摘要
采用贝雷法优化多孔安山岩混合料的级配设计,进行了不同FAc和FAf值矿料级配的压实特性试验;在配合比设计中分别应用沥青浸渍法和计算法测定混合料的最大理论相对密度,并对比分析安山岩沥青混合料的路用性能;进行了安山岩沥青混合料的水稳定性能试验和汉堡车辙试验。试验结果表明:适当增大FAc和FAf值能提高安山岩沥青混合料的压实效果;较之计算法,沥青浸渍法可以更为准确地测定多孔安山岩沥青混合料的最大理论相对密度;掺加消石灰是改善安山岩沥青混合料的最优措施。
Bailey method is used to optimize porous andesites mixture gradation design with different FAc and FAf value,and the compaction characteristics are tested.Asphalt immersion methods and calculation methods are used to test the maximum theoretical relative density of asphalt mixture,and all the road performance of asphalt mixture are compared and analyzed.The general water stability property tests and HWTD are used to test the water stability of three kinds of andesite asphalt mixtures.The results show that suitable enlargement of FAc and FAf value can improve andesite asphalt mixture compaction effect; the road performance of asphalt mixtures,which is manufactured by using asphalt immersion method to determine the maximum theoretical relative density of asphalt mixture and carry out the mix design,is better than the road performance of asphalt mixture manufactured by using calculation method.Adding hydrated lime is the optimum measure to improve the water stability property of andesite asphalt pavement.
出处
《中外公路》
北大核心
2012年第4期267-270,共4页
Journal of China & Foreign Highway
基金
国家自然科学基金资助项目(编号:50878027)
关键词
多孔安山岩
级配设计
贝雷法
沥青浸渍法
汉堡车辙试验
水稳定性能
asphalt concrete pavement
porous andesite
gradation design
Bailey method
asphalt immersion test
HWTD
water stability property
