E01C2201/167

Permeable Paving System
20250223764 · 2025-07-10 ·

A method for forming a permeable pavement system includes installing a plurality of preformed paving blocks to form a paving surface. Each of the preformed paving blocks includes an upper surface, a lower surface generally parallel to and spaced apart from the upper surface, and a pair of parallel ducts extending horizontally through the block between the upper surface and the lower surface. After forming the paving surface, the method further includes inserting a transmission device through at least one of the parallel ducts of each paving block of the plurality of preformed paving blocks. Finally, the method includes using a controlling device to control the transmission device such that the temperature of the plurality of preformed paving blocks is automatically maintained at a predetermined range, wherein the controlling device selectively adjusts one of electrical current through the transmission device or circulation of a fluid through the transmission device.

High-friction road patch
12435476 · 2025-10-07 · ·

A high-friction road patch may comprise an aggregate capable of providing sufficient friction between a road surface and vehicle wheel. In some embodiments, the patch may comprise a waterproof, asphalt overlay with a first layer of cured bitumen and calcined bauxite aggregate particles, a second layer of viscous bitumen and a reinforcement component, and a binder layer for bonding the overlay with the road surface. The resulting product may provide a sufficient skid resistance value in an overlay that is far less susceptible to or incapable of debonding as with prior art solutions.