Standards for Woven Polypropylene Geotextiles – MORTH 1/2/3
Woven polypropylene geotextiles are evaluated under key standards to ensure performance in road construction and related applications:
- EN ISO 10319:2015: Measures tensile strength (e.g., 100–200 kN/m) and elongation (typically 15–25%) using a 200 mm wide strip at controlled conditions (20°C ± 2°C, 65% ± 5% humidity). This standard ensures the geotextile’s ability to withstand tensile loads.
- EN ISO 11058:2019: Assesses permeability normal to the plane, ensuring filtration efficiency with apparent opening sizes (AOS) typically 75–150 microns for woven geotextiles.
- EN ISO 12956:2019: Determines the apparent opening size (AOS), critical for filtration and preventing soil particle migration.
- ASTM D4595: Complements ISO 10319 for tensile strength testing, often used in international specifications.
- IRC:SP:59-2002 & MORTH Section 700: Specifies requirements for woven polypropylene geotextiles (e.g., TFI-5300 Type 1, TFI-5200 Type 2, TFI-5100 Type 3) for reinforcement, separation, drainage, and filtration in road subgrades.
These geotextiles are manufactured from UV-stabilized polypropylene tape yarns, offering resistance to chemical and biological degradation. Typical applications include road subgrade stabilization, embankment reinforcement, and erosion control. The woven structure provides high tensile strength and low elongation, ideal for load distribution.
Detailed Specifications Comparison
| Type | Tensile Strength (kN/m) | Mass per Unit Area (g/m²) | Elongation at Break (%) | Apparent Opening Size (micron) | Material | Typical Applications | Test Standards |
|---|---|---|---|---|---|---|---|
| Type 1 | 200 | 300 | 15–25 | 75–150 | Woven PP | Road subgrade, embankment reinforcement | EN ISO 10319:2015, EN ISO 12956:2019 |
| Type 2 | 150 | 250 | 15–25 | 75–150 | Woven PP | Road base stabilization, erosion control | EN ISO 10319:2015, EN ISO 12956:2019 |
| Type 3 | 100 | 200 | 15–25 | 75–150 | Woven PP | Light road subgrade, separation | EN ISO 10319:2015, EN ISO 12956:2019 |
Woven polypropylene geotextiles meeting MORTH 702 specifications provide a robust solution for soil stabilization and reinforcement, ensuring long-term performance in infrastructure projects.
Chart Details
Standards for MORTH 702 Woven Polypropylene Geotextiles
- EN ISO 10319:2015: Measures tensile strength (100–200 kN/m) and elongation (15–25%) using a 200 mm wide strip at 20°C ± 2°C and 65% ± 5% humidity, ensuring load-bearing capacity.
- EN ISO 11058:2019: Assesses normal permeability, critical for filtration in road subgrades.
- EN ISO 12956:2019: Determines apparent opening size (AOS, 75–150 microns), ensuring filtration without clogging.
- ASTM D4595: Complements ISO 10319 for tensile strength, often referenced in global specifications.
- IRC:SP:59-2002 & MORTH Section 700: Specifies woven polypropylene geotextiles (e.g., TFI-5300 Type 1, TFI-5200 Type 2, TFI-5100 Type 3) for reinforcement, separation, drainage, and filtration in road construction.
- UV Stabilization: Polypropylene tape yarns are UV-stabilized (e.g., with carbon black), ensuring durability during installation.
Table Notes
- Specifications:
- Type: Types 1, 2, and 3, as per MORTH 702, with Type 1 having the highest strength and mass.
- Tensile Strength: 200 kN/m (Type 1), 150 kN/m (Type 2), 100 kN/m (Type 3), based on typical values for woven polypropylene geotextiles and pricing hierarchy (Type 1 > Type 2 > Type 3).
- Mass per Unit Area: 300 g/m² (Type 1), 250 g/m² (Type 2), 200 g/m² (Type 3), aligned with industry ranges (200–400 g/m²) and proportional to strength.
- Elongation at Break: 15–25%, typical for woven polypropylene geotextiles, which have lower elongation than nonwovens.
- Apparent Opening Size (AOS): 75–150 microns, suitable for filtration and separation, per EN ISO 12956:2019.
- Material: Woven polypropylene (PP) tape yarns, UV-stabilized for durability.
- Applications: Road subgrade and embankment reinforcement (Type 1), road base stabilization and erosion control (Type 2), light subgrade separation (Type 3).
- Test Standards: Primarily EN ISO 10319:2015 and EN ISO 12956:2019, with MORTH 702 compliance.
- Assumptions: Specific tensile strengths and masses are estimated based on industry norms and search result pricing (e.g., TFI-5300 Type 1 at 132.00 INR/sqm vs. TFI-5100 Type 3 at 111.00 INR/sqm), as MORTH 702 does not publicly detail exact values for Types 1–3.
Additional Notes
Limitations: Woven geotextiles have lower permeability than nonwovens, making them less suitable for high-drainage applications but excellent for reinforcement and separation.
MORTH 702 Compliance: The geotextiles are CE-marked, UV-stabilized, and designed for reinforcement, separation, drainage, and filtration, per IRC:SP:59-2002 and MORTH Section 700.
Woven Structure: Provides high tensile strength and low elongation, ideal for load distribution in road construction.