【英文标准名称】:StandardTestMethodforDeterminationofPack-SetIndexofPortlandCement
【原文标准名称】:测定硅酸盐水泥填充固着指数的标准试验方法
【标准号】:ASTMC1565-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C01.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:packset;pack-setindex;peakvoltage;portlandcement;roto-tester;Cement;Consolidation;Fieldperformanceofcementflowability;Maximumvoltage;Mechanicalforce;Pack-setindex;Performance--buildingmaterials/applications;Portlandcement;Roto
【摘要】:Thismethodisintendedtohelpmanufacturersdeterminetherelativepack-settendencyoftheircement(s).Thetestestablishesapack-setindexwhich,whenproperlycorrelatedwithfieldperformance,isusefulinpredictingorpreventingfieldunloadingdifficulties.Thetestisanaidtoroutinecontrolduringcementproductionandisnotsuitableforspecificationpurposes.Ingeneral,fieldperformanceofcementflowabilityissatisfactorywhenthepack-setindexasdeterminedonfreshlygroundcementaverages0to15andisunsatisfactorywhentheindexexceeds25.Anypredictionoffieldperformanceofcementflowabilitymeasuring16to25istenable.Thesearegeneralrangesandthefieldperformanceofindividualcementsmaynotnecessarilyfallwithintheseranges.Additionalconditions,afterthecementhasleftthecontrolofthemanufacturingfacility,canaffecttheapparentpacksetindexaswell.Anyattempttoapplythecriticalrangeofpack-setindexnumbersbasedonfreshlygroundcementtojobcementwithoutspecialtreatmentofthesamplewouldbeproblematic.Thetestisax201C;GO-NOGOx201D;typeoftestandshouldnotbeusedforspecificationpurposes.Thepack-setindexoffieldcementcanbeevaluatedintermsofthepack-setindexrangesofthatcementasdeterminedwhenfreshly-ground.Thiscomparisoncanaidthemanufacturerinproducingcementthatoffersthebestfieldperformanceforpack-setproperties.Silostorageofcementmayresultinagreateramountofconsolidationthanthismethodisdesignedtoinduce,andtheresultingforcesrequiredtoovercomethatconsolidationarenotmeasuredbythistestmethod.Packsetisnottobeconfusedwithx201C;warehousesetx201D;whichresultsfromsurfacehydrationofthecementfromadsorbedmoisture.1.1Thistestmethodcoversthedeterminationofthepack-setindex,whichprovidesanindicationofthemechanicalforceneededtoovercometheconsolidationofportlandcement.1.2Thepack-setindexnumberprovidesanumericalvalueusefulformanufacturerswhodesiretomeasureandcontroltheeffectthatvibration-inducedconsolidationhasuponthemanufacturedcement.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.ValuesstatedinSIunitsshallbeobtainedbymeasurementinSIunitsorbyappropriateconversion,usingtherulesofConversionandroundinggiveninStandardIEEE/ASTMSI10,ofmeasurementsmadeinotherunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WARNINGx2014;Freshhydraulic-cementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:Q11
【国际标准分类号】:91_100_10
【页数】:4P.;A4
【正文语种】:英语