稀浆封层用水性环氧-乳化沥青的制备及配合比设计  

Preparation and Mix Design of Waterborne Epoxy-Emulsified Asphalt for Slurry Seal

作　　者：王佳炜[1] 李力[1] 赵可[1] 周超[1] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074

出　　处：《公路工程》2014年第6期66-68,81,共4页Highway Engineering

基　　金：国家自然科学基金资助项目(51178491);交通运输部建设科技项目(2014-318-346-140)

摘　　要：采用水性环氧树脂与乳化沥青共混的方法,制备出稀浆封层用水性环氧—乳化沥青。通过砂浆块抗折试验、荧光显微镜分析,对水性环氧—乳化沥青的粘结强度与微观结构进行研究,并得出最佳掺配比例;通过《公路工程沥青及沥青混合料试验规程》中稀浆封层的各项试验方法,确定了稀浆封层用水性环氧—乳化沥青混合料的配合比。结果表明:一定量水性环氧的加入能够提高乳化沥青的粘结强度,二者最佳掺配比例为32∶68;最佳掺配比例下的水性环氧—乳化沥青适用于稀浆封层技术,优化出的配合比能够满足稀浆封层技术的各项指标要求。Utilized the method of blending water-based epoxy resin and emulsified asphalt to syn- thesize the waterborne epoxy-emulsified asphalt for slurry seal. Based on the bending test of block mortar and fluorescence microscopy analysis, a research on bond strength and microstructure had been done, and the best recipe of waterborne epoxy-emulsified asphalt was acquired. According to the method of ＂Highway Asphalt and Asphalt Testing Procedures＂, the mixing ratio of waterborne epoxy-emulsified asphalt for slurry seal mix was ensured. Results showed that： a certain amount of waterborne epoxy was able to strengthen the bond strength to emulsified asphalt, and the best ratio was 32： 68. Waterborne epoxy-emulsified asphalt was suitable for slurry seal technology, optimized ratio was able to satisfy the requirement of the slurry seal technology.

关 键 词：水性环氧 乳化沥青 稀浆封层 配合比设计 

分 类 号：U414.1[交通运输工程—道路与铁道工程]