Sand sealing layer construction is a thin layer preventive maintenance process that uses emulsified asphalt combined with composite modified materials such as rubber, resin, asphalt reducing agent, and penetrant as bonding materials, and high-quality wear-resistant and anti-skid diamond sand as aggregates, and is constructed through precise measurement of specialized synchronous sealing equipment.

1、 Scope of application for sand seal construction:

1. It is applied to the preventive maintenance of asphalt pavement of expressway and Class I and second-class highway.

2. Change the appearance color of the new and old road surfaces.

3. Beautify the road edges and shoulders, and restore the appearance color of the new and old road surfaces in the median strip.

2、 Characteristics of Sand Seal Construction Technology:

1. Solve the problem of poor oil condition caused by asphalt aging on the surface of asphalt pavement.

2. Resolve the occurrence of rough surfaces, loose particles, and other issues on the road surface.

3. Prevent water seepage on the road surface.

4. Increase the friction coefficient of the road surface.

5. Construction at room temperature, energy-saving and environmentally friendly.