INVESTIGATE THE WAY OF FIXING THE ROAD THROUGH SOIL STABILIZATION AND SANDY LIME MATERIALS IN PAVEMENT

Abstract

Considering to the wide existence of fine-grained clay soils in the country, there are many problems in the stability of the bed of civil projects, which requires a stabilization before the construction. In this research soil and lime stabilized properties are considered. The obtained results of experiments and studies have shown the extraordinary effect of lime on soil clay resistance. The percentages of lime were 0%, 6%, 10% and 14%, and the processing times of the samples were performed according to the schedule of zero days, 14 days and 28 days, after which the compressive strength test was performed and  the end of the desired time. The results of single-axial compressive strength show different treatments with different lime percentages. After 10-day increment, the compressive strength of the specimens significantly increased after 28 days. On the other hand, the addition of 14% of lime causes a slight increase in the compressive strength of the samples; this is due to the fact that the soil's free space is saturated with lime; consequently, there is no more lime in the increasing process of resistance while increasing the cost of the sample