Geotextiles are permeable fabrics made from materials like polypropylene, polyethylene, polyamides or polyester. They are used in construction and civil engineering projects to separate, filter, reinforce, protect or drain soil. Common applications include roads, dams, and erosion control. Geotextiles function by separation, stabilization, and filtration and help prevent issues like drainage clogging, soil piping, and embankment erosion. Some have been developed into geogrids and meshes for additional benefits in geotechnical and environmental engineering designs.

1. Geotextiles BY: Ashutosh Vatsa

2. What is Geotextile? Permeable geosynthetics comprised solely of textiles. Or it could be defined as: Permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain.

3. Types of Geotextiles Typically made from polypropylene, polyethylene, polyamides or polyester. Geotextiles could be woven as well as non-woven. woven (looks like mail bag sacking) Non-woven needle punched (looks like felt) heat bonded (looks like ironed felt)

4. Functions of Geotextiles Separation Stabilization Filtration

5. Geotextile composites - geogrids and meshes have been developed. These materials are referred to as geosynthetics and each configuration -geonets, geogrids and others can yield benefits in geotechnical and environmental engineering design.

6. Applications of Geotextiles Roadways, parking lots, loading areas and construction sites Prevent drainage systems from clogging with fine particles Fluid transmission For waterway erosion control Reduce soil piping and embankment erosion Prevention of weed growth (in horticulture applications) Moisture conservation (in horticulture applications)

7. Civil engineering applications including roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, bank protection use Geotextiles as raw materials. Geotextiles can improve soil strength at a lower cost than conventional soil nailing.

8. Geotextiles: The fabric of Erosion Control Coir (Geotextile) is a popular solution for erosion control, slope stabilization and bioengineering, due to the fabric's substantial mechanical strength. Coir last approximately 3 to 5 years depending on the fabric weight. The product degrades into humus, enriching the soil.

9. Geotextiles replacing Hydroseeding Hydroseeding is a process of planting grass that is fast, efficient and economical on sloppy surfaces where soil erosion is a major problem. Geotextiles are superior than hydroseeding when the growing season is short and plants cannot stabilize the slope quickly, At high altitudes where major storms are a frequent occurrence.