高粘度改性沥青紫外光氧老化特性研究  

Study on ultraviolet aging characteristics of high viscosity modified asphalt

作　　者：黎晓 黄东 聂良鹏 张新为 赵毅 郑煜 LI Xiao;HUANG Dong;NIE Liang-peng;ZHANG Xin-wei;ZHAO Yi;ZHENG Yu(School of Materials Science and Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Broadvision Engineering Consultants,Kunming 650000,China;Yunnan Tongqu Engineering Testing Co.,Ltd.,Kunming 650000,China;CSCEC Road and Bridge Group Co.,Ltd.,Shijiazhuang 050001,China;China Merchants Chongqing Communications Research&Design Institute Co.,Ltd.,Chongqing 400067,China;Chongqing Shengzan Construction Engineering Co.,Ltd.,Chongqing 404100,China)

机构地区：[1]重庆交通大学材料科学与工程学院,重庆400074 [2]云南省交通规划设计研究院有限公司,云南昆明650000 [3]云南通衢工程检测有限公司,云南昆明650000 [4]中建路桥集团有限公司,河北石家庄050001 [5]招商局重庆交通科研设计院有限公司,重庆400067 [6]重庆晟赞建设工程有限公司,重庆404100

出　　处：《应用化工》2023年第8期2331-2336,共6页Applied Chemical Industry

基　　金：中国博士后科学基金资助项目(43XB3787XB);重庆市研究生联合培养基地建设项目(JDLHPYJD2021011);云南省基础研究专项(202301AT070413)。

摘　　要：制备了高粘度改性沥青,测试紫外老化历时后材料常规性能及材料特征官能团变化。结果表明,高粘改性剂能够有效改善沥青高温性能、抗剪切性能和抗老化性能。在紫外老化中,沥青老化行为主要是基沥青吸氧老化和高粘改性剂的分解,两者共同作用,导致沥青性能下降。常规性能测试和红外光谱实验结果表现一致,SBS+12%改性沥青的抗紫外老化性能最佳。The modified asphalt with high viscosity was prepared,and the changes of conventional properties and characteristic functional groups after ultraviolet aging were measured.The results show that the high viscosity agent can effectively improve the high temperature performance,shear resistance and aging resistance of asphalt.The aging behavior of asphalt in ultraviolet aging is mainly the oxygen absorption aging of base asphalt and the decomposition of high viscosity agent,which together lead to the decline of asphalt performance.The results of conventional performance test and infrared spectrum test are consistent,and the ultraviolet aging resistance of SBS+12%modified asphalt is the best.

关 键 词：高粘度改性沥青 紫外老化 红外光谱法 特征官能团 

分 类 号：TQ630.6[化学工程—精细化工] U416.217[交通运输工程—道路与铁道工程]