Comparative Study of Mortars Made with Sands of Different Geological Origin

Table 6

Chemical composition of the studied sands obtained by XRF.

Oxides (%)	LOI	SiO2	Al2O3	Fe203	CaO	MgO	SO3	K2O	Na2O	P2O5
Granite	1.37	55.18	11.96	4.66	2.9	1.5	0.05	5.2	2.56	0.31
Gneiss	1.12	41.27	9.68	6.93	2.2	2.34	0.08	2.5	1.36	0.23
Basalt	1.65	42.37	10.14	12.68	9.66	17.54	0.08	1.21	1.87	0.46
Wouri	1.87	61.78	5.4	3.01	1.45	0.45	0.04	2.28	0.68	0.07
Sanaga	1.55	63.19	5.83	3.18	2.02	0.33	0.05	2.52	0.69	0.06