Performance of Fibre Reinforced Geopolymer Concrete: A Review

Abstract

This review comprehensively investigates the performance characteristics of FRGPC, with emphasis on the mechanical behavior, durability performance imparted by fibre addition. The role of different fibre types, shapes, aspect ratios, and volume fractions is discussed in detail, considering their influence on fresh properties like workability and setting time, and hardened properties including compressive strength, split tensile strength, flexural strength. The review highlights that steel fibres are most effective in enhancing mechanical strength, while polypropylene fibres contribute significantly to improving fire and chemical resistance, reducing permeability, and controlling shrinkage cracks. Furthermore, this paper examines the influence of fibre reinforcement on durability aspects such as resistance to acid and sulphate attack. The synergy between geopolymer chemistry and fibre-matrix interaction is explored through the lens of current experimental findings, with a focus on improving the material's resistance to aggressive environmental conditions.