Reinforcement and Separation Systems
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Reinforcement & Separation A guide to the design and selection of ABG Geogrids and Geotextiles

The need for a sustainable approach to construction and indeed to all human activities has been increasingly recognised over the last few decades. It is now a major criterion in project design. The British government is committed to sustainable construction and a wide range of regulation and guidance has been revised to promote sustainability. What is less widely recognised is the major contribution that geosynthetics can make to the sustainability of construction and infrastructure works. Geosynthetics allow the engineering of the performance of marginal materials. By so doing, they...

Ground Conditions Geosynthetics are used to improve the performance of the ground and therefore a good understanding of the ground is essential. The Technical team at ABG have an outstanding depth of experience of the ground and its interaction with geosynthetics and can advise on all phases of a project from concept to completion. Recent studies demonstrate the outstanding performance of geosynthetics in sustainable construction. In particular, the reduced carbon footprint of Geosystems is strikingly illustrated in work reported by WRAP, the government’s Waste Reduction Action Programme....

Trigrid EX Trigrid EX is an innovative geogrid made of fibre-reinforced polymer strips with interlocked structure and welded junctions. It offers excellent creep behavior, high resistance to installation damage and aggressive chemical attack combined with high long-term design strengths. The Trigrid EX series is specifically designed for improved performance in soil stabilisation and in both sub-base and soil reinforcement applications. Trigrid EX is dimensionally stable and has a uniform network of apertures that provide significant tensile reinforcement through the whole life of the...

Abgrid Abgrid is a range of standard grade geogrids for applications in basal reinforcement, ground stabilisation, aggregate reduction, spanning voids, load transfer and foundation engineering. It is manufactured from extruded Polypropylene (PP) which is then punched and then drawn to form a monolithic geogrid with strength in two directions (biaxial). The combination of ribs and the corresponding nodes allows loads to be transferred through the geogrid structure whilst allowing a positive interlock through the apertures of the reinforced materials. The Abgrid range offers high tensile...

Gridtex Gridtex is a high performance geotextile engineered for reinforcement and is ideal for strengthening a wide range of soils. It is capable of fulfilling many of the functions of a geogrid whilst at the same time offering all the benefits of a woven geotextile. Gridtex has an extremely high surface friction which interacts fully with adjacent aggregate materials without the necessity for the interlock required with a geogrid. Reinforcing the aggregate layers allows the use of a thinner construction depth offering cost savings on the project as well as reducing the environmental...

Terrex The Terrex range consists of needle-punched and heat-treated non-woven geotextiles which are designed specifically to offer optimum performance per unit weight in a wide range of applications. The range comprises three different grades of geotextiles suitable for a wide range of separation, reinforcement and protection applications. Terrex NW comprises staple fibre needle punched and heattreated geotextiles designed to offer optimum performance per unit weight. The resulting mechanical and hydraulic properties make them the ideal choice for straight-forward separation and filtration...

Abtex SG offers a range of woven geotextiles from lightweight fabrics for basic separation functions through to high strength products offering cost effective reinforcement in civil engineering projects. The range has a wide range of tensile strengths that ensures there is an SG grade to meet most performance requirements. Abtex SG is typically used as a general purpose separator for use under site access roads and areas of hardstanding but also has uses in separation and strengthening layer under new roadways, car parks, industrial units etc., erosion control layers and for general...

Abweb Abweb is a three dimensional cellular matrix designed to strengthen weak soils in horizontal applications such as access roads, car parking areas and site compounds. It strengthens and reinforces granular stone layers such as sub-base by confining the aggregate within a three dimensional tensile matrix. Using Abweb offers an inexpensive system with which it is possible to reduce the thickness of aggregate under loaded areas by up to 50%. This reduces the volume of aggregate required and also reduces the volume of excavation thereby reducing lorry loads to and from the site helping...

Erosion Control Retaining Walls These products cover a broad section of erosion control requirements including biodegradable or non-biodegradable and pre-seeded varieties. ABG erosion control products can help with both the surface protection and the structural stability of soil slopes. ABG became involved in designing retaining walls through reinforced earth over twenty years ago when with the development of a range of ground engineering solutions. Silt laden run-off from exposed soil slopes is a major concern for the Environment Agency (EA) who consider it to be a pollutant; ABG erosion...

This literature together with technical data, specifications, design guidance, technical advice, installation instructions or material can be obtained by contacting ABG Ltd. All information in this brochure is supplied in good faith, and without charge, to enable a reasonable assessment of the practical performance of our products. Final determination of the suitability of any information or material for the use contemplated and the manner of its use is the sole responsibility of the user. As design and installation is beyond our control no warranty is given or implied and the information...