Geosynthetics December 2019/January 2020 - 82

Photograph courtesy NAUE

GEOGRIDS

PRODUCT DATA
FOR MORE INFORMATION
Geosynthetics magazine has provided
information on the geogrid 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 geogrids is also available from the
Geosynthetic Materials Association (GMA).
GMA
1801 County Road B West
Roseville, MN 55113-4061 USA
+1 651 225 6981
fax +1 651 631 9334
jmkivijarvi@ifai.com
www.GMAnow.com

PUBLISHER'S NOTE
Geosynthetics magazine compiled all
information included in the Geosynthetics
2020 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
Geosynthetics 2020 Specifier's Guide is intended
as a guide, and Geosynthetics magazine
and IFAI encourage readers to contact the
companies listed for further information.

82

Geosynthetics | December 2019 January 2020

Manufacturers design geogrids for reinforcement and,
characteristically, these products are integrally connected
to elements separated by in-plane apertures.

G

eogrids form a distinct category of geosynthetics designed for
reinforcement. These products are characterized by a relatively
high tensile strength and a uniformly distributed array of large
apertures (openings between the longitudinal and transverse elements). The
apertures allow soil particles on either side of the installed sheet to come
into direct contact, thereby increasing the interaction between the geogrid
and some soils. Also, the apertures ensure vertical drainage of a reinforced
free-draining soil.
The geogrid elements vary in polymer type and cross-sectional dimensions. They can sometimes change shape and dimensions within their length.
Geogrids are either integrally manufactured, ultrasonically or adhesive
bonded, or joined in a knitting or weaving process and then coated.
Although engineers use geogrids primarily for reinforcement, geogrids
are also used for asphalt overlay and waterprooﬁng, and for separation and
stabilization. In addition, geogrids are used as gabions and sheet anchors,
inserted between geotextiles and geomembranes, and used to construct mattresses for ﬁlls or embankments over soft soils.

The numbers
Companies that submitted product data chart lines were asked to provide
data determined through industry-accepted testing methods. Companies
signed a certificate of compliance verifying the accuracy of this data.

http://www.GMAnow.com

Geosynthetics December 2019/January 2020

Table of Contents for the Digital Edition of Geosynthetics December 2019/January 2020

Geosynthetics December 2019/January 2020 - Cover1
Geosynthetics December 2019/January 2020 - Cover2
Geosynthetics December 2019/January 2020 - 1
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Geosynthetics December 2019/January 2020 - Tab 1 front
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Geosynthetics December 2019/January 2020 - Tab 2 front
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Geosynthetics December 2019/January 2020 - Tab 3 front
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Geosynthetics December 2019/January 2020 - Tab 4 front
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Geosynthetics December 2019/January 2020 - Tab 5 front
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Geosynthetics December 2019/January 2020 - Tab 6 front
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Geosynthetics December 2019/January 2020 - Tab 7 front
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Geosynthetics December 2019/January 2020 - Tab 8 front
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Geosynthetics December 2019/January 2020 - Tab 9 front
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Geosynthetics December 2019/January 2020 - Cover3
Geosynthetics December 2019/January 2020 - Cover4
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