Structural performance of hybrid fiber geopolymer concrete beams

Abstract

This research work aims at investigating the structural properties of hybrid fiber reinforced geopolymer concrete specimens such as load-deflection behaviour, stiffness, ductility, toughness index. In this research work, effort has been made towards reducing the brittleness of geopolymer concrete by the addition of glass (high modulus) and polypropylene (low modulus) fibers inside GGBS based geopolymer concrete made of M-sand. The glass and polypropylene fibers were added in various proportions such as 1/0, 0.75/0.25, 0.5/0.5, 0.25/0.75,0/1. The research work recorded enhancement of structural properties of geopolymer concrete under ambient curing. This work paved way for the utilization of fibers inside geopolymer concrete and replace cement concrete in all facets.