Osmotic glue

1. Since most of the urban roads are paved with cement or asphalt concrete, the road surface is dense and impermeable, and it is easy to produce water in rainy days, which exacerbates the urban heat island effect. .

2. New permeable pavement pavement structure-porous polyurethane gravel permeable pavement. It is made of polyurethane resin mixed with crushed stone. It has porosity and good water permeability, which can achieve normal soil respiration and reduce ecological impact.