【英文标准名称】:StandardSpecificationforConcreteMadebyVolumetricBatchingandContinuousMixing
【原文标准名称】:利用连续混合法和体积配料法制备混凝土的标准规范
【标准号】:ASTMC685/C685M-2010
【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】:C09.40
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:预拌混凝土;试验;混凝土结构材料/设施-规范;连续混合操作;预拌混凝土-规范;体积测量-水泥/混凝土
【英文主题词】:ready-mixedconcrete;testing;Concreteconstructionmaterials/applications--specifications;Continuousmixingoperations;Ready-mixedconcrete--specifications;Volumetricmeasurement--cement/concrete
【摘要】:A1.2.1Thesetestsandrequirementsareusedtoevaluateloadingandoperatingprocedures;verifytheaccuracyofproportioningandindicatingsystems;anddetermineifmixinguniformityhasbeendegradedbyexcessivewearorbyaccumulationsofhardenedconcrete,orboth(NoteA1.1).NoteA1.18212;Themethodofloadingthebatching-mixingunit,propermaintenance,andotherfactorsmayhaveaneffectontheabilityoftheunittoproduceuniformlymixedconcrete.Forthisreason,theuseofthistestmethodnotonlymeasurestheefficiencyofthemixer,butalsothecombinedeffectofthemethodofloadingandoperatingtheunit.A1.2.2Thisannexprovidesadditionalproceduresandcautionsthatarenecessaryintheapplicationofexistingtestmethodsandpracticeswhenusedtodeterminetheuniformityoffreshlymixedconcrete.1.1Thisspecificationcoversconcretemadefrommaterialscontinuouslybatchedbyvolume,mixedinacontinuousmixer,anddeliveredtothepurchaserinafreshlymixedandunhardenedstateashereinafterspecified.Requirementsforqualityofconcreteshallbeeitherashereinafterspecifiedorasspecifiedbythepurchaser.Whentherequirementsofthepurchaserdifferfromthisspecification,thepurchaser''sspecificationshallgovern.Thisspecificationdoesnotcovertheplacement,consolidation,finishing,curing,orprotectionoftheconcreteafterdeliverytothepurchaser.Testsandcriteriaforbatchingaccuracyandmixingefficiencyarespecifiedherein.1.2ThevaluesstatedineitherSIunits,showninbrackets,orinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.3Thisspecificationreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthisspecification.1.4Thisstandarddoesnotpurporttoaddressallthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Warningx2014;Freshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongeduse.)A1.1.1ThisannexincludestestproceduresanduniformityrequirementsforuseintheevaluationofconcreteproducedinconformancewithSpecificationC685/C685Mbyanindividualbatching-mixingunit,loadedtoratedcapacity.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:9P.;A4
【正文语种】: