Geotextile has excellent filtering, isolation, reinforcement and protection, high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance, and corrosion resistance.
Non-woven geotextile is made of filaments or short fibers that are laid out into a net through different equipment and processes. After needle punching and other processes, different fibers are interwoven with each other, entangled and fixed to standardize the fabric, and make the fabric soft, It is full, thick and stiff to meet the requirements of different thicknesses. The non-woven geotextile has a good fabric gap and good adhesion and separation. Because the fiber is soft, it has a certain resistance to tearing and has a good deformation adaptability. At the same time, it has a good flat drainage ability. The surface is soft and has a good friction coefficient. It can increase the adhesion of soil particles. It can prevent fine particles from passing through and prevent the loss of particles while removing excess water. The surface is soft and has a very good friction coefficient. Good protection capabilities. According to the length of the filament, it is divided into filament non-woven geotextile or short filament non-woven geotextile. They can play a very good role in filtering, isolation, reinforcement, protection, etc., is a widely used geosynthetic material. The tensile strength of filament is higher than that of short filament, and it can be selected according to specific requirements.
Mainly high-quality polyester staple fiber (fiber 4-9dtex, length 50-76mm) can also be produced according to requirements of polypropylene, nylon, vinylon or mixed fiber needle punched non-woven geotextile. It has the functions: 1. Isolation; 2. Filtration; 3. Drainage; 4. Reinforcement; 5. Protection; 6. Enclosed.
Because non-woven geotextile has the above six functions, it can be widely used in railways, highways, sports venues, dams, hydraulic constructions, tunnels, beaches, reclamation, environmental protection and other projects.
Features:
The raw materials used are mainly polyester, followed by polypropylene and vinylon, with a unit weight of 100-800 g/m2. In addition, it can also be used as a soil-reinforced material to reinforce soft foundations or build light retaining walls. At the same time, it can also reduce the pore water pressure under the embankment. The emergence of non-woven geotextiles is later than that of woven geotextiles. The main production methods of non-woven geotextiles are spunbond and needle-punched. The needle-punched method accounts for a larger proportion in my country. East One, Three, Seven, Nine, One. Three one. Two, one ba, ba min. It has been widely used to solve the problems of roadbed subsidence and mud boiling. It is used for the drainage system of earth-rock dams, underground drainage pipes, soft foundation reinforcement, and the slope protection and shoulder pads of various embankments. Therefore, the development speed of non-woven geotextile is very fast, and it has become the main component of geotextile. The non-woven geotextile has a large elongation, can adapt to large deformation, can be made into appropriate size pores according to needs, and has good penetration and exudation in both the horizontal and vertical directions