Geotextiles, also known as geotextile fabrics, are permeable geosynthetic materials made by needle-punching or weaving synthetic fibers. Geotextiles are one type of new material geosynthetic, coming in fabric form, typically with a width of 4-6 meters and a length of 50-100 meters.
Product Categories
One, Short-fiber needle-punched nonwoven geotextile
Manufactured from short fibers using nonwoven production equipment, the process includes opening, carding, entanglement (short fibers intertwine), laying out (standardized entanglement fixation), and needle-punching to form a fabric. Features: The product boasts acid and alkali resistance, corrosion resistance, aging resistance, high strength, stable dimensions, and good filtration properties. Applications: Primarily used for engineering reinforcement, isolation, reverse filtration, and drainage, widely employed in water conservancy, highway, and railway sectors.
Short Fiber Geotextile Test Criteria
Polyester Long Fiber Geotextile
Polyester long-fiber geotextile is directly made by spinning, needle-punching, and consolidating using the polyester method. Product specifications range from 80-800g/㎡ for any selection. It is a type of geosynthetic material used in rock and soil engineering and civil engineering, manufactured through the process of webbing and consolidation of polyester long fibers, forming a three-dimensional fiber arrangement. In addition to its excellent mechanical properties, it also boasts good longitudinal and transverse drainage performance, as well as good extensibility and high chemical stability against biological degradation, acidity, alkalinity, and aging.
Polyester Long Fiber Geotextile Test Indicators
Polyester Filament singed geotextile
This product features a sintered layer on the base of polyester filament felt geotextile, achieving the purpose of surface agglomeration-free non-woven geotextile while maintaining the original properties of the non-woven geotextile. It is designed and developed in accordance with the current "Technical Specification for Sanitary Landfill of Domestic Waste" CJJ17-2004 standard, specifically for anti-slip design of the slopes of waste sanitary landfills. It effectively prevents the damage to synthetic fibers from ultraviolet rays, enhancing the geotextile's resistance to aging; the textured single (or double) side of the geotextile provides excellent application performance.
It features the following characteristics:
(1) Widely used for enhancing asphalt, cement concrete pavements, and subgrades. Suitable for both rigid and flexible pavements, it can reduce construction costs, extend service life, and prevent road reflection cracks compared to traditional pavements.
(2) The product has an appropriate thickness, easily combines with asphalt pavements, and forms an isolation layer when combined with adhesive oil, providing both waterproofing and thermal insulation properties.
(3) Lightweight with high strength. Tensile strength is all ≥8 KN/m, elongation is 40~60%, fully meeting the technical requirements for geotextiles in JTJ/T019—98 "Technical Specification for Tensile Properties of Highway Geosynthetic Materials."
(4) Surface is rough and not slippery. During installation, the rough side of the surface, which has been specially treated, should be placed upwards to increase friction and bond strength, preventing the material from being lifted or damaged by wheels during construction. Additionally, it helps to reduce the risk of slipping for vehicles and pavers on the surface.
(5) Features UV resistance, cold resistance, chemical corrosion resistance, and biological degradation resistance.
(6) Easy to install with excellent application results. Generally, the fibers of geotextile are easily picked up by vehicle tires, causing thread entanglement. In severe cases, they can even be wrapped around, leading to displacement and structural damage of the geotextile.
Four: Nonwoven Geotextile
Nonwoven geotextile (polyester geotextile, nonwoven geotextile) is also known as geotextile fabric, which is a permeable geosynthetic material made by needle-punching or weaving synthetic fibers. The finished product is in the form of fabric, mainly composed of polyester short fibers, with a general width of 4-6 meters and length of 50-100 meters. It is widely used in engineering projects such as railways, highways, sports venues, embankments, hydraulic structures, tunnels, coastal roads, reclamation, and environmental protection.
Five, Polypropylene Geotextile
Polypropylene geotextile boasts excellent permeability, filtration, durability, and is widely used in railway, highway, sports facilities, embankments, hydraulic structures, tunnels, coastal areas, reclamation, and environmental protection projects. It mainly includes short-fiber needle-punched nonwoven polypropylene geotextile and split-filament woven polypropylene geotextile.
Polypropylene Geotextile Functions:
Utilizing the good breathability and permeability of polypropylene geotextile, it allows water flow while effectively retaining soil erosion.
Effectively dissipate, transfer, or decompose concentrated stresses to prevent soil from being damaged by external forces.
Prevent the mixing of sand, gravel, soil, and concrete between layers.
The mesh is less prone to clogging, as the irregular fiber tissue forms a mesh-like structure with elasticity and mobility.
High permeability, maintaining excellent permeability under soil and water pressure.
Corrosion-resistant, made from raw materials such as polypropylene or polyester synthetic fibers, acid and alkali-resistant, non-corrosive, non-rodent, and antioxidant.
Simple construction, lightweight, easy to use.
