40, 50, 60, G.S.M.
Fleece Nonwoven Geotxtiles
DESCRIPTION
40, 50, 60, G.S.M Fleece made from staple fibers that are mechanically bonded by a needle punching process to produce a
dimensionally stable network. The fibers used are 100% virgin white polyester, ultra-violet resistant with 2560C melting point.
USES
40, 50, 60, G.S.M Fleece are used in road and railway soil stabilization, waterways and seashore erosion control, asphalt pavement
overlay crack relief, subsurface drainage system, waterproofing membrane protection, landfill, landscaping etc.
• Separation between two dissimilar materials so that the integrity and functioning of both materials can remain intact or be
improved.
• Filtration by permitting water flow across the plane of the geotextile while retaining fine soil particles.
• Transmission by providing water drainage and gas venting within the plane of the geotextile.
• Sealing when impregnated with asphalt or resin to act as a moisture barrier.
•Stress Absorption in pavement overlay when impregnated with asphalt.
•Protection of geomembrane against puncture by absorbing the point stresses.
OUTSTANDING FEATURES
1. Hydraulic properties include opening size, permeability and transmissivity. For optimum filtration, the geotextile required
to meet two seemingly conflicting requirements: the geotextile pore spaces must be small enough to retain soil particles
while also being large enough to permit relatively unimpeded water flow. 40, 50, 60, G.S.M Fleece meet this requirement and
have exceptionally high filtration properties due to the needle punching process, which produces a large number of small
holes in the fabric structure. This process provides 40, 50, 60, G.S.M Fleece with superior filtration properties, offering a
unique combination of high permeability that allows unimpeded flow of water across the fabric whilst maintaining a low
opening size to retain the finest soil particles without becoming clogged over time.
2. Survivability Properties refer to the ability of the geoteatile to withstand the installation stresses and to perform as
intended in the design. The survivability properties include puncture and Mullen burst strengths. 40, 50, 60, G.S.M Fleece due
to their high elongation property, are inherently more resistant to installation damage than stiff low elongation fabrics.
The high elongation property of 40, 50, 60, G.S.M Fleece allows the fabric to adapt to the uneven contour of the fabric to
adapt to the uneven contour of the matrix and absorb the installation stresses, unlike stiff geotextile fabrics with low
elongation that tend to carry the installation loads and hence are requires to meet a set of higher strength values compared
to high elongation geotextiles. The geotextile fabric, in the tensile, grab and trapezoidal tear tests, is stressed in a linear
direction along its plane and hence these index test values need necessarily be considered in conjunction with elongation
values.
40, 50, 60, G.S.M Fleece is non-biodegradable, and have excellent resistance to chemicals and salts normally present in the
soil.
EXPOSURE TO SUNLIGHT:
Test Method AASHTO Specification 40, 50, 60, G.S.M Fleece
ASTM-D-4355 >50% strength at 500 hours >60% strength at 500 hours
40, 50, 60, G.S.M Fleece is delivered in black HDPE wrap for protection against ultra-violet rays during transit and storage.
PRODUCT RANGE
Besides 40, 50, 60, G.S.M Fleece standard geotextiles products indicated in this data sheet, a variety of grades between
40g/m2 and 1200 g/m2 are also available in polyester and thermally bonded as well as polypropylene based geotextiles. Data
sheets of other 40, 50, 60, G.S.M Fleece products are available upon request.
Properties Test Method Unit B10 B12 B14 B18 B20 B23 B25 B28 B30 B35 B40 B45 B50 B60 B800 B1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0
P 2
Thickness (2kN/m ) ASTM-D-5199 Mm 1.4 1.6 1.8 2.2 2.5 2.6 2.7 3 3.2 3.5 3.8 4.2 4.7 5.2 7 8.5
H
Y
S 2
Mass Per Unit Area ASTM-D-5261 g/m 100 120 140 180 200 230 250 280 300 350 400 450 500 600 800 1000
I
C
A Roll Size (W x L) m 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 x50 3 x50
L x100 x100 x100 x100 x100 x100 x100 x100 x100 x100 x100 x100 x100 x100
CBR Puncture EN-ISO-12236 N 1000 1200 1400 1800 2000 2300 2500 2800 3200 3500 4000 4500 5100 6100 8100 10000
F Puncture Strength ASTM-D-4833 N 180 220 260 330 420 470 550 690 700 850 950 1100 1200 1500 2000 2400
U
N Dynamic Puncture EN-918 Mm 30 26 22 19 18 14 14 12 9 8 7 5 0 0 0
C
F Mullen Burst ASTM-D-3786 PSI 130 160 185 290 300 300 360 400 450 530 630 700 770 900 1100 1300
I
O Elongation at 30% EN-29073-3 % 30 30 30 30 30 30 30 30 30 30 35 35 35 35 35
N
Load
A
L 2
Flow Rate (10cm BS 6906 Part l/m 240 200 190 120 100 95 95 90 85 75 55 50 45 40 35 30
Head) 3 /s
Permeability ASTM-D-4491 Cm/ 0.35 0.32 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
s
Transmissivity ASTM-D-4716 l/m/ 100 120 140 160 170 185 190 200 200 220 240 300 340 380 420
2
(2kN/m ) h
Opening Size (095) ASTM-D-4751 Micr 106 106 106 75 75 75 75 75 75 75 75 75 75 75 75 75
on
Tensil-5cm Strip EN-29073-3 N 200 280 340 630 700 770 900 1100 1200 1500 1800 2000 2100 2800 3100 3800
(CD)
Tensil-5cm Strip EN-29073-3 N 170 235 280 380 420 460 520 600 700 820 850 1050 1100 1300 1700 2000
(MD)
Minimum EN-29073-3 % 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60
Elongation
I Grab Strength (CD) ASTM-D-4632 N 215 290 340 520 700 770 900 1100 1180 1500 1750 2000 2100 3000 3200 3500
N
D
E Grab Strength ASTM-D-4632 N 190 250 300 400 470 520 600 700 800 930 1000 1150 1200 1500 1800 2100
X
(MD)
Min. Grab ASTM-D-4632 % 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70
Elongation
Trapezoidal Tear ASTM-D-4633 N 110 140 160 250 340 370 430 500 530 580 900 900 1000 1200 1500 1800
(CD)
