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Determination of amorphous phase levels in Portland cement clinker

Published online by Cambridge University Press:  05 March 2012

Phe Man Suherman
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, 6845 Western Australia
Arie van Riessen*
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, 6845 Western Australia
Brian O’Connor
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, 6845 Western Australia
Deyu Li
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, 6845 Western Australia
Dick Bolton
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, 6845 Western Australia
Hans Fairhurst
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, 6845 Western Australia
*
b)Author to whom correspondence should be addressed. Electronic mail: a.vanriessen@curtin.edu.au

Abstract

The existence of glass or amorphous component in Portland cement clinker has been questioned for a long time. However, besides the crystalline phases, there are reports in the literature of noncrystalline material in cement clinker, which is considered to be the residue of the melt that has failed to crystallize. Absolute phase abundances were determined in this study by Rietveld refinements with laboratory X-ray data, using both internal and external phase composition standards. The results clearly demonstrate the existence of an amorphous component in Portland cement clinker. The presence of an amorphous component was also apparent from diffraction data for clinker from which the silicate phases had been chemically removed, using both laboratory X-ray and synchrotron radiation patterns.

Type
Technical Articles
Copyright
Copyright © Cambridge University Press 2002

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