OBERFLÄCHENBEHANDELTER BETONWERKSTEIN UND VERFAHREN ZU DESSEN HERSTELLUNG

The aim of the invention is to treat the surface of a cut stone, particularly a cast stone or terrazzo, in order to obtain properties such as acid and alkali resistance, resistance to customary detergents and cleaning agents, the inhibition of leaching appearances, efflorescences and of superficial discolorations associated therewith, as well as hydrophobic and anti-soiling behavior, whereby obtaining a highly wear resistant product, and the aforementioned properties are effective and useful, in particular, even when this product is horizontally arranged to form a non-slip floor or outer surface covering. To this end, the invention provides a cut stone whose surface has first areas, in which preferably the hard constituents of the cut stone are located and which are elevated with regard to second areas. At least the second areas are coated with a hydrophobic, organic-inorganic nanocomposite, and the surface of the coated areas is provided with a specific microroughness. The invention can be used in the production of building materials, preferably flooring tiles.