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The rapid increase in construction activities over the past few decades have undeniably increased the importance of ground improvement techniques. Ground improvement techniques are numerous but all aim to rectify the engineering behavior of problematic soils so as to achieve desired properties. According to theoretical and experimental research, reinforcing soil by inclusion of granular/lime columns is considered to be economical, feasible and effective in soft soils. This research aims at investigating the effects of floating columns in clayey soil with silty deposits by developing small scale laboratory models. A comparison is made among lime and granular columns whereby the results of the treated ground are compared to the untreated ground. The effects of granular/lime columns on soils of different shear strengths (low-medium-high) and slenderness ratio (L/D) of columns are investigated. Based on the results, it is concluded that the granular columns gave higher strength than lime columns in the soil of low shear strength, whereas the lime columns gave more strength than granular columns in soil of higher shear strength.