdditional Requirements:Required at Plant Posted at Plant_ Concrete Manual _ Current Site Map_ Working Fax Machine _ Tech I & II Names & Cert #_ Tech II Cell Phone #Equipment:Mechanical Shakers, Screens and SievesBox Screens: Must have all screens listed below Calibrated
17、on _ 2“ (50mm)* _ 3/4“ (19.0mm) _ #4 (4.75mm) _ 1-1/2“ (37.5mm)* _ 5/8“ (16mm) _ 1/4” (6.3mm)*_ 1-1/4“ (31.5mm)* _ 1/2“ (12.5mm) _ Bottom Pan _ 1“ (25mm) _ 3/8“ (9.5mm) _ Mechanical Shaker *Required when using 3/4”+ (19.0mm) aggregate*Plants producing CA-50 with two fractions will need to use a 1/4“
18、 (6.3mm) sieve as a filler between the 3/8“ (9.5mm) and the #4 (4.75mm) sieves. Brass Sieves: Must have all sieves listed below Calibrated on _ 3/8“ (9.5mm) _ #30 (600m) _ Bottom Pan_ #4 (4.75mm) _ #50 (300m) _ Mechanical Shaker_ #8 (2.36mm) _ #100 (150m) _#16 (1.18mm) _ 2 - #200 (75m)NOTE: Two #200
19、 (75m) sieves are needed, one is for shaking the gradation and the second is for washing the sample during the final steps of the gradation process.Scales and MiscellaneousScales: _ Dairy Scale Calibrated on _ MINIMUM 55 lb CAPACITYMust have one of the two scales listed below._ Triple Beam Balance including the needed MINIMUM 2600g CAPACITYHanging Weights (1 - 500g and 2 - 1000g)Calibrated on_ Electronic Scale Calibrated on _ MINIMUM 2600g CAPACITYMiscellaneous:_ -200 Wash Bowl_ 2“ (50mm) Sample Splitter with 3 Pans _ 3 Burners: Natural Gas or Electric
