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

Figure 13

Strain of the water-cooled concrete after freeze-thaw cycles at different heating temperatures. (a) Stress-strain curves of the unfrozen concrete at different temperatures. (b) Stress-strain curves of the freeze-thawed concrete with 25 cycles at different temperatures. (c) Stress-strain curves of the freeze-thawed concrete with 45 cycles at different temperatures. (d) Relative peak strain after freeze-thaw cycles at different temperatures.

(a)

(b)

(c)

(d)