Glass Fiber Reinforced Concrete

Abstract

Glass-fibre reinforced concrete (GRC) is a material made of a cementatious matrix composed of cement, sand, water and admixtures, in which short length glass fibres are dispersed. It has been widely used in the construction industry for non-structural elements, like façade panels, piping and channels. GRC offers many advantages, such as being lightweight, fire resistance, good appearance and strength.In this study trial tests for concrete with glass fibre and without glass fibre are conducted to indicate the differences in compressive strength and flexural strength by using cubes of varying sizes. Various applications of GFRC shown in the study, the experimental test results, techno-economic comparison with other types, as well as the financial calculations presented, indicate the tremendous potential of GFRC as an alternative construction material.

Conclusion

1. Addition of glass fiber in reinforced concrete increases the toughness by 1157% compare with conventional reinforced concrete. The value of toughness observed maximum 272.4 KNmm when using fiber content 0.67% and 1.25% steel (12 mm reinforcement bar)
2. The modulus of elasticity of glass fiber reinforced concrete is increases 4.14% compared with conventional reinforced concrete
3. The percentage increase of compressive strength of various grades of glass fiber concrete mixes compared with 28 days compressive strength is observed 37%.