国内外沥青混合料级配设计方法浅析

矿料级配是提供沥青混凝土多个性能的关键因数之一.介绍了国内外常用的几种沥青混合料级配设计方法及其特点;讨论了粗细集料分界粒径的问题,认为明显的粗细颗粒分界点是不存在的,关键在于确定和控制好敏感粒径的含量.

Brief Analysis on Design Method of Asphalt Mixture Gradation at Home and Abroad

The gradation of mineral aggregate is one of the key factors affecting the performances of asphalt mixture.The paper introduces the gradation design methods and characteristic of several commonly used asphalt mixtures at home and abroad,and discusses the boundary size between the coarse and fine aggregates,and considers that there is no clear boundary point between coarse and fine aggregates.The key is to define and control the content of the sensitive granules better.