The new Celitement cement saves on energy and CO2. Photo: KIT

More information on the Celitement procedure:

www.helmholtz.de/kit-celitement

Climate Friendly Cement Receives Award

The worldwide production of cement uses more than two percent of overall energy consumption and is responsible for over five percent of CO₂ emissions. KIT researchers around Dr Peter Stemmermann have developed a more climate friendly cement. They have now received the German Material Efficiency Award (Deutscher Materialeffizienz-Preis) awarded by the German Federal Ministry of Economics and Technology (BMWi) and endowed with 10,000 Euro. Compared to conventional cement, Celitement requires only half the energy and emits only half the amount of CO₂ in the production process. In addition, the new procedure uses only a third of the usual amount of calcium carbonate and works entirely without the grinding additive gypsum. So far, the KIT scientists have produced the new cement on a laboratory scale. After an intensive test phase, the Celitement GmbH now is building a pilot plant with an investment volume of five million Euro on the Campus North of the KIT. As of spring 2011, 100 kilogrammes per day are to be produced at the site.

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