Research on the Corrosion Damage Mechanism of Concrete in Two Freeze–Thaw Environments

Figure 6

Microstructure of the concrete in the IFT environment. (a) 0 freeze-thaw cycles; (b) 25 freeze-thaw cycles; (c) 50 freeze-thaw cycles; (d) 75 freeze-thaw cycles; and (e) 125 freeze-thaw cycles.

(a)

(b)

(c)

(d)

(e)