Permeable concrete is a paving material developed and used in Europe, America, Japan and other countries for the defects of the original urban road pavement. This paving material can make rainwater flow into the ground, effectively replenish groundwater, and alleviate some urban environmental problems such as the sharp drop of urban groundwater level.
Permeable concrete can effectively eliminate the harm of ground oil compounds to environmental pollution, protect groundwater, maintain ecological balance and alleviate urban heat island effect. It is beneficial to the benign development of human living environment, urban rainwater management and water pollution prevention, and has special significance.
Performance characteristics of permeable concrete
1, high water permeability: the porous terrace has a porosity of 15%-25%, which can make the water permeability reach 3 1-52 L/m/h, which is much higher than the discharge rate of the most effective rainfall under the optimal drainage configuration.
2. High bearing capacity: After identification, the bearing capacity of permeable concrete can reach the bearing standard of C20-C30 concrete, which is higher than that of ordinary permeable brick.
3. Good decoration: Permeable concrete has a color optimization scheme, which can cooperate with the designer's unique creativity and realize the decoration style required by different environments and personalities. This is difficult for ordinary permeable bricks to do.
4. Maintainability: The problem of pore blockage that people are worried about is unnecessary. The unique permeable pavement system can be easily solved by high-pressure water flushing.