相容剂对冷施工环氧沥青微观结构及性能的影响  

Effect of Compatilizer on the Microstructure and Properties of Cold-Mixed Epoxy Asphalt

作　　者：徐仁华 徐建晖 况振华 王杰 刘誉贵 Xu Renha;Xu Jianhui;Kuang Zhenhua;Wang Jie;Liu Yugui(Wenshan Autonomous Prefecture Guangna Highway Investment Construction Development Co.,Ltd.,Wenshan Zhuang and Miao Autonomous Prefecture 663300;Chongqing Lantech Pavements Technology Engineering Co.,Ltd.,Chongqing 400000)

机构地区：[1]文山州广那高速公路投资建设开发有限公司,文山663300 [2]重庆市智翔铺道技术工程有限公司,重庆400000

出　　处：《石油沥青》2020年第5期65-70,共6页Petroleum Asphalt

摘　　要：为探究相容剂对CM冷拌环氧沥青体系相容性及环氧沥青力学性能的影响,利用光学显微镜微观试验、动态热机械分析等方法研究了冷拌环氧沥青的相结构及力学性能。微观试验结果表明:在添加相容剂的环氧沥青体系中,沥青均匀分布于环氧树脂形成的连续相中,体系呈现“海-岛”结构。而且,动态热机械分析(DMA)试验进一步证实了环氧树脂与沥青之间的良好相容性。因此,相容剂对提高环氧沥青体系相容性以及改善环氧沥青混合物的力学性能具有重要作用。To explore the effects of compatibilizer on the compatibility of cold-mixed epoxy asphaltsystem and the mechanical properties of epoxy asphalt,optical microscope micro experiments and dynamicthermomechanical analysis are employed to study the phase structure and mechanical properties of cold-mixed epoxy asphalt.The microscopic experiment results show that the asphalt is evenly distributed in thecontinuous phase formed by epoxy resin in the epoxy asphalt system with compatibilizer,and the systemexhibits a"sea-island"structure.Moreover,the dynamic thermomechanical analysis(DMA)test furtherconfirmed the good compatibility between epoxy resin and asphalt.Therefore,the compatibilizer plays animportant role in enhancing the compatibility of the epoxy asphalt system and improving the mechanicalproperties of the epoxy asphalt mixture.

关 键 词：环氧沥青 相容性 玻璃化转变温度 微观结构 

分 类 号：U414[交通运输工程—道路与铁道工程]