几种不同级配大粒径沥青混合料大马歇尔试件研究  

Research on the Large Marshall of the Large-stone Asphalt Mixes with Several Different Gradation Levels

作　　者：童申家[1] 雷琳[1] 惠阵江[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《公路工程》2011年第6期86-89,共4页Highway Engineering

摘　　要：采用析漏试验和大马歇尔试验方法确定开级配大粒径沥青混合料最佳沥青用量。通过实验研究几种不同级配大粒径沥青混合料的抗车辙能力、水稳定性和力学性能。研究表明,大粒径沥青混合料均具有良好的高温稳定性,水稳性能随着空隙率的增大呈减小趋势,LSM力学性能优于OLSM。For Large Stone Asphalt Mixes,the optimal asphalt content is determined through the leakage test and the Large Marshall test.Based on test research,rutting resistance,moisture stability and mechanical properties will be studied,the high-temperature stability of Large Stone Asphalt Mixes is well,and its water stability decreases with porosity increasing.Dense-graded Large-Stone Asphalt Mixes has better mechanical properties than OLSM.

关 键 词：大粒径沥青混合料 配合比设计 路用性能 大马歇尔试验 

分 类 号：U416.03[交通运输工程—道路与铁道工程]