结构精修
无水的
硅酸盐水泥
热重分析
胶凝的
材料科学
粉末衍射
X射线晶体学
衍射
水泥
矿物学
分析化学(期刊)
结晶学
晶体结构
化学
复合材料
光学
色谱法
物理
有机化学
作者
Karen Scrivener,T. Füllmann,E. Gallucci,Günther Walenta,Eva Bermejo
标识
DOI:10.1016/j.cemconres.2004.04.014
摘要
X-ray diffraction (XRD) is a powerful technique for the study of crystalline materials. The technique of Rietveld refinement now enables the amounts of different phases in anhydrous cementitious materials to be determined to a good degree of precision. This paper describes the extension of this technique to a pilot study of the hydration of a typical Portland cement. To validate this XRD–Rietveld analysis technique, its results were compared with independent measures of the same materials by the analysis of backscattered electron images (BSE/IA) and thermogravimetric analysis (TGA). In addition, the internal consistency of the measurements was studied by comparing the XRD estimates of the amounts of hydrates formed with the amounts expected to form from the XRD estimates of the amounts of anhydrous materials reacted.
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