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What is woven geotextile?
Woven geotextiles are made of high-strength industrial synthetic fibers as raw materials and produced by weaving process. It is characterized by high mechanical strength such as tensile resistance, tear resistance, top burst resistance, puncture resistance, etc., which is 8 times that of staple fiber geotextile of the same gram weight, and 5 times that of polyester filament stone fabric, and its high strength characteristics are particularly suitable for strengthening, reinforcement, protection and isolation engineering: at the same time, the hydraulic performance is superior, it is a plane filtration, the void size is large, the equivalent pore size is 0.07-0.5mm, and the resistance to plugging and creep is strong, especially suitable as a filter layer for non-cohesive soil.
What are the properties of woven geotextile?
1. High strength: using high-strength industrial polypropylene, polyester, nylon and other synthetic fibers as raw materials, with high original strength. After weaving, it forms a regular interwoven structure, and the comprehensive bearing capacity is further improved.
2. Durability: The characteristics of synthetic chemical fiber are that it is not easy to denature, decompose and weather. It retains its original characteristics for a long time.
3. Corrosion resistance: synthetic chemical fibers are generally acid-resistant, alkali-resistant, insect-resistant, and mildew-resistant.
4. Water permeability: Woven fabrics can effectively control their structural pores to achieve a certain degree of water permeability.
5. Convenient storage and transportation: due to its light weight and packaging according to certain requirements, it is very convenient for transportation, storage and construction.
What is woven geotextile used for?
1) Isolation, reinforcement and protection of the bottom, slope and closure of landfill disposal sites and environmental protection projects;
2) Reinforcement, filtration and erosion control of water conservancy projects, dams and slope protection, isolation and bottom protection of channels;
3) Foundation isolation, filtration, soil slope, retaining wall and pavement reinforcement of highways, railways and airport runways;
4) Soft foundation treatment, slope protection, beach embankment, harbor wharf and breakwater reinforcement, drainage, sandbag filling, and soft body row of port engineering.
| Filament woven geotextile(GB/T17640-2008) | ||||||||||||
| Item | Performance indicators | |||||||||||
| Nominal strength at break/(kN/m) | 35 | 50 | 65 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 250 | |
| 1 | Longitudinal tensile break strength/(KN/m) ≥ | 35 | 50 | 65 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 250 |
| 2 | Transverse tensile break strength/(kN/m) ≥ | According to the agreement, if there are no special requirements, the meridional breaking strength is x0.7 | ||||||||||
| 3 | Standard strength corresponds to elongation/% ≤ | Warp35,Weft30 | ||||||||||
| 4 | CBR brusting strength/Kn ≥ | 2.0 | 4.0 | 6.0 | 8.0 | 10.5 | 13.0 | 15.5 | 18.0 | 20.5 | 23.0 | 28.0 |
| 5 | Equivalent opening sizeO90(O95)/mm | 0.05-0.50 | ||||||||||
| 6 | Vertical permeability coefficien/(cm/s) | Kx( 10-2-10-5) K=1.0-9.9 | ||||||||||
| 7 | Width deviation/% | -1.0 | ||||||||||
| 8 | Thickness deviation of film bag irrigation/% | ±8 | ||||||||||
| 9 | Deviation of the length and width of the film bag/% | ±2 | ||||||||||
| 10 | Sewing strength/(kN/m) ≥ | Nominal strength at break X0.5 | ||||||||||
| 11 | Warp and weft tear strength/kN ≥ | 0.4 | 0.7 | 1.0 | 1.2 | 1.4 | 1.6 | 1.8 | 1.9 | 2.1 | 2.3 | 2.7 |
| 12 | Mass deviation per unit area/% | -5 | ||||||||||
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