摘要
半刚性基层沥青路面已经成为了我国高速公路路面结构的主流模式,但是半刚性基层容易产生开裂,并逐步向面层扩展,形成反射裂缝。设置应力吸收层可以有效地减缓半刚性基层的反射裂缝。根据应力吸收层的功能特性,同时引入美国Superpave配合比设计思想,对应力吸收层混合料进行了配合比设计。
Semi - rigid base course asphalt pavement has become the main stream model of expressway pave- ment structure of our country, but crack is easily caused and expands gradually to the surface course to form reflec- tion crack. Stress absorbing layer could effectively reduce the reflection crack of semi -rigid base course. Accord- ing to the functional characteristics of stress absorbing layer, American Superpave mix ratio design concept is intro- duced at the same time, and mix design is made for mixture of stress absorbing layer.
出处
《北方交通》
2012年第6期57-59,共3页
Northern Communications
关键词
半刚性基层
反射裂缝
沥青砂应力吸收层
配合比设计
sdesignSemi -rigid base course
Reflection crack
Asphalt sand stress absorbing layer
Mix ratio
