Predicting the UCS of Lime‒Stabilized Clayey Soils

Abstract

This study was made in order to develop a statistical model for predicting the unconfined compressive strength (UCS) of lime-stabilized clayey soils. The obtained results showed that the developed model (UCS‒Model) is very efficient and can be used as a reliable tool for predicting the UCS of lime‒stabilized clayey soils. Indeed, both the (F-test) and (t-test) showed that the significance value of UCS‒Model was found to be less than 0.05 which indicates that the lime content and curing time significantly contribute to the constructed model and lead to a better prediction of UCS. In addition, the comparison study between predicted values and experimental data indicated that the UCS model can be reasonably applied to explain the effect of lime content below 10%, and curing time between 0 and 90 days on UCS of clayey soils and to design new mixtures without making an experimental study.