Cold asphalt mixes include gravel, crushed sand, cement, water, decay controller and bitumen emulsion. Typically it is used for worn layers of asphalt and concrete coatings with a thickness of between 10 and 15 mm.
In this case, one may use special combines which have a dual function as a paver and as an asphalt plant. For paving cold cast asphalt, the following equipment is needed:
Tanks for the storage of finished mineral parts, emulsion, aqueous phase and cement;
- drive motor;
- mineral materials dispenser;
- speed controller;
- hydraulic mixer; and
- a control unit.
The main feature of this process can be regarded as a quick breakdown of cationic emulsions. It essentially means you can quickly form a layer and open the road to traffic within 20-60 minutes after completing the application. Cold cast asphalt mixtures can also be for repairing potholes and ruts.