Table 4 State of corrosion on steel bar based on corrosion current density (Millard 2003).
From: Durability of Structural Lightweight Concrete Containing Expanded Perlite Aggregate
Corrosion status of reinforcing bar | Corrosion current densityIcorr, (μA/cm2) |
|---|---|
Passive/very low | Up to 0.2 |
Low/moderate | 0.2 to 0.5 |
Mod/high | 0.5 to 1.0 |
Very high | >1.0 |