沥青紫外线老化仿真系统的建立  

Establishment of Asphalt Aging Emulation System under Ultraviolet Radiation

作　　者：叶奋[1] 黄彭[1] 

机构地区：[1]同济大学交通运输工程学院,上海200092

出　　处：《建筑材料学报》2005年第5期567-571,共5页Journal of Building Materials

基　　金：青海省交通厅科研项目(2002-1)

摘　　要：探讨了紫外线辐射条件下沥青光氧化的机理,分析了沥青光氧化速率的影响因素,并通过对青藏高原日光辐射强度和波段区间分布的调研,利用室内强紫外线老化环境箱对沥青材料进行室内外紫外线老化模拟对比分析,建立了沥青紫外线老化仿真系统.这对于西部受强日光紫外线辐射地区研究道路沥青光氧化老化提供了一种切实可行的方法.The mechanism of asphalt photooxidation under ultraviolet radiation was discussed, and the dominant factors those influence asphalt photooxidation speed were analyzed. The wave range of intensive ultraviolet radiation in Qingzang plateau was investigated. The intensive ultraviolet radiation aging testing apparatus was used to compare asphalt material aging between indoor and outdoor environment. Ultraviolet radiation emulation system of asphalt aging is established in this paper, which is of value to provide a reliable analytical method of the asphalt photooxidation aging in the northwest region of China.

关 键 词：强紫外线辐射 沥青光氧化老化 仿真系统 

分 类 号：U416.217[交通运输工程—道路与铁道工程]