Degradation Behavior of Concrete after Freeze-Thaw Cycles and Then Exposure to High Temperatures

Figure 6

The failure modes of specimens after different freeze-thaw cycles and different temperatures cooled by spray water: (a) 20°C, (b) 300°C, (c) 400°C, and (d) 500°C.

(a)

(b)

(c)

(d)