Our silica sands have also been attributed an essential role in the concrete building block construction, these aggregates being one of the main constituents of the concrete used in this segment. The concrete building block is a prefabricated product in compliance with DIN 18333, the term building block defining the basic property of this product: An artificial workpiece, the visual surfaces of which can be machined using a wide range of techniques. Concrete building blocks are particularly popular as floor and stair coverings, facade elements and as gravestone borders. A wide range of design options results from the possibility of admixing coloured pigments and a variety of aggregates. The constant high product quality of our raw materials makes the Quarzwerke Group an ideal partner for concrete building block construction—you can also benefit from this!