Development of Eco-hybrid cement-based green concretes through CDW upcycling: Mechanical performance and environmental profile analysis.

This study aims to address the environmental challenges posed by construction and demolition waste (CDW) through its upcycling into a green concrete solution that supports the principles of the circular economy. To this end, a new generation Eco-hybrid cement was developed for the binder phase, using a ternary combination of CDW, calcium sulfoaluminate (CSA) cement, and Portland cement (PC). For the aggregate phase, 100% CDW-based recycled concrete aggregate was utilized.

Engineered Cementitious Composites with Super-Sulfated Cement: Mechanical, Physical, and Durability Performance.

This study aimed to bridge a research gap by exploring the utilization of super-sulphated cement (SSC) in engineered cementitious composites (ECCs) as a sustainable alternative to ordinary Portland cement (OPC)-based mixtures. The SSC was designed with slag, gypsum, and a small amount of OPC. The primary objective was to investigate the effects of incorporating SSC, both with and without fly ash (FA), at various FA/SSC ratios between 0 and 1.