Table 1 M-S parameters of surface passive film of Nb-containing rebar and CS rebar after passivation for 10 d in SCPS with different pH

From: Effect of Nb contents on the passivation behavior of high-strength anti-seismic rebar in concrete environments

Rebar

ND (1020 × cm−3)

NA (1019 × cm−3)

EFB (V)

pH 13.2

pH 12.5

pH 10.5

pH 9.0

pH 13.2

pH 12.5

pH 10.5

pH 9.0

pH 13.2

pH 12.5

pH 10.5

pH 9.0

CS

19.67

15.68

14.69

8.39

-

-

-

-

−0.69

−0.39

−0.34

−0.31

LNb

18.26

9.05

7.26

3.66

41.46

23.91

15.26

8.05

−0.65

−0.28

−0.23

−0.22

MNb

15.07

7.40

5.26

3.09

40.85

17.83

13.37

7.44

−0.61

−0.24

−0.15

−0.14

HNb

11.35

5.42

4.73

2.84

22.98

14.32

12.56

7.35

−0.58

−0.21

−0.12

−0.11

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