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On the relationship between porosity and electrical resistivity in cementitious systems

✍ Scribed by P.J. Tumidajski; A.S. Schumacher; S. Perron; P. Gu; J.J. Beaudoin

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
324 KB
Volume
26
Category
Article
ISSN
0008-8846

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✦ Synopsis

The applicability of porosity-electrical resistivity relationships for hardened cementitious systems is addressed. The following equation hF=hp+m~lne=ln + m'lne relating the electrical resistivity formation factor (F) to the porosity (e), tortuosity (z) and constrictivity (a) was tested for Portland cement pastes hydrated up to 29 years and mortar hydrated for 28 days. Results for the well-hydrated pastes and, to a lesser degree, 28 day hydrated mortars followed the relationship.

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