An experimental investigation utilizing coconut shells in place of coarse aggregate in lightweight and steel fiber concrete

This Concrete is among the most widely used building materials worldwide. Light weight aggregate concrete (LWAC) is a vital and versatile material in modern construction. Due to its lower density and superior thermal insulation qualities, it has grown in popularity. As evidenced by the numerous impressive light weight concrete (LWC) structures found all over the world. Many architects, engineers, and contractors are aware of the inherent economies and advantages offered by this material. Although typically 25–35% lighter than regular concrete, lightweight concrete still has comparable strengths. Because of its reduced self-weight, enhanced seismic structural response, and cheaper foundation costs, structural LWC offers design flexibility and cost savings. When making LWC, this coconut shell can be crushed and used as a coarse aggregate. Coconut shell concrete (CSC) can be used in rural areas, areas with a lot of coconut trees, and locations where it is expensive to use traditional aggregates. Adding a certain amount of steel fibre to concrete will also strengthen it and improve its ductility, energy absorption, impact resistance, and crack resistance qualities. It has been determined that adding 3% steel fibre and replacing 10%, 20%, and 30% of the coarse aggregate in concrete of grade M20 with coconut shell is feasible.