Strengthening of Concrete Specimens with Glass Fiber Reinforced Polymer Sheets

Document Type : Original articles.

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Nile Higher Institute of Engineering & Technology

Abstract

This study details the specimens, material qualities, testing setup, instruments, and technique. The experimental programme featured five cylinders, four cubes, and ten PC beams. The cylinder specimen had 200 mm sides and 100 mm diameter. The 100*100*100-mm cube specimen had length sides. Beam specimens were 500 mm long and 100*100 mm wide. The specimens were loaded to failure under increasing static stresses. Cylinder, cube, and beam specimens were examined for compressive and flexural strength, respectively. The compressive and bending strength testing followed ECP 203-2018, the Egyptian Code for Design and Construction of Reinforced Concrete Structures. Two specimens of each type were control specimens. Externally Bonded (EB) Fibreglass Sheets with varied strip widths reinforced the other sample. ECP 208-2005, the Egyptian Code of Practise for the Use of Fibre Reinforced Polymer (FRP) in Construction, guided the strengthening process. Faculty of Engineering, Nile Higher Institute, Mansoura city, conducted all experiments in the Material Lab. The results show that the researched strengthening methods can improve the compressive and flexural behaviour of concrete specimens with GFRP sheets and increase load capacity compared to the control specimens.

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