Bohnet al. (2025): CarbonFiberStone: A new carbon negative and cost-effective alternative to conventional building materials by fusing three different CDR technologies.

Friedrich J. Bohn, Uwe Arnold, Ömer Bucak, Erik Frank, Leonie Schrafstetter and Kolja Kuse IN: Environmental Research Letters, https://doi.org/10.1088/1748-9326/addfed

This study introduces CarbonFiberStone (CFS), a novel lightweight construction material, and assesses its carbon footprint in a specific buiding application. CFS is defined as a millimetre-thin bio-based carbon fiber fabric bonded to compression-resistant stone slabs using an adhesive. CFS is extremely resistant to compression and tension. The resulting stone powder from the stone cutting process is used for enhanced weathering. The wall element presented here incorporates a layer of biochar for insulation purposes. Using Life Cycle Assessment (LCA) and Techno-Economic Analysis (TEA), the authors compare five CFS-based building blocks with two conventional reinforced concrete blocks in single and multi-storey residential buildings.

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