ASTM A911/A911M-2011 预应力混凝土轨枕用无涂层应力消除钢棒材

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【英文标准名称】:StandardSpecificationforUncoated,Stress-RelievedSteelBarsforPrestressedConcreteTies
【原文标准名称】:预应力混凝土轨枕用无涂层应力消除钢棒材
【标准号】:ASTMA911/A911M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:A01.05
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:低松弛钢筋;预应力混凝土;铁道轨枕;裸露钢制品;钢轨钢棒;钢丝(预应力钢筋混凝土)
【英文主题词】:low-relaxationbars;prestressedconcrete;railroadties;Uncoatedsteel;Railsteelbars;Steelwire(prestressedconcrete)
【摘要】:1.1Thisspecificationcoversuncoatedstress-relievedsteelbarsforuseinprestressedconcreterailroadties.1.2Asupplementaryrequirement(S1)isprovidedforusewherelow-relaxationbarsandrelaxationtestingforthatproductisrequiredbythepurchaser.Thesupplementaryrequirementappliesonlywhenspecifiedinthepurchaseorderorcontract.1.3Thisspecificationisapplicableforordersineitherinch-poundsunits(asSpecificationA911)orinSIunits(asSpecificationA911M).1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandards.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.
【中国标准分类号】:H44
【国际标准分类号】:77_140_15
【页数】:4P.;A4
【正文语种】: