International Journal of Engineering and Technology

The effects of compaction energy on engineering properties of an expansive soil stabilized with optimum percentage of fly ash-granite dust have been discussed in this paper. Expansive soil stabilized with optimum percentage of fly ash-granite dust was compacted with five compaction energy levels. Maximum dry density and optimum moisture content corresponding to each energy level were determined. Based on these maximum dry density and optimum moisture content, samples were prepared for unconfined compressive strength, soaked California bearing ratio, hydraulic conductivity and swelling pressure tests. From the test results it is found that increase in compaction energy increased the maximum dry density, unconfined compressive strength, soaked California bearing ratio and swelling pressure, and decreased the optimum moisture content and hydraulic conductivity.