Investigation on properties of mortar with the use of simply shredded post-consumer plastic waste aggregate and molasses.

The world faces significant challenges in managing plastic waste, which does not decompose and releases toxic gases when burned, posing severe health hazards. Concurrently, Nepal's heavy burnt-clay brick walls in reinforced concrete building structures urgently need replacement with lightweight walls. To tackle these dual challenges, this paper uniquely explores the innovative reuse of post-consumer plastic waste aggregate (PWA) as a sustainable alternative to sand, aiming to produce lightweight mortar for enhanced building applications.