Geotextile is a material that can improve soil characteristics. It is a synthetic permeable textile material typically produced from polypropylene or polyester polymers. It has the ability to perform functions such as separation, filtration, reinforcement, protection, and drainage in soil. Protecting the soil is a primary concern in all technical infrastructure projects, and geotextile is an ideal material for this purpose. Geotextile is used in various civil engineering projects, including water conservancy projects, roads, embankments, drainage structures, and landfill sites.
There are three types of geotextile:
1. Woven geotextile: Woven geotextile is a commonly used type characterized by the appearance of two sets of parallel lines or yarns. The yarns extending along the length are called warp yarns, and the yarns in the vertical direction are called weft yarns.
2. Non-woven geotextile: Non-woven geotextile is a fabric made from continuous filaments or short fibers. The fibers are bonded using a combination of heat, chemical, or mechanical techniques.
3. Knitted geotextile: Knitted geotextile is manufactured by interlocking a series of yarns. All knitted geotextiles are made by combining knitting techniques with other methods used by geosynthetic manufacturers, such as weaving.
What are the uses of geotextile?
Geotextile has various functions depending on the different materials used. In any application, geotextile serves multiple purposes, including separation, filtration, drainage, reinforcement, sealing, and protection.
Separation: Geotextile can be installed between two different soil materials to achieve separation. It helps separate different materials to obtain the desired soil characteristics.
Filtration: Geotextile is used for allowing water to move bi-directionally in drainage systems and preventing the movement of fine aggregates between soil layers. It can be used in vertical and horizontal applications to address drainage issues around homes and along roads.
Reinforcement: Geotextile is used to improve soil stability and provide reinforcement. It is used in the construction of structures such as dams and roads built on soils with poor slopes to allow steeper embankments.
Sealing: Geotextile can be filled with asphalt or other mixtures to make it impermeable, thereby preventing water flow in two directions. It is used to prevent the contamination of soil or groundwater by the mentioned pollutants.
Protection: Geotextile is used to absorb stress and reduce or prevent damage and erosion of geotechnical structures. Embedding geotextile in construction helps prevent severe damage, such as soil erosion and wind hazards.