Geotextile

1. Provides long-term strength and durability performance.
2. Extends road and railway life.
3. Cost-effective environmental alternative to traditional construction materials.
4. Prevents soil erosion.

Filtration
Filtration functions to restrict the migration of fine soil particles from a soil mass while remaining permeable to water movement greater than, or at least equivalent to the permeability of the protected soil.

Drainage
Water is conveyed along the path of the geotextile, and then to an outlet. Water may be vertically or horizontally conveyed. Drainage is related to the role of filtration, and is a function of the permeability of a geotextile and its pore opening size or porometry.

Separation
Separation is the function which prevents two distinct soils of different materials from intermixing. The key factors for a geotextile to satisfy this function are porometry, toughness and strength.

Reinforcement
This function involves the stabilization of a soil mass by provision of tensile strength to the soil-fabric system.

Non-Woven Geotextiles

• Needle-punched.
• Made of 100% polypropylene staple fibers formed into a random network for dimensional stability.
• Has excellent chemical compatibility.
• Resistant to UV deterioration, rotting, biological degradation, naturally encountered basics, and acids.
• Easy to install.

Used For

• Shoreline protection
• Roadway separation
• Railroad stabilization
• Subsurface drainage
• Containment
• Gas venting
• Under riprap or around pipes
• Soil separation
• Filtration
• Erosion & sediment control
• Sub-grade stabilization
• Protection of geomembrane liners

Woven Geotextiles

• Made of polypropylene materials.
• High tensile strength and durability.
• Easy to install.
• Cost-effective environmental alternative to traditional construction materials.
• Reduces required aggregate thickness in unpaved roads.
• Extends road and railway life.
• Speed-up construction with short-term reinforcement of the base.
• Offers optimum performance when used in stabilization applications.

Used For

• Sub-surface drainage
• Containment
• Temporary liners
• Turbidity curtains & silt fence
• Covers & tarps
• Soil separation in road construction
• Sub-grade stabilization
• Railroad stabilization
• Filtration
• Erosion & sediment control in embankment construction
• Protection of geomembrane liners

Woven and non-woven geotextiles both have their advantages and are suitable for different applications, so the choice depends on the needs of your project:
Woven geotextiles
These are stronger and more durable than non-woven geotextiles, making them a good choice for reinforcement and stabilization projects. Woven geotextiles are often used under patios, parking areas, and paths.
Non-woven geotextiles
These have higher flow rates and permeability than woven geotextiles, making them a better choice for drainage and filtration applications. Non-woven geotextiles are also a good choice for protecting geomembrane lining systems from penetrations.

Here are some other differences between woven and non-woven geotextiles:
Composition: Woven geotextiles are made by weaving polypropylene tapes together in a crisscross pattern. Non-woven geotextiles are made by thermally bonding polypropylene or a mixture of polypropylene and polyester fibers.
Elongation: Non-woven geotextiles have much higher elongation than woven geotextiles.

Non-woven geotextiles represent approximately 90% of geotextile purchases made by our clients at Ontario Agra.