With their ability to swell and shrink in relation to the environment's water content, expansive soils are considered as geonatural hazards and form a challenge to geotechnical and construction engineers. Addressing the problems associated with these soils, this book provides expert contributions on the recent advances in the characteristics and treatment of expansive soils. Beginning with an overview on the nature, identification, and classification of expansive soils, it confronts current issues including volume change characteristics; site characterization; the measurement and assessment of soil swelling potential; suction; lime and cement stabilization and other stabilization methods.