Design of Small Stone Asphalt Mixture based on Anti-skidding Performance  

作　　者：李蕊 裴建中 

机构地区：[1]Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang'an University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2012年第4期789-793,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Program for Innovative Research Team in University (IRT1050);the Ministry of Transport Technology Project(201131982020);the Key Program of Shaanxi Natural Science Foundation for Basic Research Plan (2010JZ009)

摘　　要：Small stone asphalt mixture（SSAM） was designed by Bailey method and coarse aggregate voids-filling method.The optimum asphalt content was determined by Marshal test.Surface texture depth for SSAM with different voidage,and the BPN of SSAM and SMA before after wet track abrasion were measured.The experimental results indicate that the surface texture depth increases with the decreasing of asphalt aggregate ratio.The SSAM with the optimal asphalt content has a good skid resistance.BPN of asphalt mixture decreases with the increasing of wearing time,but the extent of reduction is different.The reduction rate of BPN for SSAM is smaller than that of SMA,indicating that SSAM has a good skid resistance attenuation capacity.Finally,the other properties of SSAM are also evaluated,showing that the splitting strength and modulus and SSAM are higher than those of SMA,and the other properties of SSAM,such as high-temperature performance and water stability can also satisfy the technical requirements.Small stone asphalt mixture（SSAM） was designed by Bailey method and coarse aggregate voids-filling method.The optimum asphalt content was determined by Marshal test.Surface texture depth for SSAM with different voidage,and the BPN of SSAM and SMA before after wet track abrasion were measured.The experimental results indicate that the surface texture depth increases with the decreasing of asphalt aggregate ratio.The SSAM with the optimal asphalt content has a good skid resistance.BPN of asphalt mixture decreases with the increasing of wearing time,but the extent of reduction is different.The reduction rate of BPN for SSAM is smaller than that of SMA,indicating that SSAM has a good skid resistance attenuation capacity.Finally,the other properties of SSAM are also evaluated,showing that the splitting strength and modulus and SSAM are higher than those of SMA,and the other properties of SSAM,such as high-temperature performance and water stability can also satisfy the technical requirements.

关 键 词：small stone asphalt mixture mixture design anti-skidding performance attenuation of skid resistance 

分 类 号：U416.217[交通运输工程—道路与铁道工程]