EXPERIMENTAL INVESTIGATION ON FLEXURAL STRENGTHENED RC BEAMS USING FRP BONDING SYSTEM-A REVIEW

Syed Ibrahim S¹, Kandasamy S²

¹Associate Professor, Department of Civil Engineering, Ilahia College of Engineering and Technology, Muvattupuzha 686673, Kerala, India.

²AssociateProfessor, Department of Civil Engineering, Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600 062, Tamil Nadu, India.

Abstract

In the past decades, widespread experimental research had conducted to understand the structural strengthening performance of carbon and glass fibre reinforced polymer (FRP) laminated / bonded reinforced concrete (RC) beams under static loading. Various studies include bond, flexural and shear strengths, debonding, durability properties like resistance to chloride ion penetration, the behaviour of FRP lamination at an elevated temperature and freeze-thaw exposure, corrosion resistance, and seismic behaviour, have been carried out. This paper reviews 415 beam specimens from the existing studies, especially on flexural strengthened RC beams using externally bonded FRP laminates. Critical observations were made, on the various aspects, like beam dimension, concrete strength, area of tensile steel reinforcement, FRP type, load-carrying capacity, and failure mode. The paper also suggests a proficient method for the externally FRP strengthening RC beams by incorporating different volume fractions of randomly oriented discrete short-fibres into the fresh-state of a concrete matrix to sort out the common (i.e., ductility depletion, debonding) issues.

Keywords

• CFRP,  GFRP,  Strength,  Ductility,  Debonding.

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Cite this Article as Follows

Syed Ibrahim S & Kandasamy S (2022). EXPERIMENTAL INVESTIGATION ON FLEXURAL STRENGTHENED RC BEAMS USING FRP BONDING SYSTEM-A REVIEW. In Proceedings of the International E-Conference on Novel Innovations and Sustainable Development in Civil Engineering 2022 (1st ed., Vol. 1, p. 101). London, GB: ASDF International.