ASTM C1144-1989(2004) 易碎核废料模壳张裂强度试验方法
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【英文标准名称】:StandardTestMethodforSplittingTensileStrengthforBrittleNuclearWasteForms
【原文标准名称】:易碎核废料模壳张裂强度试验方法
【标准号】:ASTMC1144-1989(2004)
【标准状态】:现行
【国别】:
【发布日期】:1989
【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】:C26.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:抗拉试验;核技术;试验;放射性废料
【英文主题词】:nuclearscrapandwastematerials;tension(tensile)properties/tests-tensilestrength
【摘要】:Thesplittingtensile-strengthtestcanbeusedonlyonbrittlewastematerialssuchasceramics,glass,concrete,orothermaterialsthatalsohavetensilefracturestrengthsthatarelessthanonethirdofthecompressionstrengths.Thetestcannotbeusedformetal-matrix,bituminous,plastic,orcoated-particlewasteforms.Thestrengthvaluesderivedfromthistestcannotbeappliedtocompressive-stressimpactfailure.Theresultsapplyonlytotensile-stressfailure.Aseparatecompression-strengthtest,inwhichacylindricalspecimenisloadedontheflatsurfaces,isrequiredtodeterminecompressionstrengthalongthelinesofTestMethodsC39,D2938,andC773.Failurescausedbyimpactmustbedeterminedinaseparatetest.Thistestmethodisapplicableonlytobrittlesolidsbecausethesearetheonlymaterialsthatfailunderadefinablestressstateforthetestspecimengeometryandloading.Forinstance,extensivelocalshearingatorneartheloadingpointsthatwillalsooccurforplasticallydeformablesolids,suchasductilemetalsorviscouspolymers,willchangethestressdistributionsufficientlytoinvalidatetheelastic-stresscalculationusedtoobtainthetensilestressacrosstheverticalfractureplane.Ductilematerialswillnot,inmanycases,fractureinthetest.Theeffectofspecimensizeonthemeasuredstrengthofbrittlematerialsisnotdeterminedbythistestmethod.Insomematerials,suchasconcretes,heterogeneitiesmaybesolargethattestsonlargerspecimensaremorerepresentative.TestingalongthelinesofTestMethodC496maythenbeappropriatetomeasuresplittingtensilestrength.Thistestmethoddoesnotdeterminetheeffectsoftimeandenvironmentonstrength,nordoesitaddressfailureunderlong-durationstaticloading.Thistestmethodcanbeusedasaquality-controlcheckandforoptimizingwasteformprocessing.1.1Thistestmethodisusedtomeasurethestaticsplittingtensilestrengthofcylindricalspecimensofbrittlenuclearwasteforms.Itprovidessplittingtensile-strengthdatathatcanbeusedtocomparethestrengthofwasteformswhentestsaredoneononesizeofspecimen.1.2Thetestmethodisapplicabletoglass,ceramic,andconcretewasteformsthataresufficientlyhomogeneous(Note1)butnottocoated-particle,metal-matrix,bituminous,orplasticwasteforms,orconcreteswithlarge-scaleheterogeneities.Cementitiouswasteformswithheterogeneities>1to2mmand5mmcanbetestedusingthisprocedureprovidedthespecimensizeisincreasedfromthereferencesizeof12.7mmdiameterby6mmlength,to51mmdiameterby100mmlength,asrecommendedinTestMethodC496andPracticeC192.Note18212;Generally,thespecimenstructuralormicrostructuralheterogeneitiesmustbelessthanaboutone-tenththediameterofthespecimen.1.3Thistestmethodcanbeusedasaqualitycontrolcheckonbrittlewasteformsandmaybeusefulforoptimizingwasteformprocessing.Meaningfulcomparisonofwasteforms,however,requiresdataobtainedonspecimensofonesize.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:F75
【国际标准分类号】:13_030_30
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:易碎核废料模壳张裂强度试验方法
【标准号】:ASTMC1144-1989(2004)
【标准状态】:现行
【国别】:
【发布日期】:1989
【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】:C26.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:抗拉试验;核技术;试验;放射性废料
【英文主题词】:nuclearscrapandwastematerials;tension(tensile)properties/tests-tensilestrength
【摘要】:Thesplittingtensile-strengthtestcanbeusedonlyonbrittlewastematerialssuchasceramics,glass,concrete,orothermaterialsthatalsohavetensilefracturestrengthsthatarelessthanonethirdofthecompressionstrengths.Thetestcannotbeusedformetal-matrix,bituminous,plastic,orcoated-particlewasteforms.Thestrengthvaluesderivedfromthistestcannotbeappliedtocompressive-stressimpactfailure.Theresultsapplyonlytotensile-stressfailure.Aseparatecompression-strengthtest,inwhichacylindricalspecimenisloadedontheflatsurfaces,isrequiredtodeterminecompressionstrengthalongthelinesofTestMethodsC39,D2938,andC773.Failurescausedbyimpactmustbedeterminedinaseparatetest.Thistestmethodisapplicableonlytobrittlesolidsbecausethesearetheonlymaterialsthatfailunderadefinablestressstateforthetestspecimengeometryandloading.Forinstance,extensivelocalshearingatorneartheloadingpointsthatwillalsooccurforplasticallydeformablesolids,suchasductilemetalsorviscouspolymers,willchangethestressdistributionsufficientlytoinvalidatetheelastic-stresscalculationusedtoobtainthetensilestressacrosstheverticalfractureplane.Ductilematerialswillnot,inmanycases,fractureinthetest.Theeffectofspecimensizeonthemeasuredstrengthofbrittlematerialsisnotdeterminedbythistestmethod.Insomematerials,suchasconcretes,heterogeneitiesmaybesolargethattestsonlargerspecimensaremorerepresentative.TestingalongthelinesofTestMethodC496maythenbeappropriatetomeasuresplittingtensilestrength.Thistestmethoddoesnotdeterminetheeffectsoftimeandenvironmentonstrength,nordoesitaddressfailureunderlong-durationstaticloading.Thistestmethodcanbeusedasaquality-controlcheckandforoptimizingwasteformprocessing.1.1Thistestmethodisusedtomeasurethestaticsplittingtensilestrengthofcylindricalspecimensofbrittlenuclearwasteforms.Itprovidessplittingtensile-strengthdatathatcanbeusedtocomparethestrengthofwasteformswhentestsaredoneononesizeofspecimen.1.2Thetestmethodisapplicabletoglass,ceramic,andconcretewasteformsthataresufficientlyhomogeneous(Note1)butnottocoated-particle,metal-matrix,bituminous,orplasticwasteforms,orconcreteswithlarge-scaleheterogeneities.Cementitiouswasteformswithheterogeneities>1to2mmand5mmcanbetestedusingthisprocedureprovidedthespecimensizeisincreasedfromthereferencesizeof12.7mmdiameterby6mmlength,to51mmdiameterby100mmlength,asrecommendedinTestMethodC496andPracticeC192.Note18212;Generally,thespecimenstructuralormicrostructuralheterogeneitiesmustbelessthanaboutone-tenththediameterofthespecimen.1.3Thistestmethodcanbeusedasaqualitycontrolcheckonbrittlewasteformsandmaybeusefulforoptimizingwasteformprocessing.Meaningfulcomparisonofwasteforms,however,requiresdataobtainedonspecimensofonesize.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:F75
【国际标准分类号】:13_030_30
【页数】:5P.;A4
【正文语种】:
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点击此处下载