Effect of Wetting and Drying Cycle on the Behavior of Teff Straw Ash-Stabilized Expansive Soil

Figure 11

Combined figure of XRD patterns at different curing times: (a) 4-day curing, (b) 14-day curing, (c) 28-day curing, and (d) natural black cotton soil.

(a)

(b)

(c)

(d)