GAC—20混合料设计方法研究  

Research of Grading Design Method for Asphalt Mixture of GAC—20

作　　者：咸红伟[1] 

机构地区：[1]华南理工大学交通学院,广州510641

出　　处：《科学技术与工程》2010年第26期6576-6578,6582,共4页Science Technology and Engineering

摘　　要：高温多雨气候以及重载交通等环境下,沥青路面车辙和水害等早期病害一直是未得到很好解决的难题。在现有规范基础上借鉴Superpave技术成果,通过把混合料级配曲线设计成S型并尽量远离最大密度线,控制关键筛孔的通过率;通过马歇尔试件成型确定最佳配合比和测定VCAmin,然后采用CAVF法进行级配嵌挤检验。通过级配设计使沥青路面的密水性、均匀性和高温稳定性显著提高,施工的路面适合于高温多雨天气和重载交通下使用。In the conditions of the rainy climate and heavy traffic,pavement rutting and water hazards have not been well solved. On the basis of the existing specification and Superpave,through design S-graded to improve the uniformity of construction,the adoption rate control key is sieved; by Marshall and test to determine the best mix VCAmin,then graded by CAVF to test embedded crowded,to improve the construction quality so that water density,uniformity and temperature stability of the asphalt pavement improved significantly.The design graded is suit for hot and rainy weather and heavy traffic to use.

关 键 词：GAC—20 级配设计 性能检验 

分 类 号：U416.217[交通运输工程—道路与铁道工程]