Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-29T06:12:18.554Z Has data issue: false hasContentIssue false
  • English
  • Français

Bulk Composition of the Glassy Phase in Some Commercial PFA's

Published online by Cambridge University Press:  21 February 2011

J. C. Qian  and
F. P. Glasser
J. C. Qian
Affiliation:
Department of Chemistry, University of Aberdeen, Aberdeen AB9 2UE, Scotland
F. P. Glasser
Affiliation:
Department of Chemistry, University of Aberdeen, Aberdeen AB9 2UE, Scotland
Get access

Abstract

The bulk chemistries of five Class F and one Class C pulverized fuel ash (PFA) are compared with the chemical compositions of the glass phase therein, the latter having been determined by analytical electron microscopy. Relative to the bulk, the glasses of Class F ashes concentrate Al2O3 and alkalis but reject Fe2O3. The glass phase is notably inhomogeneous on a micrometer scale; for example, large local variations occur in its Al2O3/SiO2 ratios. The Class C ash contained amorphous material with lower average Al2O3 contents than in Class F, but the extent of compositional homogeneities were greater.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 113: Symposium Q – Fly Ash and Coal Conversion By-Products IV , 1987 , 39
Copyright
Copyright © Materials Research Society 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Helmuth, Richard, Fly Ash in Cement and Concrete, (Portland Cement Association, U.S.A.) (1987).Google Scholar
2. Fly Ash and Coal Conversion By-Products: Characterization. Utilization and Disposal III, edited by McCarthy, G.J., Glasser, F.P., Roy, D.M. and Diamond, S., Mat. Res. Soc. Symp. Proc. Vol. 86 (Materials Research Society, Pittsburgh, 1987).Google Scholar
3. Fly Ash and Coal Conversion By-Products: Characterization. Utilization and Disposal II, edited by McCarthy, G.J., Glasser, F.P. and Roy, D.M., Mat. Res. Soc. Symp. Proc. Vol. 65 (Materials Research Society, Pittsburgh, 1986).Google Scholar
4. Watt, J.D. and Thorne, D.J., J. Appl. Chem. 15 585–594 (1965).Google Scholar
5. Gutteridge, W.A., in Chemical and Chemical Related Properties of Cement, edited by Glasser, F.P., British Ceramic Proc. Vol. 35, 11–23 (1984).Google Scholar
6. Hullet, L.D. and Weinbergh, A.J., Environ. Sci. Tech. 14, 965–970 (1980).Google Scholar
7. Uchikawa, H., Uchida, S. and Hinenara, S., in Proc. 8th Intl. Conf. on the Chemistry of Cements, Vol. III, 245–250 (Rio de Janeiro 1986).Google Scholar
8. Schairer, J.F. and Yagi, K., Am. Jour. Sci. (Bowen Volume) 471–512 (1952).Google Scholar
9. Qian, J.C., Lachowski, E.E. and Glasser, F.P., this volume.Google Scholar