Experimental Study on the Behaviour of Hybrid Fiber Reinforced Geopolymer Concrete under Ambient Curing Condition

Abstract

Recent studies have shown that Geopolymer concrete is one of the emerging building materials worldwide. Various studies have been conducted on the Geopolymer concrete and the engineering properties of the material have been improved drastically. Geopolymer concrete is found to be comparatively brittle than the ordinary conventional concrete. To counteract this effect fibers are incorporated in to the Geopolymer concrete. In this research work, glass fibers and polypropylene fibers are added to the Geopolymer concrete in various proportions and its influence was studied over the fresh and hardened properties of concrete such as workability, compressive strength, split tensile strength, flexural strength and ductility factor. The Geopolymer concrete in this study is GGBS based as it involves ambient curing. The various materials were proportioned based on the Rangans mix design. Fair results have been obtained in the study and it was found that the brittleness could be controlled in the Geopolymer concrete by appropriate proportioning of fiber.