Hostname: page-component-7479d7b7d-8zxtt Total loading time: 0 Render date: 2024-07-08T15:32:35.323Z Has data issue: false hasContentIssue false
  • English
  • Français

Microsilica Concrete: A Technological Breakthrough Commercialized

Published online by Cambridge University Press:  22 February 2011

Farrokh F. Radjy  and
Kjell E. Loeland
Farrokh F. Radjy
Affiliation:
Elkem Chemicals, Inc., Parkwest Office Center, Pittsburgh, PA 15275
Kjell E. Loeland
Affiliation:
Elkem a/s, Chemicals, P.O. Box 40, N-4620 Vagsbygd, Norway
Get access

Abstract

With the advent of microsilica concrete, a new generation of high to ultra high strength and high durability concretes have become commercially feasible and are now being specified and used internationally. Microsilica concrete is produced by incorporating microsilica (beneficiated condensed silica fume) additives in conventional concrete mixes, using conventional materials and equipment. Flowing microsilica concretes with strengths as high as 17000 psi have become field realizable, also benefiting by durability improvements expressible by factors, not percents.

Properties of microsilica concrete are reviewed, and property improvements qualitatively linked to a much refined micropore structure of the binder phase.

Some recent and rapidly developing field and laboratory experience both in the U.S. and overseas are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 42: Symposium L – Very High Strength Cement-Based Materials , 1984 , 305
Copyright
Copyright © Materials Research Society 1985

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. Sellevold, E.J., Bager, D.H. and Klitgaard, Jensen K., Report No. 82.610, Division of Building Materials, The Norwegian Institute of Technology, Trondheim, Norway (1982).Google Scholar
2. Sellevold, E.J. and Radjy, F.F., in Proceedings of the International Symposium on Silica Fume, Slag and Other Mineral By-Products in Concrete, 1983, edited by Malhotra, V.M., ACI SP-79 (ACI 1983).Google Scholar
3. Gjorv, O.E., Mehta, P.K. and Monteiro, P., “Microstructure and Properties of the Cement Pastes Steel Interface,” presented at American Ceramic Society 86th Annual Meeting, April 29-May 3, 1984, Pittsburgh, PA, U.S.A. Google Scholar
4. Hjorth, L., Publication No. 1 Nordic Concrete Federation, Nordic Concrete Research (1982).Google Scholar
5. Powers, T.C., Journal of the American Society, 41, pp. 1–6 (1958).Google Scholar
6. Gjorv, O.E. as in Ref. 2.Google Scholar
7. Hustad, T. and Loeland, K.E., Report No. STF 65 A 31031, Cement and Concrete Research Institute, The Norwegian Institute of Technology, Trondheim, Norway (1981).Google Scholar
8. Christensen, D.W., Sorensen, E.V. and Radjy, F.F., in Proceedings of the First International Bridge Conference, June 4–6, 1984, Engineers' Society of Western Pennsylvania, Pittsburgh, PA, U.S.A. (1984).Google Scholar
9. Fisher, K.P., Bryhn, O. and Aagaard, P., Corrosion-NACE, 40, No. 7 (1984).Google Scholar
10. Vennesland, O., Report STF 65 A 81031, Cement and Concrete Research Institute, The Norwegian Institute of Technology, Trondheim, Norway, (1981).Google Scholar
11. Vennesland, O. and Gjorv, O.E. as in Ref. 2.Google Scholar
12. Popovic, K., Ukraincik, V. and Djurekovic, A., Durability of Building Materials, 2, P. 171 (1984).Google Scholar
13. Elkem a/s Chemicals, First Seminar: Elkem Microsilica Technology, Caesar Park Hotel, Sao Paulo, Brazil, September 20–21 (1984).Google Scholar
14. Holland, T.C., Repair and Rehabilitation, Concrete Structures, U.S. Army Corps of Engineers, Waterways Experiment Station (1983).Google Scholar