CO₂-negative DACCUSS house wall receives JEC Composites Innovation Award 2025

In the run-up to this year's JEC World's Leading Trade Fair for Composite Materials in Paris, the prototype of a sustainable house wall developed in the BMBF-funded DACCUSS-Pre project was honoured. Compared to conventional reinforced concrete construction methods, it can capture CO₂ during production instead of emitting it. In this project, our Department of Solar Chemical Process Development investigated the possibilities of energy-efficient carbon fibre production.

The house wall is made of a CFS^® material (Carbon Fiber Stone), which combines easily weatherable stones, bio-based fibres and high-quality BioChar for the thermal insulation of the wall. This creates an alternative to conventional CO₂-intensive concrete. Per square metre, 59 kg of carbon dioxide is bound, while conventional cement walls release 98 kg. This results in a negative CO₂ footprint.

The consortium expects the transfer of the technology to industry to make an important contribution to sustainable construction and to deepen expertise in this area. A continuation of the research work is already in preparation.

Partners:

Responsible for the construction, design and development of the DACCUSS house wall: TechnoCarbon Technologies GbR; Deutsches Institut für Textil- und Faserforschung (DITF), University Hamburg (UHH), Labor für Stahl- und Leichtmetallbau GmbH (LSL), AHP GmbH & Co. KG, Technical University of Munich (TUM), GVU mbH, Carbon Collect Ltd., Gallehr Sustainable Risk Management GmbH, Peer Technologies GmbH & Co. KG, GREIN srl, Convoris Group GmbH, RecyCoal GmbH, ITA, International Centre for Sustainable Textiles at the RWTH Aachen, LISD GmbH.

Further information on the JEC Composites Innovation Award:

https://www.jec-world.events/program/innovation-awards