Concrete Topmix Permeable

Topmix permeable is concrete which is defined as 'thirsty concrete'. This concrete can channel water that falls to its surface to flow and disappear naturally. The benefit of using topmix permeable concrete is it can reduce flood problems in Indonesia. Topmix Permeable uses non-smooth concrete as opposed to traditional sand-based concrete commonly used. Permeable topmix is made from granite shards that are packed together, but do not glue or remain left slightly loose, with a high vacancy rate (20-35%)for water to pass through the concrete surface. 3 systems of topmix permeable: - Full Infiltration = this system will be used with the purpose of making water flow through the topmix and into its underground. Usually this system is used in wet areas that do not hold too much rainwater. - Partial Infiltration = this system has a barrier just below the topmix whose function is to be a drainage system to the nearest exhaust system. Usually this system is used in areas that have high rainfall. - Full attenuation = This system is quite similar to the partial system in fact this system stores water flowing to the specified place. Usually this system is used in areas that have dirty water and high recycling rates. The advantages of using Topmix Permeable concrete allow as much as 36,000 millimeters of water per hour to get to the ground, or the equivalent of 880 gallons of water absorbed for a minute. With this ability, the possibility of standing water on the streets is lower. So that the drivers can avoid aquaplaning accidents. The disadvantage of using permeable topmix concrete is that more maintenance is needed due to blockage due to mixing water with dirt under the concrete. In addition, the use of Topmix Permeable concrete cannot be applied to the path passed by large-loaded vehicles. Source: https://www.designingbuildings.co.uk/wiki/Topmix_Permeable Written by Alfredo W. & Vincent Tan #icescbinusarticle #binusuniversity #civilengineering #topmixpermeable #concrete