GEOGRIDS

EGRID - RIGID POLYPROPYLENE BIAXIAL GEOGRIDS

EGrid polypropylene (PP) rigid, integral junction, biaxial geogrids are available in 20kN/m, 30kN/m & 40kN/m ultimate tensile strengths in both the longitudinal and transverse directions. EGrid rigid biaxial geogrids perform best in granular, angular fills and are used under roads, railways, loading platforms for sub-base soil reinforcement & stabilisation.

EGrid datasheet

Load Transfer Platform

Case Study: Geogrids - Rigid Biaxial Geogrids for sub-grade
      reinforcement

TENAX GT COMPOSITE GEOGRIDS

TENAX GT is a polypropylene (PP) geocomposite designed specifically for the stabilization of soils where a both a reinforcing action as well as the separation between a granular base and very fine soil is required. Laminating a nonwoven geotextile to a TENAX LBO SAMP geogrid produces the TENAX GT geocomposite.
TENAX GT has both a high tensile strength and modulus of elasticity, exceptional construction damage resistance during installation, and excellent resistance to atmospheric agents. Furthermore, the geometry of the TENAX GT geocomposite permits a strong interaction with the soil being reinforced, complete separation of the different soil types, and an effective filtering action.

Tenax GT datasheet

STRATAGRID® POLYESTER GEOGRIDS

StrataGrid® geogrids are manufactured from high tenacity polyester (PET) yarns. The geogrids are coated with a stiff, polymeric coating suitable for soil reinforcement under road embankments, segmental retaining walls (e.g. Keystone Compac, Anchor Walls, Vertica, Allan Block), Gabions and reinforced soil slopes.

They range in Ultimate Tensile Strength between 50kN/m to 170kN/m. The most common grades used for commercial segmental retaining wall designs are SG350, SG500 & SG550.

Contact our engineers for preliminary designs to meet your project requirements.

Download PDF Brochure

Case Study: Block Wall Reinforced with Stratagrid

Case Study: Block Wall Reinforced with Stratagrid

TENAX TT UNIAXIAL GEOGRIDS

TENAX TT SAMP geogrids are manufactured by extruding and mono-directional drawing of high-density polyethylene (HDPE) grids. This technology produces products having important technical properties that permit their usage in structural applications.
TENAX TT SAMP geogrids, being chemically inert and having a high tensile strength and modulus are specifically produced for the reinforcement of soil. Soil and aggregate interlock within the geogrid openings, which, confine the soil and limit its relative displacements and increase the soil’s shear stress resistance. Soil compaction produces an interlock between the soil and both faces of the geogrid layer, thus it’s necessary to reach a higher level of tension in order to overcome such an interlock and give rise to movement.

The composite soil/geogrid structure therefore, acts as if it had an intrinsic tensile strength. The insertion of the geogrid thus produces a type of cohesion within materials that would be otherwise non-cohesive. The soil/geogrid structure integrates the fill soil high compressive strength with the geogrid’s tensile strength, thus creating a material having greater rigidity and stability than the aggregate alone. The geogrids capacity to absorb stresses and redistribute them in the reinforced mass further increases the structure’s resistance to static and dynamic loads.
TENAX TT SAMP geogrids therefore constitute an innovative and advantageous solution from a technical and economic point of view for all applications requiring improvement in the characteristics of the granular, cohesive, unconsolidated, or aggregate materials.

Construction of retaining walls

Construction of road & railway embankments

TT Case History

Tenax TT datasheet
Tenax Reinforced slopes & walls brochure
The design of reinforced soil retaining walls using Tenax geogrids

INTEGRATED GEOGRID SYSTEM / METAL FORMWORK / VEGETATIVE MAT

The reinforcing element provided by the TENAX RIVEL System is composed of a TENAX TT SAMP series monoriented HDPE geogrid (1) and on the face by a non structural guiding and supporting “left in place” formwork (2), produced by bending to the slope angle a sheet of welded wire mesh (150 x 150 mm mesh or also 200x200 mm, Ø 8 mm). The formwork is supplied with hooked tie rods that guarantee the geometric stability of the formwork itself during the soil compaction phase.
The use of the “left in place“ formwork provides a rapid rate of installation and more accurate project construction and finished face. A vegetative biomat (3) is placed on the inner face to protect the face against the erosion and create an adequate surface for the eventual hydro-seeding or sowing of suitable grasses.

Inert material for embankment

Reinforcing elements

Welded wire mesh formwork

Biomat

Hydroseeding