Bond strength of epoxy-coated bars in underwater concrete

被引：54

作者：

Assaad, Joseph J. ^{[1
,2
]}

Issa, Camille A. ^{[1
]}

机构：

[1] Lebanese Amer Univ LAU, Byblos, Lebanon

[2] Holderchem Bldg Chem, Baabda, Lebanon

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 30卷

关键词：

Bond strength; Epoxy-coated bars; Underwater concrete; Washout loss; STEEL; REINFORCEMENT; PERFORMANCE; ADMIXTURES; WASHOUT;

D O I：

10.1016/j.conbuildmat.2011.12.047

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A comprehensive research project was carried out to assess the effect of washout loss on bond between underwater concrete (UWC) and epoxy-coated reinforcing steel. Washout loss of investigated mixtures was evaluated using the CRD C61 test method. The compressive and bond strengths of UWC were determined using the same concrete samples that were used for washout loss measurement. Test results showed that the ultimate bond strengths of epoxy-coated bars embedded in UWC are affected by the level of washout loss. Compared to reference concrete sampled in dry condition, a decrease in bond varying from 15% to 25% was measured for UWC possessing washout loss in the range of 8% +/- 3%. The bond stress vs. slip behavior of epoxy-coated bars is remarkably different than the one obtained using reference concrete. Mixtures subjected to some washout exhibited less stiffness together with a decrease in the ultimate bond strength and shifting of the slip towards lower values. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：667 / 674

页数：8

共 50 条

[1] BOND STRENGTH OF EPOXY-COATED REINFORCING BARS
TREECE, RA
JIRSA, JO
[J]. ACI MATERIALS JOURNAL, 1989, 86 (02) : 167 - 174
[2] Evaluation of bond strength of epoxy-coated bars in concrete exposed to marine environment
El-Hawary, MM
[J]. CONSTRUCTION AND BUILDING MATERIALS, 1999, 13 (07) : 357 - 362
[3] Design rules for bond strength of epoxy-coated bars
Mendis, P
French, CW
[J]. MECHANICS OF STRUCTURES AND MATERIALS, 1997, : 217 - 222
[4] Corrosion resistance and bond strength of epoxy-coated steel bars
Elleithy, WM
Al-Amoudi, OSB
Sharif, AM
Maslehuddin, M
[J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 1998, 23 (2C): : 141 - 154
[5] EPOXY-COATED BARS FOR CONCRETE CONSTRUCTION
MIKAMI, N
ARAI, T
SHIRAKAWA, K
KOYAMA, S
[J]. TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1986, 72 (14): : 1889 - 1896
[6] BOND BETWEEN EPOXY-COATED REINFORCING BARS AND CONCRETE UNDER IMPACT LOADING
YAN, C
MINDESS, S
[J]. CANADIAN JOURNAL OF CIVIL ENGINEERING, 1994, 21 (01) : 89 - 100
[7] ANCHORAGE STRENGTH OF EPOXY-COATED HOOKED BARS
HAMAD, BS
JIRSA, JO
DEPAULO, NID
[J]. ACI STRUCTURAL JOURNAL, 1993, 90 (02) : 210 - 217
[8] BOND STRENGTH OF EPOXY-COATED REINFORCEMENT
CLEARY, DB
RAMIREZ, JA
[J]. ACI MATERIALS JOURNAL, 1991, 88 (02) : 146 - 149
[9] Bond of epoxy-coated steel bars to seawater sea sand recycled concrete
Huang, Yijie
Zhang, Yijian
Li, Xiaowei
Ying, Jingwei
[J]. STRUCTURES, 2021, 30 : 866 - 876
[10] Tensile Bond Strength of Post-Installed Epoxy-Coated Reinforcing Bars
Mills, Connor
Dymond, Benjamin Z.
[J]. JOURNAL OF BRIDGE ENGINEERING, 2021, 26 (02)

← 1 2 3 4 5 →