Bulletin of the National Research Centre

Table 1 Chemical analyses of the used sample in weight %

From: Assessment of waste clays in the Qusseir region of east central Egypt for production of lightweight bricks

SiO₂	Al₂O₃	Fe₂O₃*	TiO₂	MnO	CaO	MgO	Na₂O	K₂O	P₂O₅	SO₃	LOI	Total
21.27	7.51	1.98	0.24	0.02	15.2	0.82	0.24	0.45	4.54	4.81	42.90	99.98

*Total iron as ferric oxide

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