Geosynthetics February/March 2020 - 17

flame had self-extinguished, the propagation of the flame was measured from the
edge of the metal frame. The criterion
for a passing test is that the flame must
self-extinguish before reaching 1-inch
(2.5-cm) from the frame in seven out
of the eight samples tested. The CEST
passed this flammability test.
Example CEST project installations
Numerous CEST system projec ts
have been installed throughout North
America, with a combined total area of
more than 3,000,000 square feet (280,000
m2). The CEST has been used to armor
dams and levees, steep downchutes,
channels, outfall structures and shorelines. Examples of these applications are
described in this section.

FIGURE 3 CEST turf yarns: Retained tensile strength vs. weathering time

Welding and testing equipment for the serious geosynthetics installer
Pro-Wedge VM-20 Wedge Welder
Over 6,000 units sold!

Pro-Tester High-Pull Tensiometer
for testing high-strength materials

with new Auto-Engage feature
(888) 324-WELD (9353) or 530 621-3200

Visit demtech.com or call for more product information.
www.GeosyntheticsMagazine.com

17


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Geosynthetics February/March 2020

Table of Contents for the Digital Edition of Geosynthetics February/March 2020

Geosynthetics February/March 2020 - Cover1
Geosynthetics February/March 2020 - Cover2
Geosynthetics February/March 2020 - 1
Geosynthetics February/March 2020 - 2
Geosynthetics February/March 2020 - 3
Geosynthetics February/March 2020 - 4
Geosynthetics February/March 2020 - 5
Geosynthetics February/March 2020 - 6
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Geosynthetics February/March 2020 - 49
Geosynthetics February/March 2020 - 50
Geosynthetics February/March 2020 - 51
Geosynthetics February/March 2020 - 52
Geosynthetics February/March 2020 - Cover3
Geosynthetics February/March 2020 - Cover4
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