ASTM C1231/C1231M-2010a 硬化混凝土管的抗压强度测定过程中的无约束盖子使用的标准实施规程

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【英文标准名称】:StandardPracticeforUseofUnbondedCapsinDeterminationofCompressiveStrengthofHardenedConcreteCylinders
【原文标准名称】:硬化混凝土管的抗压强度测定过程中的无约束盖子使用的标准实施规程
【标准号】:ASTMC1231/C1231M-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】:(Practice)
【标准水平】:()
【中文主题词】:套;抗压强度;混凝土;混凝土测试;弹性体;氯丁橡胶;衬垫盖
【英文主题词】:cap;compressivestrength;concrete;concretetest;elastomeric;neoprene;padcap
【摘要】:ThispracticeprovidesforusinganunbondedcappingsystemintestinghardenedconcretecylindersmadeinaccordancewithPracticesC31/C31MorC192/C192MinlieuofthecappingsystemsdescribedinPracticeC617.Theelastomericpadsdeformininitialloadingtoconformtothecontouroftheendsofthecylinderandarerestrainedfromexcessivelateralspreadingbyplatesandmetalringstoprovideauniformdistributionofloadfromthebearingblocksofthetestingmachinetotheendsoftheconcreteormortarcylinders.1.1ThispracticecoversrequirementsforacappingsystemusingunbondedcapsfortestingconcretecylindersmoldedinaccordancewithPracticeC31/C31MorC192/C192M.Unbondedneoprenecapsofadefinedhardnessarepermittedtobeusedfortestingforaspecifiedmaximumnumberofreuseswithoutqualificationtestinguptoacertainconcretecompressivestrengthlevel.Abovethatstrength,levelneoprenecapswillrequirequalificationtesting.Qualificationtestingisrequiredforallelastomericmaterialsotherthanneopreneregardlessoftheconcretestrength.1.2Unbondedcapsarenottobeusedforacceptancetestingofconcretewithcompressivestrengthbelow1500psi[10MPa]orabove12000psi[80MPa].1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningConcretecylinderstestedwithunbondedcapsrupturemoreviolentlythancomparablecylinderstestedwithbondedcaps.ThesafetyprecautionsgivenintheManualofAggregateandConcreteTestingarerecommended.)
【中国标准分类号】:
【国际标准分类号】:91_100_30
【页数】:5P.;A4
【正文语种】: