Fig. 5From: Effect of Silica Fume on the Volume Expansion of Metakaolin-Based Geopolymer Considering the Silicon-to-Aluminum Molar RatioCompressive strength results of the geopolymer specimens with respect to silica fume contents: a S/A 1.0, b S/A 1.4, and c S/A 1.8.Back to article page