Alkali-Active Sand Slate Powder for Use as Mineral Admixture in Mass Hydraulic Concrete: Technical and Economic Analysis

Figure 10

SEM pattern of ternary blends paste of sample coded S5. (a) S5-7 d (×1500), (b) S5-28 d (×3500), (c) S5-90 d (×2500), and (d) S5-180 d (×2500).

(a)

(b)

(c)

(d)