Ultra-draining paving blocks
(10) WO2026147318A1
(22) 24.12.2025
(43) 09.07.2026
(57) The present invention relates to innovative multilayer draining paving blocks and slabs which are designed to improve the management of rainwater in urban and outdoor environments while meeting durability and performance requirements. These paving blocks and slabs are distinguished by a two-layer structure combining a robust mass layer, composed of concrete enriched with alveolar volcanic rocks or aggregates derived from alluvial or massive quarries in a proportion of between 70% and 80% and between 20% and 25% cement, and a permeable finishing layer consisting of between 70% and 80% quartz sand and between 20% and 25% cement. The mass layer ensures high mechanical solidity, suitable for frequent loads of pedestrians and light vehicles, while the finishing layer optimises perineability for rapid and homogeneous infiltration of water, while providing a weather-resistant and abrasion-resistant non-slip surface. The invention offers a modular, aesthetic and efficient solution for various applications such as pavements, paths, car parks and public places. The invention also relates to a method for producing such paving blocks and slabs including pressing and compacting the layers ...
(71) Menara Prefa [MA]; Km, 0,500, Route d’ Agadir, Marrakech, 40005, MA
