Compared with the traditional road maintenance and reconstruction methods, it has many incomparable advantages.
1. Low cost
According to the introduction of foreign building materials, compared with the method of adding new materials to the old pavement, in-situ cold regeneration can reduce the cost by about 20% - 46%.
2. Improve the level of old roads
By improving the base bearing capacity, the road grade can be fundamentally improved, which is of special significance for low-grade roads.
3. Structural integrity
In the uniform thick pavement produced by cold recycling construction, there is no weak interface between the thinner pavement which sometimes appears in the traditional construction method.
4. Do not damage the subgrade
Since the cold regeneration construction is a one-time operation, the regeneration unit passes only once on the exposed subgrade.
5. Save materials
All the 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 to dismantle large materials and special crushing. More importantly, the one-time operation characteristics of the construction process greatly simplify the construction procedure. So as to save construction time.
7. Environmental protection
Because the use of old materials greatly reduces the mining volume of new materials, there is no problem of transportation and stacking of old materials.