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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
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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

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