We are pleased to announce that the next ROC&TOK webinar will take place on April 3rd, 2025 at 3PM CEST/Paris Time and will be one hour long (30-minute presentation + 30-minute interaction). The registration for this webinar is free.
Speaker: Dr Rupert Myers, Imperial College London, United Kingdom
Hosts: Dr Prannoy Suraneni, University of Miami, United States and Prof. Karen Scrivener, EPFL, Switzerland
Title: Which CO2 mineralisation technologies for concrete materials are the most promising?
Many CO2 mineralisation technologies are being researched, commercialised, and applied to concrete materials, often attracting huge academic, public, and commercial interest and financial investment. However, their societal value is frequently misunderstood. In this presentation I will evaluate ten of the main CO2 mineralisation technologies for concrete materials to show which currently have the most favourable economic performance and climate change impact reduction potential. The results will be compared with the claimed performance of prominent commercial examples. This presentation will show that the most promising CO2 mineralisation technologies are typically those that produce ‘reactive additives’ for concrete, i.e., supplementary cementitious materials. The economic and environmental potentials of CO2 mineralisation technologies for producing aggregates and concrete products are variable and generally poorer. Improving recovery of uncarbonated cement paste from concrete demolition waste is crucial for maximising the application and benefits of CO2 mineralisation.
