Study on the Permeability Characteristics of Polyurethane Soil Stabilizer Reinforced Sand

Figure 16

SEM images of specimen reinforced with PSS 5%: (a) 50 times magnification, (b) 100 times magnification, (c) 150 times magnification, and (d) 200 times magnification.

(a)

(b)

(c)

(d)