Review paper on the Mechanical Behavior of Fiber-Reinforced Coconut Shell Concrete

The increasing need for sustainable construction materials has resulted in the advancement of alternative aggregates and reinforcement techniques in concrete. One notable innovation is fibre-reinforced coconut shell concrete (FRCSC), which employs coconut shell as a partial or complete substitute for traditional coarse aggregate, along with various fibres (including steel, polypropylene, or coir) to improve strength and ductility. This review provides an overview of recent research concerning the mechanical performance, durability, and microstructural properties of FRCSC. Research findings demonstrate that incorporating fibres effectively offsets the diminished strength associated with lightweight coconut shells, leading to notable enhancements in tensile, flexural, and impact strength, all while preserving excellent workability and lowering density. The study concludes that fiber reinforcement enhances coconut shell concrete, positioning it as a viable sustainable construction material for both structural and non-structural applications.