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Modeling of Fly Ash Concrete Mixtures

Published online by Cambridge University Press:  25 February 2011

Elizabeth L. White  and
Della M. Roy
Elizabeth L. White
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802 also affiliated with the Department of Civil Engineering
Della M. Roy
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802 also affiliated with the Department of Materials Science and Engineering
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Abstract

A Factor Analysis Model was applied to existing literature data on fly ash and cement properties to relate them to the strength and durability of the cured pozzolanic concrete products. A normal curve was fitted to each independent fly ash and cement property and to each dependent strength property. Functions of the moments, such as indicators of skewness and kurtosis of each property, were calculated and the significance of their departures from the expected values of a normal population was examined. About one-half of the properties were log-normally distributed; the remainder were normally distributed as given. A predictive model was proposed for compressive strength, using the percent sulfate as representative of Factor I, the cement quantity as representative of Factor II, and the percent Fe2O3 as representative of Factor III.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 65: Symposium T – Fly Ash and Coal Conversion By-Products II , 1985 , 243
Copyright
Copyright © Materials Research Society 1986

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References

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