Topmix Permeable is a fast draining concrete pavement solution that rapidly directs stormwater off streets, parking surfaces, driveways and walkways. This minimises the cost and long-term maintenance for local authorities and developers of stormwater management. The high-tech concrete works by having a permeable layer on top, which allows water to drain through a matrix of large pebbles and then down into a loose base of rubble beneath. The water is then fed into a drainage system that’s connected to groundwater reservoirs. Thus, the water that quickly disappears from the surface is fed right back into the city’s irrigation system.
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