Synthesis and Crystal Structure Solution of Potassium Dawsonite: An Intermediate Compound in the Alkaline Hydrolysis of Calcium Aluminate Cements

The main special properties of calcium aluminate cements (CACs) are their rapid strength development, good resistance to sulphates and, when used with refractory aggregates, their effectiveness for making refractory concrete. Potassium dawsonite is formed as an intermediate compound during the alkaline hydrolysis (AH) in CACs. This article reports on a synthesis method of potassium dawsonite that has been developed. In this method, the crystal structure of potassium dawsonite has been solved by direct methods from X-ray powder diffraction data and refined with the Rietveld method. The authors also discuss the probable chemical reactions controlling the AH process in the presence of potassium.

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  • Authors:
    • Fernandez-Carrasco, L
    • Puertas, F
    • Blanco-Varela, M T
    • Vazquez, T
    • Rius, J
  • Publication Date: 2005-4

Language

  • English

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  • Accession Number: 01000507
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 1 2005 11:57AM