Date recorded: May 15 2014

The production of blended cements with different additives is a significant contribution to the reduction of CO2 emissions in the cement industry. A variety of completely or partly amorphous materials are used as additives, like slag, fly ash, silica, pozzolana and others. Controlling these additives quantitatively is essential in order to guarantee the cement norms. Of special interest is the quantification of amorphous content. X-ray diffraction in combination with Rietveld analysis allows a quantification of complex materials like blended cements.