摘要
Abstract
In order to improve the anti-UV aging performance of asphalt mixture,the properties of LDHs modified asphalt and its asphalt mix-ture before and after aging were compared and analyzed by UV aging test.The results showed that the penetration of asphalt decreased,the sof-tening point,tensile strength and viscosity increased after adding LDHs anti-aging agent.The ratio of freeze-thaw splitting strength of asphalt mixture decreases and the dynamic stability increases.The viscosity of LDHs modified asphalt decreased significantly after adding warm mixing agent,and the decreasing range increased with the increase of LDHs powder content.When the content of UV aging agent is 3%and 4%,the ratio of freeze-thaw splitting strength and dynamic stability of the two asphalt mixtures are not different,so the optimal content of LDHs powder is3%.关键词
改性沥青/沥青混合料/温拌剂/抗紫外老化性能Key words
Modified asphalt/Asphalt mixture/Warm mixing agent/Uv aging resistance分类
建筑与水利
