Partial Replacement of Coarse Aggregate with EPS Beads

The rising for natural aggregates in construction has caused resource exhaustion and environmental issues, prompting the search for sustainable options. This research explores the substitution of coarse aggregates with Expanded Polystyrene (EPS) beads in concrete, with the goal of tackling issues related to aggregate shortages and the management of EPS waste. EPS beads, recognized for their light weight, thermal insulation capabilities, and moisture resistance, provide possible advantages for the creation of lightweight and environmentally friendly concrete. The study assesses how different volumes of EPS beads as a replacement impact the physical and mechanical characteristics of concrete, such as density, workability, compressive strength, and durability. Experimental findings indicate that raising the EPS bead content decreases the self-weight of concrete and improves thermal insulation, although it negatively affects compressive strength. An optimal replacement ratio achieves a balance between structural performance and sustainability, rendering EPS-concrete appropriate for non-load-bearing structures, lightweight construction, and thermal insulation uses. The Compressive strength of 5%, 10% EPS based concretes compared to control concrete.This research shows the viability of utilizing EPS beads as a partial substitute for coarse aggregates, promoting sustainable construction methods and lessening environmental effects. The results offer important perspectives on the mix design and real-world uses of EPS-concrete, promoting its use as an eco-friendly option in the construction sector.