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What is the significance and characteristics of permeable concrete pavement?
What is the significance and characteristics of permeable concrete pavement?
The significance of permeable concrete pavement
Permeable concrete can make rainwater quickly penetrate into the surface, effectively replenish groundwater, alleviate the urban heat island effect, and protect the city's natural water system from damage. It has strong environmental value. At the same time, it solves the problem of easy water accumulation on ordinary roads, improves walking safety and comfort, and is also of great significance for improving the living environment. Permeable concrete subverts its single gray color while retaining the characteristics of traditional concrete. Different colors can be used to integrate the ground with buildings and landscapes to create a warm and harmonious living environment!
Characteristics of permeable concrete pavement
① High permeability: Permeable floor has 15%-25% pores, which can make the water permeability rate reach 31-52 liters/meter/hour, which is much higher than the discharge rate of the most effective rainfall under the best drainage configuration.
② High bearing capacity: According to the appraisal of the national testing agency, the bearing capacity of the permeable floor can fully meet the bearing standard of C20-C25 concrete, which is higher than the bearing capacity of general permeable bricks.
③ Decorative effect: The permeable floor has a color optimization ratio scheme, which can cooperate with the designer's unique creativity to achieve the decorative style required by different environments and personalities. This is difficult to achieve with general permeable bricks.
④ Easy maintenance: The pore blockage problem that people are worried about is unnecessary. The unique permeable paving system makes it easy to solve it by high-pressure water washing.
⑤ Freeze-thaw resistance: Permeable pavement has stronger freeze-thaw resistance than general concrete pavement, and will not be affected by freeze-thaw and fracture, because its structure itself has larger pores.
⑥ Durability: The durability and wear resistance of the permeable floor is better than asphalt, close to ordinary floor, avoiding the shortcomings of general permeable bricks such as short service life and uneconomical.
⑦ High heat dissipation: The low density of the material itself (15-25% of the voids) reduces the ability to store heat. The unique pore structure allows the lower underground temperature to be transmitted to the ground, thereby reducing the temperature of the entire paved surface. These characteristics make the permeable paving system close to the ground covered with natural vegetation in terms of heat absorption and heat storage functions.
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