Structural Drainage

ABG manufacture and supply a wide range of geocomposite drainage layers designed for use with structures to alleviate hydrostatic pressure, control groundwater and manage surface water.

When compared to traditional drainage stone our Deckdrain and Fildrain ranges offer far more consistent performance and vastly superior filtration, and drainage performance, while also adding a layer of protection to the waterproofing.

Where filtration is not required, such as basement tanking or some tunnel applications, Cavidrain offers the same high performance.

Roofdrain offers drainage and attenuation for green roof applications, while our blueroof system allows roofs and podium areas within the footprint of the building to be used to manage rainwater run-off.

ABG Geosynthetics provide specialist technical advice on the best option to meet site requirements.

With applications ranging from cut and cover tunnelling to bridge abutments and retaining walls, our range of structural drainage products has it covered.

Typical Applications:

Benefits:

  • Horizontal or vertical drainage applications (walls)
  • Reduced thickness of drainage layers when compared to traditional aggregate drainage stone
  • Reduced dead loads on structure means thinner slabs are possible
  • High, factory controlled constant flow capacity
  • Wide rolls of Deckdrain are suited for rapid installation, reducing construction time
  • Enhances the performance of structural waterproofing by providing an additional barrier that prevents the majority of the water reaching the liner.
  • High CBR puncture resistance of Deckdrain® provides protection.
  • Allows use of lower specification backfill
  • Reduced traffic volumes to site when compared with stone meaning reduced carbon footprint and fewer vehicle movements

Typical Client Profile:

  • Waterproofing Contractors
  • Drainage Contractors
  • Water, Wastewater, and Utilities Companies
  • Roofing Contractors
  • Covered Reservoir Engineers
  • Tunnel Engineers
  • Green Roof Consultants and Designers
  • Blue Roof Consultants and Designers
  • Highways Engineers
  • Railway Engineers
  • Structural Engineers

ABG provide structural drainage systems for the following applications:

Paving and podium decks

Deckdrain provides factory consistent drainage in just a few millimetres thickness of geocomposite, which makes it ideal for use under block or permeable paving. Roofdrain and  blueroof will also provide drainage but with the added benefit of storm water attenuation capacity.

Podium Deck Drainage using ABG Deckdrain geocomposite

Retaining walls and Bridge Abutments

Deckdrain can provide drainage up to 50 times more effective than drainage stone.That means achieving the same level of performance with vastly reduced vehicle movements when compared to traditional methods. Deckdrain is easy to install without specialist knowledge or equipment. 


Buried Structures

When installed on the external faces of a buried structure Deckdrain collects and drains percolated groundwater. It prevents the majority of water reaching the waterproofing system, and provides an added layer of protection. The high compressive strength of Deckdrain means it is suitable even for very deep sub-surface structures such as potable water reservoirs, water/sewage treatment plants and basements. Deckdrain can also be used as a self-draining lost shutter when concrete is cast directly into the impermeable back.

ABG Deckdrain geocomposite drainage system for buried structues

Green Roofs and Blue Roofs

Roofdrain provides drainage and attenuation for green roofs. Where attenuation is not required Deckdrain can be used to provide a light-weight drainage layer underneath intensive green roofs and mixed use areas. Deckdrain has been engineered to be suitable in high load areas such as car parks and podium decks.

ABG have also developed our blueroof system to provides attenuation capacity for major storm events without the difficulties of underground tanks or land take for ponds and swales. ABG blueroof provides multiple SuDS compliant treatments to the run off as it discharges, along with a range of other environmental benefits.

ABG blueroof Blue roof drainage system

Tunnels - Cut & Cover

Deckdrain is a highly effective structural drainage layer when used on cut and cover tunnels, providing an effective and environmentally friendly alternative to traditional granular structural drainage. It provides a highly effective drainage zone against the structure, along with the additional benefit of acting as a durable protection layer for the chosen waterproofing system. 

The HDPE cuspated core of the Deckdrain geocomposite provides a free flowing drainage void allowing water to flow in all directions, unlike linear or pipe systems. The cuspates are designed to support the stiffened filtration geotextile which is thermally bonded to the core to ensure that it does not deform into the drainage void under the pressure of the backfill material. The use of Deckdrain eliminates the need for further protection of the waterproofing system.

Cavidrain drainage composites are used in Tunnel cut and cover projects

Tunnels - Internal Drainage

Inside the tunnel our Cavidrain Protector and Cavidrain Liner are used in the lining system to provide drainage, while also reducing the amount of sprayed concrete lost to rebound. Cavidrain Invert provides tunnel invert drainage with a much reduced excavation, greatly reducing the requirement for drainage stone and reducing construction time.  

