Tarmaxx Grid ( GEOGRID )

TARMAXX GRID ( GEOGRID ) is a geosynthetic material used to reinforce retaining walls or soil beneath roads. There are two types of TARMAXX GRID ( GEOGRID ) available : biaxial or uniaxial .

Geogrid Reinforcement Mechanism

A subgrade soil beneath a paved or unpaved surface can fail under load in two ways: localized shear failure and bearing capacity failure. Localized shear failure typically occurs in the form of severe deformation or rutting in soft subgrades when loading exceeds the subgrade strength. 

Geogrid reinforcement of granular fills over soft soil can prevent localized shear failure of the subgrade and therefore significantly increases the effective bearing capacity of the subgrade . 

A geogrid's primary stabilization mechanism is  lateral restraint of the aggregate materials through a process of interlocking the aggregate and the apertures of the geogrid. 

The level of lateral restraint that is achieved is a function of the type of geogrid and the quality and gradation of the aggregate material placed on the geogrid. To maximize performance of the geogrid, a well-graded granular material should be selected that is sized appropriately for the aperture size of the geogrid. 

When aggregate is placed over geogrid, it quickly becomes confined within the apertures  and  is restrained from punching into the soft subgrade and shoving laterally. This results in a "stiffened" aggregate platform over the TARMAXX geogrid.  

Application Areas of Tarmaxx Grid 

Geogrid Reinforcement

  • Highway base course reinforcement
  • Railway base course / railway ballast reinforcement
  • Reinforcement for roads
  • Pavement reinforcement
  • Gabion wall reinforcement
  • Reinforcement for surgical stability of slopes
  • Soil Embankments
  • Reinforced steep soils
  • Reinforced foundations
  • Slope stabilization
  • Reinforced soil retaining wall
  • Load transfer platforms

Benefits of Tarmaxx Grid

Geogrid Systems

  • Reduces sub base thickness
  • Reduces site vehicle traffic
  • Reduces surface rutting
  • Easy to handle
  • Resistant to soil chemicals