【英文标准名称】:StandardPracticeforDeterminingtheConsistencyofRefractoryCastableUsingtheBall-In-HandTest
【原文标准名称】:通过手中球试验测定耐火浆料坚实度的标准实施规程
【标准号】:ASTMC860-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:C08.09
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:可铸性;一致性;混合;耐熔的;需水量
【英文主题词】:castable;consistency;mixing;refractory;waterdemand
【摘要】:Thistestmethodisusedprimarilytodetermineifafreshlymixedrefractorycastableisoftheproperconsistencyandthereforewouldmostlikelyprovideoptimumperformance.Itcanalsobeusedtoestimatethecorrectwateradditionrateofacastablewheneitherthemanufacturer''sspecifiedwatercontentisnotavailableorwhenuniquecircumstanceshaverenderedthatrecommendationunusable.Thecorrectwatercontentisanimportantfactorthatmustbecontrolledtoobtainoptimumcastableperformance.Excesswatercanreducestrength,increasevolumeshrinkage,andpromotesegregationofthecastableingredients.Insufficientwatercanproducex201C;honeycombsx201D;(airvoids)inthecastablebecauseoftheinsufficientmobilityduringplacementandinextremecasescanpreventthecompletehydrationofthecement(ifused).TheBall-in-Handtestissubjectiveandsomewhatdependsontheskilloftheoperator.However,itisauniversallyaccessiblemethodduetothesimplicityoftheequipmentrequired,anditisreadilyusedinthefield.Thetotalwetmixingtimeofacastableinfluencestherheologicalandfinalpropertiesandthereforeshouldbemonitored.Thistestmethodcanbeperformedinalaboratoryoronajobsite.Thistestmethodisnotintendedtodeterminetheproperconsistencyforgunningapplications,althoughitmayprovideinformationofvalueforinterpretationbyaskilledoperator.1.1ThistestmethodcoverstheproceduresfordeterminingtheconsistencyofacastableusingtheBall-in-HandTest.Theamountofwaterusedinacastablehasasignificantinfluenceonitsperformance.1.2ThistestmethodappliestoregularweightcastablerefractoriesandinsulatingcastablerefractorieswhicharedescribedinClassificationC401.Italsoappliestosuchcastablescontainingmetalfibers.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(See6.2.3foraspecificsafetywarning.)
【中国标准分类号】:
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】: