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January 16, 2023

The Importance of Geotextiles in Road Construction and the Different Types of Geotextiles

By

Ravi Shankar

on

geotextiles in road construction

Description:

Do you have any idea? Geotextiles are large sheets that protect and bind our earth’s soil during rainy days. It is primarily used in road construction for filtration and separation. It keeps small gravel and sand aggregates from migrating. Geotextiles are thin and strong membrane fabrics that are used to strengthen the soil and protect it from damage.

Geotextiles are primarily used in road construction, particularly to fill gaps between roads and improve soil structure. Uses of geotextiles in road construction improve the usability of poor soil and make it easier to build in difficult areas. Geotextiles are ideal materials for construction and infrastructure such as roads, buildings, dams, and so on.

It increases stability and decreases wind and water erosion. It helps to prevent soil erosion while also allowing water to drain. Geotextiles are thin pieces of soil that are made of synthetic or natural fibers. It improves soil properties such as friction or movement restraint, load support, and changes in the bearing failure plane.

Geotextile Function

As a result of the above explanation, we hope you have a good understanding of why we use geotextiles. Geotextiles can be mesh, wrap-knitted, or have other fabric surfaces such as non-woven depending on the application. Lines, filtrations, drainage, reinforcement, sealing, and protection are all applications for geotextiles.

Geotextile Applications

  1. Improving Paved and Unpaved Airport Roads
  2. On landfills and stone foundation courses
  3. Filling land breaks with small geotextile portions.
  4. Under the parking lots and curb areas, beneath the sidewalks and sand drainage layer.
  5. To improve the greenery and recreational facilities captured beneath retaining wall structures
  6. Improved soil capping as a result of reinforced and pipe trenches

Fabrics of Geotextile Membrane:

Geotextiles are polymers and synthetics made from polyester textile materials. Geotextiles are highly effective materials for improving road quality. It is classified into the following categories:

  1. Woven Fabric Geotextile
  2. Non-woven textiles
  3. Knitted Materials

Also Read: WOVEN AND NON-WOVEN GEOTEXTILES: DIFFERENCES

Do you want to know what Geotextile testing is all about?

This is useful for testing the capabilities of textiles that will be useful for roads and highways. Direct shear test, Compressive creep properties, Tensile Creep and Creep Rupture Behavior, Resistance to perforation (Cone drop test), Trapezoid tearing strength, Grab tensile strength, and other tests are available. We use the following instruments to test these behaviors and properties of geotextiles.

The following are suitable geotextile instrumentation ranges – Singhal Industries Private Limited provides you with the best of the best instruments based on your needs and applications:

For more information about geotextiles in road construction, visit our website at www.singhalglobal.com.

 

Name of Geo-textile Equipment    Applications
Cone Drop Test ApparatusTo determine the tear strength of Geotextile materials
Cross Permeability Test ApparatusFor measuring normal permeability known as permittivity
Dry Sieve Test ApparatusFor relative comparison amongst the geotextiles
Geotextile PermeameterFor meeting the test requirements of water permeability of
Geotextile
Gradient Ratio Test ApparatusFor direct measuring of geotextile clogging potential
Hydrodynamic Sieve Test ApparatusFor determining the porometry of the geotextile being
investigated
In-Plane Permeability Test ApparatusUseful for drainage applications
Interface Friction Measurement ApparatusTo evaluate both ‘frictional’ as well as ‘pull out resistance’
of soil reinforcing materials at a shear rate and drainage condition as
desired by the designer
Large Pull-Out Test Apparatus for Geo SyntheticsTo measure the interface friction between GI Strips
/Geosynthetics and Soil.
Long-Term Flow Test ApparatusFor determining the long-term flow capability of a geotextile.
Thickness GaugeFor measuring the thickness of the geosynthetics/ reinforcing material with an accuracy of 0.001 mm for thickness up to 25 mm.

What tests are used to evaluate geotextile pavement?

If you want to do Geotextile Testing, you should have someone test the quality of the geotextile using a tensile testing machine, material testing, and friction testing depending on the implementation location and applications. “Puncture resistance testing” and “Tensile Grab Testing” are the most common tastings.
The following tests are available to ensure the strength of Geotextile.

Another minor test is also necessary to double-check the quality before performing the preceding tests.

  • Geotextile Grab Test / Tensile Grab Test
  • Testing for abrasion resistance / Geotextile Puncture Examination
  • Geotextile Tear Test
  • Wide Width Geotextile Strip Test
  • Geotextile Seam Strength Evaluation
  • Test specimen collection and preparation
  • The amount of mass per unit area
  • Thickness
  • Seam properties / Tensile properties
  • Resistance to pyramid puncture
  • Trapezoid tearing power
  • Perforation resistance (Cone drop test)
  • Pore size distribution apparent (Dry sieving)
  • Dimensions of the opening (wet sieving)
  • Water flow/permeability determination (normal to the plane)
  • Determination of the plane’s water flow capacity (transmissivity)
  • Cylinder Examination
  • Properties of compression
  • Properties of compressive creep
  • Creep and Tensile Creep Behaviors of Rupture
  • Simulation of abrasion damage

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