DuraForce® Non-Woven AS Series Geotextile 

DuraForce® non-woven geotextiles are a premium range of needle punched engineering fabrics for, drainage, filtration, separation, reinforcement, and protection.

ABOUT

DuraForce® AS series geotextiles are manufactured and tested to exacting quality standards, and rated according to the NZTA F/7 specification for geotextiles. DuraForce® is available in a range of grades depending on the particular engineering application required.

There is a very broad differentiation of geotextiles based on the manufacturing processes involved. Frequently there will be a secondary benefit required of the geotextile as well as the primary function, e.g. drainage as the primary function and separation as the secondary benefit.

Non-woven needle punched geotextiles are manufactured from the extrusion of fibers which are then laid down on a manufacturing “bed”. They are then needle punched to entangle the fibers resulting in a porous yet dimensionally stable product. Because of this manufacturing process, non-woven geotextiles are generally best used in applications of drainage, filtration and protection.

 

BENEFITS AND FEATURES

Cirtex Grade
Filtration Class
Strength Class

AS240

1 – 4

A

AS280

1 – 4

B

AS410

1 – 4

C

AS440

1 – 4

D

AS640

1 – 4

E

AS680

1 – 4

Exceeds all strength classes

Technical Data

CODE
GRADE
ROLL SIZE
AREA

76017

AS240

1.9m x 50m

95m²

76018

AS240

3.9m x 50m

195m²

76033

AS240

4m x 100m

400m²

76339

AS240 EP

6m x 100m

600m²

76021

AS280

1.9m x 50m

95m²

76022

AS280

3.9m x 50m

195m²

76045

AS280

4m x 100m

400m²

76342

AS280 EP

6m x 100m

600m²

76023

AS410

1.9m x 50m

95m²

76024

AS410

3.9m x 50m

195m²

76048

AS410

4m x 100m

400m²

76345

AS410 EP

6m x 100m

600m²

76050

AS440

4m x 100m

400m²

76539

AS440

6m x 100m

600m²

76082

AS640

4m x 75m

300m²

76111

AS680

5.4m x 50m

270m²

FAQs

What are the main uses?

How do I compare it with other brands?

Why do some geotextiles seem thinner than others of the same grade?

Why should I use geotextile?

Should I overlap the geotextile when I lay it?

Is it UV stable?

Does the colour make any difference?

How much do I need to overlap the geotextile?

Won't Weedmat do the job just as well?

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Related Case Studies

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Pressure Main 11 – SecuGrid® 30/30 Q1

10 Feb 2016

Pressure Main 11, a 1200mm diameter sewer main which was replaced by Downer NZ following the Christchurch Earthquakes. This project presented many challenges for the designers as it passed through highly liquefiable soils and required thrust blocks at each of the pipe bends. Previous experience with concrete thrust blocks failing in the earthquakes meant the engineers at SCIRT needed to utilise a GeoGrid Reinforced Soil thrust block. Cirtex submitted a concept design using a high strength polyester GeoGrid which was chosen by the designers.

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Auckland Airport Runway – DuraForce® AS410 Non-Woven Geotextile

10 Feb 2016

Duraforce® AS410 Non Woven GeoTextile was used on this major infrastructure project at Auckland International Airport. Contractors Fulton Hogan were excavating for this high load pavement area and uncovered a peat swamp, complete with large partly rotten tree trunks. Geotech engineers from Beca called to the site judged that the swamp was too deep to be economically removed entirely and recommended that only the rotting trees be removed and a non-woven geotextile complying with TNZ F7 strength class C be laid over the swamp, followed by 500mm of hard fill.

Read more