ASTM C873/C873M-2010 在圆柱形模型中现场浇注的混凝土圆筒的抗压强度的标准试验方法
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【英文标准名称】:StandardTestMethodforCompressiveStrengthofConcreteCylindersCastinPlaceinCylindricalMolds
【原文标准名称】:在圆柱形模型中现场浇注的混凝土圆筒的抗压强度的标准试验方法
【标准号】:ASTMC873/C873M-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】:C09.61
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressivestrength;concrete;cylindermolds;in-placestrength;Compressiontesting--cement/concrete;Concretetestspecimens;Cylindricalconcretespecimens
【摘要】:Cast-in-placecylinderstrengthrelatestothestrengthofconcreteinthestructureduetothesimilarityofcuringconditionsbecausethecylinderiscuredwithintheslab.However,duetodifferencesinmoisturecondition,degreeofconsolidation,specimensize,andlength-diameterratio,thereisnotauniquerelationshipbetweenthestrengthofcast-in-placecylindersandcoresofthesameage.Whencorescanbedrilledundamagedandtestedinthesamemoistureconditionasthecast-in-placecylinders,thestrengthofthecylinderscanbeexpectedtobeonaverage10%higherthanthecoresatagesupto91daysforspecimensofthesamesizeandlength-diameterratio.Strengthofcast-in-placecylindersmaybeusedforvariouspurposes,suchasestimatingtheload-bearingcapacityofslabs,determiningthetimeofformandshoreremoval,anddeterminingtheeffectivenessofcuringandprotection.1.1Thistestmethodcoversthedeterminationofstrengthofcylindricalconcretespecimensthathavebeenmoldedinplaceusingspecialmoldsattachedtoformwork.Thistestmethodislimitedtouseinslabswherethedepthofconcreteisfrom125to300mm[5to12in.].1.2Units8212;ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningFreshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:英语
【原文标准名称】:在圆柱形模型中现场浇注的混凝土圆筒的抗压强度的标准试验方法
【标准号】:ASTMC873/C873M-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】:C09.61
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressivestrength;concrete;cylindermolds;in-placestrength;Compressiontesting--cement/concrete;Concretetestspecimens;Cylindricalconcretespecimens
【摘要】:Cast-in-placecylinderstrengthrelatestothestrengthofconcreteinthestructureduetothesimilarityofcuringconditionsbecausethecylinderiscuredwithintheslab.However,duetodifferencesinmoisturecondition,degreeofconsolidation,specimensize,andlength-diameterratio,thereisnotauniquerelationshipbetweenthestrengthofcast-in-placecylindersandcoresofthesameage.Whencorescanbedrilledundamagedandtestedinthesamemoistureconditionasthecast-in-placecylinders,thestrengthofthecylinderscanbeexpectedtobeonaverage10%higherthanthecoresatagesupto91daysforspecimensofthesamesizeandlength-diameterratio.Strengthofcast-in-placecylindersmaybeusedforvariouspurposes,suchasestimatingtheload-bearingcapacityofslabs,determiningthetimeofformandshoreremoval,anddeterminingtheeffectivenessofcuringandprotection.1.1Thistestmethodcoversthedeterminationofstrengthofcylindricalconcretespecimensthathavebeenmoldedinplaceusingspecialmoldsattachedtoformwork.Thistestmethodislimitedtouseinslabswherethedepthofconcreteisfrom125to300mm[5to12in.].1.2Units8212;ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningFreshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:英语
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