摘要
级配碎石在级配良好并得到充分压实的情况下,利用其嵌挤作用,具有相当好的承载能力,有一定的排水功能,因而常用作路面的基层。半刚性基层沥青路面作为过渡层时,可以有效改善半刚性基层收缩裂缝的反射裂缝的发生。本文介绍级配碎石基层的材料和配合比设计、施工工艺,以及在应用中应注意的事项。
Well-graded and well-compacted unbound aggregate mixture, which form stone-on-stone skeleton, make a significant structural contribution, and show a good drainage performance, so it is used widely in various countries.Unbound aggregate base can efficiently retard the reflexion of cracks to asphalt pavement surface,which is aroused by the shrinkage crack of semi-rigid base in the inverted structure.Material composition design, construction process and attentive matter in construction of unbound graded aggregate base are introduced in this paper..
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第3期9-13,共5页
Journal of Highway and Transportation Research and Development
关键词
沥青路面
级配碎石基层
组成设计
施工工艺
Asphalt pavement
Unbound graded aggregate base
Composition design
Construction process
