Designation:C185−15aAmericanAssociationStateHighwayandTransportationOfficialsStandardAASHTONo.:T137StandardTestMethodforAirContentofHydraulicCementMortar1ThisstandardisissuedunderthefixeddesignationC185;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoversthedeterminationoftheaircontentofhydrauliccementmortarundertheconditionshereinafterspecified.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3ValuesinSIshallbeobtainedbymeasurementinSIunitsorbyappropriateconversion,usingtheRulesforCon-versionandRoundinginIEEE/ASTMSI10,ofmeasurementsmadeinotherunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.5Warning—Freshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.22.ReferencedDocuments2.1ASTMStandards:3C91SpecificationforMasonryCementC109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or[50-mm]CubeSpecimens)C150SpecificationforPortlandCementC183PracticeforSamplingandtheAmountofTestingofHydraulicCementC185TestMethodforAirContentofHydraulicCementMortarC230/C230MSpecificationforFlowTableforUseinTestsofHydraulicCementC305PracticeforMechanicalMixingofHydraulicCementPastesandMortarsofPlasticConsistencyC595SpecificationforBlendedHydraulicCementsC778SpecificationforSandC1005SpecificationforReferenceMassesandDevicesforDeterminingMassandVolumeforUseinthePhysicalTestingofHydraulicCementsC1157PerformanceSpecificationforHydraulicCementC1328Specificationf...
