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Modelling the D.C. Electrical Conductivity of Mortar

Published online by Cambridge University Press:  21 February 2011

E.J. Garboczi
Affiliation:
National Institute of Standards and Technology, Building Materials Division, 226/B350, Gaithersburg, MD 20899
L.M. Schwartz
Affiliation:
Schlumberger-Doll Research, Old Quarry Road, Ridgefield CT 06877-4108
D.P. Bentz
Affiliation:
National Institute of Standards and Technology, Building Materials Division, 226/B350, Gaithersburg, MD 20899
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Abstract

The interfacial zone separating cement paste and aggregate in mortar and concrete is believed to influence many of the properties of these composites. This paper presents a theoretical framework for quantitatively understanding the influence of the interfacial zone on the overall electrical conductivity of mortar, based on realistic random aggregate geometries. These same ideas may also be used to approximately predict the fluid permeability of mortar.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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