Solidification/Stabilization of Fly Ash from a Municipal Solid Waste Incineration Facility Using Portland Cement

Table 3

Chemical compositions of fly ash and OPC.

Chemical composition	Unit	Fly ash	OPC
SiO2	%	11.53	20.85
Al2O3	%	7.89	5.71
Fe2O3	%	2.57	3.33
CaO	%	41.80	60.48
MgO	%	2.27	2.28
SO3	%	3.25	2.84
Na2O	%	2.58	1.43
K2O	%	5.74	0.73
TiO2	%	0.68	0.31
Cl	%	10.89	0.26
ZnO	%	1.30	—
PbO	%	0.55	—
CdO	%	0.07	—
MnO	%	0.07	—
CuO	%	0.25	—
Cr2O3	%	0.01	—