橡胶沥青及混合料低温性能研究进展  

Progress of Research on Rubber Asphalt and Mixture in Low-temperature Performance

作　　者：王尉[1] 何亮[1,2,3] 王大为[4] 凌天清[1] 肖飞鹏 

机构地区：[1]重庆交通大学交通土建工程材料国家地方联合工程实验室,重庆市400074 [2]诺丁汉大学交通工程研究中心 [3]长安大学特殊地区公路工程教育部重点实验室,西安市710064 [4]德国亚琛工业大学亚琛道路工程研究所,德国亚琛市52074 [5]同济大学道路与交通工程教育部重点实验室,上海市201804

出　　处：《公路》2016年第1期181-187,共7页Highway

基　　金：国家自然科学基金项目;项目编号51308572;中国博士后科学基金项目;项目编号2014M562361;交通土建工程材料国家地方联合工程实验室开放基金;项目编号LHSYS-2014-010;道路结构与材料交通行业重点实验室(长沙)开放基金;项目编号kfj140303

摘　　要：综合国内外最新研究成果对橡胶沥青及混合料低温性能展开了全面地分析,介绍了废旧轮胎橡胶粉改性沥青机理,从低温脆点角度分析了其低温阻裂机理,综述了胶粉来源、掺量、目数等因素对橡胶沥青低温性能的影响,以及目前国内外研究者对于橡胶沥青结合料和混合料的低温评价手段、理论分析方法。介绍了以胶粉表面活性技术、添加外掺剂等对低温性能的改善措施,并进行了优缺点分析。综合对比认为,掺加环烷油较其他改善措施有更好的效果,且无需多余工序,具有更好的实用价值,但对于橡胶沥青及其混合料低温性能的改善方法还值得研究。这不仅能对橡胶轮胎进行合适的再生利用,更对解决我国北方低温地区沥青混凝土路面低温开裂病害起到了重要的现实意义。Based on the recent research results of the low-temperature performance of rubber asphalt and mixture both in China and abroad, in this paper the mechanism of crumb rubber modified asphalt is introduced, and the mechanism of its low temperature crack resistance is analyzed from the perspective of low-temperature brittle point. It summarizes the influence of rubber source, proportion, particle size and other factors on the low-temperature performance of rubber asphalt. It also summarizes the evaluation methodologies and theoretically analytical methods for asphalt rubber and mixture in low-temperature, and introduces some measures to improve the low temperature performance, such as rubber powder surfactant technology and using additives, and analyzes the advantages and disadvantages at the same time. According to the compared views, adding naphthenic oil has better results than other measures, and needs no extra processing, it has a better practical value. But the way to improve the low-temperature performance of rubber asphalt and mixture needs to be studied more. This is not only suitable for rubber tires recycling, but also having an important practical significance to solve the cracked diseases of asphalt pavement in the low-temperature region of northern China.

关 键 词：废旧轮胎橡胶粉 改性 低温性能 评价方法 改善措施 

分 类 号：U414.01[交通运输工程—道路与铁道工程]