Multi-Layer concrete block for a surface covering laid in bond and surface covering
(10) US2025207410A1
(22) 29.10.2024
(43) 26.06.2025
(57) A concrete block is described in the form of a surface covering element. The concrete block is made of at least one multi-layer concrete block body. The multi-layer concrete block body has a concrete block layer arranged on the concrete block top side, at least one second concrete block layer adjoining the first concrete block layer and a third concrete block layer adjoining the second concrete block layer. The third concrete block layer forms the concrete block underside. The second concrete block layer is a non-fines porous core layer. The first concrete block layer has a first porosity, the second concrete block layer has a second porosity, and the third concrete block layer has a third porosity, wherein a mean pore size of the pores in the third concrete block layer is smaller than the mean pore size of the pores in the second concrete block layer.
(71) Godelmann GmbH & Co. KG, DE
