Evaluation on Moisture Resistance of Asphalt Mixture with Active Mineral Powder  

作　　者：XIE J WU S P WAN L 

机构地区：[1]Key Laboratory of Silicate Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《武汉理工大学学报》2010年第17期210-214,共5页Journal of Wuhan University of Technology

基　　金：Department of Transportation in Hubei Province, China and Headquarters of Ma-Wu Expressway in Hubei Province for its financial support of this work.

摘　　要：A new type of filler named 'active mineral powder' (AMP) was introduced and applied in asphalt mixture in order to improve the adhesive property of gneiss or granite aggregates and asphalt. The treated mixtures contained 2% AMP by weight of the total aggregates as filler. The moisture stabilization properties of various combined mixtures were analyzed using the adhesive test,Marshall stability and indirect tensile strength tests. Five frost-thaw cycles test was conducted to further investigate the effect of active filler on asphalt mixtures in the indirect tensile strength experiment. The results show that active filler improves the moisture stability of mixtures with gneiss and granite. The active mechanism of AMP was also discussed in this paper.A new type of filler named ＇active mineral powder＇ （AMP） was introduced and applied in asphalt mixture in order to improve the adhesive property of gneiss or granite aggregates and asphalt. The treated mixtures contained 2% AMP by weight of the total aggregates as filler. The moisture stabilization properties of various combined mixtures were analyzed using the adhesive test,Marshall stability and indirect tensile strength tests. Five frost-thaw cycles test was conducted to further investigate the effect of active filler on asphalt mixtures in the indirect tensile strength experiment. The results show that active filler improves the moisture stability of mixtures with gneiss and granite. The active mechanism of AMP was also discussed in this paper.

关 键 词：GNEISS GRANITE moisture destruction active mineral powder 

分 类 号：TU528.42[建筑科学—建筑技术科学]