Hochleistungszemente und moderne Herstellung von gewöhnlichem Portlandzement mittels Verfeinerung und Aktivierung durch HEM

High Energy Milling (HEM) applied for the grinding of cement leads to substantial refinement (< 2 μm) and mechanical activation of the powder particles. Preliminary studies have shown that this can result in a faster setting time, a faster curing time and in increased mechanical properties. Due to the far shorter grinding process at far higher energy efficiency and due to an expected significant saving in production space, an economically advanced manufacturing process of cement seems to be offered by HEM. The key question of whether HEM is available and can be scaled up for the large amount of material produced in the cement industry can be answered positively since the high kinetic semi-continuous processing route based on a carrier-gas in compression mode has been introduced. This paper presents the results of preliminary studies, explains the novel technique and suggests the way to commercial application.