Abstract
In this chapter, X-Ray powder diffraction (XRPD) combined with the Rietveld method is discussed to quantify both full crystalline and amorphous/crystalline nonquantified phases in anhydrous cements. For the latter, different approaches, such as internal and external standard methods, are addressed. In particular, the use of powder diffraction is shown in the characterization of Portland clinkers, Portland cements with supplementary cementitious materials, anhydrous cements for alkalineactivation, and ye’elimite-containing cements. In addition, the structural details of phases that are usually present in Portland clinkers are shown. Finally, the use of diffraction in the characterization of anhydrous cementitious materials under nonambient conditions, viz. high temperature and high pressure, is also reviewed.
