Aumund is developing an electrical clay calcination system in a joint development with Holcim at its test centre in Rheinberg, Germany (photo: demo-unit). Clay activation is achieved by a combination of electrical heating and materials circulation in an enclosed pan conveyor system, which is known from high temperature applications. The innovative thermal process minimises the energy requirement for the process and the heat loss. The new eLCC-technology (electrical linear clay calcination) allows for scale-up to industrial production facilities. In 2025, the construction of a first pilot-plant will be started.