环氧沥青流变模型及施工容留时间研究  

Research on Rheological Model and Construction Time Range of Epoxy Asphalt

作　　者：罗桑[1] 钱振东[1] 沈家林[2] 闵召辉[1] 

机构地区：[1]东南大学智能运输系统研究中心,江苏南京210096 [2]上海市政工程设计研究总院,上海200092

出　　处：《建筑材料学报》2011年第5期630-633,共4页Journal of Building Materials

基　　金：国家自然科学基金资助项目(50878053);"十一五"国家科技支撑计划项目(2009BAG15B03);国家留学基金资助项目(2008609015)

摘　　要：为了获得环氧沥青混合料的施工容留时间以保障铺装工程的施工质量,基于化学流变理论,采用双Arrhenius公式获得了环氧沥青黏度增长模型及计算公式,结合该模型,选取1.00～3.00Pa·s作为环氧沥青混合料摊铺、碾压的控制黏度,确定了该混合料在不同施工温度下的施工容留时间节点.结果表明:环氧沥青黏度增长模型与实测数据较为吻合,其混合料施工容留时间节点的确定,可以有效指导实际工程,避免铺装层离析、摊铺困难以及碾压不实等情况出现.To obtain the allowable time range for construction of epoxy asphalt mixes and quality assurance of pavement, the model and calculation formula Of viscosity-time-temperature was studied with double-Arrhenius formula based on chemo-rheology theory. And then, the allowable time range for construction of epoxy asphalt mixes at different temperatures were obtained with 1.00 Pa · s and 3.00 Pa · s taken as paving and compaction control viscosity. Findings indicate that the viscosity-time-temperature model of epoxy asphalt is accurate and efficient. And the allowable time range for construction is useful for engineering construction, and the segregation of mixture will not occur.

关 键 词：环氧沥青 化学流变 黏度 容留时间 施工 

分 类 号：U414.1[交通运输工程—道路与铁道工程]