This topic investigates the road reconstruction construction. The invention is suitable for the maintenance and renovation of severely damaged roads (such as large-area potholes) and the upgrading and reconstruction of old roads. After repair, a brand-new pavement with the same performance as the new road is formed.

In-situ cold recycling technology is generally suitable for the renovation of asphalt pavement of highway below the first grade with serious diseases, and the pavement after cold recycling generally needs to be covered with asphalt overlay with a certain thickness.

Plastic recycling method is suitable for repairing pavement with microcracks, worn layer damage and small damaged area. After repair, the slight rutting and cracking of the original pavement can be eliminated, the smoothness of the pavement can be restored, and the pavement performance can be improved.

The mixed regeneration method is suitable for the regeneration of 4 ~ 6 cm surface layer.