Asphalted concrete
Asphalt concrete is the compound of stone, sand, mineral powder and asphalt, mainly used to make the road surface structure soft.
Hot asphalt concrete is mainly produced at hot asphalt concrete mixer station.
In order to get the asphalt concrete, the flow of materials is shipped up and weighed by electronic scale system to ensure the accuracy and minimize the error.
After that, all the materials are moved into the mixing chamber, where things such as stones of big, medium an small – size, sand and additivies are dry - mixed together. About 20s later, asphalt is sprayed in foggy-form together with other materials, the mixing wings in the chamber continue to stir for about 25-30s and then released through the discharge door of the mixing chamber.
Hot asphalt concrete: the compound is heated and mixed in the temperature of 140oC – 160oC. The asphalt must be as hot as 90-100oC when it is used for construction. The products include:
- Fine particle hot asphalt concrete
- Medium particle hot asphalt concrete
- Rough particle hot asphalt concrete