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Staple Fiber 400g PP Polypropylene Nonwoven Geotextile Railway Separation Reinforcement
Polypropylene geotextile is a geotechnical material made of polypropylene fiber as the main raw material.
Classification: There are mainly woven geotextiles, non-woven geotextiles, geomembranes, and composite geotextiles. woven geotextiles are further divided into woven geotextiles and knitted geotextiles.
Yixing Shenzhou 400g Non-Woven Polypropylene Geotextile Advantage Production Methods
Spunbond: Polypropylene particles or powder are melted and fed into an extruder. They are then spun through a spinneret into continuous filament bundles. These bundles are then processed to create an irregularly arranged fiber web. This web is then mechanically reinforced by heat pressing, adhesive bonding, or needle punching to form a continuous, uniform geotextile.
Staple Fiber Needlepunch: Short fibers are carded or opened to form a web. The fibers are then randomly arranged by cross-laying or air-laying, and then needle punched to entangle them, forming a nonwoven fabric. This fabric is suitable for producing thick geotextiles.
Features: It has excellent air and water permeability, effectively intercepting sand and soil loss, and has excellent water conductivity, forming drainage channels within the soil. It enhances the soil's tensile strength and deformation resistance, dissipates concentrated stress, and prevents mixing of upper and lower layers of sand, gravel, soil, and concrete. The mesh is non-clogging, highly permeable, corrosion-resistant, lightweight, and easy to install.
Specifications of PP Polypropylene Nonwoven Geotextile:
400g Polypropylene Non Woven Geotextile Application & Function :
Hydraulic Engineering: Geotextiles can be used for dam slope protection and filtration, as well as reservoir seepage control. For example, coastal defense projects in the Netherlands and upstream slope protection of earth-rock dams in the United States have extensively utilized geotextiles, effectively preventing soil erosion and protecting dam safety.
Highway and Railway Engineering: Geotextiles can enhance roadbed stability, reduce rutting deformation, prevent and suppress reflective cracking, and delay fatigue damage. They can also steepen highway slopes and reduce construction earthwork. my country's railway department began using geotextiles to treat roadbed slurry damage in 1981.
Environmental Engineering: Geotextiles are commonly used in landfills to prevent leakage and protect groundwater resources. They can also be used in sewage treatment and waste gas treatment to filter, isolate, and absorb.
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 | ||||||||||
Yixing Shenzhou 400g Polypropylene Non Woven Geotextile INSTALLATION :
1. Pre-Installation Preparation
A. Site Inspection
Clear debris, sharp stones, and vegetation.
Grade the surface to remove unevenness (max. 5cm protrusions).
B. Material Handling
Store rolls on flat, dry ground (avoid UV exposure).
Use fabric slings or forklifts to prevent edge damage.
2. Installation Steps
A. Unrolling & Positioning
Method:
Roll out parallel to the direction of expected stress (e.g., road traffic).
Overlap edges by 30–50cm (seams subject to movement).
Avoid:
Dragging geotextile over rough surfaces.
Wrinkles or folds (compromises soil-fabric interaction).
B. Anchoring (Temporary Fixing)
C. Seaming
D. Covering
Place fill material within 48 hours of installation.
4. Common Mistakes & Solutions
5. Special Cases
A. Slope Installation
Always install top to bottom (prevents soil slippage).
Use composite geotextile-geogrid systems for steep slopes.
B. Underwater Placement
Use sinker rolls or weighted edges.
Divers may be needed to verify alignment.
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Cathy
Yixing Shenzhou Earth Working Materials Co.,Ltd
( SHENZHOU GEOSYNTHETICS)
Add.: No.5 XinBei Road, Xinzhuang Industry Park, Yixing City, Jiangsu Province,China.
Post Code: 214221
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T:+ 0086-0510-8759 8866