Long-term bond performance of GFRP bars in concrete under temperature ranging from 20 °C to 80 °C

被引：78

作者：

Masmoudi, Radhouane ^{[1
]}

Masmoudi, Abdelmonem ^{[2
]}

Ben Ouezdou, Mongi ^{[2
]}

Daoud, Atef ^{[2
]}

机构：

[1] Univ Sherbrooke, Dept Civil Engn, Fac Engn, Sherbrooke, PQ J1K 2R1, Canada

[2] Natl Engn Sch Tunis, Civil Engn Lab, Tunis, Tunisia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2011年 / 25卷 / 02期

关键词：

Bond; Concrete; FRP bars; Pull-out testing; Bond-slip modelling; Temperature effect; FRP; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2009.12.040

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Eighty pull-out specimens were used to study the effect of temperature ranging from 20 degrees C to 80 degrees C in dry environment on bond properties between Glass Fiber Reinforced Polymer (GFRP) bars and concrete. The pullout-test specimens were subjected during 4 and 8 months to high temperatures up to 80 degrees C and then compared to untreated specimens (20 degrees C). Experimental results showed no significant reduction on bond strength for temperatures up to 60 degrees C. However, a maximum of 14% reduction of the bond strength was observed for 80 degrees C temperature after 8 months of thermal loading. For treated specimens, the coefficient beta in the CMR model, which predicts the bond-stress-displacement behavior, seems to be dependant with the temperature. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：486 / 493

页数：8

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