This paper presents study of the stabilization of natural soil with lime. Firstly, Soil samples from Madaya Township are collected and several laboratory tests are carried out to determine the characteristics and engineering properties of the studied soil. Then experimental tests have been conducted for the determination of Atterberg limits and California Bearing Ratio (CBR) values. The studied soil contains more than 50% of silt-clay fraction. So, the studied soil is stabilized with lime contents selected as 5% and 10% by weight of natural soil at maximum dry density. When soil samples are mixed with lime, the values of liquid limit, plasticity index and CBR values are changed. These changes are decreased in swelling and shrinking potential of the soil, decreased in the settlement of the pavements, increase in workability and increase in the bearing capacity of the soils. In this study, the CBR values of soil-lime mixtures are 71.4% and 64.4% higher than that of studied soil. It can be seen that the CBR value of lime 5% is greater than lime 10% and natural soil. So, soil-lime mixture with lime 5% content is suiTablefor soil stabilization of the street, road and highway.
soil stabilization, lime, soil-lime mixture
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