沥青路面离析的材料和设备机理研究  

Effect of Machinery and Material to Segregation in Pavement Construction

作　　者：刘洪海[1] 张建 

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室,西安710064 [2]山东省公路建设集团,济南250102

出　　处：《武汉理工大学学报》2009年第4期159-162,共4页Journal of Wuhan University of Technology

基　　金：交通部西部交通建设科技项目(200631800076)

摘　　要：混合料离析是造成路面早期病害的重要原因。路面发生离析时,混合料级配和沥青含量产生变异,空隙率发生变化,导致路面产生车辙、拥包、推移、渗水等病害。根据离析的不同表现形态可以分为材料离析、温度离析和压实离析。通过对混合料级配参数、原材料生产管理、混合料运输、摊铺、压实等环节的研究,探讨了生产过程中机械设备和材料因素对路面产生离析的影响。Mixture segregation is the key reason of premature failures of asphalt pavement with the deviation of mixture gradation, asphalt content and air voids that lead to rutting, slippage and moisture. Based on the appearance, segregation includes material segregation, temperature segregation and compaction segregation. This paper researches all steps of mixture construction including mixture gradation factor, raw material management, mixture transportation, paving and compaction etc, and analyzes the effect of machinery and material to segregation in pavement construction.

关 键 词：沥青路面 混合料离析 摊铺 

分 类 号：U418.8[交通运输工程—道路与铁道工程]