Research Article
Strength and Drying Shrinkage of Alkali-Activated Slag Paste and Mortar
Table 1
Chemical composition of granulated blast furnace slag and cement (%wt).
| Physical properties/chemical compositions | GBFS | OPC |
| Calcium oxide, CaO | 39.54 | 63.56 | Silicon dioxide, SiO2 | 33.87 | 21.04 | Aluminum oxide, Al2O3 | 14.42 | 5.46 | Ferric oxide, Fe2O3 | 0.69 | 2.98 | Sulfur trioxide, SO3 | 2.47 | 2.04 | Sodium oxide, Na2O | 0.48 | 0.32 | Potassium oxide, K2O | 0.65 | 0.70 | Magnesium oxide, MgO | 5.35 | 2.52 | Loss on ignition, L.O.I. | 2.53 | 1.38 |
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