From: Influence of steel plates on the compressive strength and pore structure of concrete
Composition (mass)
Cement
Fly ash
SiO2
21.47
49.47
CaO
65.77
4.45
Al2O3
5.47
20.67
Fe2O3
4.28
14.32
MgO
1.44
1.17
SO3
0.52
1.40