Designation:C940−16StandardTestMethodforExpansionandBleedingofFreshlyMixedGroutsforPreplaced-AggregateConcreteintheLaboratory1ThisstandardisissuedunderthefixeddesignationC940;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddeterminestheamountofexpansionandaccumulationofbleedwateratthesurfaceoffreshlymixedhydraulic-cementgroutcommonlyusedintheproductionofpreplaced-aggregate(PA)concreteandcementitiouspost-tensioningtendongrouts.1.2Itisforusewithhydrauliccementgroutwhetherornotitincludesfineaggregateorsupplementalcementitiousmate-rialsorboth.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C125TerminologyRelatingtoConcreteandConcreteAg-gregatesC219TerminologyRelatingtoHydraulicCementC937SpecificationforGroutFluidifierforPreplaced-AggregateConcreteC1064/C1064MTestMethodforTemperatureofFreshlyMixedHydraulic-CementConcreteE1272SpecificationforLaboratoryGlassGraduatedCylin-ders3.Terminology3.1Fordefinitionsoftermsusedinthisstandard,refertoTerminologyC125andTerminologyC219.4.SummaryofTestMethod4.1Groutisplacedinagraduatedcylinder.Changesintotalvolumeandaccumulationofbleedwater,ifany,onthesurfaceofthegroutareobservedoveraperiodoftime.5.SignificanceandUse5.1ThistestmethodisusefulfordeterminingtheexpansionandbleedingcharacteristicsoffreshlymixedfluidhydrauliccementgroutcommonlyusedinPAconcreteandcementitiouspost-tensioningtendongrouts.6.Interferences6....
