基于SBS改性沥青混合料的路面结构设计及性能研究  

Study on Pavement Structure Design and Performance Based on SBS Modified Asphalt Mix

作　　者：李雯献 Li Wenxian(Guiyang Guanshanhu Investment(Group)Urban Construction Development Co.Ltd.,Guiyang,Guizhou 55000)

机构地区：[1]贵阳观山湖投资(集团)城市建设发展有限公司,贵州贵阳550009

出　　处：《江西建材》2024年第10期336-338,共3页

摘　　要：文中以贵州贵阳观山湖市政道路项目为例,对SBS改性沥青混合料在路面结构设计进行分析,并对工后SBS改性沥青的性能进行测试。结果发现,SBS改性沥青混合料的车辙深度平均为2.12 mm,断裂延伸率为14.96%,老化指数为1.22,国际平整度指数(IRI)为1.58 m/km,浸水残留强度(TSR)为89.4%,动稳定度为5 860次/mm,以上指标均高于普通沥青性能水平。表明SBS改性沥青能显著提升路面的耐久性和稳定性,适合在贵州贵阳地区复杂的气候条件下使用。Taking an expressway reconstruction and expansion project in Guiyang area of Guizhou province as an example,the pavement structure design of SBS modified asphalt mixture was analyzed,and the performance of SBS modified asphalt after construction was tested.The results showed that the average rut depth of SBS modified asphalt mixture was 2.12 mm,the fracture elongation was 14.96%,the aging index was 1.22,the international roughness index(IRI)was 1.58m/km,the immersion residual strength(TSR)was 89.4%,and the dynamic stability was 5860 times per-mm.The above indexes are higher than the performance level of ordinary asphalt.The results show that SBS modified asphalt can significantly improve the durability and stability of pavement,and it is suitable for use in complex climatic conditions in Guiyang,Guizhou province.

关 键 词：SBS改性 沥青混合料 路面结构设计 性能研究 

分 类 号：U416.217[交通运输工程—道路与铁道工程]