混杂纤维沥青胶浆及其混合料性能研究  

Research on the Related Properties of Asphalt Binders and Mixtures Containing Hybrid Fibers

作　　者：岳红波[1] 陈筝[1] 叶群山[1] 唐宁[1] 

机构地区：[1]武汉理工大学硅酸盐材料工程教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2007年第9期31-34,共4页Journal of Wuhan University of Technology

基　　金：教育部新世纪优秀人才支持计划项目(NCET-05-0656)

摘　　要：分别采用动态剪切试验、马歇尔试验、车辙试验等方法研究了混杂纤维沥青胶浆的流变特性以及沥青混合料的马歇尔试件性能、路用性能,并将其与掺加单一纤维的情况进行比较。结果表明,随着混杂纤维体系中聚酯纤维比例的增加,纤维沥青胶浆的复合剪切模量增大。同时随着混杂纤维体系中木质素纤维比例的增加,沥青混合料的最佳沥青用量增加,密度下降,空隙率和马歇尔稳定度呈减小趋势。混杂纤维的掺加能显著提高沥青混合料的路用性能,且在一定程度上,混杂纤维的增强效果比单一木质素纤维更加显著。The rheological properties and pavement performances of asphalt binders and mixtures containing hybrid fiber are studied in this paper, and the comparison between hybrid fibers and single fibers are conducted. Test results indicate that the complex modulus of asphalt binder with hybrid fiber increase with the contents of polyester fiber. The increase of cellulous fiber in the hybrid fiber can result in the increase of optimum asphalt content, the reduction of density, air voids and Marshall stabili- ty. The pavement performances of asphalt mixtures containing hybrid fibers can be improved. The enhancement of hybrid fibers is more significantly than the single cellulous fiber to some extend.

关 键 词：沥青胶浆 沥青混合料 混杂纤维 复合剪切模量 路用性能 

分 类 号：TU57[建筑科学—建筑技术科学]