A comprehensive review on polyurethane modified asphalt: Mechanism, characterization and prospect

作     者：Peiliang Cong Changhao Liu Zhiyu Han Yuanfeng Zhao Peiliang Cong;Changhao Liu;Zhiyu Han;Yuanfeng Zhao

作者机构：School of Materials Science and EngineeringChang'an UniversityXi'an 710064China 

出 版 物：《Journal of Road Engineering》 (道路工程学报（英文）)

年 卷 期：2023年第3卷第4期

页      面：315-335页

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(51978070,51978072) Key Research and Development Plan Project of Shaanxi Province(2023-YBSF-110) the Fundamental Research Funds for the Central Universities,CHD(300102313206) 

主　　题：Polyurethane modified asphalt Mechanisms Performance Development 

摘      要：Polyurethane(PU),with excellent physical and chemical properties and high designability,is one of the ideal materials for asphalt modification in the *** this paper,based on the limitations of traditional asphalt modifiers,the preparation process,relative advantages and development prospects of PU as asphalt modifiers are ***,the spatial structure,physical and chemical properties of PU synthetic raw materials were combined with the modification properties of PU to analyze the effect and influence of PU on asphalt ***,polyurethane modified asphalt(PUMA)is divided into thermoplastic polyurethane modified asphalt(TP-PUMA)and thermosetting polyurethane modified asphalt(TS-PUMA).The gain effect of TPPUMA in high-temperature performance,low-temperature performance,aging resistance,fatigue resistance,weathering performance and bonding performance is *** addition,it has good storage *** excellent road performance,TS-PUMA makes up for the shortcomings of epoxy asphalt in terms of lowtemperature performance and ***,due to the development trend of functional diversification of modified asphalt,the research basis and status of several new modified asphalts based on PU properties are *** the systematic study of PUMA is insufficient,this paper proposes corresponding *** provide guidance and ideas for the research of PU modified asphalt.