高粘高弹改性沥青路面抗紫外光老化性能研究

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关键词：高粘高弹；改性沥青；路面结构；抗紫外光老化；纳米 中图分类号：TQ522.65 文献标志码：A 文章编号：1001-5922（2025）05-0115-04

Abstract：Theanti-ultravioletaging performance of high-viscosityandhigh-elasticity modifiedasphalt pavement structure was analyzed，and the guidance for pavement upgrading was provided.Nano - ，nano - and layered dihydroxides （LDHs）were used as anti-ultraviolet modifiers to prepare testsamples of high-viscosity and highelasticity modified asphalt pavement structure.Each sample was placed in aself-made ultravioletaccelerated irradiation testchamber forultraviolet aging test，and the basic indexes，mechanical propertiesandruting test effects were compared.The experimental analysis showed that the basic indexes of the pavement structure using LDHs anti-ultraviolet light modifier were the best，and the tensile strength and ruting stability were high.Under the dosage of 7.5 LDHs anti-ultraviolet modifier，the stability of pavement structure was the best，and the spliting strength was the highest after ultraviolet aging.

Key Words：high viscosity and high elasticity；Modified asphalt；pavement structure ；anti-uv aging；nano-

高粘弹改性沥青在传统沥青中添加高分子颗粒，增加黏度和韧性，用于铺筑降噪排水路面，耐久性好，可延长沥青混凝土罩面层的使用寿命，降低维护成本[1]。（剩余5412字）