Chip seal technology is a thin layer construction technology used to establish road surface functions. The basic method is to first spread an appropriate amount of asphalt binder evenly on the road surface through special equipment, and then spread the relatively uniform particle size of crushed stones densely on the asphalt layer, and after rolling, an average of about 3/5 of the crushed stone particles are embedded in the asphalt layer.
Chip seal technology has excellent anti-skid performance and effective water sealing effect, low cost, simple construction process, fast construction speed, etc., so this technology is widely used in Europe and the United States.

Chip seal technology is suitable for:
1. Road maintenance overlay
2. New road wear layer
3. New medium and light traffic road surface
4. Stress absorption bonding layer
Technical advantages of chip seal:
1. Good water sealing effect
2. Strong deformation ability
3. Excellent anti-skid performance
4. Low cost
5. Fast construction speed
Types of binders used for chip seal:
1. Diluted asphalt
2. Emulsified asphalt/modified emulsified asphalt
3. Modified asphalt
4. Rubber powder asphalt