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Geotextiles

Geotextiles

AAA Metal Suppliers offers a wide range of high quality geosynthetic products for engineering, industrial and domestic applications. These include non woven geotextiles, geotextile fabrics, slit & spilt film woven geotextiles, geosynthetic clay liners (GCL), reinforced geotextiles, sheet drain, strip filter drains, geogrids, geocells and erosion control materials.

 

Tensile Strength Testing

Our geotextiles used for industrial, civil engineering and construction are manufactured according to ISO 9001 quality standards to meet the strict mechanical and hydraulic requirements necessary to solve geotechnical and hydraulic engineering challenges. Each batch is tested and certified by the factory's modern textile testing laboratory. Production samples are regularly tested by independent laboratories.

Non-woven Geotextiles

We supply a range of both polypropylene and polyester geotextiles used for separation, filtration and reinforcement applications. These include: needle punched staple fibre geotextiles; continuous filament spunbonded geotextiles; stitch reinforced non woven fabrics and thermal embossed fabrics suitable for reusable carry bags with an exceptional degree of uniformity.

The company's modern equipment, ISO9001 accreditation, continuous development and investment programme delivers geotextiles manufactured to the highest international standards. Each batch laboratory tested and certified.

Our highly uniform non-woven fabrics are used in Australian coating factories to manufacture termite barriers, waterproof liners and high performance petrolatum wax tapes.

 

 

Continuous filament, spunbond polyester geotextiles

Produced according to ISO 9001 quality standards on Italian looms using all new polyester resin this continuous filament needle punched geotextile is used in separation, filtration and reinforcement applications. Heat bonding can be applied to further strengthen the fabric.

Typical Values
Polyester Spunbonded Geotextile AY12 AY14 AY24 AY29 AY34 AY44 AY64
Wide Strip Tensile Strength (kN/m) 9 10 14 18 21 28 40
Trapeozoidal tear Strength (N) 260 300 400 470 530 700 900
CBR Burst Strength (N) 1700 1950 2600 3100 3750 5150 7250
Grab Tensile Strength (N) 500 700 900 1100 1200 1600 2650
Pore Size Dry Sieving EOS mm 0.16 0.15 0.14 0.13 0.12 0.11 0.09
Flow Rate (100mm Head) l/m2/s 276 270 240 205 168 142 85

 

 

Staple fibre, needle-punched geotextiles

Our polyester and polypropylene staple fibre geotextiles are manufactured according to ISO 9001 quality standards needle punched from the top/bottom/top and heat bonded to achieve a strong and stable matrix.

Staple fibre, needle-punched geotextiles

These non wovens have excellent physical and hydraulic properties and offer a cost effective alternative for separation, filtration and protection applications. The abrasion resistance of staple fibre, non woven geotextiles is particularly beneficial when only gravel fills are available. A staple fibre geotextile delivers high through flow rates and excellent drainage performance while preventing fines migration. Their high elongation properties withstand severe installation damage and they are chemically resistant to naturally occurring soil environments.

 

 

Paving Fabrics

Polyester, non woven, continuous filament, fibre-fired paving fabrics significantly reduce reflective cracking when used in pavements on concrete roads, for repairing existing road surfaces and for the construction of new roads. When saturated with bitumen these geotextiles provide stress relief, waterproofing and reduce reflective cracking in new and existing paved roads.

Typical Values
Mass+/-
6%
(g/m2)

Thickness
(mm)>

Tensile
Strength
(KN/m)
Grab
Elongation
(%)
Trapezoidal
Tear
Strength
(KN)
CBR (KN) Bitumen
Saturation
(Litres/m2)
140 >1.2 >7.0 50-80 >0.19 >1.30 >1.0
160 >1.35 >8.0 50-80 >0.23 >1.50 >1.1
180 >1.5 >9.0 50-80 >0.26 >1.70 >1.2
200 >1.6 >10.0 50-80 >0.28 >1.90 >1.4

Advantages :

  • Manufactured to ISO9001 standards using new polyester spun bonded continuous fibres, mechanically bonded by needle punching and fibre-fired.
  • High melt temperatures. These pavement fabrics do not melt at temperatures below 250oC.
  • The fibre-firing process enhances the stability of the fabric when hot bitumens/asphalt are applied. When exposed to hydrocarbons present in bitumen, the fabric is very stable and does not shrink or distort.
  • Very strong with high tear and puncture resistance. Spunbonded, needle punched technology results in higher tensile strengths for the same weight of fabric.
  • Minimal surface variation allows the paving fabric to rapidly absorb the applied bitumen and form a tight barrier with the road surface.
  • Ease of use. Having one side of the material fibre-fired ensures that the paving fabric will not be lifted by vehicle tyres. Yuan Da's own manufacturing process guarantees the quality of the material when it is laid.

