| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 256232 | Construction and Building Materials | 2016 | 6 Pages |
•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.
This paper aims to contribute with durability studies by monitoring the unsaturated concrete resistivity over 2 years. 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.
