RD Geogrid

RD Geogrid
СТО 30478650-001-2012
Reinforced road geogrid with through-cells of a stable rectangular shape, designed to reinforce structures.
Reinforced Road Geogrid RD

Reinforced road geogrid RD — a flat, roll-form geosynthetic material with through-cells of a stable rectangular shape. The material has tensile strength in both the longitudinal and transverse directions. It is used to reinforce structures.

RD geogrid is manufactured from composite strips bonded at their intersections. The load-bearing component of the strips is steel spring wire, while the coating is low-pressure polyethylene. The RD/M grade consists of the same composite strips thermally bonded to geotextile, which improves adhesion to the base.

We produce RD geogrid in both biaxially oriented form, with equal strength values in the longitudinal and transverse directions, and uniaxially oriented form, with higher strength values in the longitudinal direction.

The reinforcing geogrid evenly redistributes the load across the road pavement, thereby preventing damage, uneven settlement and intermixing of granular layers. The material reduces the costs of traditional materials by decreasing the thickness of structural layers.

The geogrid aperture size is selected according to the aggregate fraction. This is necessary to ensure effective interaction between discrete particles and the reinforcing grid.

Areas of application

The primary function of a geogrid is to increase the bearing capacity of unbound pavement layers. This allows the material to be used in the construction of temporary and diversion roads, platforms for heavy machinery, as well as railways and roads subject to continuously increasing loads.

The RD geogrid addresses the problem of uneven settlement and prevents the intermixing of unbound layers during road operation. 

The use of a reinforcing grid in the construction of municipal solid waste landfills enables sections on weak soils to be bridged during the placement and compaction of inert material.

The RD geogrid is used as a reinforcing material in the construction, reconstruction and repair of:

  • Roads
  • Temporary roads and platforms
  • Airports, airfields and spaceports
  • Railways
  • Gas and oil pipelines
  • Ice crossings
  • Heavy-load platforms for various purposes
  • Temporary storage warehouses
  • Retaining walls
  • Approaches to bridge crossings
  • Soil wraps
  • As well as for replacing log road decking
Advantages
  • Increase in the maximum permissible load on the subgrade
  • Increased service life of pavements
  • Reduced rutting
  • Increased crack resistance of the road pavement
  • Longer intervals between repairs
  • Reduced construction time
  • Savings on conventional materials through increased strength and reduced thickness
  • Uniformity and reduced settlement of foundation soils
  • Possibility of designing structures for continuously increasing loads (technological loads and loads from rolling stock)
  • Seismic resistance

Technical characteristics of RD road reinforced geogrid, STO 30478650-001-2012

Indicator RD 60 RD 140
Tensile strength along/across, kN/m 60/60 140/50
Aperture size*, mm 50*50 50*100
Elongation at break, maximum, % 3
Increase in the deformation modulus of the discrete layer, % 59
Reduction in total settlement, % 38
Coefficient accounting for the reduction in strength due to material creep 1,38
Nominal deformation modulus, minimum, kN/m 5000
Roll width, m 5
Roll length, m 50
RD geogrid can be manufactured with the following aperture sizes: 75*75, 100*100 mm (for biaxially oriented geogrid), 50*100, 75*100 mm (for uniaxially oriented geogrid)

Buy RD geogrid from the manufacturer

«ТЕХПОЛИМЕР» is the largest geogrid manufacturer in Russia. We have been operating since 1994 and supply materials to Rosneft, Gazprom, Rosatom and Russian Railways. We handle the entire scope of work — from design through installation and commissioning.

We supply reinforced road geogrids with cell sizes of 45/45, 60/60 and 100/100 mm in rolls 50 metres long and 5 metres wide. We ship products in any volume throughout Russia and beyond.

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