Geotextile bags are high-performance engineered fabric containers designed for concrete or mortar filling applications. Manufactured using high-strength polypropylene, polyester, or nylon yarns, these bags provide excellent tensile strength and low elongation, ensuring structural stability after filling.
Once filled with concrete, the bags form a solid protective layer that conforms closely to the underlying terrain. This adaptability makes them highly effective for slope protection, riverbank stabilization, and coastal reinforcement. Unlike traditional rigid concrete structures, geotextile bags provide flexibility during installation and maintain integrity even under dynamic environmental conditions.
One of the key advantages of geotextile bags is their ability to be installed underwater without the need for cofferdams or flow interruption. This significantly reduces construction complexity and project costs, especially in emergency flood control and river engineering projects.
| Property | Unit | Value |
|---|---|---|
| Grammage | g/m² | ≥650 |
| Tensile Strength MD | kN/m | ≥90 |
| Tensile Strength CD | kN/m | ≥90 |
| Elongation MD/CD | % | ≤15 / 12 |
| 2% Tensile Strength MD | kN/m | ≥15 |
| 5% Tensile Strength MD | kN/m | ≥37 |
| CBR Strength | kN | ≥8.5 |
| Seam Strength | kN/m | ≥160 |
| UV Resistance | % | ≥90 |
| Opening Size O90 | mm | ≤0.425 |
| Permeability Q50 | L/m²/s | ≥25 |


What is a geotextile bag used for
Geotextile bags are used for slope protection flood control and reinforcement in hydraulic engineering projects
Can geotextile bags be used underwater
Yes they can be installed underwater without cofferdam making construction faster and more efficient