Experimental Research on Antifatigue Performance of OGFC Mixture

doi:10.3969/j.issn.1674-0696.2011.02.17

Abstract

Abstract: Fatigue damageme chanism caused by cyclic loading vehicle was analyzed; a method was proposed to evaluate OGFC asphalt fatigue performance; corresponding tests were conducted to study the response of OGFC fatigue performance impacted by four factors gradation, asphalt type, oil stone ratio and loading level. The results demonstrated that four different factors contribute to fatigue life should be gradation > loading level > asphalt varieties > oilstone ratio according to their importance.

Key words: OGFC mixture, antifatigue performance, gradation, oilstone ratio, loading level

摘要： 分析了车辆重复荷载引起的OGFC疲劳损害机理；设计了一种评价OGFC沥青混合料抗疲劳性能的试验方法；试验研究了级配、沥青种类、油石比以及加载水平等因素对OGFC沥青混合料疲劳寿命的响应规律。结果表明:4种因素对疲劳寿命的贡献主次顺序依次为:级配>加载水平>沥青品种>油石比。

关键词: OGFC混合料, 抗疲劳性能, 级配, 油石比, 加载水平

CLC Number:

U416

LE Yu, JIANG Jian. Experimental Research on Antifatigue Performance of OGFC Mixture[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(2): 254-257.

乐瑜，江建. OGFC混合料抗疲劳性能试验研究[J]. 重庆交通大学学报（自然科学版）, 2011, 30(2): 254-257.

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