This Resonant Column is a high quality apparatus for measuring the low-shear Strain (less than 0.001%) or elastic modulus and damping properties of materials (e.g. wide variety of soils, rocks, Asphalt, etc) for solid- or hollow cylindrical samples under confined condition. It works based on the theory of wave propagation and used to vibrate the top of the soil specimen The device can work under two different boundary conditions, so called free-free and fix-free conditions, which depends minimum desired strain that operator wants to start RC experiment.

This resonant column is equipped for isotropic and as an option for anisotropic tests. Also this apparatus can be upgraded to perform experiments in unsaturated condition. Several other upgrading options are available on client’s request.