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

Figure 4

Chloride content curves of concrete with various internal RH (w/c = 0.5). (a) RH = 50%, (b) RH = 75%, (c) RH = 80%, (d) RH = 100%. Control group represents that the chloride content was immediately determined after the chloride attack test. The A specimen was initially saturated with NaCl solution; the B specimen was initially saturated with water; 1, 6, and 12 months were the connecting duration for A and B specimens.

(a)

(b)

(c)

(d)