ASTM D3752-1998(2006) 水泥体中石棉强度的标准试验方法
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【英文标准名称】:StandardTestMethodforStrengthImpartedbyAsbestostoaCementitiousMatrix
【原文标准名称】:水泥体中石棉强度的标准试验方法
【标准号】:ASTMD3752-1998(2006)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:C17.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:水泥;塑料;施工材料;石棉;纤维水泥;灰浆;材料;建筑
【英文主题词】:asbestos;asbestos-cement;cementmatrix;determination;evaluation;reinforcementpotential;strength
【摘要】:Thisprocedurefacilitatesthecomparisonofdifferenttypesorgradesofasbestosbasedontheircontributiontotheflexuralmodulusofrupture;thatis,thereinforcingvalue,whichisconsideredthemostpertinentpropertyforthemanufactureofasbestos-cementproducts.Thistestmethodisprimarilyintendedforfibergradesusednormallyinasbestos-cementproducts(Group6toGroup4fibers).Longerfibers(Group3)orshorterfibers(Group7)maypresentdifficultiesduringthepreparationofthefiltercakebecauseofpoordispersionandunevensettling.51.1Thistestmethodcoversthemeasurement,onalaboratoryscale,ofthecontributionofasbestosfiberstothestrengthofasbestos-cementproducts.Theresultsobtainedareusedintheprimaryassessmentofdifferentfibergradespriortotheirapplicationonalargerscale.1.2Thistestmethodcoversthedeterminationofthemodulusofrupture(MR),adjustedtoadrydensityof1.60Mg/m3(MRA),ofasbestos-cementtestspecimensthatcontaintheasbestosfibertobeevaluatedataconcentrationof10mass%,wherebythedegreeoffiberizationofthatfiberisspecifiedintermsofspecificsurfaceareaasdeterminedbyTestMethodD2752.TherelativereinforcingvalueofthefiberundertestisestablishedbycomparisonwithMRAvaluesobtainedwithafiberofknowncharacteristicsatafiberconcentrationof10%andadrydensityof1.60Mg/m3(1.60g/cm3).Note1Theadjustedmodulusofrupture(MRA)atanyintermediatefiberconcentrationmaybeinterpolatedfromresultssuitablydeterminedoveralimitedspanningrangeoffiberconcentrations.Forexample,theMRAat10%fiberconcentrationmaybegraphicallydeterminedfromdataat3and17%.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinformationonthesafeuseofchrysotileasbestos,referto"SafeUseofChrysotile:AManualonPreventiveandControlMeasures."Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_40
【页数】:7P.;A4
【正文语种】:
【原文标准名称】:水泥体中石棉强度的标准试验方法
【标准号】:ASTMD3752-1998(2006)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:C17.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:水泥;塑料;施工材料;石棉;纤维水泥;灰浆;材料;建筑
【英文主题词】:asbestos;asbestos-cement;cementmatrix;determination;evaluation;reinforcementpotential;strength
【摘要】:Thisprocedurefacilitatesthecomparisonofdifferenttypesorgradesofasbestosbasedontheircontributiontotheflexuralmodulusofrupture;thatis,thereinforcingvalue,whichisconsideredthemostpertinentpropertyforthemanufactureofasbestos-cementproducts.Thistestmethodisprimarilyintendedforfibergradesusednormallyinasbestos-cementproducts(Group6toGroup4fibers).Longerfibers(Group3)orshorterfibers(Group7)maypresentdifficultiesduringthepreparationofthefiltercakebecauseofpoordispersionandunevensettling.51.1Thistestmethodcoversthemeasurement,onalaboratoryscale,ofthecontributionofasbestosfiberstothestrengthofasbestos-cementproducts.Theresultsobtainedareusedintheprimaryassessmentofdifferentfibergradespriortotheirapplicationonalargerscale.1.2Thistestmethodcoversthedeterminationofthemodulusofrupture(MR),adjustedtoadrydensityof1.60Mg/m3(MRA),ofasbestos-cementtestspecimensthatcontaintheasbestosfibertobeevaluatedataconcentrationof10mass%,wherebythedegreeoffiberizationofthatfiberisspecifiedintermsofspecificsurfaceareaasdeterminedbyTestMethodD2752.TherelativereinforcingvalueofthefiberundertestisestablishedbycomparisonwithMRAvaluesobtainedwithafiberofknowncharacteristicsatafiberconcentrationof10%andadrydensityof1.60Mg/m3(1.60g/cm3).Note1Theadjustedmodulusofrupture(MRA)atanyintermediatefiberconcentrationmaybeinterpolatedfromresultssuitablydeterminedoveralimitedspanningrangeoffiberconcentrations.Forexample,theMRAat10%fiberconcentrationmaybegraphicallydeterminedfromdataat3and17%.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinformationonthesafeuseofchrysotileasbestos,referto"SafeUseofChrysotile:AManualonPreventiveandControlMeasures."Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_40
【页数】:7P.;A4
【正文语种】:
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