Mechanism on Activation of Coal Gangue Admixture

Figure 17

XRD patterns of the different types of specimens at various ages. 1—dickite; 2—calcium tecto-alumosilicate; 3—ettringite (AFt); 4—calcium silicate hydroxide (C-S-H); 5—calcium chloride (CaCl₂); 6—calcium hydroxide (Ca(OH)₂); 7—quartz; 8—albite; 9—C₂S; 10—C₃S; 11—sodium aluminum silicide (N-A-S-H). (a) 3 d. (b) 7 d. (c) 28 d.

(a)

(b)

(c)