Table 1.

Chemical components of the cement and fly ash.

Components	Cement	Fly Ash
$Si{O}_2$ (%)	21.38	50.15
$A{l}_2{O}_3$ (%)	5.63	30.51
$F{e}_2{O}_3$ (%)	3.56	2.08
$CaO$ (%)	63.72	12.5
$MgO$ (%)	2.15	0.088
$S{O}_3$ (%)	1.75	0.4
$N{a}_{2}O$ (%)	1.02	1.32
LOI (%)	0.79	1.13
Total (%)	100	98.2

Where LOI is the abbreviation of Loss on Ignition.