1. Nonwoven geotextile forms a physical isolation layer between the soil and the gravel base, preventing the mutual migration between aggregate and foundation soil, reducing the thickness loss of the base, and avoiding the settlement and deformation of the road surface.
2. It can divert surface moisture, prevent the strength of the foundation soil from decreasing due to the increase of pore pressure, block the upward migration of fine-grained soil, and maintain the hydraulic conductivity of the gravel layer.
3. When laid on a soft foundation, the geotextile can reduce the peak compressive stress on the foundation surface through the tension membrane effect, reduce the deformation of the surface layer, and significantly improve the adaptability of traffic loads.
Introduction
Nonwoven Geotextile Fabric for Driveway are engineering materials used for lane paving, with the main functions of isolation, reinforcement, drainage and filtration. It prevents the lane base from mixing with the soil below, reduces potholes and deformation of the road surface, extends the service life, disperses vehivle pressure, improves the road surface's load-bearing capacity, and prevents soil particles from clogging the gravel layer, keeping the drainage channel unobstructed.
Application
1. Road
Roadbed isolation: Separate the base soil and gravel layer to prevent mud from rising.
Asphalt pavement crack resistance: Lay between the old pavement and the new asphalt layer to delay reflective cracks.
2. Water Conservancy
Drainage system: Wrap drainage blind pipes to filter sediment.
Dyke filter layer: Control the direction of seepage to prevent pipe burst damage.
Riprap slope protection bottom layer: Resist wave scour.
3. Environmental Protection
Landfill engineering: Used for lining protective layer, anti-piercing of sharp objects, covered with HDPE anti-seepage membrane.
Tails pond bottom lining: With bentonite pad, it can block the migration of heavy metal ions and control pollution.
4. Construction
Soft foundation reinforcement: Used for foundation reinforcement to improve bearing capacity.
Basement waterproof layer isolation: Resist backfill soil and stone damage.
5. Agriculture and Landscape
Farmland drainage: Used as drainage ditch lining to reduce silt deposition.
Roof garden: divide the planting soil and drainage layer.
Permeable paving base: maintain rainwater infiltration.
Why Nonwovens?
1. Material: Polyester or polypropylene fibers are made by needle punching/thermal bonding process.
2. Features:
High water permeability: Rapid drainage to avoid water accumulation and softening the foundation.
Flexibility: Conforms to uneven ground and is easy to construct.
Puncture Resistance: Prevents gravel from puncturing and maintains isolation effect.
Comparison with Woven Geotextiles: Nonwovens are good at drainage and isolation, while woven fabrics are better at high-strength reinforcement.
Parameter
1. Physical CharacteristicsMass per
Unit Area: 120-200g/㎡
Thickness: 0.8-2.0mm
2. Mechanical Performance Index
Parameter | Test Standard | Requirements for Driveways | Functions |
Tensile Strength | ASTM D4632 | ≥18kN/m（light equipment） | Resist paving stress and load |
≥25kN/m（heavy equipment） | |||
Elongation at Break | ASTM D4632 | 50%-80% | Adapt to foundation deformation |
Bursting Strength | ASTM D6241 | ≥1.5kN（light equipment） | Resist puncture by gravel and foundation protrusions |
≥2.5kN（heavy equipment） | |||
Trapezoidal Tear Strength | ASTM D4533 | ≥0.4kN | Resist local concentrated damage |
Laying Process
1. Pretreatment
Site Cleaning: Remove objects on the surface. Excavate to designed height (usually 150-200mm lower than the road).
Level and Compact Foundation: Use a vibrating roller to compact in layers, with each layer thickness ≤150mm.
2. Geotextile Laying
Lay along the longitudinal direction of the lane, keep it naturally loose, and do not pull it hard. The conventianal overlap width is ≥300mm, and the overlap width in the slope area is ≥500mm.
3. Protective Layer Construction
Lay gravel cover within 24 hours and compact in layers.
4. Surface Layer Construction
Directly lay surface materials such as asphalt or concrete.
About Us
Founded in 2008, Haoyang Environmental is located at Shandong Province, China, which focuses on the production of environmentally friendly engineering materials, has more than 100 professional employees, and has branches in many provinces in China. The company has advanced production equipment, including more than 20 advanced production lines, dedicated to producing high-quality products. We are committed to innovation and quality, and are committed to building "Haoyang Geotextile" into a world-renowned brand, and continue to contribute to global environmental protection and infrastructure construction.
