Geotextiles, or geosheets, are permeable fabrics that are designed to stabilize and maintain soil for the purposes of either conservation or crop production. Geotextiles can be made from both natural and synthetic polymers. They are able to separate, filter, reinforce, protect and drain soil and other terrestrial substances. A layer of geosheet on topsoil helps to hold the soil together and prevent erosion, in a process known as soil stabilization. It also serves as a base for new plants to grow, when the soil becomes loose due to changing weather patterns.
Woven geotextiles are produced by weaving synthetic polymers or natural fibers, and offer great tensile strength and load capacity. They provide a stable base for construction, and are thick and tense, however they are relatively impermeable and therefore not suitable for filtration purposes.
Non-woven geotextiles are made of staple fibers or ceaseless filaments which are reinforced by snaring the fiber with thorned needles and then
fusing the strands using a variety of methods. They are cheaper and faster to produce, and help to prevent soil erosion and facilitate crop production.
Ocean geotextiles provide superior quality, reliability and strength. They are affordable, and also offer an attractive resale value. They resist rot and biological degradation, as well as ultraviolet rays, and are also chemically inert, meaning that they are not vulnerable to corrosion or other chemical reactions. They strengthen and support aggregates and are effective in increasing the life of roadways and other structures
Geotextiles and geosheets have been developed into different sub-products, such as geogrid composites, geonet composites, and geomembrane composites. These products possess a wide range of applications in civil engineering, such as roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, bank protection, and coastal engineering.
Common applications include:
● Roadway reinforcement and stabilization
● Railroad support
● Aggregate separation
● Riprap support
● Erosion control
● Retaining walls
● Stabilization of slopes
● Landslide repairs
● Soft-soil embankments
● Vertical drains
● Reinforcement under tramways or railway track ballasts
● Reinforcement of foundation layers
● Bridging and reinforcement over weak areas