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Ringtrac® is the key component in an innovative foundation system suitable for use in soft to extremely soft soils. Combining high tensile strength and axial stiffness, the seamless, cylindrical reinforcement sleeve creates a clearly defined column shape regardless of soil conditions, even in extremely soft or karst soils. Ringtrac® columns are ideal for constructing embankment foundations for development land reclamation and as a reliable foundation system in earthquake regions – with the flexible material serving to enhance the ductility of the sand/granular columns.