排水性沥青混合料组成结构与性能的研究

Composite Structure and Performance of Draining Asphalt Mix

应用统计方法分析了开级配沥青混合料骨架结构、空隙率与级配组成之间的关系,研究了沥青混合料抗松散和渗透性的主要影响因素.研究结果表明,这种沥青混合料组成结构和性能的主要影响因素是4.75mm和2.36mm筛的通过百分率及沥青用量;为了提高沥青混合料的抗松散能力,应使用高粘度沥青材料.

The relation of the framework structure and voids of opengraded asphalt mix to the material composite were analyzed by using the statistic regression. The main factors affecting on raveling resistance and permeability of the opengrade asphalt mix were also studied. The key factors affecting the framework structure and performance of the asphalt mix are the percent passing 4.75 mm and 2.36 mm sieves and the asphalt content.The high viscosity asphalt should be used to improve the raveling resistance of the mix.