Table 2. Geotextiles tested in pretests at Fort McCoy for rapid stabilization of
thawing soils.
Product name/
construction/mass
AOS
Wide width (WW)
per unit area
(mm)/
tensile strength
Puncture
Burst
(g/m2)
sieve no.
Typical uses
kN/m (lb/in.)
kN (lb)
kPa (psi)
Trevira 011/550/
NW PET/
0.15/#100
P, R, S
36.0 (205.5)
0.867 (195)
5382 (780)
541
28.8 (164.7)
Polyfelt TS1000/
NW PP/
0.15/#100
P, R, S
24.5 (140)/
0.71 (160)
3795 (550)
540
same in both
Linq GTF 300/
0.60/#30
S/S
31.5 (180)
0.80 (115)
4139 (600)
W PP (slit film)/
200
Polyrock (PP with
> 0.30
R
100 (570)
Not available
Not available
PET reinforcement)
365
NW = nonwoven, W = woven, PP= polypropylene, PET= polyester
P = protection, R = reinforcement, S = separation, S/S = separation and stabilization
Table 3. Geogrid and double-sided geonet tested in pretests at Fort McCoy for rapid stabiliza-
tion of thawing soils.
Tensile
WW** tensile
strength
Polymer type
Mass/unit area
Typical
Aperture size
strength
@ 5% strain
g/m2 (oz/yd2)
Product
and coating
application
mm (in.)
kN/m (lb/ft)
kN/m (lb/ft)
Contech 553
Reinforcement
MD*: 46 (1.8)
XD†: 64 (2.5)
(Tensar
PP
247 (7.3)
16
9.9 (678)
BX 1300)
(1096)
Tensar 1605
HDPE
2000 (60)
MD: 15 (0.6)
10
with geotextile)
(geonet core)
(685), for
Double-sided
(NW PP with
XD: 7 (0.3)
geonet only
Not available
270 g/m2
geonet
geotextile on
geonet core)
HDPE
=
high density polyethelyne, PP = polypropylene
* MD
=
machine direction
† XD
=
cross-machine direction
** WW
=
wide width
stand tracked vehicle travel. The dimensions of
Wood mats
the mats are 3.2 m (10.5 ft) long and 1.6 m (5.25 ft)
Two types of wood mat were tested. One was
wide. The mats weigh approximately 1000 kg (2200
similar in design to a shipping pallet. These pal-
lb) each and were placed by dragging or towing,
lets were constructed on site. They were con-
or by lifting with the Heavy Expanded Mobility
structed primarily of soft wood, were relatively
Tactical Truck (HEMTT) crane. Tire mats (model
lightweight, and could be maneuvered into place
TMC 410-12) used were provided by Terra Mat
manually. The second type of wood mat was on
Corp.
loan from Uni-Mat International, Inc. The Uni-
4
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