All posts by: GeoTrust

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Physical and Mechanical Properties of Geomembrane

Physical Properties The main physical properties of geomembranes in the as-manufactured state are: Thickness (smooth sheet, textured, asperity height) Density Melt flow index Mass per unit area (weight) Vapor transmission (water and solvent). Mechanical properties There are a number of mechanical tests that have been developed to determine the strength of polymeric sheet materials. Many […]

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How Geomembrane is Manufactured?

What is Geomembrane? A geomembrane is very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid (or gas) migration in a human-made project, structure, or system. Geomembranes are made from relatively thin continuous polymeric sheets, but they can also be made from the impregnation of geotextiles with asphalt, elastomer or polymer sprays, or as multilayered bitumen geocomposites. […]