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@article{205978,
        author = {Avinash Gajanan Tashildar and Omkar Prakash Suryawanshi and Abhijeet Daji Patil},
        title = {A Comprehensive Review of Glass Fiber Reinforced Polymer (GFRP) Bars as Reinforcement in Concrete Beams: Flexural Behavior, Serviceability and Design Provision},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {1},
        pages = {9088-9102},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=205978},
        abstract = {The corrosion of steel reinforcement is highlighted as one of the most widespread and economically damaging durability issues facing reinforced concrete structures globally. GFRP (Glass Fiber Reinforced Polymer) bars are proposed as a viable alternative, possessing properties such as corrosion resistance, a high tensile strength-to-weight ratio and non-magnetic characteristics. This paper offers a comprehensive review of GFRP bar utilization as internal reinforcement in concrete beams, drawing upon experimental, analytical, and numerical studies from the last decade. It covers GFRP composite mechanical properties, manufacturing techniques, flexural and shear behavior, bond properties, and serviceability (deflection and crack). Durability under harsh conditions, finite element modelling and simulation and the application of machine learning also receive attention. A significant finding is that GFRP-reinforced concrete beams deflect 2.0 to 2.5 times more than steel-reinforced beams under service loads due to GFRP bars' lower modulus of elasticity (40 - 60 GPa) and linear-elastic behavior. Existing design provisions, notably ACI 440.1R-15 and ACI 440.11-22, are reported to underestimate service-level deflections by 15 - 25%, especially in under-reinforced and slender beams. Identified research gaps include the absence of integrated frameworks combining experimental, analytical, and numerical methods for equivalent strength design, the need to validate design provisions for specific regions and the requirement for improved serviceability prediction models. The research advocates for GFRP reinforcement in corrosion-prone structures, stressing the importance of serviceability driven design and code enhancements.},
        keywords = {Glass Fiber Reinforced Polymer (GFRP), reinforced concrete beams, flexural behavior, serviceability, bond-slip, durability, finite element analysis, machine learning, design codes.},
        month = {June},
        }