【英文标准名称】:StandardTestMethodforModulusofRuptureofCarbon-ContainingRefractoryMaterialsatElevatedTemperatures
【原文标准名称】:升温时含碳耐火材料的断裂模数用标准试验方法
【标准号】:ASTMC1099-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C08.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:断裂伸长;耐火材料;测试
【英文主题词】:carbon-containing;modulusofrupture;refractories;strength
【摘要】:Themodulusofruptureofcarbon-containingrefractoriesatelevatedtemperatureshasbecomeacceptedasausefulmeasurementinqualitycontroltestingandinresearchanddevelopment.Thesemeasurementsarealsousedtodeterminethesuitabilityofparticularproductsforvariousapplicationsandtodevelopspecifications.Thesamplemayundergosomeoxidationduringthetest.In1988,ruggednesstestingwasconductedonthistestprocedure.Thefollowingvariableswerestudied:3.2.1Testingtemperature(2525(1385)versus2575x00B0;F(1413x00B0;C)),3.2.2Airatmosphereversusargonatmosphereinthefurnace,3.2.3Holdtimepriortobreakingthesample(12versus18min),and3.2.4Loadingrateonthesample(175(778)versus350lb/min(1556N/min)).Resinbondedmagnesia-carbonbrickcontainingapproximately17%carbonaftercokingwheretestedintwoseparateruggednesstests.Metal-freebrickweretestedinthefirstruggednesstest,whilealuminum-containingbrickweretestedinthesecond.Resultswereanalyzedata95%confidencelevel.Forthemetal-freebrick,thepresenceofanargonatmosphereandholdtimehadstatisticallysignificanteffectsonthemodulusofruptureat2550x00B0;F(1400x00B0;C).Theargonatmosphereyieldedalowermodulusofrupture.Thesamplestestedinairhadawell-sintereddecarburizedzoneontheexteriorsurfaces,possiblyexplainingthehighermoduliofrupture.Thelongerholdtimecausedalowerresultforthemetal-freebrick.Forthealuminum-containingbrick,testingtemperature,thepresenceofanargonatmosphere,andloadingratehadstatisticallysignificanteffectsonthemodulusofruptureat2550x00B0;F(1400x00B0;C).Thehighertestingtemperatureincreasedthemeasuredresult,thepresenceofanargonatmosphereloweredtheresult,andthehigherloadingrateincreasedtheresult.1.1Thistestmethodcoversthedeterminationofthemodulusofruptureofcarbon-containingrefractoriesatelevatedtemperaturesinair.1.2Thevaluesstatedininch-poundunitsanddegreesFahrenheitaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection5.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】: