Hebi City's integrated approach to sponge city large-pored permeable concrete road construction concept

Porous concrete flooring is a lightweight concrete composition with voids on its surface, free of fine aggregates, formed by a layer of binder coating the coarse aggregates, creating a honeycomb structure with uniformly distributed holes. Thus, it features permeability to water and air, as well as light weight.

Non-silica concrete reinforcing agent is a new type of green and environmentally friendly material that participates in the cement hydration reaction to form a high molecular polymer cement hydration body, increasing the coating thickness on the aggregate surface, significantly enhancing the compressive and bonding strength of the cement hydration body. It also greatly improves the concrete's frost-thaw resistance, durability, and weather resistance. The range of inorganic color powders is comprehensive, with wide applications, vibrant colors, strong coloring power, high hiding rate, good dispersion, and excellent weather resistance properties.

After the permeable concrete surface treatment reacts, it will form a tough, transparent, high-gloss film, significantly enhancing the pavement's wear resistance and improving the surface gloss, texture, and color vibrancy of the permeable concrete.

Pervious concrete construction primarily includes: laying, forming, surface treatment, and joint treatment.
1) Laying out: Can be done by mechanical or manual methods.
2) Molding: Construction can be carried out using flat vibrators, vibration leveling rollers, manual push-pull rollers, and vibration leveling beams.
3) Surface Treatment: Primarily for enhancing the surface appearance, involves trimming or cleaning the finished permeable concrete surface.
4) The setting of permeable concrete pavement joints is essentially the same as that of normal concrete, with contraction joints evenly spaced, the spacing not to exceed 6 meters.