[1]杨军,王昊鹏,廖辉.沥青混合料疲劳自愈性能关键影响因素[J].东南大学学报(自然科学版),2016,46(1):196-201.[doi:10.3969/j.issn.1001-0505.2016.01.032]
 Yang Jun,Wang Haopeng,Liao Hui.Key influential factors of fatigue and self-healing properties of asphalt mixture[J].Journal of Southeast University (Natural Science Edition),2016,46(1):196-201.[doi:10.3969/j.issn.1001-0505.2016.01.032]
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沥青混合料疲劳自愈性能关键影响因素()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第1期
页码:
196-201
栏目:
交通运输工程
出版日期:
2016-01-20

文章信息/Info

Title:
Key influential factors of fatigue and self-healing properties of asphalt mixture
作者:
杨军王昊鹏廖辉
东南大学交通学院, 南京 210096
Author(s):
Yang Jun Wang Haopeng Liao Hui
School of Transportation, Southeast University, Nanjing 210096, China
关键词:
道路工程 疲劳自愈 灰关联分析 沥青混合料 四点弯曲疲劳试验
Keywords:
road engineering fatigue and self-healing gray relational analysis asphalt mixture four-point bending fatigue test
分类号:
U414
DOI:
10.3969/j.issn.1001-0505.2016.01.032
摘要:
为了研究不同沥青混合料疲劳自愈性能影响因素的显著水平,进行了有休息期和无休息期的沥青混合料室内四点弯曲疲劳试验.通过定义愈合指数,对不同因素条件下的沥青混合料疲劳试验结果进行灰关联分析,分别研究了沥青种类、沥青含量、空隙率、温度、休息期、损伤程度对沥青混合料疲劳自愈性能的影响程度.结果表明,基于愈合指数可得到即时的沥青混合料自愈合率,而无需等待疲劳试验结束.沥青种类对沥青混合料自愈合能力的影响最显著;休息期和损伤程度与沥青混合料的自愈合能力关联显著,其影响仅次于沥青种类;空隙率、温度、沥青用量则影响不显著.在工程实践中,可通过合理选择沥青种类、控制交通流量等方式提高沥青路面自愈合性能.
Abstract:
In order to investigate the significance level of different factors which influence the fatigue and self-healing properties of asphalt mixture, indoor four-point bending fatigue tests with and without rest periods were conducted. Through defining the healing index, the fatigue results of asphalt mixture with different influential factors were studied by grey relational analysis. The influence degrees of the asphalt type, asphalt content, air voids, temperature, rest period, and damage degree on the fatigue and self-healing properties of asphalt mixture were studied, respectively. The results show that according to the defined healing index, the real-time self-healing rate of asphalt mixture can be obtained without finishing fatigue tests. The influences of the asphalt type on the self-healing capacity of asphalt mixture is the most significant. The rest period and the damage degree have a significant correlation with self-healing capacity of asphalt mixture, and their influences follow that of the asphalt type. The influences of the air voids, temperature and asphalt content are not significant. In engineering projects, the self-healing property of asphalt mixture can be improved by selecting the rational asphalt type and controlling the traffic flow.

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备注/Memo

备注/Memo:
收稿日期: 2015-06-14.
作者简介: 杨军(1968—),女,博士,教授,博士生导师,yangjun@seu.edu.cn.
基金项目: 高等学校博士学科点专项科研基金资助项目(20120092110053).
引用本文: 杨军,王昊鹏,廖辉.沥青混合料疲劳自愈性能关键影响因素[J].东南大学学报(自然科学版),2016,46(1):196-201. DOI:10.3969/j.issn.1001-0505.2016.01.032.
更新日期/Last Update: 2016-01-20