Designation:C845/C845M−18StandardSpecificationforExpansiveHydraulicCement1ThisstandardisissuedunderthefixeddesignationC845/C845M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcovershydrauliccementsthatexpandduringtheearlyhardeningperiodaftersetting.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthisstandard.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C33/C33MSpecificationforConcreteAggregatesC109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or[50-mm]CubeSpecimens)C114TestMethodsforChemicalAnalysisofHydraulicCementC183/C183MPracticeforSamplingandtheAmountofTestingofHydraulicCementC185TestMethodforAirContentofHydraulicCementMortarC188TestMethodforDensityofHydraulicCementC465SpecificationforProcessingAdditionsforUseintheManufactureofHydraulicCementsC688SpecificationforFunctionalAdditionsforUseinHydraulicCementsC806TestMethodforRestrainedExpansionofExpansiveCementMortarC807TestMethodforTimeofSettingofHydraulicCementMortarbyModifiedVicatNeedle3.Terminology3.1Definitions:3.1.1expansivecement(K)—anexpansivecementcontain-inganhydrouscalciumalumino...
