Title: The Permeability in Normal Direction of Geotextile (Permittivity) under Confined Condition
Abstract: Non-woven geotextiles have been used worldwide as drainage and filteration materials. But the permeability of geotextile depending on surcharge has not been yet estimated clearly, so a testing apparatus has been developed to measure the permeability normal to geotextile specimen under confined conditions. We tried the permeability test of geotextile with this apparatus. In this paper the cross-plane permeability of a nonwoven geotextile and a woven-nonwoven geocomposite under confined condition is described.