DB63/720-2008 青棵巴青1号
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来源:标准资料网
基本信息
| 标准名称： | 青棵巴青1号 |
| 发布部门： | 青海省质量技术监督局 |
| 发布日期： | 2008-01-01 |
| 实施日期： | 2008-06-10 |
| 首发日期： | |
| 作废日期： | |
| 主管部门： | 青海省质量技术监督局 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2008-06-10 |
适用范围
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前言
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引用标准
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所属分类： 综合 标准化管理与一般规定 标准化 质量管理 社会学 服务 公司(企业)的组织和管理 行政 运输 质量 质量管理和质量保证
【英文标准名称】:StandardTestMethodforEarlyStiffeningofHydraulicCement(MortarMethod)
【原文标准名称】:硅酸盐水泥早硬的标准试验方法(灰浆法)
【标准号】:ASTMC359-2008
【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】:C01.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:earlystiffening;falseset;flashset;hydraulic-cementmortar;Cementmortars;Earlystiffening;Mortarmethod;Mortar(portlandcementmortar);Portlandcement;Stiffness
【摘要】:Thepurposeofthistestmethodistodeterminethedegreetowhichacementmortardevelopsearlystiffening.Itisintendedforusebythoseinterestedinmethodsfordeterminingthepotentialearlystiffeningofhydrauliccement.Whenusedforestimatingtherelativetendencyofacementtomanifestearlystiffening,ajudgmentmaybemadebycomparingthebehaviorinthepenetrationseries(see10.4.1and10.4.2)andtheremixprocedure(see10.4.3)todifferentiatearelativelylessseriousandlesspersistenttendencytoearlystiffening(falseset)fromonethatismorepersistentand,consequently,moreserious(flashset).Severefalsesettinginacementmaycausedifficultyfromaplacingandhandlingstandpoint,butitisnotlikelytocausedifficultieswhereconcreteismixedforalongertimethanusual,asusuallyoccursintransitmixing,orwhereitisremixedpriortoplacingortransporting,inconcretepumpingoperations.Itismostlikelynoticedwhereconcreteismixedforashortperiodoftimeinstationarymixersandtransportedtotheformsinnon-agitatingequipment,asonsomepavingjobs,andwhenconcreteismadeinanon-sitebatchplant.Cementswithseverefalsesettingusuallyrequireslightlymoremixingwatertoproducethesameconsistency,whichmayresultinslightlylowerstrengthsandincreaseddryingshrinkage.Earlystiffeningresultingfromfalsesetisnotlikelytocauseacementtofailtheapplicabletimeofsettingrequirement.Earlystiffeningresultingfromflashset,dependingonseverity,cancauseacementtofailtheapplicabletimeofsettingrequirement.1.1Thistestmethodcoversthedeterminationofearlystiffeninginhydraulic-cementmortar.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Warningx2014;Freshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.Theuseofgloves,protectiveclothing,andeyeprotectionisrecommended.Washcontactareawithcopiousamountsofwateraftercontact.Washeyesforaminimumof15min.Avoidexposureofthebodytoclothingsaturatedwiththeliquidphaseoftheunhardenedmaterial.Removecontaminatedclothingimmediatelyafterexposure.)1.4Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.
【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
MIL-STD-1233, MILITARY STANDARD: PROCEDURES FOR DETERMINING PARTICLE SIZE, PARTICLE SIZE DISTRIBUTION, AND PACKED DENSITY OF POWDERED MATERIALS (21 MAR 1962) [SUPERSEDING MIL-STD-707] [NO S/S DOCUMENT]., This standard describes the general methods for determining particle size, particle size distribution, and packed density of powered materials for conformance with the material requirements of applicable specifications.
