Experimental and numerical analysis of a waterproofing adhesive layer used on concrete-bridge decks

被引：24
|
作者：
Xu, Qinwu [1 ]
Zhou, Qinghua [2 ]
Medina, Cesar [1 ]
Chang, George K. [1 ]
Rozycki, Dan K. [1 ]
机构：
[1] Transtec Grp Inc, Austin, TX 78731 USA
[2] Changan Univ, Minist Educ, Key Lab Special Area Highway Engn Chinas, Xian 710064, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2009年 / 29卷 / 05期
关键词：
Concrete; Finite-element stress; Mechanical properties of adhesives;
D O I：
10.1016/j.ijadhadh.2008.12.001
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This paper studies the adhesive behavior of a waterproof layer used between a concrete-bridge deck and an asphalt-concrete overlay. The laboratory direct-shear and pull-off tests were designed to measure the interface adhesive strengths. A three-dimensional, finite-element model was developed to analyze the interfacial shear stress and tensile stress in response to vehicle loading. Results indicate that an interface friction coefficient of 0.5 could achieve high interfacial shear strength with relatively low shear stress. The safety factor (strength/stress) decreases significantly with increasing environmental temperatures. The effects of compaction temperature, modulus, and thickness of overlay on the adhesive strengths and stresses were also examined. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：525 / 534
页数：10
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