EXPERIMENTAL STUDY ON OPTIMAL WATER CONTENT OF THE MODIFIED EXPANSIVE CLAY USED AS THE EMBANKMENT FILLS

This paper presents experimental shearing and swelling results of the modified expansive clay with different water contents and lime (cement) content. The influence of the water content and the lime (cement) content on the shearing strength and swelling capacity are evaluated according to the experimental results. The optimal water content and lime content are then obtained. The authors also provide guidelines for modification of expansive clay.