From: Effect of steel and PVA fibres as monofibres on strength and cracking properties of fly ash and slag-based alkali-activated concrete
Material
Density (kg/m3)
Specific gravity
Specific surface area (m2/kg)
GGBFS
1300
2.90
355
Fly ash
1200
2.11
450
Fine aggregate
1650
2.63
–
Coarse aggregate
1700
2.73