Büscher Recyclinghaus

The so-called “Büscher Wall” is the result of years of development in the field of concrete recycling. Instead of conventional sand and gravel, mixed demolition waste is used as aggregate. Concrete components produced with this method achieve a reduction in CO₂ emissions of approximately 13% compared to standard concrete. The recycled concrete used is officially approved for applications in unreinforced, reinforced, and load-bearing structural elements. Testing and certification were carried out by independent laboratories and academic institutions. This approach enables the complete reuse of construction debris in a certified building product.

The building comprises three residential units and was constructed using a precast system. Load-bearing walls as well as ceiling and façade elements were prefabricated in the factory and assembled on-site. The components were delivered ready for finishing in dry construction, significantly reducing construction time. The structural shell was completed within a few months. Approximately 200 metric tons of recycled material were used in the project.

The building serves as a practical example of integrating circular building materials into multi-story residential construction. It demonstrates that legally compliant and economically viable implementation using 100% recycled concrete is feasible—without compromising on technical performance or architectural quality. The Recyclinghaus Heek thus stands as a model for a resource-conscious approach to construction and offers a solid contribution to the transition toward a circular building economy.