Watch: Concrete Absorbs Gallons Of Water

This new concrete absorbs 880 gallons of water in a minute. It is an absorbent porous surface called “Topmix Permeable”. It’s producer, Lafarge Tarmac, hopes it will prevent flash flooding in urban areas and by eradicating puddles and floods it could makes roads, parking lots, bike and sidewalks safer. Rain water flows through a porous layer concrete to a drainage system of rocks and pebbles where it can re-enter the groundwater. The asphalt also acts as a reservoir during floods or heavy rainfall. Topmix was developed from similar permeable concrete, which has been available for over 50 years. It has finally been reformulated to withstand the weight of vehicles. It will also be cooler than traditional asphalt during hot weather. However, Topmix would be infeasible in cold weather locations. Freezing water would expand and damage the concrete.

Credit: DailyMail Online

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