ABSTRACT This paper is part of a series of investigation carried out on aspects related to the performance of cast earth with a clayey soil, the third option for construction with stabilized soil beside the compression and ramming. A soil composed of 14% clay, quartz and calcite, is stabilized with 10% Portland cementwith soda lime glass powder (GP) as cement replacement materials. Different dosages from polynaphthalene sulphonate superplasticizer are added to gain the soil pourable properties. The effect of potassium chloride (KCl) on the swelling properties of clayey soil is studied to enable the stabilization of the clay-bearing soil with cement.The results show that the 7% KCl clay-swelling inhibitors reduce the expansion of the soil by ~25% with a maximum increase in the 90-day compressive strength of 18%.