Figure 7.12.8

(a) Selected region of a Rietveld plot using Cu Kα1 radiation for a hydrated Portland cement after 13 d. RQPA results, both direct and those obtained from the external-standard G-method, are shown as an inset table. (b) The thermal-analysis curves (thermogravimetric and differential thermal analysis) for this paste with the weight loss owing to portlandite, CH, highlighted.