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Fibre Reinforced Polymer (FRP) has emerged as a transformative material in modern construction, significantly enhancing the structural performance of concrete beams. This study investigates the impact of FRP reinforcement, mainly using carbon (CFRP) and glass (GFRP) composites, on concrete beams’ strength, crack resistance, and flexural behavior. A comprehensive experimental program was conducted to prepare an M40-grade concrete mix per IS:10,262–2019 standards. Beams were reinforced with FRP sheets through U-wrapping techniques and subjected to compressive, flexural, and split tensile strength tests over 7, 14, and 28 days. The results indicate that FRP reinforcement significantly improves load-bearing capacity, with CFRP exhibiting the highest ultimate strength of 120 kN, followed by GFRP of 106 kN. The study highlights FRP’s advantages, including its high strength-to-weight ratio, corrosion resistance, and durability, making it a viable alternative to traditional steel reinforcement. The findings reinforce the potential of FRP in seismic retrofitting and high-performance structural applications, paving the way for more resilient and sustainable construction methodologies.

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Evaluating Flexural Strength of FRP-Strengthened Concrete Beams Using U-Wrapping

  • 会议论文

  • 发表日期：

    2026年

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  • T. Selvamuthukumaran,
  • N. Pannirselvam,
  • S. Azhagarsamy

摘要

Fibre Reinforced Polymer (FRP) has emerged as a transformative material in modern construction, significantly enhancing the structural performance of concrete beams. This study investigates the impact of FRP reinforcement, mainly using carbon (CFRP) and glass (GFRP) composites, on concrete beams’ strength, crack resistance, and flexural behavior. A comprehensive experimental program was conducted to prepare an M40-grade concrete mix per IS:10,262–2019 standards. Beams were reinforced with FRP sheets through U-wrapping techniques and subjected to compressive, flexural, and split tensile strength tests over 7, 14, and 28 days. The results indicate that FRP reinforcement significantly improves load-bearing capacity, with CFRP exhibiting the highest ultimate strength of 120 kN, followed by GFRP of 106 kN. The study highlights FRP’s advantages, including its high strength-to-weight ratio, corrosion resistance, and durability, making it a viable alternative to traditional steel reinforcement. The findings reinforce the potential of FRP in seismic retrofitting and high-performance structural applications, paving the way for more resilient and sustainable construction methodologies.