纤维沥青混合料增强机理及路用性能研究  

Research on Reinforcement Mechanism and Road Performance of Fiber Asphalt Mixture

作　　者：李树军[1] 

机构地区：[1]太原市城市规划设计研究院,山西030002

出　　处：《交通科技》2015年第5期106-109,共4页Transportation Science & Technology

摘　　要：纤维直径小,比表面积大,在沥青混合料中能够起到吸附、稳定和"加筋"等作用。选用AC-13,SMA-13和OGFC-13 3种混合料进行室内试验研究,结果表明,添加0.3%的纤维后,混合料的动稳定度提升均超过20%,浸水马歇尔残留稳定度与冻融劈裂强度比均超过90%;路用性能优劣次序为SMA-13>AC-13>OGFC-13,且纤维对密级配混合料性能的改善效果更好。The fiber can play an role of adsorption,stability and ＂reinforced＂,its diameter is small and the surface area is large;.AC-13,SMA-13 and OGFC-13 were selected in the laboratory study.The results showed dynamic stability was improved more than 20%,marshall immersion residual stability and freeze-thaw splitting strength ratio were larger than 90% when 0.3% fiber was put into asphalt mixture.The merits order of road performance was SMA-13 〉AC-13〉 OGFC-13.The fiber could improve the performance of dense graded mixture.

关 键 词：道路工程 沥青混合料 纤维 路用性能 

分 类 号：U414.75[交通运输工程—道路与铁道工程]