ABSTRACT

Lime-treated expansive soils are typically in a state of unsaturated condition in the field due to in-situ compaction. Therefore, its engineering behavior can be further understood by considering the influence of matric suction on its behavior. The soil water characteristic curve (SWCC) is considered a tool used for predicting and interpreting the engineering behavior of unsaturated soils. SWCC describes the relationship between water content (whether gravimetric or volumetric) and soil suction.