Geosynthetics December 2021/January 2022 - 45

GEOTEXTILES
PRODUCT DATA
FOR MORE INFORMATION
Geosynthetics magazine has provided
information on the geotextile specification
charts for comparative purposes only.
Designers should contact manufacturers
for additional details and to discuss sitespecific
considerations.
Information on the use and specification
of geotextiles is also available from the
Geosynthetic Materials Association (GMA).
GMA
1801 County Road B West, Suite 100
Roseville, MN 55113-4052 USA
+1 651 225 6981
fax +1 651 631 9334
fcchuck@ifai.com
www.GMAnow.com
PUBLISHER'S NOTE
Geosynthetics magazine compiled all
information included in the 2022 Geosynthetics
Specifier's Guide from information submitted by
firms in the geosynthetics industry. Companies
provided specifications voluntarily, and
specification accuracy is the responsibility
of the manufacturer. The appearance of a
listing in this directory is not an endorsement
of the company or product by Geosynthetics
magazine or the Industrial Fabrics Association
International (IFAI). The 2022 Geosynthetics
Specifier's Guide is intended as a guide, and
Geosynthetics magazine and IFAI encourage
readers to contact the companies listed for
further information.
Manufacturers engineer these products to provide costeffective
solutions and to meet specific design requirements
for separation, reinforcement, filtration, drainage and
protection applications.
A
lthough engineers have developed numerous applications for geotextiles,
there are five major functions: separation, reinforcement,
filtration, drainage and protection. The major geotextile classifications
are woven, nonwoven and knitted. Generally, woven fabrics exhibit
high tensile strength, high modulus and low elongation. Needlepunched
nonwoven fabrics typically have high permeability as a result of high porosity
and conformability because of their high elongation characteristics.
Thermally spun, bonded, nonwoven fabrics typically have high modulus,
compared to needlepunched nonwoven fabrics, and high conformability.
Depending on the manufacturing process, knitted geotextiles can offer
high tensile strength and elasticity.
Geotextiles are available in a variety of structures and polymer compositions
designed to meet a wide range of applications. It is important that
all geotextiles be composed of strong, durable, chemically inert polymeric
materials that are resistant to the effects of site-specific ground conditions,
weather and aging.
In permanent installations, long-term material performance is a result of
the polymer structure's durability. Depending on the application, geotextiles
may have other survivability requirements, such as creep resistance, resistance
to temperature and ultraviolet exposure.
The numbers
Companies that submitted product data chart lines were asked to provide data
determined through industry-accepted testing methods. Companies were
asked to sign a certificate of compliance verifying the accuracy of this data.
www.GeosyntheticsMagazine.com
45
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Geosynthetics December 2021/January 2022

Table of Contents for the Digital Edition of Geosynthetics December 2021/January 2022
