XRD, EDX and IR analysis of solid solutions between thaumasite and ettringite

被引：151

作者：

Barnett, SJ

Macphee, DE

Lachowski, EE

Crammond, NJ

机构：

[1] Univ Aberdeen, Dept Chem, Aberdeen AB24 3UE, Scotland

[2] Bldg Res Estab Ltd, Watford WD2 7JR, England

来源：

CEMENT AND CONCRETE RESEARCH | 2002年 / 32卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

X-ray diffraction; EDX; infrared spectroscopy; thaumasite; ettringite;

D O I：

10.1016/S0008-8846(01)00750-5

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Solid solutions between thaumasite and ettringite were prepared by methods analogous to those well established for the preparation of thaumasite and ettringite. The extent of immiscibility in this system is investigated by varying the Al:Si and SO42- :CO32- ratios in reactant mixtures. The solids produced were analysed by quantitative X-ray diffraction, with Rietveld refinement also providing accurate unit cell dimensions, energy-dispersive X-ray analysis and infrared spectroscopy. The compositional and unit cell variations in the solid solution are discussed. A wide variety of solid solution compositions were produced with both the thaumasite and ettringite structures, but all preparations were considerably diluted by secondary amorphous products. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：719 / 730

页数：12

共 29 条

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[2]

[Anonymous], SILICATES IND

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