Figure 7.12.9

Selected region of a Rietveld plot using Cu Kα1 radiation for an alkali-activated fly ash mixed with Al2O3 as an internal standard (weighed: 29.96 wt%) after 180 d of hydration. The RQPA results are given in the inset, with the first column being the direct analysis (normalized to 100% of crystalline phases including the standard) and the second column showing the analysis including the amorphous content and without the internal standard.