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Modelling the D.C. Electrical Conductivity of Mortar.

pdf icon Modelling the D.C. Electrical Conductivity of Mortar. (462 K)
Garboczi, E. J.; Schwartz, L. M.; Bentz, D. P.

Materials Research Society. Microstructure of Cement-Based Systems/Bonding and Interfaces in Cementitious Materials. Materials Research Society Symposium Proceedings Volume 370. November 28-December 1, 1994, Boston, MA., Materials Research Society, Pittsburgh, PA, Diamond, S.; Mindess, S.; Glasser, F. P.; Roberts, L. W., Editor(s)(s), 429-436 pp, 1995.


building technology; mortar; electrical resistivity


The interfacial zone separating cement paste and aggregate in ortar 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.