ASTM A1032-2004 预应力混凝土管用冷拉钢丝耐氢脆性的标准试验方法

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【英文标准名称】:StandardTestMethodforHydrogenEmbrittlementResistanceforSteelWireHardDrawnUsedforPrestressingConcretePipe
【原文标准名称】:预应力混凝土管用冷拉钢丝耐氢脆性的标准试验方法
【标准号】:ASTMA1032-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cracking;hydrogenembrittlement;prestressedconcretepipe;prestressing;steelwire
【摘要】:Hard-drawnsteelwireasusedinprestressingconcretepipemaybeexposedtoelementalhydrogenfavorabletohydrogeninducedembrittlementandcracking.Resistancetohydrogenembrittlementisnecessaryforprestressingwiretoprovidelong-termperformancetoinstalledpipe.ThelengthoftimethatastressedwirespecimenresistsfailurewhileexposedtoaheatedsolutionofNH4SCN,isanindicationofthespecimen’resistancetohydrogenembrittlement.1.1Thistestmethoddescribesprocedurestodeterminethehydrogenembrittlement(HE)resistanceofharddrawnsteelwireusedforprestressingconcretepipe.1.2HEresistanceisreportedastime-to-failureofspecimenstestedinalaboratory.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H49
【国际标准分类号】:77_140_15
【页数】:3P.;A4
【正文语种】: