sdlingxiang@sdlxmic.com 
+8615066602257
sdlingxiang@sdlxmic.com +8615066602257
Polyester filament geotextile
WhatsApp:
+8615066602257
E-Mail:
sdlingxiang@sdlxmic.com
WhatsApp:
+8615066602257
E-Mail:
sdlingxiang@sdlxmic.com
Polyester filament geotextile is a type of geosynthetic material used in geotechnical and civil engineering; it is manufactured by forming polyester filaments into a web and consolidating them through needle-punching, resulting in a three-dimensional fiber structure. In addition to excellent mechanical properties, it offers good longitudinal and transverse drainage capabilities, high elongation, and superior chemical stability—including resistance to biological degradation, acids, alkalis, and aging. Furthermore, it features a wide range of pore sizes, a tortuous pore structure, and excellent permeability and filtration performance.
Product Details
1. **Separation Function:** Due to the specific effective pore size of geotextiles, placing them as an interlayer between materials with significantly different properties (such as coarse and fine aggregates) effectively prevents the mixing of these materials.
2. **Filtration Function:** Filtration refers to the process where liquid flows freely through the geotextile while soil particles are retained. This involves the liquid passing through the fabric rather than flowing along its surface.
3. **Reinforcement Function:** While soil possesses good compressive strength, its shear strength is relatively low. Geotextiles utilize the high friction generated between the fabric and the soil to restrict lateral soil displacement, thereby enhancing the overall stability of the soil mass.
4. **Protection Function:** Thanks to their inherent flexibility, geotextiles can serve as a protective layer or cushion. For instance, a geotextile can be laid over a geomembrane to prevent it from being punctured by sharp stones.
5. **Fluid Conduction Function:** This refers to the geotextile's ability to facilitate in-plane drainage or gas conduction. The extensive three-dimensional pore structure within needle-punched geotextiles enhances their capacity to conduct fluids within the plane of the fabric—a unique characteristic of needle-punched materials.
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