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1.Introduction
Polyester contimuous filament non woven geotextile(https://geolianyi.com/product/polyester-continuous-filament-non-woven-geotextile/)is a kind of geosynthetic material applied in geotechnical engineering and civil engineering. It is made by the method of polyester continuous filament fiber web formation and needle punching consolidation, and its fibers are arranged in a three-dimensional structure.In addition to having excellent mechanical properties,it also features good longitudinal and transverse drainage performance,good elongation performance, and high chemical stability against biological, acid and alkali, and aging. It also has a wide pore size range,tortuous pore distribution, excellent permeability and filtration performance.
2.PET Filament Geotextile Functions
*Isolation function
Since the effective pore diameter of the geotextile(https://geolianyi.com/product/polyester-continuous-filament-non-woven-geotextile/)is fixed, if it is set as a interlayer between two materials with significantly different properties (such as coarse aggregates and fine aggregates), it can effectively prevent the mixing of these two aggregates with different properties
*Reverse filtration function
When the liquid in the soil flows over geotextiles(https://geolianyi.com/product/polyester-continuous-filament-non-woven-geotextile/),the liquid can pass through smoothly while the soil particles are retained. This phenomenon is called reverse filtration. Reverse filtration is when the liquid passes through the fabric rather than flowing along the fabric surface
*Reinforcing function
Soil has good compressive resistance, but its shear strength is relatively low. Geotextiles(https://geolianyi.com/product/polyester-continuous-filament-non-woven-geotextile/)utilize the large frictional force between them and the soil to control the lateral diffusion of the soil, thereby enhancing the overall stability of the soil
*Protection function
Due to its own flexibility, geotextile (https://geolianyi.com/product/polyester-continuous-filament-non-woven-geotextile/)can serve as a protective layer and can also be called a cushion layer. For instance, geotextiles can be laid on top of geomembranes to prevent them from being punctured by sharp stones
*Fluid conduction function
This is the function of planar drainage or gas conduction of geotextiles(https://geolianyi.com/product/polyester-continuous-filament-non-woven-geotextile/).The numerous three-dimensional pores inside needle-punched geotextiles enhance the fabric’s ability to conduct fluids in the plane, which is also the uniqueness of needle-punched fabrics
3.PET Filament Geotextile Applications
*Reverse filtration of embankments and slopes in water conservancy projects, and isolation and anti-seepage of channels
*Foundation isolation, reverse filtration, drainage, soil slopes, retaining walls and pavement reinforcement and drainage for highways, railways and airport runways
*Soft foundation treatment for port engineering, reinforcement and drainage of beach embankments, seaport wharfs and anti-slope embankments
*Isolation and anti-seepage for landfill sites, ash DAMS of thermal power plants and tailings DAMS of mines
*Isolation, reverse filtration, reinforcement and protection for various infrastructure construction and civil engineering projects
Keywords：
PET Non Woven Geotextile