昆明地区沥青路面光老化后使用性能研究

Study on the Service Performance of Asphalt Pavement After Light Aging in Kunming Area

云南高原空气稀薄、阳光透过率高、紫外线辐射十分强烈,在昆明地区,年日照时间达到2 000h以上,年紫外线辐射量达到了400mJ/m^2,沥青路面光老化现象尤为突出。论文主要研究在强紫外线辐射的高原地区对沥青混合料使用性能的影响。

Yunnan plateau has thin air, high sunlight transmission rate and strong ultraviolet radiation. In Kunming area, the annual sunshine time reaches more than 2 000 hours, and the annual ultraviolet radiation amount reaches 400 mJ/m^2. The phenomenon of asphalt pavement photoaging is particularly prominent. In this paper, the effect of high ultraviolet radiation on the performance of asphalt mixture was studied.