The influence of sample preparation on the mineralogical quantification
For this study, we used the generic Rietveld quantification file for clinker for the determination of relative changes and additionally the internal standard method for a detailed look at the amorphous content and the real changes in the material. The results of both techniques were compared.
It is well known, that the sample preparation has a strong influence on the results of mineralogical quantification using X-ray diffraction (XRD). Especially weak minerals can be easily destroyed during grinding and a quantification is then impossible. However, also hard materials like clinker can undergo significant changes in phase content during sample preparation with widely used industrial mill / press machines.