ASTM C133-1997(2003) 耐火材料的冷破碎强度和挠折模量的标准试验方法

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【英文标准名称】:StandardTestMethodsforColdCrushingStrengthandModulusofRuptureofRefractories
【原文标准名称】:耐火材料的冷破碎强度和挠折模量的标准试验方法
【标准号】:ASTMC133-1997(2003)
【标准状态】:现行
【国别】:
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:C08.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:形状;耐火材料;试验;抗压强度;环境温度;挠折模量;抗断裂强度;砖
【英文主题词】:crushingstrength;modulusofrupture;monolithicrefractories;refractorybrick;roomtemperature;
【摘要】:Thecoldstrengthofarefractorymaterialisanindicationofitssuitabilityforuseinrefractoryconstruction.(Itisnotameasureofperformanceatelevatedtemperatures.)Thesetestmethodsarefordeterminingtheroomtemperatureflexuralstrengthin3-pointbending(coldmodulusofrupture)orcompressivestrength(coldcrushingstrength),orboth,forallrefractoryproducts.Considerablecaremustbeusedtocomparetheresultsofdifferentdeterminationsofthecoldcrushingstrengthormodulusofrupture.Thespecimensizeandshape,thenatureofthespecimenfaces(thatis,as-formed,sawed,orground),theorientationofthosefacesduringtesting,theloadinggeometry,andtherateofloadapplication,mayallsignificantlyaffectthenumericalresultsobtained.Comparisonsoftheresultsbetweendifferentdeterminationsshouldnotbemadeifoneormoreoftheseparametersdifferbetweenthetwodeterminations.Therelativeratioofthelargestgrainsizetothesmallestspecimendimensionmaysignificantlyaffectthenumericalresults.Forexample,smaller,cutspecimenscontaininglargegrainsmaypresentdifferentresultsthanthebricksfromwhichtheywerecut.Undernocircumstancesshould6-by1-by1-in.(152-by25-by25-mm)specimensbepreparedandtestedformaterialscontaininggrainswithamaximumgraindimensionexceeding0.25in.(6.4mm).Thistestmethodisusefulforresearchanddevelopment,engineeringapplicationanddesign,manufacturingprocesscontrol,andfordevelopingpurchasingspecifications.1.1Thesetestmethodscoverthedeterminationofthecoldcrushingstrengthandthemodulusofrupture(MOR)ofdriedorfiredrefractoryshapesofalltypes.1.2Thetestmethodsappearinthefollowingsections:TestMethodSectionsColdCrushingStrength4to9ModulusofRupture10to151.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q45
【国际标准分类号】:81_080
【页数】:6P.;A4
【正文语种】: