Concrete slab with drainage holes
(10) EP4223930A1
(22) 08.02.2022
(43) 09.08.2023
(57) A prefab concrete slab (1) comprising: a concrete slab having an upper surface and a lower surface;a plurality of inserts (5) defining holes extending from an upper surface to a lower surface of the concrete slab; wherein the inserts have a conical shape with the holes defined thereby having an increasing cross-sectional area from the upper surface towards the bottom surface of the tile.
(71) Saveyn-Alluyn nv (BE)
