The Complete Guide for Nonwoven Geo Fabric

Geotextiles are permeable fabrics that are mainly used in civil engineering projects including the construction of roads, airfields, railroads and embankments. Geotextiles are permeable fabrics that are usually made from polypropylene or polyester. Since these textiles are a big part of agriculture and ecosystem management, there is a demand for nonwoven Geotextile in India. These fabrics are especially useful to control erosion and maintain soil stability. This blog will give you an overview of nonwoven Geo Fabric so that you get a better idea of the Geotextile industry.

What are the Types of Geotextiles?

Since geotextiles are made for specific practical reasons; there are different types of geotextile fabrics that are designed for different purposes. However, the general understanding is that these fabrics can be divide into two main categories; Woven Geotextiles and Nonwoven Geotextiles.

1. Woven Geotextiles

Woven geotextiles are made using a unique blend of synthetic polymers that are woven together. The process of manufacturing woven geotextiles is very similar to most fabrics. Even though woven geotextiles usually take a much longer time to make, they are popular because they have a high tensile strength and load capacity. If your project needs sturdy and durable material then your best option would be to go for woven geotextiles.

The strength and durability features play in key role in the use of woven geotextiles for support and stabilization. Woven geotextiles are great for holding earth and soil in place and creates a stable base for construction.

2. Non-Woven Geotextiles

Non-woven geotextiles are different from woven geotextiles and fabrics because they have the texture of felt. One of the biggest benefits of using non-woven geotextiles is that they are quicker and cheaper to create. That is one of the main reasons nonwoven Geotextile supplier in delhi ncr is booming. Since the main feature of the fabrics is that it absorbs water easily it is primarily used to reduce the effects of water damage and for erosion control.

What are Nonwoven Geo Fabrics?

Basically nonwoven geo fabrics are defined as a sheet or a web of directionally (or randomly) oriented fibres which are bonded through friction, cohesion, or adhesion.

The process for nonwoven Geo Fabric formation can be split into a two stage process: web formation, which involves aligning the fibres with orientation characteristics. The second stage is bonding these fibres by mechanical, thermal, or chemical means.

Manufacturing Nonwoven Geotextile Fabrics

The process of manufacturing nonwoven geotextile fabrics has led to the classification of different nonwoven structures, i.e. carded, air laid, spunlaid, needle punched, adhesive bonded, thermal bonded and so on. Here’s a look at some of the important processes involved when manufacturing nonwoven geotextiles:

·        Spinlaying: This process includes filament extrusion, drawing, and bonding. It is worth noting that spunlaid nonwovens are generally self-bonded but also be bonded by thermal, chemical, or mechanical means.

·        Chemical bonding: This process involves the use of a chemical binder such as glue, rubber, latex or synthetic resin. The binder helps to bond the filaments together to produce chemically or adhesive bonded nonwoven geotextiles.

·        Mechanical bonding: There are two ways of mechanical bonding, mainly needle punching and hydro entanglement. Needle punching means the mechanically interlocking fibrous webs using barbed needles. On the other hand, hydro entanglement technique uses high-pressure rows of water jets to reorient and entangle the loose array of fibres in order to create self-locking and coherent fabric structures.

·        Thermal bonding: Some types of geotextiles are manufactured by applying thermal or heat energy to the thermoplastic component present in the polymer. There are two main ways of thermal bonding, either through-air bonding or calendaring. Air bonding is wheb the fibrous web is passed in a heated air chamber, while calendaring is when the fibrous web is passed through a heated pair of rollers.

Different Uses for Geotextile Uses

Thanks to its ability to separate, filter, reinforce, protect, or drain, geotextiles have numerous benefits in geotechnical and environmental engineering design. Here’s a brief look at the different uses of Geotextile:

·        Coastal engineering and construction site silt fences.

·        Used for sand dune armoring to protect against storm surge and flooding.

·        Construction of large sand-filled container (SFC) to prevent storm erosion.

·        Geotextiles are used as matting to stabilize flow in stream channels.

·        Can help to contain explosive debris when used with steel wire fencing.

·        Can be used as cost efficient alternative to soil nailing in order to improve soil strength.

Since geotextiles have substantial mechanical strength they are widely used for erosion control, slope stabilization and bioengineering. Another benefit of using geotextiles is that they are usually environmentally friendly and certain types of fabrics degrade into humus thus enriching the soil.

Read More:

Geobag Manufacturer in India