Bond Performance of Basalt Fiber-Reinforced Polymer Bars to Concrete

被引：141

作者：

El Refai, Ahmed ^{[1
]}

Ammar, Mohamed-Amine ^{[2
]}

Masmoudi, Radhouane ^{[3
]}

机构：

[1] Univ Laval, Dept Civil & Water Engn, Quebec City, PQ G1V 0A6, Canada

[2] Univ Laval, Quebec City, PQ G1V 0A6, Canada

[3] Univ Sherbrooke, Sherbrooke, PQ J1K 2R1, Canada

来源：

JOURNAL OF COMPOSITES FOR CONSTRUCTION | 2015年 / 19卷 / 03期

关键词：

Concrete; Bars; Bonding; Failure modes; Fiber reinforced polymer; Pullout; HIGH-STRENGTH CONCRETE; FRP REBARS; GFRP BARS; BEHAVIOR; DEGRADATION;

D O I：

10.1061/(ASCE)CC.1943-5614.0000487

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents the test results of a study on the bond behavior of basalt fiber-reinforced polymer (BFRP) bars to concrete. Thirty six concrete cylinders reinforced with BFRP bars and twelve cylinders reinforced with glass fiber-reinforced polymer (GFRP) bars were tested in direct pullout conditions. Test parameters included the FRP material (basalt and glass), the bar diameter, and the bar embedment length in concrete. Bond-slip curves of BFRP and GFRP bars revealed similar trends. BFRP bars developed average bond strength 75% of that of GFRP bars. All BFRP specimens failed in a pullout mode of failure along the interfacial surface between the outer layer of the bar and the subsequent core layers. The influence of various parameters on the overall bond performance of BFRP bars is analyzed and discussed. The well-known BPE and modified-BPE analytical models were calibrated to describe the bond-slip relationships of the bars. Test results demonstrate the promise of using the BFRP bars as an alternative to the GFRP bars in reinforcing concrete elements. (C) 2014 American Society of Civil Engineers.

引用

页数：12

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