马歇尔击实法和轮碾法对沥青混合料体积参数的影响分析  

Influence Analysis of Marshall Molding Method and Rolling Molding Method on the Volume Parameters of Asphalt Mixture

作　　者：李萍[1] 路明周[1] 吴会荣[1] 

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《科学技术与工程》2008年第11期3049-3051,共3页Science Technology and Engineering

摘　　要：沥青混合料在不同成型工艺影响下,其体积参数是不同的。本文分别采用马歇尔击实法和轮碾法成型沥青混合料试件,对空隙率、矿料间隙率、沥青饱和度等体积参数进行对比分析。结果表明:沥青混合料马歇尔击实试件的空隙率小于碾压12个往返试件的空隙率,轮碾法达不到马歇尔击实法要求的压实度。建议在做马歇尔实验进行路用性能检测时,应适当增加混合料碾压次数,才能保证沥青混合料所要求的压实度。Under the influence of the different molding methods, the volume parameters of asphalt mixture are different. By using respectively the Marshall molding method and rolling molding method to mold asphalt mixture, the paper analyses the volume parameters of asphalt mixture on volume of air voids, voids in mineral aggregate and voids filled with asphalt. The results indicate that the volume of air voids of Marshall molding method of asphalt mixture is lower than that of rolling molding method of asphalt mixture, rolling molding method on degree of compaction would not fulfill the requirement. When asphalt mixture is carried out Marshall test, add to rolling times to control the quality of the performance mixture, so that asphalt mixture would fulfill the requirement.

关 键 词：沥青混合料 马歇尔击实法 轮碾法 空隙率 矿料间隙率 沥青饱和度 

分 类 号：U414.524[交通运输工程—道路与铁道工程]