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基于DMA法的沥青及混合料疲劳自愈合评价方法综述

发表时间:2014-06-30  浏览量:1701  下载量:567
全部作者: 王昊鹏,杨军,龚明辉
作者单位: 东南大学交通学院
摘 要: 在分析沥青及沥青混合料性质的基础上,介绍了动态力学分析(dynamic mechanical analysis, DMA)法和休息时间的引入方式,对基于模量、耗散能、伪应变的三类自愈合评价指标进行综述,并分析了其优点和不足。认为:将伪应变和耗散能相结合,进行多因素敏感性分析,是研究沥青及混合料的疲劳损伤自愈合行为、建立沥青及混合料自愈合评价模型的科学有效方法。
关 键 词: 道路工程;沥青;综述;自愈合;耗散能;评价方法
Title: Summary of the fatigue and self-healing evaluation methodologies of asphalt mixtures using DMA
Author: WANG Haopeng, YANG Jun, GONG Minghui
Organization: School of Transportation, Southeast University
Abstract: The paper outlined dynamic mechanical analysis (DMA) methods and ways to introduce rest period on the basis of analyzing asphalt and asphalt mixtures’ properties. Three types of self-healing index based on the modulus, dissipated energy and pseudo strain were summarized, while the advantages and disadvantages of healing index were argued. In conclusion, the sensibility analysis of multi factors combining pseudo strain with dissipated energy was a scientific and effective method to research fatigue damages and self-healing behaviors of asphalt and mixtures, also contributing to establishing self-healing evaluation models of asphalt and mixtures.
Key words: road works; asphalt; review; self-healing; dissipated energy; evaluation methodology
发表期数: 2014年6月第12期
引用格式: 王昊鹏,杨军,龚明辉. 基于DMA法的沥青及混合料疲劳自愈合评价方法综述[J]. 中国科技论文在线精品论文,2014,7(12):1119-1127.
 
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