Terraqua ES supply a wide range of geogrids and design systems for use in the to construct of retaining walls, bridge abutments, steep slopes and basal mattresses. In most cases to reinforce the soil and create mechanical stabilised earth layers.
TENAX TT 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 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 geogrids 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 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.
The range of LBO biaxial geogrids are manufactured from high strength polypropylene that have been especially designed for soil stabilisation and reinforced applications; the geogrid is a stiff monolithic geogrid with integral junctions giving strength in two directions and a rectangular rib cross-section with square edges. LBO geogrids have been used for mechanical ground stabilisation in tens of thousands of projects worldwide, including roads, working platforms and reinforced foundations.
Also available, TENAX GT a polypropylene (PP) geocomposite designed specifically for the stabilisation of soils where 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 LBO geogrid produces the TENAX GT geocomposite, providing 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.
New 3D Geogrids
TENAX 3D Grid XL is manufactured from a unique extrusion technique resulting in a perforated polypropylene sheet that is specifically shaped in three directions (3D).This special extrusion technique produces a particularly large concaved shaped rib thereby trapping stone particles within the large apertures and enhancing the interaction mechanism between geogrids and granular.
TENAX 3D Grid MS has been designed for use with finer soils and include multiple geogrid layers through which the interlocking mechanism can develop thus preventing further horizontal displacements.
TENAX 3D Grid MS is manufactured from a unique extrusion technique forming a multi-layered product having a network of multiple connections thereby enhancing the interaction properties of the geogrids when used with finer soils.
Key benefits when using TENAX 3D Grids
|3 Dimensional Integral geogrid||3 layers of bi-oriented geogrid|
|Tall, vertical lateral ribs||Multiple rib connection points|
|Different apertures for aggregate size||Increased interlocking mechanism|
|Increased confinement effect||Increased interaction|
We offer a full technical advice and design service with PI, if required, fully supported with drawings, calculations and installation guidance.