沥青老化进程及再生机理探讨  

Research on Aging Process and Regeneration Mechanism of Asphalt

作　　者：王正红[1] 房建宏 何明芳[1] Zhenghong Wang;Jianhong Fang;Mingfang He(Qinghai Province Haidong Road section, Haidong 810600, China;Qinghai Research Institute of Transportation, Xining 810016, China)

机构地区：[1]青海省海东公路总段,海东810600 [2]青海省交通科学研究院,西宁810016

出　　处：《青海交通科技》2017年第4期45-48,共4页Qinghai Transportation Science and Technology

摘　　要：我国的公路建设事业经过近年的飞速发展,现已进入建养并重的阶段,因此作为沥青路面重要养护技术的热再生技术引起了工程界的广泛关注。本文就沥青的老化进程,沥青老化过程的流变行为,老化沥青的再生机理及再生沥青的流变行为等方面进行了简要分析研究,以期指导老化沥青再生工艺选择、再生沥青混合料配合比设计及工程应用,从而完善沥青路面热再生技术体系。The construction of the highway in China has entered the stage where both construction and mainte-nance through the rapid development in recent years, and therefore hot regenerating technology has aroused wide- spread concern in engineering sector as the important maintenance technology of asphalt pavement. In this paper, the aging process of asphalt, bitumen rheological behavior in the aging process, the regeneration mechanism and rheological behavior of aged asphalt were analyzed to guide selection of regeneration process of aged asphalt, regen- erated mixture ratio design and engineering applications so as to improve hot asphalt pavement regenerating technol- ogy system.

关 键 词：沥青 老化进程 再生机理 

分 类 号：U414[交通运输工程—道路与铁道工程]