A Method for Measuring Geomembrane Surface Roughness

Abstract

A method for quantitatively measuring the roughness of geomembrane surfaces has been developed. This method uses stereology concepts together with optical profilometry techniques to determine the surface roughness parameter, R S . The surface roughness parameter is the average value of the product of the profile roughness parameter and the profile structure factor over three geomembrane cross sections. A surface roughness classification is proposed which defines four categories of geomembrane texturing.