大粒径沥青混合料下面层结构设计方法  

DESIGN METHOD FOR LOWER COURSE STRUCTURE MADE OF LARGE-PARTICLE ASPHALT MIXTURE

作　　者：管巧艳[1] 陈会凡[1] 李惠霞[2] 

机构地区：[1]郑州航空工业管理学院,郑州450053 [2]长安大学,西安710064

出　　处：《建筑技术》2012年第8期749-751,共3页Architecture Technology

摘　　要：大粒径沥青碎石具有抗车辙能力及抵抗反射裂缝的能力,能解决现在路面使用中出现的高温稳定性差和耐久性差的问题。目前大粒径沥青混合料大多用作沥青路面基层,但对其作为下面层的研究和使用相对较少,通过对不同厚度的大粒径沥青碎石下面层进行力学计算,得出大粒径沥青混合料作为下面层合理厚度取10～11cm较合适。Large-particle asphalt and crushed stone is resistant against wheel track and reflection, and it could better solve poor stability and durability of pavement at high temperature. At present, large-particle asphalt mixture is mainly used as substratum of asphalt pavement, but research and use of lower course are relatively less. After mechanical calculation of lower course made of large-particle asphalt and crushed stone, it is obtained that the reasonable thickness of lower course made of large-particle asphalt mixture should be 10 to llcm.

关 键 词：大粒径 沥青 下面层 厚度 

分 类 号：TU528.42[建筑科学—建筑技术科学]