Geotextile
(GT)
A permeable geosynthetic comprised solely of textiles.
Discussion – Geotextile perform several functions in geotechnical
engineering applications, including: separation; filtration; drainage;
reinforcement; and protection. (ref. ASTM D4439)
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Geogrid
(GG)
A geosynthetic formed by a regular network of integrally connected
elements with apertures greater than 6.35(mm) (1/4 in.) to allow
interlocking with surrounding soil, rock, earth, and other surrounding
materials to function primarily as reinforcement. (Ref. ASTM
D 4439)
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Geomembrane
(GM)
An essentially impermeable geosynthetic composed of one or more
synthetic sheets. (Ref. ASTM D 4439)
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Geonet
(GN)
A geosynthetic consisting of integrally connected parallel sets
of ribs overlying similar sets at various angles for planar drainage
of liquids or gases.
(Ref. ASTM D 4439)
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Geosynthetic
Clay Liner (GCL)
A manufactured hydraulic barrier consisting of clay bonded to
a layer or layers of geosynthetic materials. (Ref. ASTM D 4439)
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Geocomposite
(GC)
A product composed of two or more materials, at least one of
which is a geosynthetic. (Ref. ASTM D 4439)
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Geo-Others
Geofoam (GF)
Block or planar rigid cellular foamed polymeric material used
in geotechnical engineering applications. (Ref. ASTM D 4439)
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