【英文标准名称】:StandardPracticeforMakingRoller-CompactedConcreteinCylinderMoldsUsingaVibratingTable
【原文标准名称】:使用振动台在筒模中制作碾压混凝土的标准方法
【标准号】:ASTMC1176/C1176M-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:C09.45
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:concrete;cylinderpreparation;roller-compactedconcrete;Concretetestspecimens;Cylindricalconcretespecimens;Roller-compactedconcrete;Vibratingtable
【摘要】:Thispracticeisintendedtobeusedforstifftoextremelydryconcretemixturescommonlyusedinroller-compactedconcreteconstruction.Thispracticeisusedinsteadofroddingorinternalvibration,whichcannotproperlyconsolidateconcreteofthisconsistency(Note1).Note18212;FurtherdescriptionofthisconcreteconsistencyisgiveninACI207.5Roller-CompactedMassConcreteand211.3GuideforSelectingProportionsforNo-SlumpConcrete.Theconsistencyofroller-compactedconcretemaybedeterminedinaccordancewithTestMethodC1170.1.1Thispracticecoversproceduresformakingcylindricaltestspecimensfromconcretewhenthestandardproceduresofroddingandinternalvibration,asdescribedinPracticeC31,arenotpracticable.Thispracticeisapplicabletofreshlymixedconcrete,preparedinthelaboratoryandthefield,havinganominalmaximumsizeaggregateof50mm[2in.]orless.Ifthenominalmaximumsizeaggregateislargerthan50mm[2in.],thepracticeisapplicableonlywhenperformedonthefractionpassingthe50-mm[2-in.]sievewiththelargeraggregatebeingremovedinaccordancewithPracticeC172.Thispractice,intendedforuseintestingroller-compactedconcrete,maybeapplicabletotestingothertypesofconcretesuchascement-treatedaggregateandmixturessimilartosoil-cement.1.2Twomethodsareprovidedformakingconcretecylindersusingavibratingtable:1.2.1MethodAisaprocedureformakingtestspecimensinsteelreusablemoldsattachedtoavibratingtable.1.2.2MethodBisaprocedureformakingtestspecimensinsingle-useplasticmoldsthathavebeeninsertedintoametalsleeveattachedtoavibratingtable.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【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