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Electrical resistivity of unsaturated concrete using different types of cement
Highlights We performed electrical resistivity tests. We analyzed twelve different concrete samples. The electrical resistivity increases over time for all samples. The w/b ratios did not interfere significantly in results. Cements with additions show biggest resistivity values.
Abstract This paper aims to contribute with durability studies by monitoring the unsaturated concrete resistivity over 2years. Four types of cements commercially used in Brazil were investigated. Some statistical tests (ANOVA and Turkey’s test) were performed to analyze the data. It was found that w/b ratios have no significant influence on the electrical resistivity values of the concrete for a same type of cement. However, the types of cement have a significant effect on resistivity. Cements with blast furnace slag and pozzolan additions have a higher resistivity. Trend lines to estimate the changes in resistivity over time were discovered.
Electrical resistivity of unsaturated concrete using different types of cement
Highlights We performed electrical resistivity tests. We analyzed twelve different concrete samples. The electrical resistivity increases over time for all samples. The w/b ratios did not interfere significantly in results. Cements with additions show biggest resistivity values.
Abstract This paper aims to contribute with durability studies by monitoring the unsaturated concrete resistivity over 2years. Four types of cements commercially used in Brazil were investigated. Some statistical tests (ANOVA and Turkey’s test) were performed to analyze the data. It was found that w/b ratios have no significant influence on the electrical resistivity values of the concrete for a same type of cement. However, the types of cement have a significant effect on resistivity. Cements with blast furnace slag and pozzolan additions have a higher resistivity. Trend lines to estimate the changes in resistivity over time were discovered.
Electrical resistivity of unsaturated concrete using different types of cement
Medeiros-Junior, Ronaldo A. (author) / Lima, Maryangela G. (author)
Construction and Building Materials ; 107 ; 11-16
2015-12-22
6 pages
Article (Journal)
Electronic Resource
English
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