Department of Civil and Environmental Engineering;
Temple University;
Philadelphia;
PA 19122;
USA;
Department of Civil Engineering;
Sharif University of Technology;
Tehran;
Iran;
Department of Civil Engineering;
The University of Texas at El Paso;
El Paso;
TX 79968;
USA;
Loess; Electrokinetics; Collapsible; soil; Soil; improvement; Unsaturated; oedometer; Nanosilica;