橡胶颗粒防冻性沥青路面结构组合研究  

Research on the structure of antifreeze asphalt pavement made from rubber particles

作　　者：郭平[1,2] 吴德军[1,2] 田伟平[1] 刘雨迪 张岁应 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]西安公路研究院,陕西西安710054 [3]陕西高速公路工程咨询有限公司,陕西西安710061

出　　处：《广西大学学报（自然科学版）》2011年第1期83-87,共5页Journal of Guangxi University（Natural Science Edition）

基　　金：国家科技支撑计划项目(200631800007)

摘　　要：为研究橡胶颗粒沥青混合料作为沥青路面不同层位与ATB、AC结构组合下沥青路面的防冻性能的变化规律,通过ANSYS有限元软件模拟冰层的受力过程,分析不同路面结构组合下的荷载响应效果。结果表明:橡胶颗粒沥青混合料作为上面层时具有较好的防冻性能;作为中面层时可明显提高路面抗车辙性能,但破冰性能降低。最后,建议采用ATB作下面层与橡胶颗粒沥青混合料作中、上面层搭配的组合结构可有效改善沥青面层的永久变形及破冰性能。In order to study the variation of anti-freezing capability of the asphalt pavement which is made from the mixture of asphalt and rubber particles and composed of different layers and ATB/AC structure,responses of the pavement to loads were analyzed by simulating the stressed process of the ice layer with ANSYS.The results indicate that when the asphalt mixed with rubber particles was used as the surface layer,the anti-freezing capability of the pavement was enhenced.When the mixture was used as the middle layer,the anti-rutting performance could be improved significantly but the ice-breaking performance was reduced.Finally,the combination of ATB as the bottom layer and the asphalt mixture of rubber particles as the middle and surface layer is advised to be adopted,which can improve effectively the permanent deformation and ice-breaking performance.

关 键 词：橡胶颗粒 防冻性 沥青路面 结构组合 

分 类 号：U416.217[交通运输工程—道路与铁道工程]