柔性路面大粒径碎石沥青混合料加铺层的研究

Study of Large Stone Asphalt Mixture as Overlays for Flexible Pavements

近年来,随着交通量、交通荷载以及胎压的不断增长,我国早期修建的高等级公路已进入大修改造期。本文通过室内试验研究大粒径碎石沥青混合料的力学参数和使用性能,同时针对大粒径碎石沥青混合料作为柔性路面加铺层进行结构设计,并现场铺筑试验路,经过2年多的使用,试验路使用状况良好。

Highway built early has to be rehabilitated in recent years due to high pressure truck tires and increased wheel loads.Mechanics parameters and performance is researched through laboratory test,then structure section of flexible pavement overlays is designed with LSAM.Finally,test road is built,and it is still in good condition after 2 more year.