Flexural performance of FRP-strengthened concrete beams: a review

Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (21-26)

DOI:10.52113/3/eng/mjet/2025-13-01/21-26

Research Article By:

Tarteel Abdullah Jabbar

Corresponding author E-mail: tarteel.abulla.cieng@mu.edu.iq


ABSTRACT

The flexural performance of FRP-strengthened beams has become a critical focus in concrete structural engineering, particularly for enhancing strength, ductility, and durability. This paper provides a critical review of recent advancements in the use of FRP materials for flexural strengthening of concrete beams, emphasizing experimental findings, theoretical models, and practical applications. Key parameters affecting flexural performance—such as FRP type (carbon, glass, aramid), bonding techniques, and failure mechanisms—are thoroughly examined. While FRP materials offer advantages like a high modulus-to-weight ratio and corrosion resistance, challenges such as delamination, environmental durability, and cost remain significant. Additionally, emerging trends in reinforced or hybrid FRP systems are discussed. This review aims to offer researchers, engineers, and professionals comprehensive insights to develop effective and innovative solutions for concrete beam strengthening.

Keywords: Failure, Reinforced concrete beams, Flexural behaviour, Fibre reinforced polymer.

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