This project involves the development of a repair concept for damaged curtain-type reinforced concrete facades and load-bearing concrete elements, such as those used for parapets. Here, the fastening is to be renewed and a load-bearing replacement system is to be applied by means of basalt reinforcement and a thin shotcrete layer. The latter is to meet the requirements of an exposed concrete facade.

The project team supplemented various established and innovative methods with a new combination of materials: basalt reinforcement in the fair-faced concrete and a textured sprayed concrete. To achieve the repair concept as desired, the feasibility of using basalt-reinforced concrete facade additions must first be demonstrated. By applying a highly alkaline sprayed mortar, the old concrete is realkalized and the reinforcement is thereby repassivated. A particularly innovative aspect of the concept is the use of a new type of basalt reinforcement in the form of bars for the repair.