【英文标准名称】:StandardSpecificationforPrecastAutoclavedAeratedConcrete(AAC)WallConstructionUnits
【原文标准名称】:预制增压加气混凝土墙(PAAC)建筑部件的标准规范
【标准号】:ASTMC1386-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C27.60
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:加气混凝土;抗压强度;密度;含水量;预制混凝土部件;预制墙板;收缩
【英文主题词】:AAC;compressivestrength;density;moisturecontent;precastautoclavedaeratedconcrete;shrinkage
【摘要】:1.1Thisspecificationcoverssolidnonload-bearingandload-bearingprecastconcretewallunitsmadefromautoclavedaeratedconcrete.Precastautoclavedaeratedconcrete(AAC)isacementitiousproductbasedoncalciumsilicatehydratesinwhichlowdensityisattainedbytheinclusionofanagentresultinginmacroscopicvoidsandissubjectedtohigh-pressuresteamcuring.Theprecastautoclavedaeratedconcretewallunitsarelarge-sizesolidrectangularprisms,whicharetobelaidusingthin-bedmortar.InstalledunitscoveredbythisspecificationshallbeprotectedagainstdirectexposuretomoistureusingacoatingmaterialacceptedbytheAACmanufacturer.1.2Therawmaterialsusedintheproductionofprecastautoclavedaeratedconcreteareportlandcement,quartzsand,water,lime,gypsumoranhydrite,andanagentresultinginmacroscopicvoids.Thequartzsandusedasarawmaterialmaybereplacedbyasiliceousfineaggregateotherthansand,andusuallyisgroundtoafinepowderbeforeuse.Flyashmaybeusedasasandreplacement.Thebatchedrawmaterialsaremixedthoroughlytogethertoformaslurry.Theslurryiscastintosteelmolds.Duetothechemicalreactionsthattakeplacewithintheslurry,thevolumeexpands.Aftersetting,andbeforehardening,themassismachinecutintounitsofvarioussizes.Theunitsthenaresteam-curedunderpressureinautoclaveswherethematerialistransformedintoahardcalciumsilicate.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection8,Section9,andSection10.
【中国标准分类号】:Q72
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】: