- Published: Wednesday, 27 April 2011 21:02
- Written by Cement Americas News
by Clyde W. Moore
The design and construction of portland cement plants includes provisions for the required raw materials. The number of raw material streams will be determined by an oxide analysis of the local materials and the need for added supplements. The simplest combination available will probably be a limestone, and a clay or shale, from a local quarry. But would that combination need to be supplemented by sand or a high silica waste product from another process to increase the silica content; or iron ore to adjust the C3A content in the finished cement; or a higher alumina-bearing material?