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