To stabilize farm roads, residential driveways, and unpaved parking lots where soft soil causes unseparated gravel to fail, adding structural reinforcement at an affordable cost for projects where decades of creep is not a critical factor, requires woven polypropylene geotextile with tensile strength calibrated in kN/m. This woven polypropylene (PP) geotextile—also called woven geotextile PP, woven geotextile mesh, or woven fabric for soils—is manufactured by MOLTEXO from interwoven PP threads, in two strengths (40 and 80 kN/m), in rolls 5.2 m wide and 100 m long, designed for standard road construction, landscaping with loads, erosion control, and extensive agriculture with structural weed barrier fabric.
Key Benefits
- Tensile strength calibrated in kN/m: two versions (40 and 80 kN/m) for different load scales: 40 kN/m for farm roads, landscaping, and low walls; 80 kN/m for standard road construction, commercial platforms, and areas with continuous loads.
- Effective structural separation: the compact weave of interwoven PP threads efficiently separates fill layers and subsoil, preventing aggregate subsidence in soft soil, a critical condition for unpaved driveways and roads.
- Chemically inert and resistant PP: withstands biological degradation, acidic or alkaline soils, water, roots, and typical underground construction conditions for years without losing properties.
- Controlled permeability for passive drainage: allows water to pass through, reducing hydrostatic pressure behind walls and under bases, while retaining fine subsoil particles, a condition to prevent washing and migration.
- Versatility for structural weed barrier fabric: the weave blocks light and prevents weed growth in extensive gardening and agricultural projects, adding an extra function to structural reinforcement.
Typical Applications and Uses
- Stabilization of farm roads, unpaved residential driveways, and unpaved parking lots with light to medium traffic.
- Construction of low retaining walls and slopes with reinforced soil in small residential and commercial projects.
- Structural weed barrier fabric in extensive agriculture, nurseries, and large-scale landscaping projects.
- Separation between soil and decorative gravel in professional landscaping with maintenance traffic (gardening carts, foot traffic).
Quality and Durability
An inexpensive woven PP geotextile fails in two ways: the declared tensile strength is not met in real tests (which disqualifies the geotextile for reinforcement under real load), and the weave is sparse with thin threads (which leads to tearing with the first pass of equipment or uneven tension). MOLTEXO works with PP woven fabric of verifiable calibrated strength at 40 and 80 kN/m, which differentiates a professional construction geotextile mesh from a generic woven fabric that tears during installation.
Both are wovens for structural reinforcement and separation under loads, but they differ in modulus and behavior under sustained load. PET has a higher modulus and lower creep under continuous loads over decades, a condition required in audited hydraulic works and Mechanically Stabilized Earth (MSE) walls with long design life. PP is more economical, lighter, and resists alkalis and basic soils better. Rule of thumb: for road base reinforcement with normal traffic and simple separation, PP performs well; for MSE walls, dams, and audited projects with a 50-100 year design life, PET is the structural choice.
No. Polypropylene has lower UV resistance than PET and degrades progressively under direct Caribbean radiation: fibers become brittle and lose mechanical strength with continuous exposure. The product is sized to function buried under gravel, soil, sand, or pavement. Operating rule: cover within a reasonable timeframe after installation (14-21 days standard). For storing rolls on site before laying, keep them in a protected area or cover with dark tarp. Once buried, PP lasts decades without degradation, retaining full structural properties.
With a sharp industrial utility knife or heavy-duty scissors. The technique to minimize fraying: clean, fast cuts in a single pass, without sawing the material. For areas where edge fraying may be a concern (exposed joints, MSE wall corners), some contractors seal the edges with a torch in a quick sweep to fuse the surface fibers and create a clean edge. For laying under aggregate, moderate edge fraying does not affect structural function or separation. What matters is that the cut line follows the project dimension.
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| Ultimate strength MD | 41 kN/m (2809.4 lb/ft) |
|---|---|
| Ultimate strength CD | 41 kN/m (2809.4 lb/ft) |
| Elongation MD/CD | <15% |
| UV resistance | ≥85% |
| Pore size O90 | 0.3 - 0.8 mm (0.012 - 0.031 in) |
| Water flow | 10 - 180 L/m²/s (0.25 - 4.42 gal/ft²/s) |
| Roll: Width | 29.0 cm (11.42 in) |
|---|---|
| Roll: Height | 29.0 cm (11.42 in) |
| Roll: Depth | 520.0 cm (204.72 in) |
| Roll: Weight | 122.0 kg |
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