不同RAP改性SMA-13再生路用材料的性能研究  

Study on the performance of different RAP modified SMA-13 recycled road materials

作　　者：周合轻 陈浩 韦文龙 ZHOU Heqing;CHEN Hao;WEI Wenlong(Henan Highway Engineering Bureau Group Co.,Ltd.,Zhengzhou 450052,China)

机构地区：[1]河南省公路工程局集团有限公司,河南郑州450052

出　　处：《粘接》2024年第5期75-78,共4页Adhesion

基　　金：交通运输部重点科技项目(项目编号:2021-TG-001);河南省交通运输科技计划项目(项目编号:2021J5)。

摘　　要：为了改善SMA-13再生路用材料的路用性能,延长再生沥青路面的使用年限。通过对不同RAP掺量、不同纤维类型的SMA-13再生沥青开展相关路用性能研究,评价玄武岩纤维、木质素纤维对再生沥青混合料性能的影响。试验结果表明,再生剂掺量为6%时,再生沥青整体性能最优;随着RAP掺量的增加,再生沥青混合料高温稳定性能逐渐改善,低温及水稳定性能逐渐降低,工程应用中应合理确定RAP掺量;玄武岩纤维再生沥青混合料路用性能均优于木质素纤维。In order to improve the road performance of SMA-13 recycled road material and extend the service life of recycled asphalt pavement.The effects of basalt fiber and lignin fiber on the performance of recycled asphalt mixture were evaluated by studying the relevant road performance of SMA-13 recycled asphalt with different RAP content and different fiber types.The experimental results showed that when the dosage of rejuvenator was 6%,the overall performance of recycled asphalt was optimal.With the increase of RAP content,the high-temperature stability performance of recycled asphalt mixture gradually improved,while the low-temperature and water stability performance gradually decreased.In engineering applications,the RAP content should be reasonably determined.The road performance of basalt fiber recycled asphalt mixture was superior to that of lignin fiber.

关 键 词：再生剂 玄武岩纤维(BF) 矿料级配 油石比 再生沥青混合料(RAP) 

分 类 号：TQ343.4[化学工程—化纤工业] U416.217[交通运输工程—道路与铁道工程]