Effect of recycled of recycled glass aggregates on mechanical and physical properties of structural concrete

The exponential expansion in concrete use has put the environment under immense pressure to supply cement, aggregates, and water. Natural resource consumption impacts the environment and undermines the concrete industry. A swift shift towards sustainable concrete is required considering the emergency triggered by human activity on the climate. Glass concrete (GC) has sparked the curiosity of the construction industry owing to its environmentally friendly approach. The study uses recycled glass aggregates (RGA) to partially replace natural aggregates (NA) to produce sustainable structural concrete with superior mechanical properties. 20% glass concrete outperformed all others in fresh and hardened concrete. Only 75% glass blend demonstrated a slight decrease in compressive strength due to drop in density. Glass concrete showed a lower water absorption capacity. However, glass has triggered an alkali-silica (ASR) reaction, reducing the durability of the concrete significantly.