2010 Properties Of Geotextiles

Geotextiles are industrial textiles, which include nonwoven geotextiles, Geotextiles and warp knitted composite geotextiles.

These three kinds of geotextiles have different characteristics because of their different manufacturing processes.

Non woven geotextiles have good adhesion, good stability of Geotextiles and strong tear resistance of warp knitted composite geotextiles.

Non woven geotextiles are made of filament or staple fibers through different equipment and processes. They are netted by needling and other processes. Different fibers are intertwined with each other. They are intertwined and fixed to make fabrics standardized, so that the fabrics are soft, plump, thick and stiff, so as to meet different thickness requirements.

Non woven geotextiles have good fabric clearances, good adhesion, softness, tear resistance, impervious membrane force, good deformation adaptability and flat drainage capacity. The surface is soft and many gaps have a good friction coefficient to increase the adhesion ability of soil particles. It can prevent small particles from blocking the loss of particulates and eliminating excess moisture. The surface is soft and has good protection ability.

According to the length of the filament, it is divided into filament nonwoven geotextiles and short filament nonwoven geotextiles.

They can play a good role in filtration, isolation and protection. They are widely used geosynthetics.

The tensile strength of filaments is higher than that of short wires, which can be selected according to specific requirements.

A geotextile is made up of at least two sets of parallel yarns (or flat yarns). A group of yarns is called longitudinal yarns along the longitudinal direction of the looms, and the other is a pverse arrangement called weft yarn.

Weave warp and weft yarn together with different braiding equipment and technology, and weave them into cloth. They can be knitted into different thickness and density according to different use ranges. Generally, Geotextiles have relatively strong tensile strength (longitude over latitude) and have good stability.

According to the weaving process and the warp and weft difference, they are divided into two categories: reinforced geotextiles and non reinforced geotextiles. The tensile strength of reinforced geotextiles is much larger than that of geotextiles.

Geotextiles are generally applied to geotechnical engineering reinforcement reinforcement, the main function is reinforcement and enhancement, with plane isolation and protection function, do not have flat drainage function can be selected for specific purposes.

Warp knitted composite geotextile is a new type of geotextile made of glass fiber (or synthetic fiber) and reinforced with staple fiber needled nonwoven fabric.

It is different from ordinary woven fabric.

Its main feature is that the intersection point between the warp and the weft is not curved, and each of them is in a straight state.

Using bundled wires to fasten them firmly, they can bear external forces more evenly, and when the external force is tearing material, the yarn will be gathered along the initial crack to increase the tear strength.

When warp knitted is used, the warp knitted bundles are used to repeatedly pass through the fiber layer between warp, weft and staple needled geotextiles, so that the three can be knitted together.

Therefore, warp knitted composite geotextiles have the characteristics of high tensile strength, low elongation and needle punched nonwovens.

Therefore, warp knitted composite geotextiles can be used for reinforcement, isolation and protection, and have the function of water gathering and overflow in three-dimensional integral direction and level.

Because its solid matrix and pores are continuous phase and become porous filtration effect, it is a multifunctional geosynthetics, and is a high level geosynthetics substrate in the world.