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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-2010a
【标准状态】:现行
【国别】:
【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】:耐压强度;混凝土;圆筒模具;现场强度
【英文主题词】:compressivestrength;concrete;cylindermolds;in-placestrength
【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】:
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Informationtechnology-AbstractTestSuiteforFDDIMediaAccessControlConformanceTesting(FDDIMACATS)/Note:reaffirmationofANSIINCITS245-1995(R2001)*Approved2006-08-03,2001-06-07,1995-10-27.
【原文标准名称】:信息技术.光纤分布式数据接口(FDDI)介质访问控制一致性测试的抽象试验程序组(FDDIMACATS).注:ANSIINCITS245-1995(R2001)的再确认.2006-08-03、2001-06-07、1995-10-27批准
【标准号】:ANSIINCITS245-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995-01-01
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisAmericanNationalStandardcontainstheabstracttestsuitefortheFiberDistributedDataInterface(FDDI)tokenringMediaAccessControl(MAC)layerprotocol.ThistestsuitewasdevelopedbasedontheprinciplesdefinedinOSIConformanceTestingMethodologyandFramework(ISO9646)andwritteninTreeandTabularCombinedNotation(TTCN),andintendedfortestingconformancetotheMACstandard(ISO9314-2:1989)ofanyFDDIstations.
【中国标准分类号】:L78
【国际标准分类号】:35_110
【页数】:
【正文语种】:英语