Cavidrain tunnel drainage geocomposites from ABG Geosynthetics”></div>

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Cavidrain Building

ABG Cavidrain drainage geocomposite is a preformed cavity drainage system designed to relieve water penetration from basements and buried structures. It is designed for use on both new and existing structures.

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Cavidrain Building

Deckdrain Drainage Geocomposite

ABG Deckdrain is a high performance geocomposite drainage system. Designed to provide an environmentally friendly alternative to traditional structural drainage techniques, it provides high flow capacity and added protection to waterproofing.

more...

Deckdrain drainage geocomposite from ABG Geosynthetics

Piledrain

Piledrain is designed as an effective solution to the treatment of joints between contiguous and secant bored concrete piles in basement and retaining wall construction.

more...

Piledrain

Roofdrain

Roofdrain is designed for use in extensive green roof systems. It provides both drainage and attenuation in a convenient, lightweight and cost effective system.

more...

Roofdrain drainage geocomposite for green roofs, blueroofs and roof SuDS attenuation

Blue Roof Systems

blueroof offers a new concept in the management of storm water. Changing weather patterns means rainfall events have become more extreme challenging the way water is managed. blueroof utilises the roof construction for the attenuation of storm water releasing it at a controlled rate in the period following the storm. 

more...

ABG blue roof Blue Roof System for Green Roofs from ABG geosynthetics

Cavidrain Protector

Cavidrain® Protector provides a free draining layer to collect infiltration water from behind tunnel linings as well as providing protection from physical damage. 

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Cavidrain Protector is a tunnel drainage geocomposite from ABG Geosynthetics

Cavidrain Liner

Cavidrain® Liner is a combined drainage and waterproofing liner that is welded to form an integral waterproof system. The sheets are easily fixed to the smoothed excavated walls with a sealed fixing detail and the system is finished with shotcrete.

more...

Cavidrain Liner is a combined tunnel drainage and waterproofing geocomposite liner

Cavidrain Invert

Cavidrain® Invert provides a pre-formed drainage layer into which the concrete floor slab can be easily cast. Cavidrain® Invert replaces the crushed stone and pipes traditionally used to collect and transport away infiltration water.

more...

Cavidrain Invert geocomposite for tunnel invert drainage
 

Products

Cavidrain Building

ABG Cavidrain drainage geocomposite is a preformed cavity drainage system designed to relieve water penetration from basements and buried structures. It is designed for use on both new and existing structures.

more...

Cavidrain Building

Deckdrain Drainage Geocomposite

ABG Deckdrain is a high performance geocomposite drainage system. Designed to provide an environmentally friendly alternative to traditional structural drainage techniques, it provides high flow capacity and added protection to waterproofing.

more...

Deckdrain drainage geocomposite from ABG Geosynthetics

Piledrain

Piledrain is designed as an effective solution to the treatment of joints between contiguous and secant bored concrete piles in basement and retaining wall construction.

more...

Piledrain

Roofdrain

Roofdrain is designed for use in extensive green roof systems. It provides both drainage and attenuation in a convenient, lightweight and cost effective system.

more...

Roofdrain drainage geocomposite for green roofs, blueroofs and roof SuDS attenuation

Blue Roof Systems

blueroof offers a new concept in the management of storm water. Changing weather patterns means rainfall events have become more extreme challenging the way water is managed. blueroof utilises the roof construction for the attenuation of storm water releasing it at a controlled rate in the period following the storm. 

more...

ABG blue roof Blue Roof System for Green Roofs from ABG geosynthetics

Cavidrain Protector

Cavidrain® Protector provides a free draining layer to collect infiltration water from behind tunnel linings as well as providing protection from physical damage. 

more...

Cavidrain Protector is a tunnel drainage geocomposite from ABG Geosynthetics

Cavidrain Liner

Cavidrain® Liner is a combined drainage and waterproofing liner that is welded to form an integral waterproof system. The sheets are easily fixed to the smoothed excavated walls with a sealed fixing detail and the system is finished with shotcrete.

more...

Cavidrain Liner is a combined tunnel drainage and waterproofing geocomposite liner

Cavidrain Invert

Cavidrain® Invert provides a pre-formed drainage layer into which the concrete floor slab can be easily cast. Cavidrain® Invert replaces the crushed stone and pipes traditionally used to collect and transport away infiltration water.

more...

Cavidrain Invert geocomposite for tunnel invert drainage
 

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