Physical and Mechanical Properties of Gypsum-Like Rock Materials

Figure 14

X-ray diffraction pattern of each group of samples. (a) Gypsum. (b) Natural sample. (c) Dehydrated sample at 45°C. (d) Water saturated sample. (e) High-temperature dehydrated sample at 220°C.

(a)

(b)

(c)

(d)

(e)