Needle-punched geotextile for highway engineering

Basic parameters

Highway engineering needle-punched geotextile is a nonwoven fabric made from polyester (PET) or polypropylene (PP) staple fibers through a needle punching process. Its 3D fiber structure offers excellent tensile strength, tear resistance, puncture resistance, filtration, drainage, and separation capabilities. It is widely used in highways, rural roads, railways, and airport runways to enhance base stabilization, prevent subgrade deformation, and extend pavement lifespan.

Key Specifications

Features

• UV Resistant
• High-Temperature Resistance (up to 230°C), Maintains structural stability and original physical properties.
• High In-Plane Drainage & Vertical Permeability
• Excellent Creep Resistance
• Resistant to Chemical Corrosion (soil contaminants, gasoline, diesel, etc.)
• High Elongation Under Stress, adapts well to uneven and irregular substrates.

Function

• Breathable & Permeable: Allows water to pass through while preventing soil and sand erosion.
• High Water Conductivity: Forms efficient drainage channels to remove excess liquids and gases.
• High Permeability Under Pressure: Maintains excellent water flow even under soil and water pressure.
• Stress Distribution: Effectively disperses, transfers, or decomposes concentrated stress to protect soil from damage.
• Separation Layer: Prevents mixing between upper and lower layers of sand, soil, and concrete.
• Chemical Resistance: Made of PP or PET fibers, resistant to acids, alkalis, corrosion, heat, and oxidation.
• Lightweight & Easy Installation: Reduces construction time and costs while improving efficiency.
• Reinforcement: Enhances soil tensile strength, deformation resistance, and structural stability, improving soil quality.

Purpose

• Filtration material for soil separation
• Drainage material for reservoirs, mineral processing in mines, and foundation drainage in high-rise buildings
• Anti-scouring material for river embankments and slope protection
• Reinforcement material for roadbeds of railways, highways, airport runways, and stabilization material for swampy road construction
• Thermal insulation material for frost and freeze protection
• Anti-cracking material for asphalt pavements

Application scenarios