Flexural strengthening and rehabilitation of reinforced concrete beam using BFRP composited

This research involves the study of the basalt fibers emerging as alternative forms of strengthening and rehabilitation RC beams. Basalt fibers have high strength, stiffness, and corrosion resistance. In this thesis two studies are submitted., In the first study investigation is based on BFRP strengthened RC beams, with particular attention to the ductility of strengthened elements and their failure modes. Eight beams used in this study. The ductility is increased when RC beams strengthened by BFRP and the crack patterns of strengthened elements vary more than from un-strengthen beam. Additionally, cracks in strengthened elements tend to increase in number up to failure, unlike their un-strengthened counterparts. The second study is the finite element simulation, the research submits an extensive study on the strengthening and rehabilitation of damaged full-scale RC beams due to corrosions in the main reinforcement caused by BFRP sheets. Different parameters were taken into consideration such as corrosion grade, BFRP wrapping schemes, and the number of layers. The flexural performance of the models that build up as the control model and the damaged and the repaired methodologies by BFRP that are adopted and tested by others under the effects of four-point static loadings were also underwent examination. The full interaction at BFRP-concrete interface and the full bonding between sheets presupposed were investigated for all models. The numerical analysis findings were compared with the experimental measurements and found to be in good agreement.