Table 2 Best fitting value of EIS 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

pH

Rebar

Rs (Ω·cm2)

Rf (Ω·cm2·104)

CPE1

Rct (Ω·cm2·105)

CPE2

Chi-square value (χ2·10−5)

C1 (F·cm−2·10−5)

C2 (F·cm−2·10−6)

Y01 (Ω−1·cm2·sn·10−5)

n1

Y02 (Ω−1·cm2·sn·10−5)

n2

13.2

CS

17.77 ± 1.3

4.932 ± 24

2.083 ± 0.06

0.92 ± 0.3

6.704 ± 63

2.969 ± 0.04

0.81 ± 0.1

8.21 ± 0.04

2.09 ± 0.02

1.07 ± 0.03

LNb

6.56 ± 1.1

0.136 ± 23

6.519 ± 0.01

0.91 ± 0.2

0.427 ± 58

6.976 ± 0.02

0.82 ± 0.3

7.45 ± 0.03

5.13 ± 0.02

5.65 ± 0.05

MNb

6.83 ± 1.3

0.171 ± 21

5.811 ± 0.03

0.91 ± 0.1

6.748 ± 60

5.262 ± 0.04

0.81 ± 0.2

5.32 ± 0.02

4.62 ± 0.04

3.32 ± 0.03

HNb

7.16 ± 1.2

0.318 ± 24

4.212 ± 0.04

0.91 ± 0.3

7.612 ± 62

3.206 ± 0.05

0.80 ± 0.2

4.53 ± 0.03

3.45 ± 0.03

1.47 ± 0.03

12.5

CS

14.25 ± 1.1

2.282 ± 25

2.839 ± 0.05

0.90 ± 0.2

4.502 ± 60

5.563 ± 0.02

0.81 ± 0.4

6.84 ± 0.03

2.71 ± 0.02

3.61 ± 0.04

LNb

10.91 ± 1.1

3.688 ± 24

3.514 ± 0.04

0.92 ± 0.4

5.239 ± 61

4.721 ± 0.03

0.82 ± 0.2

5.54 ± 0.04

3.59 ± 0.02

3.14 ± 0.04

MNb

13.67 ± 1.3

4.317 ± 23

2.459 ± 0.02

0.92 ± 0.3

7.365 ± 64

3.085 ± 0.02

0.81 ± 0.2

4.31 ± 0.04

2.47 ± 0.04

1.46 ± 0.02

HNb

15.81 ± 1.2

6.491 ± 22

2.069 ± 0.04

0.92 ± 0.4

8.971 ± 68

2.796 ± 0.04

0.81 ± 0.4

3.64 ± 0.05

2.12 ± 0.02

1.25 ± 0.03

10.5

CS

7.66 ± 1.2

1.402 ± 22

4.718 ± 0.02

0.90 ± 0.2

2.728 ± 68

6.531 ± 0.04

0.82 ± 0.3

5.36 ± 0.05

4.51 ± 0.03

4.23 ± 0.04

LNb

18.77 ± 1.3

5.575 ± 24

2.273 ± 0.04

0.91 ± 0.1

8.559 ± 55

3.272 ± 0.04

0.82 ± 0.5

3.82 ± 0.04

2.32 ± 0.04

1.78 ± 0.03

MNb

19.87 ± 1.4

7.201 ± 23

1.906 ± 0.06

0.92 ± 0.3

10.32 ± 58

2.141 ± 0.06

0.81 ± 0.3

3.01 ± 0.02

1.96 ± 0.03

1.01 ± 0.05

HNb

21.91 ± 1.1

9.848 ± 22

1.665 ± 0.04

0.91 ± 0.2

13.21 ± 62

1.178 ± 0.05

0.82 ± 0.3

2.43 ± 0.04

1.75 ± 0.03

0.71 ± 0.02

9.0

CS

5.88 ± 1.0

0.073 ± 22

7.026 ± 0.02

0.90 ± 0.5

0.257 ± 55

8.209 ± 0.03

0.80 ± 0.4

4.43 ± 0.05

5.43 ± 0.03

5.96 ± 0.05

LNb

21.99 ± 1.2

6.549 ± 22

1.769 ± 0.04

0.91 ± 0.4

9.494 ± 64

2.698 ± 0.06

0.80 ± 0.2

3.24 ± 0.03

1.79 ± 0.02

0.89 ± 0.04

MNb

23.19 ± 1.1

9.234 ± 21

1.545 ± 0.03

0.90 ± 0.3

13.63 ± 68

1.459 ± 0.05

0.82 ± 0.1

2.24 ± 0.04

1.61 ± 0.03

0.64 ± 0.03

HNb

26.26 ± 1.4

11.54 ± 24

1.189 ± 0.06

0.90 ± 0.2

21.34 ± 66

1.115 ± 0.04

0.80 ± 0.3

1.56 ± 0.03

1.23 ± 0.04

0.28 ± 0.02

Back to article page