Continuous-filament structure
The continuous-filament needle-punched structure provides a permeable geotextile layer for filtration, separation and drainage applications.
Polyester Continuous-Filament Needle-Punched Nonwoven Geotextile
Continuous-filament polyester geotextile for filtration, separation, drainage and reinforcement in civil and environmental engineering applications.
Produced from continuous PET filaments through spinning, web formation and needle-punching processes, this nonwoven geotextile provides mechanical and hydraulic functions for infrastructure and ground-engineering projects.
Product Overview
0104
Polyester continuous-filament needle-punched nonwoven geotextile is a permeable geosynthetic manufactured from continuous PET filaments. Its three-dimensional fibrous structure is designed to provide filtration, separation, drainage and reinforcement functions within soil and aggregate systems.
Typical applications include water-conservancy and hydropower projects, environmental engineering, highways, railways, dams, coastal works and mining-related civil works.
Product facts
- Material
- PET (polyester)
- Structure
- Continuous-filament needle-punched nonwoven
- Mass per unit area
- 100–1000 g/m²
- Width
- 4–7 m
- Primary functions
- Filtration, separation, drainage and reinforcement
- Applicable standards
- GB/T 17639-2008; JT/T 519-2004
Key Features
Mechanical performance
Breaking strength, CBR puncture strength and tearing-strength requirements are defined across the available strength grades.
Hydraulic performance
Equivalent opening size and vertical-permeability requirements support filtration and drainage functions.
Dimensional performance
Thickness and width-deviation requirements are specified according to the selected nominal breaking-strength grade.
Engineering versatility
Suitable for civil works including water conservancy, transportation infrastructure, dams, coastal works and selected mining-related applications.
Technical Specifications
Primary technical standard
GB/T 17639-2008
Additional standard
JT/T 519-2004
Technical data reference: customer-provided Polyester Continuous-Filament Geotextile technical performance table under GB/T 17639-2008.
| Property | Nominal breaking strength — kN/m | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4.5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | |
| MD/CD breaking strength — kN/m | ≥ 4.5 | ≥ 7.5 | ≥ 10.0 | ≥ 15.0 | ≥ 20.0 | ≥ 25.0 | ≥ 30.0 | ≥ 40.0 | ≥ 50.0 |
| Elongation corresponding to nominal breaking strength, MD/CD — % | 40–80 | 40–80 | 40–80 | 40–80 | 40–80 | 40–80 | 40–80 | 40–80 | 40–80 |
| CBR puncture strength — kN | ≥ 0.8 | ≥ 1.6 | ≥ 1.9 | ≥ 2.9 | ≥ 3.9 | ≥ 5.3 | ≥ 6.4 | ≥ 7.9 | ≥ 8.5 |
| MD/CD tearing strength — kN | ≥ 0.14 | ≥ 0.21 | ≥ 0.28 | ≥ 0.42 | ≥ 0.56 | ≥ 0.70 | ≥ 0.82 | ≥ 1.10 | ≥ 1.25 |
| Property | Requirement |
|---|---|
| Equivalent opening size O90 (O95) — mm | 0.05–0.20 |
| Vertical permeability coefficient — cm/s | K × (10⁻¹ – 10⁻³) K = 1.0–9.9 |
| Property | Nominal breaking strength — kN/m | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4.5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | |
| Mass per unit area deviation — % | −5 | −5 | −5 | −5 | −5 | −5 | −5 | −5 | −5 |
| Thickness — mm | ≥ 0.8 | ≥ 1.2 | ≥ 1.6 | ≥ 2.2 | ≥ 2.8 | ≥ 3.4 | ≥ 4.2 | ≥ 5.6 | ≥ 6.8 |
| Width deviation — % | −0.5 | −0.5 | −0.5 | −0.5 | −0.5 | −0.5 | −0.5 | −0.5 | −0.5 |
Technical Notes
- The technical specification grades in this table are based on nominal breaking strength and should not be confused with product mass per unit area.
- Product mass per unit area is available within the stated 100–1000 g/m² production range, while the technical table classifies performance by nominal breaking strength.
Discuss your product requirements
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Useful information to provide
- Application
- Required mass per unit area
- Required breaking strength
- Required width
- Quantity
- Project location
- Delivery destination
- Applicable standard or project specification