高模量橡胶复合改性沥青关键性能研究  

Research on Key Performance Indicators of High Modulus Rubber Composite Modified Asphalt

作　　者：苟天波 徐磊 李馨 Gou Tianbo;Xu Lei;Li Xin(Sichuan Transportation Construction Group Co.Ltd.,Pavement Engineering Branch,Chengdu,Sichuan 610041)

机构地区：[1]四川省交通建设集团有限责任公司路面工程分公司,四川成都610041

出　　处：《江西建材》2023年第10期79-81,共3页Jiangxi Building Materials

摘　　要：文中以沥青混合料为研究对象,探究高模量沥青是否能满足相关指标,通过选用几种常用橡胶沥青对其进行分析,还对SBS改性沥青混合料、湖沥青以及岩沥青改性进行了制备,对其压缩回弹模量、动模量和强度进行了测试。在对高模量沥青混合料的研究过程中,深入分析了多种可被选用的模量,并对其设计指标体系进行了研究。以研究结果为依据,无论是岩沥青,还是橡胶沥青以及湖沥青等的复合改性,均能满足高模量混合料的相关要求,高模量橡胶沥青的疲劳性能表现更优秀,其作为高模量沥青气候的覆盖面更广。The article takes asphalt mixture as the research object to explore whether high modulus asphalt can meet relevant indicators.By selecting several commonly used rubber asphalt for analysis,SBS modified asphalt mixture,lake asphalt,and rock asphalt modification were prepared,and their compressive rebound modulus,dynamic modulus,and strength were tested.In the research process of high modulus asphalt mixtures,various modulus options were analyzed in depth,and their design index system was studied.Based on the research results,both rock asphalt,rubber asphalt,and lake asphalt composite modifications can meet the relevant requirements of high modulus mixtures.High modulus rubber asphalt has better fatigue performance and a wider coverage as a high modulus asphalt climate.

关 键 词：高模量沥青 回弹模量 动态模量 劲度模量 高模量橡胶沥青 

分 类 号：U414[交通运输工程—道路与铁道工程]