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.
出处
《交通科技》
2015年第5期106-109,共4页
Transportation Science & Technology
关键词
道路工程
沥青混合料
纤维
路用性能
road engineering
asphalt mixture
fibers
road performance
