Buildings made from reinforced concrete or concrete with synthetic reinforcement fibers require enormous quantities of finite raw materials and energy. Furthermore, they cause high CO₂ emissions. One possible, more sustainable alternative: textile-reinforced concrete. In collaboration with two project partners, we are analyzing and evaluating reinforcements made from flax fibers for concrete components. At the Fraunhofer WKI, we are producing a variety of leno fabrics for this purpose. These are to be embedded – both dry and with a bio-based coating – in concrete. The overall objective is the fabrication of a façade panel as well as the trial installation of a natural-fiber-reinforced industrial floor as technology demonstrators.