公路沥青混合料低温抗裂性能及施工工艺研究  

Research on the Low-Temperature Crack Resistance and Construction Technology of Asphalt Mixtures for Highways

作　　者：张韬 ZHANG Tao(Sichuan Transportation Construction Group Co.,Ltd.,Chengdu,Sichuan Province,610000 China)

机构地区：[1]四川省交通建设集团有限责任公司,四川成都610000

出　　处：《科技资讯》2024年第12期128-130,共3页Science & Technology Information

摘　　要：主要探究提高公路沥青混合料低温抗裂性能与施工工艺的有效方法。实地观察、实验室试验和数值模拟分析了沥青混合料在低温环境下的性能变化规律,并研究了不同施工工艺对其性能的影响。结果显示,合理控制施工温度、优化压实工艺和采用适量添加剂可以有效提高沥青混合料的低温抗裂性能,降低路面裂缝的发生率。基于此,在公路建设中,应重视低温环境下沥青混合料的性能并采取相应的施工工艺措施,以提高路面的质量和使用寿命。This study mainly explores the effective method to improve the low-temperature crack resistance and construction technology of asphalt mixtures for highways.By the methods of field observation,laboratory tests and numerical simulation,this study analyzes the variation law of the performance of the asphalt mixture in the low-temperature environment and studies the influence of different construction processes on its performance.The re-sults show that the reasonable control of construction temperature,the optimization of compaction processes and the use of appropriate additives can effectively improve the low-temperature crack resistance of asphalt mixtures and reduce the incidence of pavement cracks.Based on this,during highway construction,we should pay attention to the performance of asphalt mixtures in the low temperature environment and take corresponding construction technology measures,so as to improve the quality and service life of the road surface.

关 键 词：低温抗裂性能 弯曲试验 施工工艺 SBR改性沥青 

分 类 号：U414[交通运输工程—道路与铁道工程]