Stress-Strain Behaviours Of Two Stage Lime-Cement Treated Expansive Soils

Abstract: The aim of this research work is to examine the stress-strain behaviours of Two Stage Lime-Cement Stabilized Expansive Soil. The stress-strain of stabilized soils under different loading conditions is essential to properly understand how the material will behave when exposed to applied load. An investigation has been performed on soils stabilized in two stage lime-cement process in different combinations of binders with the purpose of demonstrating the impact of different loading conditions. The binders used were lime, cement, and a combination of lime and cement with a mellowing period between them. Strains at failure were recorded on all tested samples. The results show that while the untreated sample exhibited a ductile behavior, the lime treated samples exhibited brittle behavior but the two stage lime-cement treatment changed the brittle behaviour of lime treated soils to more ductile ones. This abrupt change from brittle to ductility is strongly linked to the influence that the two stage lime-cement treatment has on the deformation behaviour of treated soils.