Table 1 Polarization resistance (Rp) of rebars exposed in chloride blended cement slurry added with different concentrations of additives and in control environment.
Additives | Concentration, % | Rp (KOhm cm2) | Inhibition efficiency |
|---|---|---|---|
Control | 0 | 0.12 | – |
NIS | 0.05 | 0.315 | 61.9 |
0.10 | 0.410 | 70.7 | |
0.15 | 1.500 | 92.0 | |
0.20 | 1.48 | 91.9 | |
0.25 | 1.45 | 91.7 | |
BTAH | 0.05 | 0.13 | 7.7 |
0.10 | 0.22 | 45.4 | |
0.15 | 0.28 | 57.1 | |
0.20 | 0.30 | 60.0 | |
0.25 | 0.28 | 57.1 | |
NIS + BTAH | 0.10 + 0.10 | 0.85 | 85.8 |
0.15 + 0.20 | 9.95 | 98.8 | |
0.15 + 0.25 | 9.85 | 98.7 |
