As mentioned, permeable pavements eliminate impervious areas in a watershed, without sacrificing road and parking space. The permeable pavement itself is only the top layer of a larger permeable ...

An curved arrow pointing right. Tarmac has created Topmix Permeable, a porous concrete that allows rain water to flow though it. Up to 880 gallons of water can trickle through Topmix, which could ...

An curved arrow pointing right. "Topmix Permeable" is made by UK company Tarmac, based in the West Midlands. Its thirsty concrete can absorb 880 gallons of water per minute and could be used for ...