The fully automatic asphalt extractor is a device used for rapid determination of asphalt content (oil stone ratio) in asphalt mixtures, widely used in highway pavement construction enterprises, testing units, scientific research departments, and colleges and universities. Here is its detailed description:

Working principle

The fully automatic asphalt extractor adopts centrifugal separation method to separate asphalt, mineral powder and aggregate in asphalt mixture by high-speed centrifugal force. The specific process is as follows:

1. Place the asphalt mixture sample into a centrifugal separator and soak it in a solvent (such as trichloroethylene).
2. Start the centrifugal separator and use centrifugal force to separate asphalt from the mixture.
3. The separated asphalt and solvent are filtered through filter paper, and the mineral powder and aggregate are collected.
4. Through the recycling system, the solvent is recovered and reused, while the mineral powder and aggregate are dried.
5. Finally, calculate the asphalt content by weighing.