Green Pavements and hard drainage pavements are particular types of pavements made out of a porous concrete surface, open pore pavers or asphalt, with an underlying stone reservoir or water channels touching the soil. Those solutions allow water to filter on the inside and be absorbed by the ground -or drained via a drain tile- instead of running over.
Types of green pavements. Source: www.pavershare.org
Some types of green pavement may be:
- Traditional Concrete/Asphalt: the standard mix minus the fine particles which are left out to make it more porous,
- Plastic Pavers: the plastic grids have a honeycomb shape that allows vegetation, such as grass, to grow through the holes,
- Concrete Pavers: there are spaces between the concrete blocks which aid better drainage and water permeability,
- Permeable interlocking concrete pavers: concrete blocks leaving constant space to greenery.
The main benefits of the green pavements for parkings are related to the reduction of the overall quantity of net discards, conservation both material and energy for paving, provision of an easy way to make a substantial reduction in the overall volume of grey surface. While the hard drainage pavements have benefits such as the reduction of storm water runoff and therefore floodings, the mitigation of heat island effect, or cooling temperatures; besides that green pavement provides a better traction.
Its main application in cities is for cities, smaller municipalitiesand highways (parking lots, sidewalks, low-traffic areas and driveways). They both minimize expenses and improve aesthetic.
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