Flexural strength of Glass fiber reinforced polymer concrete beam with artificial Fine aggregate

Abstract

Reinforced concrete Structures with usual steel reinforcements pose a serious threat in aggressive climate factors due to the increasingly rapid concern of corrosion. Because of their resistance to corrosion, high strength-to-weight ratios, and ease of handling, Glass Fiber Reinforced Polymer (GFRP) bars are becoming the emerging technology of the future. Another major issue is scarcity of river sand for making concrete. Hence a research was carried out on concrete mix with artificial M sand for partial fragment of river sand and GFRP bars replacing conventional steel reinforcement.Consequently, an attempt was explored on flexural strength of M40 grade concrete beam reinforced with GFRP (glass fiber-reinforced polymer) reinforcement and mixed with artificial sand or M sand as fine aggregate. A comparative analysis was made between tensile strength of GFRP reinforcement and conventional reinforcement, flexural behaviour of rectangular conventional concrete beam and concrete beam using M sand reinforced with GFRP reinforcement. From the test result, it was found that the beam with combination of GFRP and M sand is achieving 12% higher flexural strength than ordinary conventional concrete beam and withstanding higher deflection.