Incineration of Textile Sludge for Partial Replacement of Cement in Concrete Production: A Case of Ethiopian Textile Industries

Table 2

Chemical composition of textile sludge ash and cement.

Oxides (content by weight %)	Textile sludge ash	OPC
Fe2O3	3.19	3.71
MgO	1.79	1.53
Al2O3	12.73	4.56
CaO	23.87	64.07
SiO2	18.51	19.39
SO3	9.33	3.93
Na2O	2.36	0.04
K2O	0.31	0.66
Loss on ignition	3.47	1.65