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Hot Mixing Behavior and Curing Process of Epoxy Asphalt

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【作者】李华伟； WEI Wei； ZHANG Chao； XU Feifan； LI Xin； JING Peng；朱泉峣； DING Qingjun； YAN Boxiang；

【Author】 LI Huawei;WEI Wei;ZHANG Chao;XU Feifan;LI Xin;JING Peng;ZHU Quanyao;DING Qingjun;YAN Boxiang;School of Materials Science and Engineering, Wuhan University of Technology;Department of Physics, Changji University;State Key Laboratory of Silicate Engineering Center, Wuhan University of Technology;

【通讯作者】朱泉峣;

【机构】 School of Materials Science and Engineering, Wuhan University of Technology； Department of Physics, Changji University； State Key Laboratory of Silicate Engineering Center, Wuhan University of Technology；

【摘要】 A new hot mixed epoxy asphalt system was developed.The reaction process of epoxy resin was characterized by Fourier transform infrared spectroscopy (FTIR).The viscosity was investigated by Brinell viscometer when epoxy resin was mixed with asphalt.The glass transition temperature (T_g),homogeneity,thermal stability and viscoelasticity of epoxy asphalt were analyzed by differential scanning calorimetry (DSC),metallographic microscope,thermogravimetric (TG) and dynamic mechanical analysis (DMA).The results showed that the viscosity of epoxy resin modified asphalt reached 1 000 mPa·s for more than 180 minutes at 180 ℃,while the best construction process is mixing at 180 ℃ for 2 hours and curing at 60 ℃ for 4 days.The particle size of asphalt is less than 50 μm.In addition,the mechanical properties of the materials are uniform within the specified pavement thickness.更多还原

【Abstract】 A new hot mixed epoxy asphalt system was developed.The reaction process of epoxy resin was characterized by Fourier transform infrared spectroscopy (FTIR).The viscosity was investigated by Brinell viscometer when epoxy resin was mixed with asphalt.The glass transition temperature (T_g),homogeneity,thermal stability and viscoelasticity of epoxy asphalt were analyzed by differential scanning calorimetry (DSC),metallographic microscope,thermogravimetric (TG) and dynamic mechanical analysis (DMA).The results showed that the viscosity of epoxy resin modified asphalt reached 1 000 mPa·s for more than 180 minutes at 180 ℃,while the best construction process is mixing at 180 ℃ for 2 hours and curing at 60 ℃ for 4 days.The particle size of asphalt is less than 50 μm.In addition,the mechanical properties of the materials are uniform within the specified pavement thickness.更多还原

【关键词】 epoxy asphalt； FTIR； curing process； viscosity； dispersed；
【Key words】 epoxy asphalt； FTIR； curing process； viscosity； dispersed；

【基金】 Funded by the Fundamental Research Funds for the Central Universities (No. 195201039);National Science Foundation of China (Nos. 51472189 and 51373129)

【文献出处】 Journal of Wuhan University of Technology(Materials Science) ,武汉理工大学学报(材料科学版)(英文版) , 编辑部邮箱 ,2020年03期

【分类号】TE626.86
【被引频次】1
【下载频次】33

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