The effect of samples disturbance of partially saturated expansive clay soils on the soil properties

Abstract

The internal structure of the expansive clay soils is sensitive to the disturbance. When the samples are extracted, the structure of the natural soil is damaged when it is remolded. Therefore, a change in the properties of the expansive soil happens. This matter must be more precisely defined in the design of the foundations of engineering facilities. The objective of this research is to conduct a study of the effect of the disturbance of expansive clay partially saturated soil samples. The obtained results indicate that the behavior of the expansive soil tends to change during the formation of samples. This behavior is based on soil properties, chemical composition and the content of their expansive soil minerals. Soil structure disturbance causes a decrease in soil property variables.