Bond Behavior of Reinforcing Steel Bars in Thermal Insulation Concrete Exposed to Freeze-Thaw Cycles

Figure 6

Surface conditions for the TIC and NC specimens after exposing to different numbers of F-T cycles. (a) 0, (b) 30, (c) 50, (d) 100, (e) 200, and (f) 300.

(a)

(b)

(c)

(d)

(e)

(f)