A Geotextile bag, also known as a Geobag, is a large synthetic fabric bag used for various civil engineering and environmental applications. Geotextile bags are typically filled with soil, sand, or other granular materials and then stacked or arranged to form structures such as retaining walls, breakwaters, or erosion control barriers. They can also be used for shoreline protection, land reclamation, and sediment containment in water bodies. The geotextile material used in the bag provides filtration and erosion control properties while allowing water to pass through.

Using permeable fabric, soil can be filtered, protected, separated, reinforced, sealed, and drained with geotextile bags. Due to their protective layer, which raises UV resistance and protects against damage, these bags are primarily used for civil engineering. There are various names for these bags; they are also called:

• Geo Bag
• Non-Woven/Woven Geo Bag
• Geotextile Sand Container
• Sand Bags

Nonwoven Geotextile Bag or Sand filled Geo Bags are produced for placing or dumping types applications depending on the intended applications with various specifications

What is the use of geotextile bags in Civil Engineering?
Below mentioned are some points that explain why geotextile or geo bags are used for civil engineering:

• Erosion control: Geo bags stabilize slopes and prevent erosion by slowing down water flow and retaining soil particles.
• Shoreline protection: Geo bags can protect shorelines from erosion caused by waves and currents. They can be stacked to form breakwaters or placed along the shore to create artificial beaches.
• Retaining walls: With geo bags, you can build retaining walls at a lower cost that is easier to construct than concrete retaining walls.
• Land reclamation: Geo bags can create new land by filling them with dredged sediment and stacking them to form a stable foundation.
• Flood control: Geo bags can be used to build temporary or permanent flood control structures to protect against flooding.

How do Geo bags make Civil Engineering Easier?
Geo bags offer several advantages that make civil engineering easier, including:

• Ease of installation: Geo bags can be easily transported to a construction site and filled with local soil or other materials. They can be stacked and arranged without heavy equipment or skilled labour, which can save time and reduce costs. Moreover, geo bags specification are top-notch that make civil engineering easy.
• Flexibility: Geo bags can be used to create structures of different shapes and sizes, making them a versatile solution for a wide range of civil engineering applications.
• Environmental benefits: Geo bags are made of synthetic materials that are resistant to degradation and can withstand harsh environmental conditions. They also provide filtration and erosion control properties that can help protect the environment and preserve natural habitats.
• Cost-effectiveness: Geo bags are often less expensive than traditional materials such as concrete or steel. They can also be reused or recycled, reducing costs and environmental impact.
• Overall, geo bags offer a practical and efficient solution for many civil engineering projects, making them a popular choice among engineers and contractors.

What are geo bags specification?
The geo bags specification may vary depending on the intended application and different geo bags manufacturers in India. However, some common specifications of geo bags include:

• Material: Geo bags are typically made of high-strength, non-woven geotextile fabrics, such as polypropylene or polyester. The fabric should be UV resistant and have good chemical and biological resistance.
• Size: The size of a geo bag can vary, with most bags ranging from 0.5 to 5 meters in width and length, and from 0.5 to 2.5 meters in height. The size will depend on the specific application and the design requirements.
• Capacity: Other geo bags specification include that it can hold a range of granular materials, such as sand, soil, and gravel. The capacity of the bags will depend on their size, thickness, and strength.
• Strength: The strength of a geo bag is measured in terms of its tensile strength, tear resistance, and puncture resistance. The bags should have sufficient strength to withstand the loads and stresses of the intended application.
• Permeability: Geo bags should have good permeability to allow water to pass through while retaining the granular materials. The permeability will depend on the type and thickness of the geotextile fabric.
• Ultraviolet (UV) resistance: The fabric of the geo bag should have good resistance to ultraviolet (UV) radiation, which can cause degradation and reduce the bag’s lifespan.

Overall, the geo bags specification should be selected based on the requirements of the specific application to ensure the bags provide the desired performance and durability.

Product Specification:

• Weight: 200gsm to 600gsm
• Thickness: 1.5mm to 5.5mm
• Size: 1.25m X 1.00m to 2.10m X 1.5m
• Customized sizes are also available – As per requirement

Uses
Nonwoven Geotextile Bag or Sand Filled Geo Bags are as Launching Material

• Flood Protection
• Erosion Control

The most effective applicable areas of this geo-textiles technology are to protect erosions. Geotextiles provide the best protection for erosion prone sedimentary soils which are deficient in stability due to insufficient cohesion. In Bangladesh river bank soils are very unstable from erosional point of view. These soils are deposited by the action of river flow and therefore, are very prone to re-transportation. Geo-textiles technology provides the most effective solutions for these types of soils. The construction procedures practiced in Bangladesh is only intended for protection of river bank surface layers from erosion.

Geo Bag as Launching Material

An economical source of store are not available and concrete blocks are also expensive. Geo bags filled with sand can be made available at a much cheaper cost. Therefore a graded Geo bag as launching material are most idle for slope protection. Geo bag are found to be stable protection elements. They seems to be provided a flexible cover layer with adequate resistance to flow forces acting on the revetment. In addition they contain filter characteristics and retain the fine underlay subsoil. Sand filled geo-bag should be free of plastic, roots and organic materials. It should not contain more than 5% silt and clay to the extent passing the 0.075 mm sieve.