Schwenk Zement and thyssenkrupp Polysius jointly developed an innovative technology for the activation of clay, to reduce the CO2 in the global cement and concrete production. The meca-clay technology enables the activation of all types of clay using only electrical energy instead of fossil fuels. It is based on the booster mill technology from Polysius with a mechano-chemical activation, which is used in Schwenk’s Celitement. A first demonstration unit will be installed in Schwenk’s Allmendingen cement plant and be commissioned in 2025.