CO2 mineralization process of industrial by-products for the production of sustainable mortars

The study aims to investigate feasible strategies to mitigate CO2 emissions of cement industry by acting on two different levels, capturing the CO2 emitted in industrial by-products, and reducing cement production through its partial substitution with these carbonated materials. A slurry accelerated carbonation was implemented on Electric Arc Furnace (EAF) slag and Cement Bypass Dust (CBPD) obtaining respectively a CO2 uptake of 6.7% and 26.4%. The processed powders were adopted for the production of mortar samples. Hydration reactions and compressive strength were analysed to investigate the feasibility in the use of the mineralized materials as partial substitute of cement for the production of low carbon footprint cementitious mortars.