ASTM D2489/D2489M-2008 沥青混合料的颗粒包复度评定的标准实施规程

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【英文标准名称】:StandardPracticeforEstimatingDegreeofParticleCoatingofBituminous-AggregateMixtures
【原文标准名称】:沥青混合料的颗粒包复度评定的标准实施规程
【标准号】:ASTMD2489/D2489M-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D04.23
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:bituminous-aggregatemixtures;bituminouspavingmixtures;particlecoating;Bituminous-aggregatemixtures;Bituminouspavingmixtures;Particlecharacterization
【摘要】:Theprocedureinthispracticeforestimatingthepercentageofcoatedparticlesaftervaryingmixingtimesisusedtoestablishtheleastmixingtimerequiredtoproducesatisfactorycoatingforagivensetofconditions.Thisprocedurecanalsobeusedtosamplecoldmixturesfromstockpilestodeterminethatsatisfactorycoatinghasbeenretainedinthestockpile.Thisprocedureisusedwithhot-mixed,hot-laidbituminouspavingmixturesorwithcold-mixed,cold-laidbituminouspavingmixturessuchasspecifiedinSpecificationD4215.Note18212;Evenwhenapavingmixturecomplieswiththex201C;percentofcoatedparticlesx201D;thatmaybespecified,thereisnoassurancethattheasphaltcementisuniformlydistributedthroughoutthemixture.Thispracticeshouldnotbeusedforacceptance/rejectionbyowneragencies.1.1Thispracticeprovidesanestimateofthedegreeofparticlecoatinginabituminous-aggregatemixtureonthebasisofthepercentageofcoarseparticlesclassifiedasbeingcompletelycoated.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E43
【国际标准分类号】:93_080_20
【页数】:2P.;A4
【正文语种】:英语


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基本信息
标准名称:电话磁石发电机技术条件
中标分类: 通信、广播 >> 通信设备 >> 电话通信设备
替代情况:替代GB/T 2648-1981
发布日期:
实施日期:1993-01-01
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所属分类: 通信 广播 通信设备 电话通信设备
Product Code:SAE J1062
Title:Snowmobile Passenger Handgrips
Issuing Committee:Snowmobile Technical Committee
Scope: This SAE Recommended Practice is intended to give information to engineers and designers in order that access to a passenger handgrip, when used, is easily obtained and that such handgrips offer maximum safety for a person at least as large as a 95th percentile adult male during snowmobile operation.