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Evaluation of Fly Ash on the Basis of Mass Equivalent, Maturity Equivalent and Permeance

Published online by Cambridge University Press:  25 February 2011

R. H. Mills*
Affiliation:
Department of Civil Engineering, University of Toronto, 35 St. George St., Toronto, Ontario, Canada M5S 1A4
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Abstract

Combinations of two types of commercially available Fly Ash (FA) and Portland cement (PC) were tested for compressive strength and permeance to gas flow. The cementitious components were combined in the concrete mixture in proportions PC/FA = 100/0, 75/25, 60/40 and 45/55 for a range of water/cement ratio, and equal workability. Strength and maturity efficiency factors were satisfactory for 75/25 and 60/40 blends. Gas tightness was improved at all levels of Fly Ash substitution.

Type
Articles
Copyright
Copyright © Materials Research Society 1986

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References

1. Mills, R.H., in Symposium on Blended Cements, STP 987 (American Society for Testing and Materials, Philadelphia, PA), p 89.Google Scholar
2. Markovic, J.R., M.A.Sc. Thesis, University of Toronto, January 1985, p. 29.Google Scholar
3. Mills, R.H., The Permeability of Concrete for Reactor Vessels, INFO 0111, Atomic Energy Control Board, Ottawa, 1983, p. 20.Google Scholar