Calcined clay

Using calcined clay as an SCM (Supplementary Cementitious Material) has gained a lot of attention in the cement industry recently as an efficient way to reduce CO2 emissions and produce a greener cement product. This presentation will review the basics of clay calcination and discuss some of the drivers that are being seen globally to encourage cement producers to pursue clay calcination. In addition, the importance of evaluating potential clay sources and performing lab testing before embarking on a full scale installation will be covered. FLSmidth’s proprietary technology for producing calcined clay in a calciner system will also be presented as well as how it compares to producing calcined clay in a rotary kiln.