The valuable secondary raw material in the form of concrete dust is the result of the processing of fine components in regenerated concrete. Concrete dust is generated during the crushing and recycling of concrete, especially in recycling centers and on construction sites, where it subsequently accumulates as waste. These are very fine particles collected in the dust prevention filters of recycling lines when crushing reclaimed concrete. It is basically a cement and coated aggregate with a grain size ranging from 0.0005 - 0.1 mm. However, the angularity, the variable grain size and the large specific surface area of the dust are complications for further processing of the regenerated material. Application: Binder in cement mixtures Binder and filler in wall systems