Mortar Characterization using Electrical Resistivity Method

다국어 초록 (Multilingual Abstract)

Cement based mortars are widely used to improve the soft ground of a dam site, highway construction, and
karst voids. The mechanical properties of the mortar are well documented in literature, however very limited work is
done on their physical properties such as electrical resistivity which is considered as one of the most important physical
property known while improving the soft grounds. In this paper, electrical resistivity of the Portland cement mortars is
examined by employing the Wenner technique. Cylindrical specimens with various water/cement ratios (w/c) ranges from
0.35, 0.45, 0.50 and 0.65 were cast and tested. The test results showed that the electrical resistivity of the mortar increases
with increasing curing time and decreases with increasing water content and w/c. A reasonable, good relation was found
between electrical resistivity and compressive strength of mortar.

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