Different Important Functions of Geotextile

Last Updated on 13/12/2020

What are the Functions of Geotextile?

Geotextile or commonly known as Geosynthetics is a material part of the textile discipline which is always used in some civil construction. The use of Geosynthetics is often applied by civil engineers in engineering a media trait, for example land. Geotextile is an important brach of technical textile. The nature of the textiles used is based on the polymer in which the structure of the atom is made in such a way that it obtains advantages and functions accordingly. According to civil engineering experts, Geotextile in the future will replace more of the functions of metals such as iron in engineering construction such as buildings, water dams, foundations, bridges and so on. For those of you who are curious about the important functions of Geotextiles, we provide a summary of the information below.

functions of geotextile in road construction
Fig: The function of geotextile in road construction

The main functions of the use of this geotextile is to spread the burden on the condition of soft soils to be more evenly distributed. It is expected that with the use of this geotextile, the soil will be easier to support the construction that will be built on it. Usually, the use of geotextiles for stabilization is more widely applied to the construction of highways, railroad tracks, coastal reclamations, landfills and so on. Simply stated, if the land which later becomes the main foundation is sturdy and strong, then the existing building above is expected to last longer.


Another function of the use of geotextiles as a substitute for iron is as a binder in the construction of the shoulder of the road and slopes, more simply is to strengthen the walls of the soil retaining. Not all places that are building locations have strong soil properties, it is feared that they will not be able to withstand erosion. One of the functions of this reinforcement is applied a lot when making roads and has to cut the cane or the existing land beside. In addition, this reinforcement is widely applied to slopes with geobags or gabions and modular blog walls. Examples of the most widely used trademarks are UX Terra Grid and PET Bx Terra Grid.

As Filtration

The function of the Geotextile is as filtration to prevent the migration of particles from mud or soil coupled with water flow. The application of this function is more like a large bag, then can be filled with materials such as mud or sand. Many are applied to reduce the abrasion of beaches, dams or rivers. Examples of use such as Revetment, Drainage pipes, Reclamation, Dredging and Groin.

As Separation

In the big Indonesian dictionary, the definition of Separation itself is better known as the separation of components from a mixture, so that it becomes individual fractions. Whereas in the function of Geotextiles, this separation is as a separator between different soil patches (granulation). Not only soil, but any material that must be separated without preventing water circulation. Separation is widely used in many ways such as landfill, road construction. making railroad lines and much more.


The next function of the Geotextile is as Drainage which is to flow water vertically and horizontally directly from the ground. Vertical water flow has the aim to drain the water that is in the subsoil, it is hoped that there will be effects such as consolidation. Whereas for irrigating water with a horizontal system, the aim is to flow water from the ground surface to the final drainage channel. The application of Drainage itself is more to use such as sports stadiums, golf courses, airports, embankments to beach reclamation.

As a impermeable layer

Actually this function is the opposite of filtration which in principle prevents small particles that can be flowed, while for the function of the second layer it is more complete. This impermeable layer is able to prevent the seepage of material or undesirable liquid into the soil at all, the purpose of this is so that the soil does not experience contamination (Conditions where mixing occurs, both good mixing and bad mixing, in many conditions, more contamination bad meaning / negative). The application of this function is mostly used for artificial lakes, landfills, waste / non-waste ponds in several industries which are likely to have hazardous toxic materials, tunnel construction, tailings and fly ash and coal stockpiles.

As a wrapping

Another function you want to know is as a Wrapper, it can be used to wrap sand or mortar and can be used to form a geotextile pad. The use of construction materials like this is more suitable for areas or locations that are close to the source of sand or its location far from the stone quarry. Examples of applications for use are the Groin function, breakwater and others.

Retaining Erosion

It is important for you to know that some soils have particles that are very easily carried by ar, especially during high rainfall which makes this condition unavoidable. However, thanks to the use of Geotextile which has a function as a barrier to erosion, it is able to protect the soil surface from erosion caused by high rainfall and water flow at the surface of the soil. Use applications such as making golf courses, cliffs and road slopes.

This information about the functions of Geotextile or Geosynthetics that you might want to know. Thanks.

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