Abstract: Both theoretical and practical progresses aspects of the application of recycled tires in the geotechnical engineering have been achieved in recent years. This paper presents a state of the art review of the application of shredded waste tire chips in the strengthening of various soils, such as, sandy soils, expansive soils; collapsible loess and cohesive soils. The results and effects of various mixing contents and tire chips sizes in these soils are reviewed. The results indicate that, larger tire chip size can improve the frictional resistance at the face of shearing and therefore increase the strength of mixed soils. The tire chips mixed soils can reduce the unit weight in the geotechnical and roadway engineering and can improved both strength and stiffness of soils. It is suggested that the cyclic shear resistance, aging effect of tire chips and impact of tie chips to the adjacent environment need to be further investigated.

Key words: Geotechnical Engineering, Wasted Tires, Mixture Content, Shear Strength