DCLR Modifi ed Petroleum Asphalt Optimization and Mixture Road Performance  

作　　者：Yifan Chu Tao Li Jiaying Ding Zhenmin Liu Yongbing Xue 

机构地区：[1]College of Chemistry and Biological Engineering,Taiyuan University of Science and Technology,Taiyuan,Shanxi,030000,China

出　　处：《Frontiers Research of Architecture and Engineering》2022年第1期10-18,共9页建筑与工程前沿研究（英文）

摘　　要：In recent decades,modified asphalt materials have been used in enhancing the traffic load on the roads.The main objective of this paper is to explore the modifi cation effect of direct coal liquefaction residue(DCLR)on as-phalt binders and investigate the effectiveness of DCLR in improving the performance of asphalt road.This paper prepared modifi ed petroleum as-phalt under diff erent process conditions and tested its penetration,softening point and ductility index.Based on the experimental data,according to gray correlation degree,the performance for the asphalt was compared.The performance for the modified asphalt is simulated and predicted using poly-nomial functions.The modifi ed asphalt was analyzed by FT-IR,TGA,SEM and HPLC.The results show that the optimal process conditions for DCLR modifi ed asphalt are shear mixing time of 45 min,shear mixing tempera-ture of 150℃ and shear mixing rate of 4000 r/min.The predicted fit with the experimental data of 0.993 further demonstrates the effectiveness of the method.The characterization results show no significant chemical change between the DCLR and the asphalt.DCLR can significantly improve the high temperature performance and water stability of the asphalt,but it has little impact on its low temperature performance.

关 键 词：Orthogonal design DCLR modified asphalt Asphalt mixture Coal liquefaction residue Microscopic composition 

分 类 号：TE6[石油与天然气工程—油气加工工程]