Structural Strength Deterioration Characteristics and a Model of Undisturbed Loess under the Action of Wetting and Freeze-Thaw Cycles

Figure 9

Binarization images of SEM: (a) undisturbed loess samples; (b)  = 20%; (c) = 20% and n = 1 time; (d)  = 20% and n = 3 times; (e)  = 20% and n = 6 times; (f)  = 20% and n = 9 times.

(a)

(b)

(c)

(d)

(e)

(f)