Investigation on combined use of biochar and ground granulated blast furnace slag as a supplementary admixture in concrete.

Concrete is the most used material globally, with cement production causing 8% of emissions. Waste-based supplementary cementitious materials (SCMs) offer a partial cement replacement to address climate goals. The present study explores using Ground Granulated Blast Furnace Slag (GGBS) and biochar as SCMs to elevate concrete's sustainability while maintaining structural performance.