SMA-13复掺纤维沥青混合料路用性能研究  

Study on Pavement Performance of SMA-13 Composite Fiber Asphalt Mixture

作　　者：李文凯 邵景干 LI Wenkai;SHAO Jinggan(Henan Jiaoyuan Engineering Technology Group Co.Ltd.,Research and Development Center of Green High Performance Material Application Technology Transportation Industry,Zhengzhou 450046,China)

机构地区：[1]河南交院工程技术集团有限公司,绿色高性能材料应用技术交通运输行业研发中心,河南郑州450046

出　　处：《河南科技》2022年第5期64-67,共4页Henan Science and Technology

基　　金：河南交院工程技术集团有限公司2022年度研发项目(2022JK-01)。

摘　　要：SMA间断级配沥青混合料因其良好的路用性能而被广泛应用在高等级沥青路面施工中。玄武岩纤维(BF)和木质素纤维(CF)能够均匀地分散到沥青混合料当中,起到吸附、稳定沥青的效果,同时在骨料之间形成搭桥作用,能够进一步改善沥青路面的路用性能及使用年限。本研究将不同掺配比例的BF及CF两种纤维掺入SMA-13混合料当中并进行相关路用性能研究,得出:玄武岩纤维(BF)对SMA-13混合料的高温性能改善效果较优,而木质素纤维(CF)对SMA-13混合料的低温性能改善效果较优,从SMA-13混合料整体路用性能方面综合考虑,玄武岩纤维(BF)与木质素纤维(CF)的掺配比例为1∶1。SMA discontinuous graded asphalt mixture is widely used in high-grade asphalt pavement because of its good road performance.Basalt fiber(BF)and lignin fiber(CF)can be evenly dispersed into the asphalt mixture to absorb and stabilize the asphalt.At the same time,it can form a bridge between the aggregates,which can further improve the road performance and service life of the asphalt pavement.In this study,BF and CF fibers with different mixing ratios are mixed into SMA-13 mixture,and relevant road performance research is carried out.It is concluded that basalt fiber(BF)has better effect on improving the high-temperature performance of SMA-13 mixture,while lignin fiber(CF)has better effect on improving the low-temperature performance of SMA-13 mixture.Considering the overall road performance of SMA-13 mixture,The mixing ratio of basalt fiber(BF)and lignin fiber(CF)is 1∶1.

关 键 词：玄武岩纤维 木质素纤维 矿料级配 油石比 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]