Pure PP 400g Polypropylene Nonwoven Geotextile Separation Layer Subgrade Aggregate Base For Road Construction
Service Life for Polypropylene Nonwoven Geotextile:
The service life of polypropylene geotextiles is significantly affected by the environment. The core conclusion is: 5-10 years in normal environments, extended to 15-20 years with proper protection (such as burial in the ground and protection from sunlight). Exposure to sunlight only lasts 1-3 years.
Key Influencing Factors: UV Light: Polypropylene is sensitive to UV rays. When exposed to sunlight without protection, UV rays accelerate fiber aging and degradation.
Operating Environment: Longer lifespan is significantly extended when buried in soil, underwater, or protected by an outer layer (such as a geomembrane or concrete). Acidic, alkaline, high-temperature, and chemically corrosive environments shorten lifespan.
Product Quality: Geotextiles made from high-quality raw materials (high-purity polypropylene) and standardized production offer enhanced aging resistance and a longer lifespan.
Key measures to extend service life:
Avoid prolonged exposure to the open air. Cover with soil, gravel, or other protective layers promptly after construction.
For special environments (such as saline-alkali land and around chemical plants), use specialized polypropylene geotextiles with anti-aging agents and corrosion-resistant modifications.
During construction, avoid scratches and tears from sharp objects to minimize accelerated local aging caused by material damage.
400g Polypropylene Non Woven Geotextile Application & Function :
- Road & Railway Construction:
Separation layer between subgrade and aggregate base
Reinforcement for weak subsoils
Prevention of intermixing between soil layers - Drainage Systems:
Filtration layer in drainage applications
Protection for geomembranes
Landfill leachate collection systems - Erosion Control:
Slope stabilization
Riverbank and coastal protection
Land reclamation projects - Other Applications:
Foundation reinforcement
Retaining wall backfill
Pond and canal lining protection
Staple fibers needle punched non woven geotextile Parameters
| No. | Item | Parameters |
| Nominal strength(kN/m) | 7 | 9 | 11 | 15 | 19 | 22 | 25 | 28 | 34 | 40 | 45 |
| 1 | Breaking strength≥(kN/m) | 7 | 9 | 11 | 15 | 19 | 22 | 25 | 28 | 34 | 40 | 45 |
| 2 | Elongation at break(%) | 40——100 |
| 3 | Tearing strength≥(kN) | 0.21 | 0.25 | 0.31 | 0.40 | 0.50 | 0.58 | 0.67 | 0.75 | 0.85 | 1.00 | 1.30 |
| 4 | CBR puncture resistance ≥(kN) | 1.1 | 1.4 | 1.7 | 2.3 | 2.90 | 3.3 | 3.8 | 4.2 | 5.4 | 6.2 | 7.8 |
| 5 | Strong Grip≥(kN) | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 | 1.25 | 1.5 | 1.7 | 2.15 | 2.8 | 3.7 |
| 6 | Thickness≥(mm) | 1.0 | 1.2 | 1.5 | 1.9 | 2.2 | 2.6 | 3.0 | 3.3 | 4.0 | 4.5 | 6.0 |
| 7 | Equivalent Pore size O90( O95)(mm) | 0.07-0.3 |
| 8 | Vertical permeability coefficient(cm/s) | 1.0×(100—10-2) |
| 9 | Anti-ultraviolet intensity retention rate≥(%) | 80% |
| 10 | Unit Weight≥(g/m2) | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 500 | 600 | 800 |
| 11 | Unit Weight Tolerance(%) | ±5 | ±4 | ±3 |
| 12 | Width Tolerance(%) | ±0.05 |
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