Research Article

Influence of Eggshell Ash and Stone Powder on Geotechnical Properties of Expansive Clay in Dukem Town

Table 1

Chemical composition of ESA.

ChemicalComposition (%)

Calcium oxide ()74.61
Calcium carbonate (CaCO3)14.79
Magnesium oxide ()1.39
Silicon dioxide (SiO2)0.24
Potassium oxide (K2O)0.087
Iron oxide ()0.0051
Sodium (Na)0.13
Sulfate (SO42−)0.27
Strontium oxide (SrO)0.13
Nickel oxide (NiO)0.001
Chlorine (Cl)0.08
LOI8.27