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X-ray Diffraction Examination of the Phases in Expansive Cements

Published online by Cambridge University Press:  06 March 2019

Katharine Mather
Katharine Mather*
Affiliation:
U.S. Army Engineer Waterways Experiment Station Vicksburg, Mississippi 39180
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Abstract

Beginning in December 1968, Type K expansive cements of both the shrinkage-compensating and self-stressing types, particularly ChemStress (a self-stressing cement) have been tested, and examined by X-ray diffraction in the Concrete Laboratory of the U. S. Army Engineer Waterways Experiment Station. They are interesting subjects for the study of mixtures by X-ray diffraction because they may contain as many as 14 identifiable phases, including most of the phases in portland cement. Their examination by X-ray diffraction is greatly assisted by chemical treatments, first with maleic acid in methanol, followed by treatment with ammonium chloride solution to remove the calcium sulfates and leave a residue that consists of tetracalcium trialuminate sulfate, quartz, corundum, and a few very minor substances which have proved to be unidentifiable.

Type
X-Ray Powder Diffraction
Information
Advances in X-Ray Analysis , Volume 20: Twenty-Fifth Annual Conference on Applications of X-ray Analysis, August 4-6, 1976 , 1976 , pp. 41 - 52
Copyright
Copyright © International Centre for Diffraction Data 1976

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References

1. Report by ACI Committee 223; “Expansive Cement Concretes— Present State of Knowledge“; Journal of the American Concrete Institute, Proceedings, August 1970, Vol. 67, No. 8, Pages 583–610; American Concrete Institute, Detroit, Michigan.Google Scholar
2. Hoff, G. C.; “Investigation of Expanding Grout and Concrete; Summary of Field Mixture Test Results, July 1969 Through June 1970“; Miscellaneous Paper C-71-5, Report 1, June 1971; U. S. Army Engineer Waterways Experiment Station, CE, Vicksburg, Mississippi.Google Scholar
3. Hoff, G. C.; “Investigation of Expanding Grout and Concrete; Summary of Field Mixture Test Results, July 1970 Through June 1971“; Miscellaneous Paper C-71-5, Report 2, January 1973; U. S. Army Engineer Waterways Experiment Station, CE, Vicksburg, Mississippi. Google Scholar
4. U. S. Army Engineer Waterways Experiment Station, CE; “Handbook for Concrete and Cement“; August 1949 (with quarterly supplements); Vicksburg, Mississippi. Google Scholar
5. Mehta, P. K.; “Chemistry and Microstructure of Expansive Cements“; Conference on Expansive Cement Concrete, University of California, Berkeley, California, June 1972.Google Scholar
6. Mather, B., Mehta, P. K., and Committee; Discussion of the report by ACI Committee 223, “Expansive Cement Concretes--Present State of Knowledge“; Journal of the American Concrete Institute, Proceedings, April 1971, Vol. 68, Ho. 4, Pages 293–296; American Concrete Institute, Detroit, Michigan. Google Scholar
7. Ross, A. D.; “Shape, Size, and Shrinkage“; Concrete and Constructional Engineering, August 1944, Vol. 39, Mo. 8, Pages 193–199; London, England. Google Scholar
8. Smith, M. A. and Gutt, W.; “Studies of the Mechanism of the Combined Cement/Sulphuric Acid Process“; Cement Technology, November- December 1971, Pages 167–177.Google Scholar
9. Joint Committee on Powder Diffraction Standards; Powder Diffraction File, 1973; JCPDS, Swarthmore, Pennsylvania.Google Scholar
10. Gutt, W. and Smith, M. A.; “A New Calcium Silicosulphate“; Nature, Vol. 210, No.5034, 23 April 1966, Pages 408–409.Google Scholar
11. Nakamura, T., Sudoh, G., and Akaiwa, S.; “Mineralogical Composition of Expansive Cement Clinker Rich in SiO2, and its Expansibility“; Supplement Paper IV-74, December 1969, vol. IV, Pages 351–365; Proceedings, Fifth International Symposium on the Chemistry of Cement, Tokyo, 1968.Google Scholar
12. Mander, J. E., Adams, L. D., and Larkin, E. E.; “A Method for the Determination of Some Minor Compounds in Portland Cement and Clinker by X-Ray Diffraction“; Cement and Concrete Research, 1974, Vol. 4, Pages 533–544.Google Scholar