[1]武书华,陈华鑫,张久鹏,等.半刚性基层沥青路面层间界面力学特性与黏结状态的试验研究[J].东南大学学报(自然科学版),2016,46(2):406-412.[doi:10.3969/j.issn.1001-0505.2016.02.028]
 Wu Shuhua,Chen Huaxin,Zhang Jiupeng,et al.Experimental study on mechanical properties and bond condition at interlayer between asphalt surface and semi-rigid base[J].Journal of Southeast University (Natural Science Edition),2016,46(2):406-412.[doi:10.3969/j.issn.1001-0505.2016.02.028]
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半刚性基层沥青路面层间界面力学特性与黏结状态的试验研究()
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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2期
页码:
406-412
栏目:
交通运输工程
出版日期:
2016-03-20

文章信息/Info

Title:
Experimental study on mechanical properties and bond condition at interlayer between asphalt surface and semi-rigid base
作者:
武书华1陈华鑫1张久鹏2裴建中2张中华3
1长安大学材料科学与工程学院, 西安 710061; 2长安大学公路学院, 西安 710061; 3河南省南阳市公路管理局, 南阳 473057
Author(s):
Wu Shuhua1 Chen Huaxin1 Zhang Jiupeng2 Pei Jianzhong2 Zhang Zhonghua3
1School of Materials Science and Engineering, Chang’an University, Xi’an 710061, China
2School of Highway, Chang’an University, Xi’an 710061, China
3Nanyang Highway Administration of Henan Province, Nanyang 473057,
关键词:
沥青路面 半刚性基层 层间黏结状态 力学性能 重复剪切试验
Keywords:
asphalt pavement semi-rigid base interlayer bonding condition mechanical property repeated shear test
分类号:
U416.217
DOI:
10.3969/j.issn.1001-0505.2016.02.028
摘要:
为了评价不同层间处理工艺的层间黏结效果及定量地评价重复荷载作用下的层间黏结状态,对试件做层间拉毛和洒布透层油处理,并与层间不做处理的试件进行对比.通过恒高度重复剪切试验分析了不同处理工艺、不同荷载作用次数下的层间界面力学响应规律,并采用层间黏结系数Ks作为层间黏结性能的评价指标.试验结果表明,相同荷载作用次数下,层间拉毛处理试件的层间剪应力和层间相对位移最小,剪切回弹模量最大,疲劳寿命为584次,层间黏结效果最好,但仍然处于半连续与半滑动状态;另外,对层间完全连续状态下的重复剪切试验进行了有限元模拟,得出了层间拉毛、洒布透层油、不做处理试件的层间黏结百分率分别为71.5%,54%,45%.
Abstract:
To evaluate interlayer bond effect through different treatments at interface between asphalt surface and semi-rigid base, and interlayer bond condition under repeated loading cycles, the roughening treated, untreated, emulsified asphalt treated specimen were compared. The repeated shear tests were conducted to analyze interlayer interface mechanical response under different numbers of loading cycles and bonding conditions. The interlayer bond coefficient Ks was selected as an evaluation index of interlayer bond properties. The experimental results show that the interface shear stress and relative displacement are the smallest, and shear reaction modulus are the largest, and the fatigue life is 584 cycles for the roughening treated specimen, It is shown that the improvement on the interface bonding condition of roughening treatment is the best. However, even with the best treatment of roughening, the interface is still in the half bonding and sliding condition. In addition, the finite element simulation of the repeated shear test under the full bonding interlayer condition was conducted. It can be concluded that the bonding percentage for the roughening treated, untreated and emulsified asphalt treated specimen is 71.5%,54%, and 45%, respectively.

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备注/Memo

备注/Memo:
收稿日期: 2015-08-04.
作者简介: 武书华(1984—),女,博士生;裴建中(联系人),男,博士,教授,博士生导师, peijianzhong@126.com.
基金项目: 国家自然科学基金资助项目(51378073,51408043)、陕西省自然科学基础研究计划资助项目(2014JQ7278)、中央高校基本科研业务费专项资金资助项目(310821153502, 310821152003).
引用本文: 武书华,陈华鑫,张久鹏,等.半刚性基层沥青路面层间界面力学特性与黏结状态的试验研究[J].东南大学学报(自然科学版),2016,46(2):406-412. DOI:10.3969/j.issn.1001-0505.2016.02.028.
更新日期/Last Update: 2016-03-20