长沙理工大学学报（自然科学版）2017，Vol.14Issue(1)：1-9,47,10.
沥青混合料渗透性影响因素分析
Analysis of influencing factors on permeability of asphalt mixture
摘要
Abstract
In order to study the influence of different factors on the permeability of asphalt mixture, the influences of factors including water pressure, temperature, void content, axial pressure and maximum nominal partical size on the permeability of asphalt mixture were comparatively researched by testing the permeability coefficient of two kinds of asphalt mixture specimens (AC-13 and AC-20) with different porosity at different conditions, such as temperature, water pressure and axial pressure.The experimental results show that the seepage volume increases with the increase of water pressure, but the increasing range decreases gradually.The void ratio has the greatest influence on the permeability of asphalt mixture.The greater the void ratio, the larger the permeability coefficient, which indirectly proves that 8% of the porosity is the turning point of the rapid increase of the permeability of asphalt pavement.For different asphalt mixtures, the larger the maximum nominal particle size, the greater the coefficient of permeability.For the same asphalt mixture, the higher the test temperature, the greater the axial pressure, and the greater the coefficient of permeability.Therefore, we should strictly control the compaction quality of asphalt pavement construction, paying more attention to the adverse effects of high temperature and heavy load on Asphalt Pavement in rainy areas.关键词
沥青混合料/渗透试验/渗透系数/空隙率/最大公称粒径/轴压Key words
asphalt mixture/permeability test/permeability coefficient/void content/maximum nominal partical size/axial pressure分类
交通工程引用本文复制引用
周志刚,郭安顺,俞文生,李岩..沥青混合料渗透性影响因素分析[J].长沙理工大学学报（自然科学版）,2017,14(1):1-9,47,10.基金项目
国家自然科学基金资助项目(51378084) （51378084）
交通运输部应用基础研究项目(2014319825060) （2014319825060）
江西交通科技计划项目(2011C0063) （2011C0063）
湖南省研究生科研创新项目(CX2014B371) （CX2014B371）
