Pure PP 400g Polypropylene Nonwoven Geotextile Separation Layer Subgrade Aggregate Base For Road Construction
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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