 

Reinforced Stitched Non-woven Polyester Geotextile

High strength reinforced stitched non-woven polyester fabrics are both lightweight and offer exceptional strength. They are custom manufactured to meet specialist requirements such as stabilising coastal areas. These fabrics are very cost competitive compared to alternative fabrics and offer superior resistance to attacks by vandals.

Reinforced Stitched Non-woven Polyester Geotextile
Examples of Reinforced Stitched Polyester Non-woven Fabrics
Property Unit 408 Grade No. 1 No 4 No. 5
Fabric Weight g/m2 408 1175 810 565
Thickness mm 2.0 2.9 2.5 2.0
Tensile Strength (longitude) kN/m 70 235 150 81.4
Grab Elongation (longitude) % 13.3 15.2 14.8 14.6
Tensile Strength (latitude) kN/m 105 220 155 87
Grab Elongation (latitude) % 13.4 15.8 15.1 14.4
Tear Strength (longitude) N 950 3240 2150 1250
Tear Strength (latitude) N 900 3350 2480 1320
CBR Strength N 6210 14500 9560 6550
Permeability K20 cm/s 0.403 0.05 0.05 0.05
Equivalent Aperture O95 mm 0.2 0.1 0.1 0.1
Roll Width m 5.3 5.3 5.3 5.3
Roll Length m 100 100 100 100

 

 

Heavy Duty Reinforced Stitched Non-woven Polyester Underlay

Polyester Reinforced Non Woven Underlay

This heavy-duty, high tensile reinforced stitched non-woven polyester offers superior protection for liners from abrasion and prevents long term damage caused by indentation from stony soils under high static loads. The underlay consists of two layers of non-woven polyester fabric, needle-punched to an inner layer of reinforced stitched polyester fibres.

Traditionally subgrades had to be well compacted and offer an even grade, free from sticks, stones and protrusions to prevent any damage to the liner. This heavy duty reinforced stitched non-woven polyester underlay is an ideal rock armour underlays for stormwater outfalls, marine scour pads, pond and dam geo-textile underlays, woodchip underlay pads and separation layers. It also delivers improved performance when welding HDPE on undulating surfaces.

Specifications
Item Unit Value
Fabric Weight g/m2 1000
Tensile Strength - Longitude KN/m 75
Tensile Strength - Latitude KN/m 95
CBR Strength N 8800
Width m 5.2

 

 

Non Woven Fabrics for Coating Applications

Non Woven Fabrics for Coating Applications

Our polyester and polypropylene non woven fabrics are ideal for a variety coating applications including waterproof liners and termite barriers. For specialist coating applications we supply highly uniform stitch-bonded non woven geotextiles.

 

 

High Strength Polyester Woven Fabrics

High Strength Woven Fabrics

High strength woven geotextiles are available for subgrade separation, reinforcement and applications such as reinforcing soils where extremely high tensile strength with low elongation is required. High strength woven polyester geotextiles are used in a wide range of projects including:

  • Road & rail embankments
  • Reinforced earth structures on poor foundations
  • Slope stabilization
  • Piled foundations
Technical Data
High Strength Woven Polyester
Weight (g/m2) 140 200 260 320 390 460 530 600 680 760 950
Rupture Tensile Strength (warp)
(KN/m) =
35 50 65 80 100 120 140 160 180 200 250
Rupture Tensile Strength (weft)
(KN/m) =
24.5 35 45.5 56 70 84 98 112 126 140 175
Rupture Elongation (%) = Warp 35, Weft 30
CBR Punched Strength (KN) = 2.0 4.0 6.0 8.0 10.5 13.0 15.5 18.0 20.5 23.0 28.0
Vertical Permittivity (cm/s) K x (10-2 ~10-5)
Apparent Opening Size O90(O95) (mm) 0.07~0.5
Tear Strength (KN) = 0.5 0.8 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 3.0

Polypropylene slit Woven Geotextiles

Custom made ’s slit woven geotextiles are manufactured from high quality polypropylene using sulzer or circular looms . These geotextiles develop strength at relatively low strains. A range of slit woven geotextiles is available to a maximum width of 6 metres.

Sulzer loom weaving polyproplylene geotextiles Circular looms weaving polyproplylene slit woven geotextile
Sulzer loom weaving polyproplylene geotextiles Circular looms weaving polyproplylene slit woven geotextile

 

 

Needle Punched Composite Non-woven and Woven Geotextiles

Needle punched geocomposites are made from UV resistant woven fabrics and a non-woven fabric. Needle punched geocomposites can be used:

  • As reinforced silt barriers to control turbidity and silt at its source and to contain silt runoff into streams.
  • For floating silt curtains to effectively control pollution during dredging operations in low current and wave situations.

Geotubes made from needle punched geocomposite in use on the Yangste River
Geotubes made from needle punched geocomposite in use on the Yangste River