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【英文标准名称】:StandardTestMethodforChangeinHeightatEarlyAgesofCylindricalSpecimensofCementitiousMixtures
【原文标准名称】:胶结混合料圆柱形试样在最初几年的高度变化的标准试验方法
【标准号】:ASTMC827/C827M-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C09.68
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:changeinheight;cementitiousmixtures;concrete;expansion;groutheightchange;mortar;paste;shrinkage;Cement;Cementmortars;Changeinheight;Changeinlength;Concreteadmixtures;Grouts;Height;Volumetricmeasurement--cement/concrete
【摘要】:Thistestmethodprovidesameansforcomparingtherelativeshrinkageorexpansionofcementitiousmixtures.Itisparticularlyapplicabletogrouting,patching,andform-fillingoperationswheretheobjectiveistocompletelyfillacavityorotherdefinedspacewithafreshlymixedcementitiousmixturethatwillcontinuetofillthesamespaceattimeofhardening.Itwouldbeappropriatetousethistestmethodasabasisforprescribingmixtureshavingrestrictedorspecifiedvolumechangebeforethemixturebecomeshard.Thistestmethodcanbeusedforresearchpurposestoprovideinformationonvolumechangestakingplaceincementitiousmixturesbetweenthetimejustaftermixingandthetimeofhardening.However,thespecimenusedinthistestmethodisnotcompletelyunrestrainedsothatthemeasurementsareprimarilyusefulforcomparativepurposesratherthanasabsolutevalues.Further,thedegreeofrestrainttowhichthespecimenissubjectedvarieswiththeviscosityanddegreeofhardeningofthemixture.