(c) 2001, 2002 Hyperactive Technology
© 2001, 2002 Hyperactive
Technology
Geotextiles
Synthetic Industries
Introduction
Geotextile Supplies and Engineering (G.S.E.) is the Australian agent for Synthetic Industries' full range of geosynthetic products and for the range of polyester non woven fabrics manufactured by Johns Manville. Synthetic Industries is one of the worlds largest manufacturer of textiles and fibres and produces the broadest range of geosynthetic products in the industry today.

Synthetic Industries are an ISO 9002 certified manufacturer and have had over 13 years experience in the development and production of quality geotextile products. Johns Manville manufacture polyester, non woven, continuous filament geotextiles from one of the newest spunbond factories in the world.
Nonwoven Geotextiles
Synthetic Industries' nonwoven geotextiles are made from polypropylene and are manufactured using needle punched, staple fibre technology. Polypropylene is a very durable polymer which has excellent chemical and biological resistance, with the addition of UV inhibitors it becomes the ideal fibre for producing geotextiles.

The needle punched, staple fibre manufacturing technique produces geotextiles which exhibit high strengths, superior puncture resistance and greater survivability, which make them extremely resistant to installation stresses.

Johns Manville polyester geotextiles are manufactured uning needle punched, continuous filament, technology. Polyester is especially important when geotextiles are used as Paving Fabrics.
Woven Geotextiles
G.S.E. 's Woven geotextiles are manufactured by extruding and slitting a polypropylene film, then weaving these individual yarns to form the fabric. They are characterised by high tensile strengths at low elongation (high tensile modulus), and are designed for separation, stabilisation and reinforcement applications.
Geotextile Applications
Grade Subsoil Drains

Gabions
& Mattresses

 Roadway Separation Revetments Paving Fabrics
CBR<3
Particle Size		 CBR>3
Particle Size		 Rock
Size		 R
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Size
<50
 P
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Size
<100
 G
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s		 M
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s		 50 100 300 600 50 100 300 600 <
100		 <
300		 <
500		 <
1000
GEOTEX311
GSENW750
GEOTEX401
GSENW1000
GSEW1000
GEOTEX501
GSENW2000
GSEW2000
GEOTEX801
GSENW3000
GEOTEX861
GSENW4000
GEOTEX1601
GSENW5000
Non Woven Geotextiles
  Non Woven, Needle Punched,
Polyester, Continuous Filament
Test Method Test Reference GSE
500		 GSE
750		 GSE
1000		 GSE
2000		 GSE
2500		 GSE
3000		 GSE
4000		 GSE
5000
Wide Trip
( kN/m )		 AS3706-2 6 7.5 9.5 12.5 17 19 26 38
Trapezoidal Tear
( N )		 AS3706-3 210 215 250 280 390 485 520 930
CBR Burst
( kN )		 AS3706.4 1.1 1.4 1.7 2.3 3.2 3.5 4.4 6.8
G Rating QMRD 850 1100 1350 1700 2300 2700 3500 5600
Grab Tensile
( N )		 AS2001.2.3 390 490 600 830 1100 1250 1600 2800
Pore Size Wet Sieve
Microns 		NFG38017 165 150 120 110 100 80 80 60
Flow Rate
( l/m2/s ) 		AS3706.9 300 250 180 160 130 110 80 65
Permeability Coefficient 10-4m/s
@2kPa 		35 30 30 30 30 30 25 25
Specification sheet of typical mechanical and indicative hydraulic values. Product specifications are subject to change without notice as part of ongoing development. 2nd September, 1999
Woven Geotextiles
  Woven PP
Test Method Test Reference GSE
W1000		 GSE
W2000		 GSE
W4000		 GSE
W5000
Wide Trip
( kN/m )		 AS3706-2 32 54/42
md/cmd 		N/A N/A
Trapezoidal Tear
( N )		 AS3706-3 440 650/520
md/cmd 		N/A N/A
CBR Burst
( kN )		 AS3706.4 3.9 7.6 N/A N/A
G Rating QMRD 3800 8000 N/A N/A
Grab Tensile
( N )		 AS2001.2.3 1100 2300/2000
md/cmd 		N/A N/A
Specification sheet of typical mechanical and indicative hydraulic values. Product specifications are subject to change without notice as part of ongoing development. 2nd September, 1999
"GEOTEX" Geotextiles
  Non Woven, Needle-Punched,
polypropylene, Staple Fibre and Geotextiles
Test Method Test Reference 311 401 451 501 601 701 801 861 1001 1601
Wide Trip
( kN/m )		 AS3706-2 7 9 10.5 12.5 15 16 17.5 19 21 31
Trapezoidal Tear
( N )		 AS3706-3 175 240 265 330 350 400 445 500 575 870
CBR Burst
( kN )		 AS3706.4 1555 1845 2110 2445 2670 3445 3780 4005 4450 7340
G Rating QMRD >
1000		 >
1400		 >
1550		 N/A >
2200		 >
2800		 >
3000		 >
3600		 >
4200		 >
7400
Grab Tensile
( N )		 AS2001.2.3 420 555 620 755 775 1000 1090 1290 1445 1825
Pore Size
Microns 		ASTM D4751 150 150 150 150 150 150 150 150 106 106
Flow Rate
( l/m2/s ) 		AS3706.9 380 350 290 N/A 260 220 220 220 160 100
Permeability Coefficient 10-4m/s
@2kPa 		27 29 26 N/A 27 38 45 45 45 43
Specification sheet of typical mechanical and indicative hydraulic values. GEOTEX geotextiles are manufactured by Synthetic Industries in one of the largest non-woven manufacturing plants in the world. They are under a quality system conforming to ISO9002. Product specifications are subject to change without notice as part of ongoing development. 02/09/1999
 
GEOPAVE Polyester Paving Geotextiles
GEOPAVE paving fabrics are manufactured specially for use in bituminous paving applications. They are manufactured from 100% continuous polyester filaments. Polyester is stable up to temperatures exceeding 250 degrees centigrade and is, therefore, unaffected by hot bitumen or asphalt.

In addition, GEOPAVE is passed through hot ovens, raised to 200 degrees centigrade which 'pre shrinks' the fabric, enhancing its stability when hot bitumens/asphalt is applied. No other paving fabric offers this security.

The inclusion of GEOPAVE Paving Fabrics in a sprayed seal or an asphaltic surface provides a number of benefits.

In both applications, the fabrics are used to provide a reservior for bitumen to provide a water resistant layer, virtually eliminating surface water infiltration into the pavement underneath.

In addition, the fabric, having tensile strength and flexibility, provides a stress relieving interlayer which can absorb pavement movements without causing cracking at the surface.
G.S.E. HS Woven Polyester Fabrics
The G.S.E. HS range of woven polyester fabrics are used primarily for high strength reinforcement applications including:
  • Basal reinforement of embankments
  • Lagoon closures
  • Reinforced, steep slopes
  • Reinforced soil walls

The HS range of woven products are manufactured in Australia using high tenacity, polyester filaments. Polyester has excellent resistance to creep and is able to accommodate long - term loads for design lives exceeding 100 years.

The HS range of geotextile includes products 'of the shelf' but also products manufactured on a bespoke service. This is paticularly beneficial for embankment reinforcement applications where the design strength can be made to order. Design strengths currently range from 90kN/m to >600kN/m.