How to construct the solidified floor

In the construction of cities, many cities use cement, asphalt, concrete and other closed surfaces to replace the original soil surfaces; for sidewalks, open-air parking lots, courtyards and squares and other public places, also like to use neat and beautiful stone slabs or cement colored bricks. Closed surface not only improves traffic and road conditions and beautifies the environment, but also has a significant adverse impact on urban ecology and climate environment.

The closed surface and high-rise buildings make the surface of the modern city gradually covered by water-blocking materials, and the water is difficult to seep, and the precipitation quickly becomes the surface runoff, entering the river or underground drainage pipes, forming an ecological "man-made desert".