Influence Factors and Relationship of Optimum Asphalt Content for Mixture Determined by Two Design Methods

摘要：

The optimum asphalt content (OAC) of 31 groups of aggregate mixtures are determined by Marshall mixture design method and Superpave mixture design method .The OAC of each method is statistically significance difference according to the result of T testing. The OAC of Marshall is greater than that of Superpave. The OAC difference values of the two methods and their statistical relationship with mixture type, aggregate gradation type, asphalt type and aggregate type are studied. Test statistics results show that the influence of aggregate gradation type on OAC differences of each mixture is significant, the influences of the other factors are very small..The quantitative relationship formulae between the OAC of Marshall method and the OAC of Superpave method are established.The suggestions and opinions on the OAC between Marshall method and Superpave method are raised.

关键词： optimum asphalt content (OAC) of asphaltmixtures Marshall mixture design method Superpavemixture design method influence factors

作者: LI Chuangmin WU Zhiyong LI Jian WANG Zhiyong XU Chunsheng

作者单位: Key Laboratory for Highway EngineeringChangsha University of Science and Technology , Ministry of Co Highway Bureau of Yichun in Jiangxi Province,Yichun, 336000,P.R. China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）