武汉工程大学学报2024，Vol.46Issue(5)：585-590,6.DOI:10.19843/j.cnki.CN42-1779/TQ.202304025
温拌LDHs改性沥青混合料抗紫外老化性能及应用研究
Anti-ultraviolet aging performance and application of warm-mix asphalt mixtures containing layered double hydroxides additives
摘要
Abstract
A new anti-ultraviolet(UV)asphalt mixture using layered double hydroxides(LDHs)as UV-resistant additives and warm-mix agents as viscosity-reducing additives was prepared.The stability of LDHs crystals was investigated by transmission electron microscopy.Simultaneously,viscosity tests were conducted to investigate the viscosity-reducing effect of the warm-mix agents.Subsequently,physical performance test,wheel rutting test,and moisture damage resistance performance test were conducted to investigate the optimal content of LDHs and the anti-UV aging performance of warm-mix asphalt mixtures containing LDHs additives.Finally,a test road with warm-mix asphalt mixtures containing LDHs additives was constructed,and the pavement performances of the test road was investigated.The results indicate that LDHs have excellent crystal structure stability at 170℃.The warm-mix agents significantly reduce the viscosity of the LDHs modified asphalt.LDHs effectively improve the anti-UV aging performance and mechanical performance of the warm-mix asphalt mixtures.The recommended mass ratio of LDHs to asphalt binder for engineering is 0.03.关键词
改性沥青:沥青混合料:层状双金属氢氧化物/温拌剂/老化性能Key words
modified asphalt/asphalt mixtures/layered double hydroxides/warm-mix agent/aging characteristic分类
交通工程引用本文复制引用
卢忠明,米轶轩,吴少鹏,蒋永庆,黄文嗣,王志,周宇恒..温拌LDHs改性沥青混合料抗紫外老化性能及应用研究[J].武汉工程大学学报,2024,46(5):585-590,6.基金项目
湖北省国际合作项目(2022EHB006) （2022EHB006）
