500g Needle Punched Polypropylene Non Woven Geotextile Drainage For Transportation Industry

Description:

PP Nonwoven Geotextile is a geosynthetic material made of polypropylene (PP) fiber as the main raw material through needle punching or thermal bonding process.

Materials and manufacturing processes

1. Raw materials: 100% polypropylene (PP) fiber.

2. Process:

• Needle punching process: Short fibers are combed, laid, and needle punched to form a three-dimensional structure, suitable for high permeability scenarios.
• Thermal bonding process: Reinforced by high-temperature melting fiber nodes, suitable for high-strength demand scenarios

Features and advantages

1. Physical properties:

• Weight range: 100-1200gsm, different weights can be customized.
• Width range: 1-8 meters, common width is 4-6 meters.
• Tensile strength: longitudinal breaking strength can reach 12.5-50kN/m.

2. Functional characteristics:

• Corrosion resistance: acid and alkali resistance, aging resistance (UV stabilizer added).
• Water permeability: good horizontal drainage and vertical penetration ability.
• Lightweight and high strength: The specific gravity is only 0.19g/cm³, and the strength is better than most natural materials.

Main application areas

1. Water conservancy projects: lake/river slope protection and anti-scouring, dam drainage layer.
2. Transportation infrastructure:

• Highway/railway subgrade isolation and reinforcement.
• Tunnel drainage and anti-seepage treatment.

3. Environmental protection projects: landfill anti-seepage system, ecological restoration projects.

4. Agriculture and horticulture: weed control, plant coverage, eco-bag slope protection.

‌Model selection reference

GEOTEXTILE INSTALLATION  

To pave by roll with artifical method, the fabric must be level and appropriately leave the margins for

deformation. The inst lation method usually has overlapping, sewing and welding.

The overlapping part is generally more than 0.2m.

 It should be welded or stitched for the exposed geotextiles.

AII sewing must be continuously carried out(for example, point-sewing is not allowed),

the geotextiles must be overlapped more than 200mm before overlapping.

The minimum distance between sewing needle and the fabric edge(the edge of exposed material) is at least 25mm. 

Product specifications and standards

• International standards: ASTM D4632 (tensile strength), ISO 9001.
• Domestic: JT/T 992.1-2015 (standard for polypropylene geotextiles for highway engineering).