Experimental Investigation of the Variation of Concrete Pores under the Action of Freeze-Thaw Cycles by Using X-Ray CT

Figure 7

Changing process of the connected pores under the action of freeze-thaw cycles.

(a) 0 cycles

(b) 12 cycles

(c) 18 cycles

(d) 24 cycles

(e) 30 cycles

(f) 36 cycles