Physicochemical Properties of Handere Clays and Their Use as a Building Material

Table 2

The results of chemical analysis of Handere clay (%).

Chemical composition	Mean	Standard deviation
SiO2	61.71	0.21
Al2O3	16.42	0.58
Na2O	2.26	0.19
K2O	4.58	0.24
Fe2O3	7	1.76
CaO + MgO	3.92	0.33
Others	4.12	1.83