Geosynthetic clay liner and geomembrane are geosynthetic materials used in a variety of engineering and environmental applications. Although they have some similar anti-seepage properties. But they have obvious differences in composition, performance and application.
Want more information on geosynthetic clay liner supplier? Feel free to contact us.
BPM Geosynthetics is the leading geosynthetic clay liner and geomembrane manufacturer and supplier with 13+ years of Geosynthetic clay liner and HDPE geomembrane manufacturing experinces. In this article, we will discuss the differences of geosynthetic clay liners vs geomembranes. By comparing the differences between the two, we can make a better choice between a geosynthetic clay liner (GCL) and a geomembrane for your specific project.
Geosynthetic clay liner (GCL), also known as clay blanket, bentonite blankets, bentonite mats, prefabricated bentonite clay blankets and clay geosynthetic barriers, are factory-made hydraulic barriers consisting of a layer of bentonite or other composed of a very low permeability material supported by geotextiles and/or geomembranes that are mechanically fastened together by needling, stitching, or chemical adhesives. GCL liner is widely used in landfills to trap internal leakage. Its bentonite, consisting primarily (>70%) of montmorillonite or other expanded clays, is the preferred and most commonly used GCL. A typical GCL structure consists of two layers of geosynthetic material sewn together and surrounded by a layer of natural or processed Sodium bentonite. Typically, woven and/or nonwoven textile geosynthetics are used, however, polyethylene or geomembrane layers or geogrid geotextile materials have also been incorporated into the design or replaced the textile layer for added strength.
A geomembrane is an extremely low-permeability synthetic membrane liner or barrier that can be used with any geotechnical-related material to control fluid (liquid or gas) migration in man-made projects, structures or systems. Geomembranes are made from relatively thin, continuous polymer sheets, but they can also be made by impregnating geotextiles with asphalt, elastomers or polymer sprays, or as multi-layer asphalt geocomposites. Continuous polymer sheet geomembranes are by far the most common.
If you want to learn more, please visit our website features and applications of geogrid manufacturer.
BPM Geosynthetics geomembrane is a waterproof barrier material produced from high-density polyethylene resin. The full name is “high-density polyethylene film”, which has excellent environmental stress cracking resistance, low temperature resistance, aging resistance, corrosion resistance, a large operating temperature range (-60–+60) and a long service life. It is widely used in domestic waste landfill anti-seepage, solid waste landfill anti-seepage, sewage treatment plant anti-seepage, artificial lake anti-seepage, tailings treatment and other anti-seepage projects.
In short, geosynthetic clay liner (GCL) relies on the swelling properties of bentonite to provide a low-permeability barrier, while the main mechanism of geomembrane is to use the impermeability of plastic films to block earth dam leakage channels, with its greater tensile strength and elongation to withstand water pressure and adapt to dam body deformation; GCL is commonly used for hydraulic barriers, while geomembranes are used as general purpose liners and barriers in a variety of geotechnical and environmental applications. In some projects with high anti-seepage requirements, the two will be used together to improve the anti-seepage effect of the project.
Are you interested in learning more about rpp geomembrane liner wholesale? Contact us today to secure an expert consultation!