is better, woven or nonwoven geotextile?

When you&#;re working on a new construction or landscaping project, picking the right geotextile fabric can have a huge impact on its long-term stability. Both woven vs non-woven geotextile fabrics have their own unique set of benefits and limitations. That&#;s why it&#;s essential that you choose the fabric that aligns with your ultimate goals.

If you want to learn more, please visit our website difference between woven and non woven geotextile.

Here&#;s what you need to know about woven vs non-woven geotextile fabric so that you can be prepared for your next undertaking.

What Is Woven Geotextile Fabric?

Woven geotextiles are manufactured using individual threads of fabric that have been tightly wound together, creating an ultra-durable finished project. This makes them a great choice for separation and reinforcement projects that require heavy-duty tensile strength.

In most cases, woven geotextile fabric is made using either fibrillated yarn, slit films, or other construction-grade fibers. This extreme durability prevents erosion and punctures to the fabric surface but also limits filtration. That&#;s why woven geotextile is not recommended for projects that require permeability, such as drainage projects.

Recommended applications for woven geotextile fabric&#;

• Beneath driveways and parking areas
• Road constructions, both temporary and long-term
• High-load capacity areas

What Is Non-Woven Geotextile Fabric?

Alternatively, non-woven geotextile fabric is made using a combination of short and long threads that are forged together through needle punching. This practice leaves room for water and other natural elements to be filtered out through the fabric, which is why non-woven geotextile fabric is the top choice for construction projects that require filtration and drainage systems.

Just like woven geotextile fabric, non-woven fabric can also support a heavy load capacity. Sometimes, additional heat will be applied to the fabric to increase its overall strength. Non-woven geotextile fabric is often made using synthetic fibers like polyester or polypropylene.

Recommended applications for non-woven geotextile fabric&#;

• Covering or wrapping french drains
• Separation filtration for construction and landscaping projects
• Gravel driveways
• Road construction in wet climates

Choosing Between Woven vs Non-Woven Geotextile Fabric

As you can see, these two types of geotextiles are both great options for a variety of construction projects. But before you decide which fabric is right for you, take the time to evaluate the needs of your project and determine which features will benefit you the most.

Woven Geotextile Fabric:

• Ideal for heavy load capacity
• Puncture and erosion-resistant
• Durable for long-term reinforcement
• Not considered permeable for filtration

Non-Woven Geotextile Fabric:

• High flow-through rate for filtration and drainage
• Can have increased strength for heavy loads
• Helps prevent erosion and slopping
• May not be puncture-proof for long-term use

Where To Find The Best Geotextile Fabrics?

No matter what type of project you&#;re working on, Performance Footing is here to help.

As a leading supplier of both woven and non-woven geotextile fabrics, our team is ready to assist you with picking the right material for construction projects of every scale.

Contact us to learn more about our professional-grade geotextile fabrics today.

By Joshua Venters, Engineering Business Manager, Layfield Group

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The use of geotextiles has steadily grown over the past century. Geotextiles were initially derived from existing textiles that were readily available on the market, such as carpet backing and upholstery fabric. Manufacturers have modified geotextiles to provide increased benefits to roadway construction. While there are two main types (wovens and nonwovens), there is often still some confusion as to which product to use on your jobsite. Common misconceptions about the functions of a woven geotextile vs. a nonwoven geotextile can often lead to added confusion. This article will go into detail about the two main types of geotextiles and their functions. 

Woven geotextiles

First-generation woven geotextiles were made of slit tapes. Slit tapes are extruded flat yarns woven at 90-degree angles to yield a durable textile. Due to their wide smooth surface, they have very poor water permittivity and low soil interaction properties. These factors make them a poor choice for civil applications, especially in wet conditions. 

Over time, the development of high-performance woven geotextiles has led to a more effective material. These developments have improved flow rates and higher interaction coefficients, making them much more suitable for civil applications by providing separation, confinement and reinforcement. They also allow for improved filtration and drainage. 

Nonwoven geotextiles

Similar to wovens, nonwoven geotextiles are made using a synthetic textile. However, they have a more random structure that is produced by the interlocking of fibers. Wovens and nonwovens are used in similar applications, leading to confusion. The easiest way to identify the difference between a woven and a nonwoven geotextile is by its physical attributes. Nonwoven geotextiles look and feel like felt, with the characteristic &#;fuzzy&#; look to the material.

When it comes to the manufacturing of a nonwoven geotextile, there are many different methods used today. The most common manufacturing method is by needlepunching. Needlepunched nonwoven geotextiles are made by taking a large number of small fibers and using a barbed needle to interlock the fibers together. Nonwoven geotextiles are generally used to provide separation, combined with filtration and drainage functions when used in a civil application.

The differences between woven and nonwoven geotextiles can be challenging to determine when looking at material specifications. Generally, wovens have higher strength values, while nonwovens have higher flow rates and permittivity. The easiest way to distinguish the difference between the two materials is by starting with elongation. Nonwovens will have much higher elongation than a woven. A nonwoven specification will list the elongation as being greater than 50%, while a woven will be listed as between 5% and 25%, if listed at all.

The following chart shows two examples of standard specifications for traditional woven and nonwoven materials. There are significant differences regarding their elongation and permittivity. However, tensile strengths are similar, given they are manufactured from similar materials. All these items are important to consider when choosing the correct type of geotextile for your application. It is essential to make sure you are using the right product for the right reasons.

Weight of nonwovens

When looking at the differences between woven and nonwoven geotextiles, another point of confusion is their weight. In both examples below, the weights are not listed. The weight of a woven geotextile is rarely specified. The reason is that they are typically used to provide separation and reinforcement, and are not dependent on the weight.

Conversely, the weight of a nonwoven geotextile is often specified, which is why you will typically hear or say, &#;I am looking for an 8 ounce, 4 ounce, 10 ounce, etc.&#; For a long time, nonwoven geotextiles have been measured by their weight, meaning the finished product would be 8 ounces per square yard (33.9 g/m2). The remainder of the specifications, which include the strength, puncture, etc., would be a direct result of the product weight.

As the use of geotextiles has grown and developed, the manufacturing processes have changed as well. Now, most nonwovens can be manufactured with a lighter weight and still achieve the same strength properties, leading to reduced costs. There are always exceptions, such as in the case of using nonwovens as cushion geotextiles underneath geomembranes. In such instances, the puncture, weight and thickness properties are more critical than the permittivity and strength properties.

Woven

Nonwoven

Comparing specifications of a woven and nonwoven. In this case they have similar strengths, however there are large differences in elongation and permittivity.

This article first appeared on the Layfield Group Knowledge Center website, www.layfieldgroup.com/Knowledge-Center.

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