Small-Scale Void-Size Determination in Reinforced Concrete Using GPR

Figure 12

Forward and preprocessing results for rebar: (a) forward result,  = 3 cm; (b) forward result,  = 5 cm; (c) forward result,  = 8 cm; (d) forward result,  = 10 cm; (e) preprocessing result of (a); (f) preprocessing result of (b); (g) preprocessing result of (c); (h) preprocessing result of (d).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)