DefinePK

Abstract

Soil stabilization with cement has been extensively used for the improvement of soft clay soils, in enhancing the shear strength and limiting the deformation behaviors. The alternative cheaper admixture agents are essential since high costs are involved in the manufacture of cement production. The possibility of admixing cement with waste products such as dust shell (DS) as admixture for stabilizing soft soils will be presented in this paper. This study was aimed at assessing the usefulness of cement-dust shell (DS) as an effective soil admixture for improving some properties of clay soils. The stabilized specimens were prepared with the kaolin admixed with 5 % cement and various quantities of dust shell. Observation are made for the change in the properties of soil such as Atterberg Limits, Maximum dry density (MDD), Optimum moisture content (OMC) and Unconfined compressive strength (UCS). Result shows that the addition of dust shell slightly increases the maximum dry density and reducing optimum moisture content. In addition, the unconfined compressive strength of 5% cement-treated with dust shell samples increases with an increase of the amount of dust shell. This study indicates that cement-dust shell has a potential as an alternative soft soil stabilizer in soft soil stabilization with highlight the economical and environmental friendly material utilize.