Sand is not just sand - and it is a finite raw material:

Knopp would like to thank our partner A.W. Gallhöfer GmbH from Hürth for the invitation to the sand training course! The focus was on the following topics:

🔵 Sand deposits from a geological perspective

🔵 Challenges due to the increasing scarcity of sand

🔵 Influence of sand properties on the quality of screeds

🔵 Measures for quality assurance

Many thanks to the team from A.W. Gallhöfer GmbH for the great cooperation! Interested in a training course? Let us know!