Study on the Performance of Expansive Subgrade Soil Stabilized with Enset Ash

Table 2

Chemical properties of Enset ash.

Elemental oxides	Concentration (%)
Silica (SiO2)	18.58
Alumina (Al2O3)	<0.01
Iron oxide (Fe2O3)	0.52
Calcium oxide (CaO)	9.52
Magnesium oxide (MgO)	2.44
Sodium oxide (Na2O)	0.08
Potassium oxide (K2O)	29.04
Manganese oxide (MnO)	0.32
Phosphorus pentoxide (P5O5)	2.70
Titanium dioxide (TiO2)	<0.01
Loss on ignition (LOI)	30.43