What are the types of geotextiles?

Geotextiles are made of polymers such as polypropylene or polyester. They are divided into 3 categories based on how they are prepared. In this article, we try to introduce a variety of geotextiles.

۱) Woven fabric geotextile

۲) Ubafteh Geotextiles

۳) Knitted geotextile

Geotextile Woven Fabric

One of the types of geotextile is woven geotextile using interconnected fabric strips that have strength and stability for the required project. Woven geotextiles are made of polypropylene strips that can wither a lot of stress.

They are ideal for separation and reinforcement purposes because they are almost impenetrable. Woven geotextiles can be made from different materials. But the most common is a texture or a combination of yarn.

Fabrics look like plastic sheets, while the texture is visible with close inspection. They are made by adopting techniques that resemble ordinary shirt fabrics.

This type of characteristic of two sets has parallel yarns or yarns. Yarn that moves along the length is blurry and one perpendicularly called it texture.

Woven Geotextile

Woven Geotextile

Ubafteh Geotextile

Venist geotextiles are made of continuous yarn or short main fibers. Fiber bonding is performed using thermal, chemical or mechanical techniques or a combination of techniques.

The geography of the fibers obtained from mechanical connection or chemical or thermal bonds have a thickness of 0.5 to 1 mm. While chemical nonwovens are relatively thick and usually 3 mm thick, respectively.

Ubafteh Geotextile

Ubafteh Geotextile

They are mainly used for separation, protection and treatment purposes in road maintenance, railway, landfill or civil and environmental projects.

The production method uses a process with endless strings to ensure the use of high quality materials. Non-woven geotextiles are resistant to all chemicals and biological media that occur in soil and construction materials. It cannot be solved by water and makes it safe for groundwater.

They are also equipped with stabilizers to have extensive resistance to direct sunlight.

Venist geotextiles are made of continuous yarn or short main fibers. Fiber bonding is performed using thermal, chemical or mechanical techniques or a combination of techniques.

The geography of the fibers obtained from mechanical connection or chemical or thermal bonds have a thickness of 0.5 to 1 mm, while the chemical nonwovens are relatively thick and usually 3 mm thick, respectively.

They are mainly used for separation, protection and treatment purposes in road maintenance, railway, landfill or civil and environmental projects.

The production method uses a process with endless strings to ensure the use of high quality materials. Non-woven geotextiles are resistant to all chemicals and biological media that occur in soil and construction materials. It cannot be solved by water and makes it safe for groundwater.

They are also equipped with stabilizers to have extensive resistance to direct sunlight.

Knitted Geotextile

Other types of geotextiles are knitted geotextiles that are constructed by the process of connecting a series of yarn rings together. All knitted geosynthetics are formed using knitting techniques in conjunction with some other geosynthetic manufacturing methods such as knitting.

The difference between different types of woven and nonwoven geotextiles

Polyspun Geotextile

Geotextiles are ubastiles, the main function of which is separation. While they are permeable and provide drainage, they offer no reinforcements for a project. Polysapoon geotextiles are called longevity and are mostly used as weed barriers.

Spunbond Geotextile

In the world of fabric production, it is the fastest method of producing nonwoven fabrics. During the process, extruded strands are rotated on a belt and bonded using heated rolls. Fabrics such as polypoon geotextiles provide drainage, but have no reinforcement. They are called weights and are commonly used as barriers to weeds or drainage fabrics.

How geotextile types work in each program is defined by six discrete functions:

Separation, Separation

Geotextile separation function is mainly used in road construction. Geotextile prevents the mixing of two adjacent soils. For example, by separating the underwater soil from the materials of the base path, the geotextile maintains drainage and the strength characteristics of the grain material.

Some applicable areas include:

  • Between underpass and stone base on unseolved roads and asphalt and air fields
  • Between underpasses on railways
  • Between landfill sites and stone base courses
  • Between geomembrane and sand drainage layers
  • Filtration

Equilibrium of geotextile system to soil which allows sufficient process of liquids with soil loss enclosed on the surface of geotextile plate. Porosity and permeability are the most important characteristics of geotextiles that include permeability. A common application that shows the filtration function is the use of geotextile in the drainage of the edge of the sidewalk.

Strengthen

Introduction of geotextile in soil increases tensile endurance of soil of the same amount of steel in concrete. The necessary strength in the soil is due to the introduction of geotextile by the following three mechanisms:

  • Side limitation through surface friction between geotextile and soil/materials
  • Forcing potential bearing surface failure to create a higher shear strength level
  • Membrane type supports wheel loads

Sealing

A layer of ubading geotextile is impregnated between existing and new asphalt layers. Geotextile absorbs asphalt to become a waterproof membrane, minimizing the vertical flow of water into the sidewalk structure.

Application of geotextile types in construction

The geotextile range in the field of engineering is very wide. Geotextile application is referred to as the nature of the work.

Geotextile

Geotextile strengthens soil by increasing tensile strength.

Road Work

Geotextile types are widely used in road construction. By adding tensile strength to it, it strengthens the soil. It is used as a quick dewaterization layer on the side of the road.

In railways, woven fabrics or nonwoven fabrics are used to separate soil from under the soil, without preventing groundwater from circulating where the ground is unstable. Covering individual layers with fabric prevents materials from wandering from the side due to shock and vibration on moving trains.

Agricultural

It is used to control flowers. To improve muddy paths and trails it is used by cattle or light traffic, nonwoven fabrics are used and folded with overlap to include a pipe or a dust mass.

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