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Spunbonded polyester geotextiles


Non-woven geotextiles are used as separation layers to prevent soils from mixing and also as filters for drainage structures. Thus, non-woven geotextiles protect geomembranes when used in impervious screens of disposal sites. Geotextile webs should be used in conformity with the requirements of normative technical documents in force related to provision of draining, separating, reinforcing, etc. interlinings in road structures, subfoundations, land and reclamation constructions, and also when installing water drains, running pipelines, building airdromes and constructing subsurface structures and landfills.

Description of parameter

Value for type

PFG-100

PFG-150

PFG-200

PFG-250

PFG-300

PFG-350

PFG-400

A

B

A

B

A

B

A

B

A

B

A

B

A

B

Nominal surface density,g/m2

100

150

200

250

300

250

400

Deviation of actual surface density from nominal, %

+/-10

+/-12

+/-10

+/-12

+/-10

+/-12

+/-10

+/-12

+/-10

+/-12

+/-10

+/-12

+/-10

+/-12

Nominal thickness, mm

1,2

1,3

1,6

2,0

2,4

2,9

3,0

Deviation of actual thickness from nominal, %

+/-15

+/-17

+/-15

+/-17

+/-15

+/-17

+/-15

+/-17

+/-15

+/-17

+/-15

+/-17

+/-15

+/-17

Breaking load, N/100 mm, min:


by length

420

350

800

650

1050

900

1200

1050

1500

1350

1700

1550

2050

1850

by width

320

280

620

550

820

750

900

830

1100

950

1300

1150

1450

1200

Elongation at break, %, min:


by length

40

38

40

38

40

38

40

38

40

38

40

38

40

38

by width

40

38

40

38

40

38

40

38

40

38

40

38

40

38

Geotextile Polyester Webs (Geotextiles) are spunbonded non-woven materials, which undergo further needling thereby acquiring higher physical-and-mechanical properties as compared to fibre-based non-woven materials. Geotextiles are characterized by high elastic modulus, high resistance to local mechanical damages, qualities very important for the process of laying the material. Geotextiles are chemically indifferent to acids and aggressive biological media, they are not subject to putrefaction or exposure to fungi and mold.

The web, after being laid down on and fastened to the ground surface, must be protected from sunlight (ultraviolet radiation).
Geotextiles can be installed practically in any weather conditions. The material precisely follows the base surface geometry and does not require any special fastenings.
If needed, the webs can be joined together using ultrasonic devices or by mechanically stitching them up (thermal splicing is not allowed).