沥青混合料的集料比表面积确定方法的研究  

Study on Ascertaining Specific Surface Area of Asphalt Mixture Aggregate

作　　者：吕得保[1,2] 刘寒冰[1] 关长禄[2] 

机构地区：[1]吉林大学,吉林长春130025 [2]吉林省交通基本建设质量监督站,吉林长春130021

出　　处：《公路交通科技》2011年第5期28-32,共5页Journal of Highway and Transportation Research and Development

摘　　要：通过对沥青混合料集料比表面积确定的传统方法进行研究,并对矿粉和集料的表面积进行了实测,以及对沥青混合料的集料表面积系数进行推导,认为现有的确定沥青混合料的集料比表面积的方法值得商榷。通过对这两种方法进行分析,并结合沥青混合料的集料比表面积的实测结果,提出了不同于常用方法的沥青混合料的集料比表面积的确定方法,并确定了集料比表面积的计算公式。实践证明,这一方法更能反映沥青混合料中集料比表面积的真实情况,确保沥青混合料沥青膜厚度计算的准确性。Based on the research on the traditional way of ascertaining the specific surface area of asphalt mixture aggregate,practical measuring the surface area of mineral powder and aggregate,and reasonable derivation of the surface area coefficient of asphalt mixture aggregate,the present way to determine the specific surface area of asphalt mixture aggregate is found to deserve a new survey.An analysis of the two methods combined with the practical measuring contributed to a new way to ascertain the specific surface area of asphalt mixture aggregate,which led to a formula for calculating the specific surface area.It is proved by a series of practice that this method can better reflect the real condition of specific surface area.Therefore,the accuracy of calculating asphalt film thickness can be guaranteed.

关 键 词：道路工程 沥青混合料 实测法 比表面积 表面积系数 

分 类 号：U416.217[交通运输工程—道路与铁道工程]