纤维改性沥青混合料性能的研究现状与展望  

Research Status and Prospect of Fiber Modified Asphalt Mixture Performance

作　　者：朱洪洲[1,2] 谭祺琦 杨孝思 范世平 赵鸿铎[3] ZHU Hong-zhou;TAN Qi-qi;YANG Xiao-si;FAN Shi-ping;ZHAO Hong-duo(College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China;National & Local Joint Engineering Laboratory of Transportation and Civil Engineering Materials, Chongqing Jiaotong University, Chongqing 400074, China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074 [2]重庆交通大学,交通土建工程材料国家地方联合工程实验室,重庆400074 [3]同济大学,道路与交通工程教育部重点实验室,上海201804

出　　处：《科学技术与工程》2022年第7期2573-2584,共12页Science Technology and Engineering

基　　金：重庆市研究生科研创新项目(2020S0012)。

摘　　要：纤维材料作为一种沥青混合料添加剂和稳定剂,能有效改善沥青路面的各项性能指标,首先从纤维材料的自身特性出发,介绍了几种常用路用纤维的物理力学特性以及近年来开发出的新型绿色环保型纤维材料;通过复合材料理论、界面理论等相关理论模型解释了纤维材料对沥青混合料的微细观改性机理;总结了现有关于纤维改性沥青混合料的界面表征分析方法;研究了影响纤维沥青混合料性能的主要因素;指出现有研究的不足并展望今后在纤维改性沥青混合料领域未来的发展方向。当前对于纤维沥青混合料性能的研究在复合材料相互作用机理、路用性能评价指标和综合评价体系等方面还有待完善。推行基于复配纤维或改性剂的组合形式是纤维改性沥青混合料这一领域发展的必然趋势,也是全面提升沥青混合料性能的重要方法。As a kind of asphalt mixture additives and stabilizers,fiber materials can effectively improve various performance indicators of asphalt pavement.Firstly,from the fiber material’s own characteristics,the physical and mechanical properties of several commonly used road fibers and new green and environmentally friendly fiber materials developed in recent years were introduced.The mechanism of microscopic modification of asphalt mixture by fiber materials was explained by composite material theory,interface theory and other related theoretical models;the existing methods of interface characterization and analysis of fiber-modified asphalt mixture were summarized;the main factors affecting the performance of fiber asphalt mixture were studied;the shortcomings of the existing research were pointed out and the future development direction in the field of fiber-modified asphalt mixture was foreseen.The current research on the performance of fiber asphalt mixes in terms of composite interaction mechanism,road performance evaluation index and comprehensive evaluation system still needs to be improved.The implementation of a combination of fiber or modifier-based form is an inevitable trend in the development of this field of fiber-modified asphalt mixtures,and is an important method to improve the overall performance of asphalt mixtures.

关 键 词：路用纤维 沥青混合料 路用性能 作用机理 界面表征方法 影响因素 

分 类 号：U414[交通运输工程—道路与铁道工程]