Hard coal fly ash, EFA-Füller®
EFA-Füller® according to DIN EN 450-1 are certified hard coal fly ashes which are used as concrete additions in the concrete industry according to DIN 1045-2 / DIN EN 206-1. They are fine spherical pozzolans which are the ideal building material to optimize the properties of fresh and hardened concrete for all types of application. EFA-Füller® are labelled on delivery notes, bags and silo signs with the European CE label and German Ü-label. To attain and retain these conformity certificates, the power plants and BauMineral jointly operate a Quality Management System in line with DIN EN 450-2. To fulfil these requirements, our internal construction material laboratory plays a central role in quality assurance.