Fig. 10From: A Concise on the Effect of Calcium Oxide on the Properties of Alkali-Activated Materials: A Manual for Civil EngineersBSE images of slag paste samples activated with sole CaO (a, b), CaO coupled with 10% gypsum (c, d) and CaO coupled with 15% gypsum (e, f) (Park et al., 2016a)Back to article page