What are the differences between nonwoven geotextile and woven geotextile fabric?

Geotextile also named geotextile fabric, is a permeable geosynthetic material. It is made of synthetic fibers by needle punching or weaving process. Geotextile is cloth-like, a width of 1-6 meters. Geotextiles are divided into woven geotextiles and nonwoven geotextile fabric.

The Same geotextile applications of nonwoven geotextile and woven geotextile fabric:
1: Isolation
geotextiles are used for building materials with different physical properties materials (such as soil and sand, soil and concrete, etc.) for isolation. Make two or more materials do not mix, keep the material the overall structure and function of the material.
2: Filtration (reverse filtration)
When the water flows from the fine soil layer into the coarse soil layer, the geotextile has good air permeability and water permeability,the  geotextile fabric are used to make the water flow through, and effectively intercept soil particles, fine sand, small stones, etc., to maintain the stability of soil and water engineering.
3: Drainage
geotextile fabric has good water conductivity, geotextile can become a drainage channels inside the soil, The remaining liquid and gas are discharged.
4: Reinforcement
geotextile fabric is used to enhance the tensile strength and anti-deformation ability of soil, enhance the stability of building structure, and improve the stability of building structure.
5: Protection
When the water flow go through the soil, the geotextile fabric effectively spreads, transmits or decomposes the concentrated stress, prevents the soil from being damaged by external forces, and protects the soil.
6: Anti-puncture
High tensile strength, good permeability, air permeability, high-temperature resistance, freezing resistance, aging resistance, corrosion resistance, and no moth-eaten.

The differences between nonwoven geotextile and woven geotextile:

Woven geotextile fabric:

Woven geotextiles are made of polypropylene or polyester yarns, and are composed of at least two sets of parallel yarns (or flat yarns). The lateral arrangement is called the weft. The woven geotextile warp and weft yarns are intertwined with different weaving equipment and processes to form a cloth shape, which can be woven into different thicknesses and densities according to different scopes of use. Generally, the woven geotextiles are thinner and have a strong tensile strength in both vertical and horizontal directions. Intensity (longitude is greater than latitude), with good stability performance.

pp woven geotextile

pet woven geotextile 200-200

Nonwoven geotextile fabric:

Similar to wovens geotextile, nonwoven geotextiles are made of  synthetic textile fiber too. However, nonwoven geotextiles have a more random structure which is produced by the interlocking of fibers. Wovens geotextile and nonwoven geotextile have similar applications, easy to confuse them. The easiest way to know the difference between woven geotextile and nonwoven geotextile is by its physical features. Nonwoven geotextiles look and feel look like a felt.

The most common manufacturing method of nonwoven geotextile is by the needle-punching process. Needle-punched nonwoven geotextiles are generally used to provide separation, combined with filtration and drainage functions when used in a civil application.

The differences between woven geotextile and nonwoven geotextiles can be difficult to determine when looking at the geotextile specifications. Generally, woven geotextile have higher tensile strength, while nonwoven geotextile have higher flow rates and permittivity. A simple way to know the difference between the two geotextile materials is by checking with tensile elongation. Nonwoven geotextile fabric has a much higher elongation than woven geotextile. A nonwoven geotextile elongation is greater than 50%, while a woven geotextile can have a  5% and 25% elongation.nonwoven geotextile