Designation:C937−16StandardSpecificationforGroutFluidifierforPreplaced-AggregateConcrete1ThisstandardisissuedunderthefixeddesignationC937;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoversfluidifierforgroutusedforpreplaced-aggregate(PA)concrete.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodportion,Section8,ofthisstandard:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C33/C33MSpecificationforConcreteAggregatesC125TerminologyRelatingtoConcreteandConcreteAg-gregatesC150/C150MSpecificationforPortlandCementC219TerminologyRelatingtoHydraulicCementC618SpecificationforCoalFlyAshandRaworCalcinedNaturalPozzolanforUseinConcreteC637SpecificationforAggregatesforRadiation-ShieldingConcreteC938PracticeforProportioningGroutMixturesforPreplaced-AggregateConcreteC939/C939MTestMethodforFlowofGroutforPreplaced-AggregateConcrete(FlowConeMethod)C940TestMethodforExpansionandBleedingofFreshlyMixedGroutsforPreplaced-AggregateConcreteintheLaboratoryC941TestMethodforWaterRetentivityofGroutMixturesforPreplaced-AggregateConcreteintheLaboratoryC942TestMethodforCompressiveStrengthofGroutsforPreplaced-AggregateConcreteintheLaboratoryC953TestMethodforTimeofSettingofGroutsforPreplaced-AggregateConcreteintheLaboratory3.Terminology3.1Definitions:3.1.1Fordefinitionsoftermsusedinthistestmethod,refertoTerminologiesC125andC219.4.OrderingInformation4.1Th...