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Nonwoven geotextiles are geosynthetics that consist of permeable materials and are commonly used in civil engineering projects alongside geotechnical materials such as soil and rock. They are manufactured through mechanical, chemical, or heat-bonding processes, which create a stable fiber network.
How are non-woven geotextiles made?
Nonwoven geotextiles are manufactured by interlocking fibers, whether long or short, through methods like needle punching or other techniques. Following this, additional thermal treatment is applied to enhance the geotextile’s strength further.
How is non-woven fabric manufactured?
The manufacturing of nonwoven fabrics generally comprises two primary processes: web formation and web consolidation. The key methods used for web formation include carding, air laying, wet laying, spun-bonding, melt-blowing, and more recently, electro-spinning.
What is the purpose of non-woven geotextile material?
Nonwoven geotextiles are selected when there is a need for both soil separation and permeability. These materials are commonly utilized for enveloping French drains or in combination with other sub-surface drainage systems. Nonwoven geotextiles are also commonly employed beneath rock riprap revetment, where both separation and drainage play a crucial role.
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