Why geotextile is needed
Geotextile is a versatile material that can extend the service life of road surfaces, strengthen the foundations and improve the drainage system for water drainage. It is widely used in various fields - the material has taken root in such industries as landscape design and gardening, construction of buildings and roads. In addition, it is quite possible to find it in underground structures - during the construction of tunnels, as well as other objects: dams, parking lots, airports.
According to the method of manufacture , two types of geopolotn can be distinguished: woven and non-woven. More common is the second type, which is produced by the needle-punching method. There are also canvases made using the thermal and adhesive method.
At the beginning of the material manufacturing process, initial preparation is done. Polyester fibers are delivered to production in the form of compressed bales. This fiber should be fluffed. The process itself has been automated for a long time and is carried out on a conveyor belt, where the tape carries the material through all stages of processing in a short time. The resulting clumps are already divided by means of an air jet into autonomous threads. The fluffed fiber goes further, where automation makes a finished cloth out of it. The threads in this product are arranged randomly. The resulting canvas moves to a needle-punching machine, which, with the help of thousands of special needles with hooks at the ends, punches it, then confuses the threads, pulling them. Thus, a denser canvas structure is obtained.
This technique allows, ultimately, to obtain a material that has excellent throughput, but is completely immune to decomposition and the action of aggressive substances.
Thermally bonded geotextile is also quite popular. As can be understood from its name, the polymer threads are bonded in it under the influence of high temperature. Such a material also passes water, but only in the transverse direction. The distinctive quality of this material is its high elasticity and strength, which makes it possible to use such geotextiles in places subject to increased stresses. In laboratory conditions, it was found that an ordinary strip of thermally bonded fabric easily withstands 240 kg at break. Official data confirm that loading geotextiles up to 24 t/m2, the material remains stable.
Where is geotextile used?
The unique properties of this material allow its use in a wide range of works.
Geotextiles are increasingly found in horticultural farms. The material does not lose its properties upon contact with the soil, so it is laid between layers of fertile and depleted soil to prevent its mixing, and experienced gardeners have noticed the ability of geotextile to protect plants in winter. So, the material has found another application - they shelter trees and shrubs in the cold.- The expediency of laying geotextile fabric in road construction has also been proved. According to the calculations of engineers, the service life of such a coating increases by about ten times. Today, this is a justified rational decision, because the roadbed has a much higher cost, and it is very expensive to change it regularly, while the use of a simple substrate significantly increases its service life.
- Geo-field is used to separate different layers. The thermally bonded web divides the point loads into a total area. So, the asphalt pavement will serve for a long time even in places where vehicles that belong to the heavyweight often travel. When a geotextile interlayer is used, the impact of the wheels is smoothly distributed over the entire surface area, which reduces the load on the crushed stone, and it is not pressed deeper into the sandy layer and the soil. Also, the use of this material is relevant on less loaded areas - country and garden paths. The thing is that the load on such a canvas is relatively small, respectively, geotextile allows you to minimize the amount of asphalt required for laying.
- When designing sidewalks and laying paving slabs, geotextile can easily cope with a common problem when freshly laid tiles slowly go down under load. The substrate of geotextile fabric will help to preserve the aesthetics of the pavement, prevent sagging and the appearance of cracks.
Based on the above, it can be noted that the demand for geotextiles in various fields of activity is due to the high quality of the material, affordable cost and high tensile strength and penetration. Nonwoven geotextile is environmentally safe, does not rot and is resistant to aggressive substances contained in soil and water.
In short, geotextile canvas has found its application in many spheres of human life. With the help of this material, it is easy to equip a plot, save on the costs of bulk material, and also protect the territory from weeds.
