Facebook pixel

Sub-grade Improvement

Home > Solutions > Sub-grade Improvement

Sub-grade Improvement

Image

Issues surrounding unbound material-made roads and track beds. Sub-grades and access tracks made from unbound materials can suffer from a number of issues that prematurely age the road; including:

  • Bearing capacity failure
  • Differential settlement
  • Rutting
  • Access over wet/saturated ground
  • Construction layer thickness
  • Weak subgrades


These effects are apparent in many applications including railway track beds, forestry tracks, mine haul roads, construction sites and parking areas.

Geogrid reinforcement solutions to improve performance. Appropriately designed and installed reinforcement, placed within unbound granular layers improves the performance of the road or track bed, extending its life and increasing maintenance intervals. The geogrid reinforcement works in cooperation with the granular materials, helping them to perform better than they would do in an unreinforced state.

Image

Two mechanisms work to increase the elastic modulus and bearing capacity, resulting in improved resistance to deformation and rutting.

  • Lateral restraint to the aggregate particles
  • Tensioned membrane effect.


Improving performance while reducing thickness. In addition, reinforcement can reduce the layer thickness by a third and improve the performance of the subgrade.

Maccaferri’s expertise can bring best-value solutions. Using our design software MacREAD we can optimise the relationship between geogrid (or geotextile) reinforcement and sub-grade thickness to create best-value solutions.

Related products

Biaxial Geogrids
MacGrid WG-SHigh tenacity PET knitted-weaved coated geogrids are also available and used in these types of applic View
star
MonoAxial GeoGrids
Paragrid™ WAn enhanced high performance knitted geogrid characterized by a very high modulus and the lowest reduction factors. Desi View
star
Multicomposite
Multicomposites represent the latest and most innovative advancement within the geosynthetics family. These materials View
star
Nonwoven Geotextiles
Versatile Solutions for Separation, Filtration, and Protection Nonwoven geotextiles are flat textile structures ma View
star
PET Woven / Composite Geotextiles
Reinforcement and Filtration Solutions for Soft Soils PET woven geotextiles are engineered using advanced textile View
star
PP/PE Woven Geotextiles
Reliable Solutions for Soil Stabilization, Filtration, and Separation Woven polyolefin geotextiles (PE or PP based View
star

Get in contact with our Experts Today

Our team of experts is ready and eager to assist you: whether you have questions about our latest products, or seek customized solutions for your specific challenges, we’re just a click or call away.

 

Image