Nonwoven Continuous Filament Geotextiles

Nonwoven continuous filament

Nonwoven continuous filament

Our nonwoven continuous filament geotextiles are made from 100% polyester fibres, mechanically bonded by needle punching. Heat bonding can also be applied to further strengthen the geotech fabric. Nonwoven polyester continuous filament geotextiles have a high melting point and UV resistance. They provide an effective and economical solution for filtration, separation, drainage, liner protection and reinforcement applications.

nonwoven continuous filament geotextiles

High strength nonwoven geotextile

Applications

Filtration

The continuous filament structure of nonwoven geotextiles permits water to pass through while preventing soil migration. Spunbonded polyester nonwoven geotextiles are more cost effective than natural filters when used for revetment and subsoil drainage applications.

Separation

Nonwoven continuous filament geo fabrics are suitable for separating two layers of soil with different physical properties. Separating soft ground from coarse fill material reduces the amount of fill required and increases the life span of civil engineering structures such as roads and railways. They are frequently used in railway construction to separate the capping layer from the ballast layer.

Drainage

Nonwoven geotech fabrics improve the drainage performance of subsoil drainage systems in roads, railways, sports fields and behind retaining walls. They are ideal for draining or venting soils, such as the gas vent layer in a landfill cap.

Liner protection

Needle free nonwoven geotextiles are ideal for protecting HDPE liners from punctures and excessive deformation. The cushioning relieves stress and minimises the chance of contained harmful liquids or landfill waste leaking.

Reinforcement

The strength offered by nonwoven continuous fibre geotextiles can improve the load bearing capacity of a soil’s structure, such as the reinforcement of a retaining wall.

Roll sizes and grades

Our nonwoven polyester spunbonded geofabrics are available in a range of grades from 150gsm to 600gsm. The 6m wide rolls minimizes wastage due to overlaps.

Specifications Test Method Unit CT150N CT200N CT250N CT300N CT350N
Index Properties
Colour White or Black
Ultimate Tensile Strength, MD ASTM D04595 kn/m 11 14 17 19 24
Ultimate Tensile Strength, TD ASTM D04595 kn/m 10 12 15 17 21
Tensile Elongation ASTM D04595 % 45 50 50 50 60
Grab Tensile Strength, MD ASTM D04632 N 600 850 1000 1250 1450
Grab Tensile Strength, TD ASTM D04632 N 550 700 900 1100 1250
Grab Elongation ASTM D04632 % 45 50 50 50 60
Trapezoid Tear Strength, MD ASTM D04533 N 300 350 430 490 540
Trapezoid Tear Strength, TD ASTM D04533 N 270 330 400 450 510
CBR Puncture Strength ASTM D06241 N 1800 2300 2700 3200 3600
Apparent Opening Size O90 ASTM D04751 mm 0.11 0.11 0.10 0.09 0.09
Water Flow Q100 ASTM D04491 L/m2/g 235 220 200 185 165
U.V. Resistance ASTM D04355 % @ 500h 70 70 70 70 70
Weight ASTM D05261 g/m2 150 200 250 300 350
Thickness ASTM D05199 mm 1.8 2.3 2.9 3.2 3.6
Roll Width m 6 6 6 6 6
Roll Length m 200 150 100 100 100
Specifications Test Method Unit CT400N CT450N CT500N CT600N
Index Properties
Colour White or Black
Ultimete Tensile Strength, MD ASTM D04595 kn/m 27 30 37 41
Ultimete Tensile Strength, TD ASTM D04595 kn/m 25 28 34 38
Tensile Elongation ASTM D04595 % 60 60 60 60
Grab Tensile Strength, MD ASTM D04632 N 1700 1900 2100 2500
Grab Tensile Strength, TD ASTM D04632 N 1450 1600 1800 2150
Grab Elongation ASTM D04632 % 60 60 60 60
Trapezoid Tear Strength, MD ASTM D04533 N 630 710 770 920
Trapezoid Tear Strength, TD ASTM D04533 N 610 690 750 900
CBR Puncture Strength ASTM D06241 N 4400 4800 5800 6900
Apparent Opening Size O90 ASTM D04751 mm 0.08 0.08 0.08 0.08
Water Flow Q100 ASTM D04491 L/m2/g 125 110 90 80
U.V. Resistance ASTM D04355 % @ 500h 70 70 70 70
Weight ASTM D05261 g/m2 400 450 500 600
Thickness ASTM D05199 mm 3.9 4.2 4.4 4.8
Roll Width m 6 6 6 6
Roll Length m 80 80 50 50

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