Nonwoven Geotextile

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Nonwoven Geotextile

Nonwoven geotextiles offer cost-effective filtration and drainage.

Nonwoven geotextiles for civil engineering offer excellent filtering and drainage functions and are more economical compared to natural filter materials such as sand and gravel.


They also provide good durability and chemical resistance, are lightweight and easy to install, and with minimal deformation after installation, can be applied to any type of structure.

Nonwoven Geotextile Characteristics

01
Filtration Function

The filtration function is to prevent the loss of fine soil particles
caused by water flow or hydraulic pressure, by being installed on slopes or foundations of embankments and other structures.

  • Prevents loss of fine soil at slopes and foundations during embankment construction
  • Prevents erosion of slopes during bank protection construction
  • Prevents loss of fine soil on slopes of rivers and drainage channels
  • Prevents inflow of fine soil into perforated pipes and drainage gravel layers
02
Separation Function

The separation function prevents the mixing of existing soil layers with high-quality soil layers,
preserving the quality of the soil (Retention) and resisting and absorbing localized stresses from external loads.

  • Separates soil layers in perforated pipes and drainage gravel layers
  • Separates soil layers in roads and absorbs localized impacts
  • Separates wide soil layers in playgrounds, racetracks, etc.
03
Drainage Function
  • Behind waterproof sheets in tunnels and underground utility conduits
  • Behind waterproof sheets in ponds and facilities preventing waste leakage
04
Reinforcement Function

By the tensile strength of geotextiles,
this function enhances the stability of soil structures. High tensile strength and strong friction with soil are required.

  • Protective function

Nonwoven Geotextile Physical Properties

Test Item Unit Test Method Gnw-20 Gnw-30 Gnw-40 Gnw-50 Gnw-70 Gnw-100
Weight g/㎡ KS K 2630 200 300 400 500 700 1,000
Tensile Strength
(Grab Test)
N ≥ 250 ≥ 500 ≥ 755 ≥ 1000 ≥ 1490 ≥ 2234
Elongation % ≥ 50
Permeability Coefficient cm/sec a × 10-1