Separation Geotextile
1. Efficient isolation function: It can effectively separate soil, sand and gravel materials of different particle sizes, prevent mutual mixing, maintain the integrity of structural layers, and improve the stability of engineering foundations.
2. Excellent permeability: allowing water to pass through without blocking, timely draining accumulated water inside the structure, reducing pore water pressure, and avoiding soil softening that affects engineering strength.
3. Wear resistance and corrosion resistance: The material is tough, with strong tear and friction resistance, and can resist erosion from acids, alkalis, microorganisms, etc. It is suitable for various complex geological environments and has a long service life.
4. Simple and economical construction: light weight, good flexibility, easy to cut and lay, can be quickly constructed and save time; Low cost and reusable, reducing overall project investment.
Products Introduction：
Separation Geotextile is a permeable geosynthetic material made from synthetic fibers (such as polypropylene, polyester, etc.) through processes such as needle punching, weaving, or weaving. It mainly undertakes functions such as isolation, filtration, and drainage in civil engineering through reasonable fiber structure design, which can effectively improve the stability and durability of engineering structures. It is one of the indispensable key materials in various geotechnical engineering.
Product Features：
1. Excellent isolation efficiency: With a uniform pore structure and stable mechanical properties, it can accurately separate soil materials, sand and gravel, fillers, etc. of different grades, prevent material infiltration and mixing, and maintain the design function and overall integrity of each structural layer, providing reliable guarantee for engineering foundations.
2. Efficient filtration and drainage capacity: While allowing water to pass smoothly, it can effectively intercept soil particles and avoid structural instability caused by the loss of fine particles; Its three-dimensional porous structure creates a good channel for water discharge, which can quickly reduce the pore water pressure inside the project and minimize the adverse effects of accumulated water on the structure.
3. Excellent mechanical and weather resistance: It has high tensile strength, tear strength, and puncture resistance, and can withstand various external forces during construction and use; At the same time, it is resistant to acid and alkali corrosion, UV aging, and microbial erosion, and can maintain stable performance in different climates and geological environments, with a long service life.
4. Convenient construction and economic characteristics: lightweight texture, good flexibility, easy cutting, transportation, and laying, adaptable to complex terrain conditions, significantly improving construction efficiency; And the material cost is relatively low, with high comprehensive cost-effectiveness, which can reduce the overall construction cost while ensuring the quality of the project.
Product Parameters：
project | metric | ||||||||||
Nominal strength/(kN/m) | |||||||||||
6 | 9 | 12 | 18 | 24 | 30 | 36 | 48 | 54 | |||
1 | Longitudinal and transverse tensile strength / (kN/m) ≥ | 6 | 9 | 12 | 18 | 24 | 30 | 36 | 48 | 54 | |
2 | Maximum elongation at maximum load in longitudinal and transverse directions/% | 30~80 | |||||||||
3 | CBR top penetration strength /kN ≥ | 0.9 | 1.6 | 1.9 | 2.9 | 3.9 | 5.3 | 6.4 | 7.9 | 8.5 | |
4 | Longitudinal and transverse tearing strength /kN | 0.15 | 0.22 | 0.29 | 0.43 | 0.57 | 0.71 | 0.83 | 1.1 | 1.25 | |
5 | Equivalent aperture O.90(O95)/mm | 0.05~0.30 | |||||||||
6 | Vertical permeability coefficient/(cm/s) | K× (10-¹~10-), where K=1.0~9.9 | |||||||||
7 | Width deviation rate /% ≥ | -0.5 | |||||||||
8 | Unit area mass deviation rate /% ≥ | -5 | |||||||||
9 | Thickness deviation rate /% ≥ | -10 | |||||||||
10 | Thickness coefficient of variation (CV)/% ≤ | 10 | |||||||||
11 | Dynamic perforation | Puncture hole diameter/mm ≤ | 37 | 33 | 27 | 20 | 17 | 14 | 11 | 9 | 7 |
12 | Longitudinal and transverse fracture strength (grab method)/kN ≥ | 0.3 | 0.5 | 0.7 | 1.1 | 1.4 | 1.9 | 2.4 | 3 | 3.5 | |
13 | Ultraviolet resistance (Xenon arc lamp method) | Longitudinal and transverse strength retention rate% ≥ | 70 | ||||||||
14 | Ultraviolet resistance (fluorescence UV lamp method) | Longitudinal and transverse strength retention rate% ≥ | 80 | ||||||||
Product Applications：
1. Road and traffic engineering: laying between the subgrade and base of highways and railways, isolating the subgrade soil and pavement materials, preventing subgrade soil from polluting the base, while promoting subgrade drainage, improving the bearing capacity and service life of roads; It can also be used for basic treatment of airport runways, parking lots, and other areas.
2. Water conservancy and municipal engineering: In dam, channel, and river improvement projects, it is used to isolate different fillers to prevent piping and infiltration damage; It plays a filtering and drainage role around municipal drainage pipelines and at the bottom of sedimentation tanks in sewage treatment plants, ensuring the stability of the engineering structure.
3. Construction and mining engineering: In the treatment of building foundations, isolate the foundation soil from the backfill material to avoid uneven settlement of the foundation; In mining tailings ponds, storage yards, and other projects, it is used to isolate tailings from surrounding soil, prevent pollution from spreading, and assist in drainage.
4. Environmental Protection and Agricultural Engineering: In the anti-seepage system of landfills, as a protective layer and a filtering layer, it isolates garbage from the anti-seepage membrane to prevent the anti-seepage membrane from being punctured; In agricultural irrigation channels and reservoir anti-seepage projects, auxiliary drainage and isolation are used to improve water resource utilization efficiency.
Separation Geotextile has been widely used in various fields such as roads, water conservancy, construction, and environmental protection due to its excellent isolation, filtration, and drainage performance, outstanding mechanical and weather resistance characteristics, as well as convenient construction and economic advantages. It effectively solves problems such as material mixing, poor drainage, and structural instability in engineering through scientific and reasonable material design. It not only significantly improves the quality and safety of engineering, but also reduces construction and maintenance costs. It is a high-quality geotechnical material that combines functionality and economy, providing solid support for the long-term stable operation of various projects.
