Hostname: page-component-8448b6f56d-jr42d Total loading time: 0 Render date: 2024-04-24T23:29:27.543Z Has data issue: false hasContentIssue false
  • English
  • Français

Stratlingite and Hydrogarnet from Calcium Aluminosilicate Glass Cements

Published online by Cambridge University Press:  21 February 2011

John F. MacDowell
John F. MacDowell*
Affiliation:
Coming Incorporated, Sullivan Park, Coming, NY 14831
Get access

Abstract

Calcium aluminosilicate glass cements that hydrate directly to stratlingite (2CaO·Al2 O3 SiO2 · 8H2 O) and/or hydrogamet solid solution (3CaO·Al2 O3·XsiO2 ·[16–2X]H2O) are described.

Hydrogamet develops rapidly during curing of pastes containing between 12 and 16 wt.% SiO2, while stratlingite grows more slowly in bladed radial spherulites in compositions containing 18 to 25% SiO2

Compressive strengths between 35 and 70 MPa, 20–35% porosity, and excellent thermal and chemical stability are characteristic of the cured hydrogamet cements, while the stratlingite pastes have strengths between 70 and 140 MPa and 1–10% porosity.

A preferred composition area is described that yields mixtures of the two hydrated phases, resulting in a useful combination of low porosity and high early strength.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 179: Symposium Y – Specialty Cements with Advanced Properties , 1989 , 159
Copyright
Copyright © Materials Research Society 1991

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

1. Bied, J., (Soc. J. & A. Pavin de Lafarge) French Pats. Nos. 320290 and 391454 (1908).Google Scholar
2. Spackman, H. S., Proc. Amer. Soc. Test. Mater. 10, 315 (1910).Google Scholar
3. Bradbury, C., Callaway, P. M. and Double, D. D., “The Conversion of High Alumina Cement/Concrete,” Mat. Sci. and Eng., 23, 43–53 (1976).Google Scholar
4. Neville, A. M., “High Alumina Cement Concrete.” Construction Press, Ltd., Hornby, Lancaster, England, 201 pgs. (1975).Google Scholar
5. Flint, E. P., McMurdie, H. F., and Wells, L. S., “Hydrothermal and X-Ray Studies and the Relationship of the Series to Hydration Products of Portland Cement,” Jour. Res. Nat'l. Bur. Stand., 26, 13–33 (1941).Google Scholar
6. Foreman, D. W. Jr., ” Neutron and X-Ray Diffraction of Ca3 Al2 (D4 O4 )3, a Gametoid,” Jour. Chem. Phys. 48, 3037–3041 (1968).Google Scholar
7. Shoji, T., “Ca3 Al2 (SiO4)3-Ca3 Al2 (H4 O4)3 Series Garnet: Composition and Stability,” Jour. Mineral. Soc. Japan, 11, 359–372 (1974) (in Japanese).Google Scholar
8. Robson, T. D., “High Alumina Cements and Concretes,” Wiley, London, P. 36 (1962).Google Scholar
9. Glasser, F. P., “Application of the Phase Rule to Cement Chemistry,” Phase Diagrams - Materials Science and Technology - Volume 11, Chapt. V, pg. 158.Google Scholar
10. Lea, F. M., “The Chemistry of Cement and Concrete,” Third Edition, Chemical Pub. Co., N.Y., pgs.56, 506 (1971).Google Scholar
11. Keil, F. and Gille, F., “Hydraulic Properties of Basic Glasses with the Gehlenite and Ackermanite Composition,” Zement-Kalk-Gips, 2, [21], pgs. 229–232 (1949).Google Scholar
12. Strassen, H. Zur, “Die Chemischen Reaktionen bei der Zementerhartung,” Zement-Kalk-Gips, 11, 137–143 (1958).Google Scholar
13. Teoreanu, I. and Georgescu, M., “Chemical Studies and X-Ray Analysis of the Hydration of Vitreous Gehlenite in the Presence of Activators,” Bulletin of the Polytechnic Institute of Bucharest, 32, [16], pgs. 1–8 (1970).Google Scholar
14. Locher, F. W., “Hydraulic Properties and Hydration of Glasses in the System CaO-Al2O3-SiO2,” Fourth Int'l. Symp. on the Chemistry of Cements,” Washington, D.C. (1960).Google Scholar
15. Hentschel, G. and Kuzel, H., “Stratlingite, 2CaO·Al2 O3-SiO2-8H2 O, A New Mineral,” Neues Jahrb. Mineral. Monat. pp. 326–331 (1976).Google Scholar
16. Strätling, W., “Die Reaktion Zwischen Gebrauntein Kaolin und Kalk in Wässriger Lösung” - Dissertation, Braunschweig, Germany (1938).Google Scholar
17. MacDowell, J. F., “Hydrogamet-Gehlenite Hydrate Cements from CaO-Al2 O3-SiO2 Glasses,” 8th Int'l Congress on the Chemistry of Cements, Rio de Janeiro, Brazil (1986).Google Scholar
18. MacDowell, J. F. and Chowdhury, A., “Quick Setting High Early Strength Glass-Based Cements for Rapid Highway Repair,” to be presented at the Transporation Research Board Meeting, Jan. 7–12, 1990, Paper No. CB023.Google Scholar
19. Sun, K., “Aluminate Glasses”, Glass Ind., 30, 199,232 (1949).Google Scholar
20. Rawson, H., “Inorganic Glass-Forming Systems”, Academic Press, New York, p. 199,249 (1967).Google Scholar
21. Mason, B., “Larnite, Scawtite and Hydrogrossular from Tokatoka, New Zealand.” Am. Mineral., 42, 379–392 (1957).Google Scholar
22. Kuzel, H., ”Crystallographic Data and Thermal Decomposition of Synthetic Gehlenite Hydrate 2CaO Al2 O3. SiO2. 8H2 O” Neues Jahrb. Mineral. Monat., pp. 319–326 (1976).Google Scholar