Bond performance of basalt fiber-reinforced polymer bars to concrete

Authors: El Refai, Ahmed; Ammar, Mohamed Amine; Masmoudi, Radhouane
Abstract: 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. Read More:
Document Type: Article de recherche
Issue Date: 11 August 2014
Open Access Date: Restricted access
Document version: VoR
This document was published in: Journal of Composites for Construction, Vol. 19 (3), 1-12 (2015)
American Society of Civil Engineers
Alternative version: 10.1061/(ASCE)CC.1943-5614.000048
Collection:Articles publiés dans des revues avec comité de lecture

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