机构地区: 华中科技大学土木工程与力学学院
出 处: 《华中科技大学学报(城市科学版)》 2006年第z1期16-18,共3页
摘 要: 针对高速公路许多破坏是由中下面层破坏引起,以及中南地区道路建设的现况,采用重交沥青AH-90对AC-25I型沥青混合料进行级配优化设计研究.通过改善混合料中粗细集料的分布对级配进行优化设计,达到改善沥青混合料的高温稳定性差的目的. The paper makes grading optimization of design on AC25Ⅰ type mixture adapting heavy traffic asphalt AH-90 to that expressway' s many breakages are caused by middle layer's damage and the current conditions in the Middle-south region.The paper alters the distribution of coarse and fine aggregate in AC-25Ⅰ asphalt mixture with the intent of improving asphalt mixture's high temperature stability.