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Table 5 Corrosion potential measured by half-cell method.

From: Seasonal Variation and Age-related Changes in the Relative Permittivity of Concrete Bridge Decks on Korea Expressways

Location

Areal percentage of potential E

Note

Bridge

Span

Lane

E < −350a

−350 ≤ E ≤ −200b

−200 < Ec

JB-3N

3

2

0.0

0.2

99.8

T1

4

2

27.9

71.6

0.5

T2

5

1

14.0

48.3

37.6

T3

JB-3S

3

2

0.0

0.0

100.0

T4

4

2

0.0

15.1

84.9

T5

  1. aGreater than 90% probability of rebar corrosion.
  2. bCorrosion activity of the rebar in that area is uncertain.
  3. c90% probability that there is no rebar corrosion (10% risk of rebar corrosion).