Recycled Aggregate Concrete Made with Various Types of Effluents: A Step Towards Green Concrete A Step Towards Green Concrete

Abstract

The quest for an eco-friendly environment faces challenges posed by cement's high carbon footprint, significant amounts of building and demolition waste, and industrial waste effluents. This study aims to explore the potential of recycled aggregate geopolymer concrete (RGC) produced using four types of effluents to enhance construction sustainability. Each effluent replaced fresh water entirely in RGC to assess its impact on split tensile strength (STS) and compressive strength (CS) at various curing periods. The findings indicate that the textile industry's effluent performed well in enhancing RGC's CS (25% higher than the control mix) and STS (17% higher than the control mix). Furthermore, the study showed that using effluents from textile, fertilizer, and sugar factories had no significant effect on STS but significantly influenced the CS of the concrete.