基本信息
| 标准名称： | H170系列全液压掘进钻车 |
| 中标分类： |
机械 >>
通用机械与设备 >>
凿岩机械 |
| 发布日期： | 1993-07-29 |
| 实施日期： | 1994-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2005-04-15 |
| 出版日期： | 1900-01-01 |
| 页数： | 9页 |
适用范围
本标准规定了H170系列全液压掘进钻车的品种、技术要求、试验方法、检验规则及标志、包装、运输和贮存。本标准适用于H170系列全液压掘进钻车。
前言
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引用标准
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所属分类： 机械 通用机械与设备 凿岩机械
【英文标准名称】:StandardTestMethodforResistanceofConcretetoRapidFreezingandThawing
【原文标准名称】:混凝土抗急速冻结溶解性能测试的标准试验方法
【标准号】:ASTMC666/C666M-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:C09.67
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acceleratedtesting;concrete-weatheringtests;conditioning;freezingandthawing;resistance-frost;Acceleratedaging/testing--concrete;Concreteweatheringtests;Freezingandthawing--concrete/aggregate;Frostresistance;Rapidfreezing/thawing;Te
【摘要】:Asnotedinthescope,thetwoproceduresdescribedinthistestmethodareintendedtodeterminetheeffectsofvariationsinbothpropertiesandconditioningofconcreteintheresistancetofreezingandthawingcyclesspecifiedintheparticularprocedure.SpecificapplicationsincludespecifieduseinSpecificationC494/C494M,TestMethodC233,andrankingofcoarseaggregatesastotheireffectonconcretefreeze-thawdurability,especiallywheresoundnessoftheaggregateisquestionable.Itisassumedthattheprocedureswillhavenosignificantlydamagingeffectsonfrost-resistantconcretewhichmaybedefinedas(1)anyconcretenotcriticallysaturatedwithwater(thatis,notsufficientlysaturatedtobedamagedbyfreezing)and(2)concretemadewithfrost-resistantaggregatesandhavinganadequateair-voidsystemthathasachievedappropriatematurityandthuswillpreventcriticalsaturationbywaterundercommonconditions.Ifasaresultofperformancetestsasdescribedinthistestmethodconcreteisfoundtoberelativelyunaffected,itcanbeassumedthatitwaseithernotcriticallysaturated,orwasmadewithx201C;soundx201D;aggregates,aproperair-voidsystem,andallowedtomatureproperly.Norelationshiphasbeenestablishedbetweentheresistancetocyclesoffreezingandthawingofspecimenscutfromhardenedconcreteandspecimenspreparedinthelaboratory.1.1Thistestmethodcoversthedeterminationoftheresistanceofconcretespecimenstorapidlyrepeatedcyclesoffreezingandthawinginthelaboratorybytwodifferentprocedures:ProcedureA,RapidFreezingandThawinginWater,andProcedureB,RapidFreezinginAirandThawinginWater.Bothproceduresareintendedforuseindeterminingtheeffectsofvariationsinthepropertiesofconcreteontheresistanceoftheconcretetothefreezing-and-thawingcyclesspecifiedintheparticularprocedure.Neitherprocedureisintendedtoprovideaquantitativemeasureofthelengthofservicethatmaybeexpectedfromaspecifictypeofconcrete.1.2Thevaluesstatedineitherinch-poundunitsorSIunitsshallberegardedseparatelyasstandard.TheSIunitsareshowninbrackets.Thevaluesstatedmaynotbeexactequivalents;thereforeeachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwounitsmayresultinnonconformance.1.3AllmaterialinthistestmethodnotspecificallydesignatedasbelongingtoProcedureAorProcedureBappliestoeitherprocedure.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:6P.;A4
【正文语种】:英语