Background and goals of the project 

In this research, previously unused mineral secondary raw materials are being investigated for their suitability as a resource-conserving and climate-friendly cement main constituent. Physical, chemical-mineralogical as well as cement- and concrete-technical investigations will be carried out to show that calcined clays can be produced from various mineral secondary raw materials in accordance with DIN EN 197-1 and developed to marketability.

Calcined clays produced from secondary mineral raw materials could make an important contribution to the ongoing transformation process of the cement industry, which aims to produce CO2-neutral cement by 2050. The use of calcined clays from secondary raw materials instead of conventional cement main constituents or high-quality primary clays can make an important contribution to making this transformation process not only climate-friendly, but also resource-efficient.


This project of VDZ Technology gGmbH, Toulouser Allee 71, 40476 Düsseldorf is funded by the Central Innovation Programme for SMEs (ZIM) under the code KK5029102KI0.

Person to contact

Do you have any questions on this subject?

Dr Jörg Rickert
Chemistry and mineralogy

+49-211-45 78-283

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