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时间:2020-06-06
《道路混凝土分层结构评价方法与指标研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第31卷增-r,l1重庆交通大学学报(自然科学版)V01.31Supp.1垫!!垒!旦些!!些堡!墅!!墅些里!!塑墼墅!堕坠f!!!g!!!!!!!!塑』坚!;型!DOI:10.3969/j.issn.1674—0696.2012,supp.1.46ResearchonMethodsandEvaluationIndexesaboutHierarchicalStructureofConcreteRoadYueAijunl一,LiangJunlin3,LiXinron94(1.SchoolofTr
2、affic&TransportationEngineering.ChangshaUniversityofScienceandTechnology。Changsha410004.Hunan.China;2.GunngxiCommunicationsScienceResearchAcademy,Nanning530007,Guangxi,China;Construction3.GuangxiTransportationQualitySupervisionStation,Nanning530012,G
3、uangxi,China;4.SchoolofMaterialScience&Engineering,GuilinUniversityofElectronicTechnology,Guilin541004,Guangxi,China)Abstract:Themethodsandevaluationindexesaboutoutersegregationandinnersegregationofconcreteroadbymechanismandtestdataonthenumberofentit
4、iesinquiring.experimentanalyzingrefiningpmjectwemstudied,thenthecontroltech-nolagyforconstructionvariabilityofpavementconcretewaspmpesed.Itsuggestedthattheindexesforvariabilityofdensityandwaterabsorptioncallbeusedtoevaluatethehierarchicalstructurewhi
5、chincludedoutersegregationandinnersegrega-tion.Theresultsprovidedbasisforplmmingconstructiontechnologyofconcreteinwhichtheofinnerseg—pavementformingandoutermustbecontrolled.regationsegregationKeywords:cementconcrslepavement;outersegregation;innersegr
6、egation道路混凝土分层结构评价方法与指标研究岳爱军1’2,梁军林3,黎新蓉4(1.长沙理T大学交通运输T程学院,中国湖南长沙410004;2.广西交通科学研究院,中国广西南宁530007;3.广西交通工程质量监督站,中国广西南宁5300121;4.桂林电子科技大学材料科学与一r程学院,中国广西桂林541004)摘要:结合机理探寻、试验分析和对大量实体工程检测数据的提炼集成,系统研究了道路混凝土外分层与内分层结构,建立起混凝土分屡结构模型及评价方法。建议采用密度变异性和吸水率变异性指标评价道
7、路混凝土外分层和内分层结构,为_lI艺控制道路混凝土内、外分层奠定了基础。关键词:道路混凝土;外分层;内分层中图分类号:U414文献标志码:A文章编号:1674-0696(2012)supp.1-0733—060Introductioncentrifugalandvibratewastoextractslurry.Themeth.odswhichmentionedaboveforminnersegregationIntheoftoextractoftheprocessvibratingslurr
8、ystructureseasily,andinnersegregationisoneoftheconcreteroad,outersegregationisaninevitablephe—theofthesolidmostimportantfactorsofthevariabilityofconcrete.nomenon,becausesettlingvelocitypar-Thewaterabsorptioncallreflectthecompactnessoftheticlesisdiffe
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