1. Low cost
According to the introduction of foreign construction data, compared with the method of paving new materials on the old paving layer, in-situ cold regeneration can reduce the cost by about 20% ~ 46%.
2. Improve the grade of old roads
The road grade can be fundamentally improved through the improvement of base bearing capacity, which is of special significance to low-grade highways.
3. Structural integrity
There is no weak interface between thinner pavements that sometimes appears in traditional construction methods in the uniform thicker pavements produced by cold regeneration construction.
4. No damage to Subgrade
Since the cold regeneration construction is a one-time operation, the regeneration unit passes only once on the exposed subgrade. Therefore, compared with the traditional construction method, the damage to the subgrade is smaller.
5. Save materials
All old paving materials are used locally, which greatly reduces the consumption of new materials and protects resources.
6. Short construction period
Because there is no transportation problem of old materials, there is no need for other machinery to loosen and crush the old materials, and there is no need for the removal and special crushing of large materials. More importantly, the one-time operation characteristics of the construction process greatly simplify the construction procedure, thus saving the construction time.
7. Protect the environment
Because the utilization of old materials greatly reduces the mining volume of new materials, there is no problem of transportation and stacking of old materials. It fundamentally meets the requirements of environmental protection.