Table 1 Relationship between permeability class and surface resistivity (FDOT Standard 2004).
From: Correlation Between Bulk and Surface Resistivity of Concrete
Chloride ion permeability classification | Surface resistivity test 28 day test Kohm-cm |
|---|---|
High | <12 |
Moderate | 12–21 |
Low | 21–37 |
Very low | 37–254 |
Negligible | >254 |