ASTM C1445-2007 用流动稠度试验台测量可浇注耐火材料粘稠度的标准试验方法

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【英文标准名称】:StandardTestMethodforMeasuringConsistencyofCastableRefractoryUsingaFlowTable
【原文标准名称】:用流动稠度试验台测量可浇注耐火材料粘稠度的标准试验方法
【标准号】:ASTMC1445-2007
【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】:C08.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:混凝土;粘稠度;流动;流动台;测量;混合;耐火的;耐火材料;表;桌子;试验方法
【英文主题词】:castable;concrete;consistency;flow;flow-table;mixing;refractory
【摘要】:Theamountofwaterusedinacastablemixforpreparingtestspecimenshasasignificantinfluenceonsubsequenttestresults.Thistestmethodisusedprimarilytodetermineandreproducetheconsistencyrequiredfortheoptimumcastingofrefractorycastablesinthepreparationoftestspecimensandtoexpressthatconsistencyquantitatively.Thecorrectwatercontentisoneofthemajorfactorsthatmustbecontrolledtoobtainuniformtestspecimens.Excesswatercanreducestrength,increasevolumeshrinkage,andpromotesegregationofthecastableingredients.Insufficientwatercanproducex201C;honeycombsx201D;(airvoids)inthecastablebecauseofpoorconsolidationduringplacementandpreventcompletehydrationofcement.Theflowtable(seesketchesinSpecificationC230/C230M)hasbeenfoundtobeanexcellenttoolformeasuringtheconsistencyofacastableandshouldbeusedincaseswhereanumericalresultisrequired.Sincecastablesdiffersomewhatintheirx201C;bodyx201D;orplasticity,ithasbeenfoundthatagoodcastingrange,expressednumerically,mightvaryfromcastabletocastable.Whileonematerialmaycastwellbetween40and60%flow,anothermaterialmayneedtobeinthe60to80%flowrangetoproperlyflow.Becauseofthis,ithasbeenfoundthatnoarbitraryoptimumrangecanbestatedforallcastables.Theflowtablethenbecomesatoolformeasuringtheflowandnotdeterminingit.Itcanallowtheoperatortofollowthemanufacturerrsquo;recommendationsortoreproducetheconsistencyofaparticularcastablebetweenlaboratories.Totaltimeofwetmixingmustbecloselycontrolledtoobtainreproducibleresults.Thistestmethodisnotintendedtobeusedtodeterminetheproperwatercontentforgunningapplications,althoughitmayprovideinformationofvalueforinterpretationbyaskilledoperator.1.1Thistestmethodcoverstheprocedurefordeterminingtheconsistencyofcastablerefractorymixesbytheflowtablemethod.1.2Thistestmethodappliestoregularweightcastablerefractories,insulatingcastablerefractories,andcastablerefractoriesthatrequireheavyvibrationforforming,whicharedescribedinClassificationC401.Theyalsoapplytosuchcastablescontainingmetalfibers.1.3Thevaluesstatedininch-pound-unitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】: