In order to evaluate the effect and mechanism of composite modifiers on the anti-aging property of asphalt, this study selected hydrotalcite and ultraviolet absorber as anti-aging modifiers to prepare different types of modified asphalt and carry out ultraviolet aging treatment. The effects of composite modification on the physical and rheological properties of asphalt under ultraviolet aging conditions were studied by three indices and by dynamic shear rheometer. The distribution and interaction characteristics of composite modifiers in asphalt matrix were analyzed by scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS). Fourier transform infrared spectroscopy (FTIR) was used to analyze the changes in functional groups and characteristic parameters in the compound modified asphalt. Based on this, a molecular dynamics model of the compound modified asphalt was constructed, and the changes in solubility parameters, free volume, and mean azimuth shift were analyzed. The results show that the addition of the compound modifier can significantly improve the UV aging resistance of asphalt, mainly by controlling the asphalt components and characteristic functional groups, and the good compatibility between the modifier and asphalt ensures the modification effect.
机构:
Changan Univ, Sch Highway, Xian 710064, Peoples R China
Changan Univ, Key Lab Rd Struct & Mat, Transport Minist, Xian 710064, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
Liu, Junlong
Chu, Lijing
论文数: 0引用数: 0
h-index: 0
机构:
Guangzhou Urban Planning & Design Survey Res Inst, Guangzhou 510060, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
Chu, Lijing
Zhao, Tianyuan
论文数: 0引用数: 0
h-index: 0
机构:
Guangdong Nanyue Transportat Investment & Construc, Guangzhou 510000, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
Zhao, Tianyuan
Zhu, Yunchu
论文数: 0引用数: 0
h-index: 0
机构:
Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
Zhu, Yunchu
Cang, Zhi
论文数: 0引用数: 0
h-index: 0
机构:
Shanxi Transportat Holding Grp Co Ltd, Datongbei Expressway Management Co Ltd, Taiyuan 030006, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
Cang, Zhi
Chen, Qian
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Peoples R China
Changan Univ, Key Lab Rd Struct & Mat, Transport Minist, Xian 710064, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
Chen, Qian
Yuan, Junshen
论文数: 0引用数: 0
h-index: 0
机构:
Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Peoples R China
机构:
Nanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
Jiangsu Vocat Coll Agr & Forestry, Nanjing, Jiangsu, Peoples R ChinaNanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
Xu, Wenjuan
Zhang, Kai
论文数: 0引用数: 0
h-index: 0
机构:
Jiangxi Transportat Inst, Rd & Mat Dept, Nanchang, Jiangxi, Peoples R ChinaNanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
Zhang, Kai
Yang, Zhengjun
论文数: 0引用数: 0
h-index: 0
机构:
Nanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
Jurong Transportat Bur, Jurong, Jiangsu, Peoples R ChinaNanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
Yang, Zhengjun
Du, Hongwei
论文数: 0引用数: 0
h-index: 0
机构:
Nanchang Highway Adm, Nanchang, Jiangxi, Peoples R ChinaNanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
Du, Hongwei
Zhu, Yaoting
论文数: 0引用数: 0
h-index: 0
机构:
Jiangxi Transportat Inst, Rd & Mat Dept, Nanchang, Jiangxi, Peoples R ChinaNanjing Forestry Univ, Nanjing, Jiangsu, Peoples R China
机构:
Southeast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R ChinaSoutheast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R China
Sun, Lijun
Gu, Xingyu
论文数: 0引用数: 0
h-index: 0
机构:
Southeast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R China
Tibet Univ, Coll Engn, Lhasa 850000, Xizang, Peoples R ChinaSoutheast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R China
Gu, Xingyu
Hu, Dongliang
论文数: 0引用数: 0
h-index: 0
机构:
Southeast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R ChinaSoutheast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R China
Hu, Dongliang
Zhou, Zhou
论文数: 0引用数: 0
h-index: 0
机构:
Southeast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R ChinaSoutheast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R China
Zhou, Zhou
Wang, Guoliang
论文数: 0引用数: 0
h-index: 0
机构:
Southeast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R ChinaSoutheast Univ, Sch Transportat, Nanjing 211189, Jiangsu, Peoples R China
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
Li, Kenan
Yan, Xili
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
Yan, Xili
Wang, Yujie
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
Wang, Yujie
Zhang, Yiming
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
Zhang, Yiming
Ai, Tao
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Mat Sci & Engn, Xian 710064, Shaanxi, Peoples R China
126,Middle Sect Erhuan Nan Lu, Xian, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
Ai, Tao
Yu, Liuyang
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
Yu, Liuyang
You, Qinglong
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
You, Qinglong
Chen, Yu
论文数: 0引用数: 0
h-index: 0
机构:
Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China
机构:
China Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R ChinaChina Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R China
Guo, Xinlu
Luo, Junjie
论文数: 0引用数: 0
h-index: 0
机构:
China Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R ChinaChina Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R China
Luo, Junjie
Qi, Jingyi
论文数: 0引用数: 0
h-index: 0
机构:
China Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R ChinaChina Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R China
Qi, Jingyi
Zhao, Xiya
论文数: 0引用数: 0
h-index: 0
机构:
China Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R ChinaChina Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R China
Zhao, Xiya
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机构:
An, Peng
Luo, Yongting
论文数: 0引用数: 0
h-index: 0
机构:
China Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R ChinaChina Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R China
Luo, Yongting
Wang, Guisheng
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Peoples Liberat Army Gen Hosp, Med Ctr 3, Dept Radiol, Beijing 100039, Peoples R ChinaChina Agr Univ, Dept Nutr & Hlth, Beijing 100193, Peoples R China