Soil Water Characteristic Curve for Unsaturated Soils from Sudan
Keywords:
Unsaturated soil, Suction, SWCC.Abstract
This paper reviews current research being conducted by various researchers on suction moisture content relationships for unsaturated soils from Sudan, with special emphasis on the highly plastic swelling clays from central and eastern clay plains of Sudan. Data was collected for soil water characteristic Curve (SWCC) for clay (CH) samples from central, eastern, and southern clay plains of Sudan. Due to their inherent high suction, the filter paper method was used. Suction values higher than 10 MPa were measured for the highly plastic clays. A trend of linear relationship was obtained between air entry values (AEV) and plastic limit and AEV and liquid limit.