A geomembrane is a very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid (liquid or gas) migration in a human-made project, structure, or system.
Geosynthetic clay liners (GCLs) are factory manufactured hydraulic barriers consisting of a layer of bentonite or other very low-permeability material supported by geotextiles and/or geomembranes, mechanically held together by needling, stitching, or chemical adhesives.
A geonet is a geosynthetic material similar in structure to a geogrid, consisting of integrally connected parallel sets of ribs overlying similar sets at various angles for in-plane drainage of liquids or gases.
Geonets are often laminated with geotextiles on one or both surfaces and are then referred to as drainage geocomposites.
Nonwoven geotextiles are permeable geosynthetics161 made of nonwoven materials used with soil, rock, or other geotechnical-related material as an integral part of a civil engineering project, structure, or system.
"Woven geotextiles" are a type of geotextiles which are manufactured by interlacing two or more sets of yarns, fibers, filaments, tapes, or other elements.
Prefabricated Vertical Drains, also known as Wick Drains or band drains are prefabricated geotextile filter-wrapped plastic strips with moulded channels.
Erosion control matting is a rolled erosion control product, also known as an erosion control blanket. Rolled erosion control products stabilize the soil in order to mitigate erosion and provide an environment for vegetation to establish.
A biaxial geogrid is a geosynthetic compound made out of polypropylene polymers and are primarily used to reinforce and stabilise soils.
Uniaxial geogrids carry high tensile loads applied in one direction (along the roll length). Their open aperture structure interlocks with fill material to provide superior load transfer from the soil to the geogrid.
Geocells are used in construction to reduce erosion, stabilize soil, protect channels, and provide structural reinforcement for load support and earth retention.