1.
The rainwater can quickly filter into ground, so the groundwater resources can renew in time.
2.
As the pavement is air permeable and water permeable, the soil underneath can be kept wet. It improves the environment of road surface.
3.
The pervious concrete pavement can absorb the noise of vehicles, which creates quiet and comfortable environment. In rainy days, the pervious concrete pavement has no plash on the surface and does not glisten at night. This improves the comfort and safety of drivers.
4.
The pervious concrete pavement materials have holes that can cumulate heat. Such pavement can adjust the temperature and humidity of the Earth's surface and eliminates the phenomenon of hot island in cities.
The research on pervious pavement materials has begun in developed countries such as the US and Japan since 1980s. However, the strength of the material is relatively low because of its porosity. The compressive strength of the material can only reach about 20–30 MPa. Such materials cannot be used as pavement due to low strength. The pervious concrete can only be applied to squares, footpaths, parking lots, and paths in parks [1], [2] and [3]. Using selected aggregates, fine mineral admixtures, and organic intensifiers and by adjusting the concrete mix proportion, strength, and abrasion resistance can improve the pervious concrete greatly.