Fresh and Hardened Properties of Concrete Incorporating Binary Blend of Metakaolin and Ground Granulated Blast Furnace Slag as Supplementary Cementitious Material

Table 1

Chemical composition of binders.

Compound	PC	MK	GGBFS
SiO2	20.78	54.60	37.22
Al2O3	5.11	33.40	10.37
Fe2O3	3.17	2.88	1.23
CaO	60.22	3.40	35.66
Na2O	0.18	—	0.23
SO3	2.86	0.47	0.34
Specific gravity	3.15	2.34	2.25