Chloride Penetration into Concrete under the Coupling Effects of Internal and External Relative Humidity

Figure 10

Chloride content curves of concrete after chloride attack and water convection time. (a) After 2-week chloride attack (w/c = 0.4), (b) after 16-week chloride attack (w/c = 0.4), (c) after 2-week chloride attack (w/c = 0.6), and (d) after 16-week chloride attack (w/c = 0.6). “2 w Cl⁻” represents that chloride content was immediately determined after 2-week chloride attack (control group); “2 w Cl⁻ + 16 w H₂O” presents that the concrete was first subjected to the chloride attack for 2 weeks and then the opposite surface connected with water for 16 weeks.

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(b)

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