IS 16654: 2017
Textiles - Polypropylene Multifilament woven geobags
1. Summary about Polypropylene Multifilament Woven Geobags
Polypropylene multifilament woven geobags are high-strength geotextile bags used in river training, coastal protection, embankments, and erosion control works. They are designed to withstand hydraulic forces while maintaining structural stability.
2. Why BIS Certificate is Mandatory for Polypropylene Multifilament Woven Geobags
BIS certification is mandatory because these geobags are used in safety- and infrastructure-critical applications. Failure can lead to erosion, embankment collapse, and damage to public assets.
3. What is BIS Certified for Polypropylene Multifilament Woven Geobags
BIS certification confirms conformity with the applicable Indian Standard issued by the :contentReference[oaicite:0]{index=0} through testing of tensile strength, seam strength, permeability, and durability.
Tests required for Polypropylene Multifilament Woven Geobags
| Title | Mandatory/Optional |
|---|---|
| Material of geobags(UV stabilization) and prefabrication thread(UVstabilization and Linear Density) | Optional |
| Dimensional Stability, Construction of geobags | Required |
Mechanical Properties
| Title | Mandatory/Optional |
|---|---|
| Tensile Strength(MD and CMD) | Required |
| Elongation at designated Load(MD and CMD) | Required |
| Seam strength, percent of actual fabric strength | Required |
| Abrasion resistance, retained tensile strength in machine and cross machine direction | Required |
| Trapezoidal tear strength(MD and CMD) | Required |
| Index puncture resistance | Required |
Hydraulic properties
| Title | Mandatory/Optional |
|---|---|
| Water permeability at 100 mm water head | Required |
| Apparent opening size (AOS) | Required |
Physical properties
| Title | Mandatory/Optional |
|---|---|
| Mass | Required |
| Length of geobag | Required |
| Width of geobag | Required |
| Mass of sand filled geobag | Required |
| UV resistance after 500 h, retained tensile strength in machine and cross directio | Optional |
4. Benefits of BIS Certification for Polypropylene Multifilament Woven Geobags
- Ensures high tensile and seam strength
- Mandatory for river and coastal protection projects
- Improves resistance to hydraulic stress
- Reduces risk of erosion failure
- Enhances acceptance by engineers and authorities