C15 普通混凝土配合比设计说明(英)教学内容.doc

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1、MixDesignofC15/201EnvironmentandEquipmentforTest1.1Thelaboratory,thetemperatureinthestandardcuringroomandthehumidityshallmeettherequirementsofthetestingregulations.1.2Thespecifications,range,accuracyofthetestequipmentshalladheretotherequirementsofthetestingregulat

2、ionswithpassingthechecktobequalifiedbytheInstituteofMeasurementandTestingofTBS.2DesignBasis2.1DesignRegulationsfortheMixRatiooftheOrdinaryConcrete:JGJ55-20002.2StandardSpecificationforHighwayBridgeConstruction:JTJ041-20003MaterialsSelection3.1Cement:Simba42.5Rtype

3、ofcementwillbeusedwiththecementtestresultstablebelow:PARMETERUNITOFMEASURESPECIFICATIONSTZS727-2002EN197-1:2000)SIMBAAVERAGEVALUESCompressivestrengthmortartest(days)MpaNotlessthan1016Compressivestrengthmortartest(28days)MpaBetween42.5and62.546LnitialsettingtimeMin

4、utedNotlessthan60100CementmortarexpansionMmNotlessthan101Sulphuricanhydride%SO3Notlessthan3.52.5Chloridecontent%CINotlessthan0.10.023.2FineAggregate:MediumsandintheNyakabindiRiverwillbeusedwiththetestresultstablebelow:DescriptionOriginSieveAnalysisFinenessModulusY

5、ellowSandNyakabindiRiverSandDistrictII2.9GRADINGFORSandTOTALMASSBEFOREWASHING4716(g)Sieve(mm)M.retained(g)%retainedCumulativeretained%Cumulativepassing%10.0NILLNILL01006.350.10.199.94.751703.63.796.32.3699821.124.875.21.1880717.141.958.10.681617.359.240.80.4256801

6、4.473.626.40.349010.484.016.00.1550510.7945.30.0751553.3982PAN9021000FM2.93.3CoarseAggregate:20mmofquarrystonesonNyakabindiHillwillbeusedwiththetestresultstablebelow:DescriptionTFV(forF=400kN)Flakinessindex（%）ACVParticleGradeGravel21523.320.620mmTOTALMASSBEFOREWAS

7、HING5170(g)SIEVE(mm)M.retained(g)%retained%passing28.00NILLNILL10020.0063812.387.714.00276053.434.310.00156030.2416.32043.90.25.00000.22.00000.21.18000.20.6000.20.425000.20.3000.20.15000.20.075000.2pan3+50.203.4Water:thestoredwaterindamswillbeusedwiththetestresult

8、stablebelow:ParameterUnitsResultsK53+200RHS4800m2K61+100LHS14400m2K35+780RHS4800m2pH7.218.448.04TurbidityNTU14345819TotalSuspendedSolids(TSS)Mg/L8644011