Analysis of Effect of Glass Fibre on Strength of Concrete

As we all know in modern-day construction, concrete is a conventional building material used for its properties to withstand high compression, ease to handle and display high durability in rough environmental conditions. Normal concrete has various desired properties but it has major flaws like low tensile strength, less ductility and it contains soluble salts. Soluble salts further become the cause for efflorescence. To overcome these insufficiencies we are using glass fibre mixed with normal concrete to increase its tensile strength, ductility and fire resistance. Glass Fibre Reinforced Concrete (GFRC). Glass fibre is mixed with normal concrete mix in proportion to provide more tensile strength to the concrete. Glass fibre is used with concrete as it displays excellent compatibility with concrete and yields high strength in the final product. Glass fibre is mixed with normal concrete in different doses of glass fibre 1%, 1.5% and 2.5% by weight of concrete, no admixture is used to enhance workability. Standard sized cubes and beams of glass fibre reinforced concrete was casted as per Indian Standard Code and tested for compressive strength and flexural strength for 7 days, 14 days and 28 days and then results were compared with the strength of cubes and beams of normal concrete of M25 grade.