1. Permeable concrete: On-site, stones and cement are used, and permeable concrete adhesive is added. After thorough mixing, it can be used. The construction is simple and fast.

2. A thicker permeable layer can have better drainage performance, good integrity and a longer service life.

Grassroots treatment:
A. When constructing the concrete foundation ground, the surface must be cleaned thoroughly to ensure its strength is above C20, and expansion joints should be cut. Before laying the permeable concrete, the base surface should be moistened.

B. When carrying out construction on the soil foundation ground, compaction treatment is required. According to actual requirements, three-component soil can be laid and then compacted to prevent the base layer from collapsing.

Paving:
A. On-site layout and formwork support are carried out according to the design.

B. Thoroughly mix the raw materials such as stones, cement, SR-67101D permeable concrete adhesive type/SR-67102D permeable concrete adhesive Type II, and water on site.

C. Conduct the spreading, leveling, trimming and compaction of permeable concrete materials;

D. After 48 hours of curing, cut the expansion joints.

Topcoat:
Spray the special topcoat material of SPR-62204P PU colored topcoat (double-acrylic polyurethane)/SPR-68105P water-based permeable topcoat /SPR-62109P water-based polyurethane topcoat as required.