岩沥青改性沥青混合料耐久性及抗裂性能研究  

Research on Durability and Crack Resistance of Rock Asphalt Modified Asphalt Mixture

作　　者：何杰 HE Jie(Anhui Urban Construction Design and Research Institute Co,Ltd,Hefei 230000,China)

机构地区：[1]安徽省城建设计研究总院股份有限公司,合肥230000

出　　处：《建材世界》2025年第1期64-67,101,共5页The World of Building Materials

摘　　要：该文研究了岩沥青改性沥青混合料的耐久性及抗裂性能,并探讨其在凤凰大桥工程中的应用。通过详细介绍岩沥青的物理化学性质和改性机理,分析了其对沥青混合料性能的影响。针对凤凰大桥的设计需求,优化了材料选择与配合比设计,并通过室内外性能测试评估了高温稳定性、低温抗裂性、水稳定性及疲劳性能。实际应用表明,岩沥青改性沥青混合料在凤凰大桥中表现出优异的耐久性和抗裂性能。This article investigates the durability and crack resistance of rock asphalt modified asphalt mixture,and explores its application in the Fenghuang Bridge project.By providing a detailed introduction to the physicochemical properties and modification mechanism of rock asphalt,the impact of rock asphalt on the performance of asphalt mixture is analyzed.In response to the design requirements of the Fenghuang Bridge,material selection and mix design were optimized,and high-temperature stability,low-temperature crack resistance,water stability,and fatigue performance were evaluated through indoor and outdoor performance tests.Practical application shows that the rock asphalt modified asphalt mixture exhibits excellent durability and crack resistance in the Fenghuang Bridge.

关 键 词：岩沥青改性 沥青混合料 耐久性 抗裂性能 

分 类 号：U414[交通运输工程—道路与铁道工程]