I. Material and Classification

1. Granite curbing stone

• Common Stones:Flower Marble, Sesame Grey, Sesame Black, etc., granite materials with high hardness (over MU60) and wear-resistant, anti-weathering properties, suitable for high-traffic municipal roads.
• Advantages: Hard stone, wear-resistant, acid and alkali-resistant, long service life, and aesthetically pleasing appearance, enhancing the overall texture of the road.

1. Concrete curbstone

• New Composite Model: Double-layered structure with the upper layer made of C30 concrete for strength and the lower layer of porous concrete for water permeability, featuring a drainage channel with through-holes on the back.
• Advantages: Cost-competitive with traditional concrete curbs, but with superior water-permeability, suitable for sponge city projects and other drainage scenarios.