Ho et al. (2025): Assessment of product carbon accounting associated with carbon dioxide-storing concrete via mineral carbonation and utilization
Hsing-Jung Ho, Yoshito Izumi and Atsushi Iizuka, IN: Journal of Environmental Chemical Engineering, https://doi.org/10.1016/j.jece.2025.118458
For a sustainable transition toward climate neutrality, the cement industry continually not only enforces energy conservation measures but focuses on carbon management. Among the decarbonized measures to produce low-emission cements with a CO₂ footprint, the cement and concrete sectors have developed a carbon recycling system integrating the complete concrete value chain. Within this system, enforced mineral carbonation technologies, such as the “mineral carbon capture” (for anthropogenic CO₂) or “mineral direct air carbon capture” (for atmospheric CO₂) technologies, are applied to generate sustainable carbonates, labeled as recarbonates. This leads to CO₂ emissions reduction and further promote product carbon storage in cement-based matrices. In this study, a methodology to calculate product CO₂ accounting associated with a carbon dioxide-storing (CDS) concrete was established. CDS concrete contains “recarbonates” generated by both carbonation technologies.