沥青混合料最大理论相对密度确定方法的探讨  

Research of the Computing Methods of the Theoretical Maximum Specific Gravity of Bituminous Mixtures

作　　者：王丽健[1] 柳浩[2] 谭忆秋[1] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨150090 [2]北京路桥路兴物资公司,北京100076

出　　处：《石油沥青》2005年第6期49-54,共6页Petroleum Asphalt

摘　　要：沥青混合料的最大理论相对密度直接决定了沥青混合料的体积特性,从而间接决 定了混合料的路用性能,现有的试验规程中最大理论相对密度的确定方法有两种:计算法和实 测法;新的施工技术规范JTG F40-2004结合Superpave设计方法进行了相应的调整,但是 不同的确定方法之间存在着较大的差异,通过几种不同确定方法的对比分析,建议采用基于实 测法的有效密度法;当实测条件不具备时,推荐了相应的计算方法。The volume properties of asphalt mix are decided by the theoretical maximum specific gravity of bituminous mixtures, which decides pavement performance of asphalt mix indirectly. There are two methods to get the theoretical maximum specific gravity of bituminous mixtures in the existing standard test method： one is the computing method and the other is practical measurement method . As to this, it has been adjusted in the new technical specifications （JTG F40--2004） for construction according to the SUPERPAVE design method, but there is still difference between different methods. Comparing and analyzing the different methods proposed, the effective volume method based on the practical measurement method was adopted. And the corresponding methods was suggested when the condition for the practical measurement was not sufficient.

关 键 词：沥青混合料 最大理论相对密度 计算法 实测法 有效密度法 

分 类 号：U414[交通运输工程—道路与铁道工程]