PROCESS FOR PREPARING CEMENT AND EQUIPMENT FOR PERFORMING THE PROCESS

摘要

A cement and process of producing the cement is disclosed wherein the cement comprises at least two clinkers, one being a Portland cement clinker of conventional composition and at least one other clinker of low-calcium content or marl clinker. This marl clinker is heated between 450 DEG C and 1250 DEG C and contains hydratizable mineral phases of low-calcium content and 0-30% by weight related to the marl clinker of glass phases.