Flow control and flood protection

Stormbloc Optimum range

Attenuate or infiltrate surface water and stormwater effectively even in challenging high-traffic urban environments.

The Stormbloc^® Optimum range comprises two resilient geocellular storage systems that provide underground storage and infiltration of surface water runoff; Stormbloc^® Extra and Stormbloc^®, plus an inspection chamber, the Stormbloc^® Inspect.

The lightweight materials, combined with robust design make them easy to transport, quick to install and extremely durable. With an optimum-strength option for high-traffic areas and a lighter option for landscape and low-traffic areas, the Stormbloc^® Optimum range provides a space-saving solution for many applications.

The Stormbloc^® Optimum range is modular and easily customisable, giving engineers the freedom to configure storage for even the most challenging SuDS project.

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The Stormbloc^® Optimum range comprises two robust geocellular storage blocks; Stormbloc^® and Stormbloc^® Extra to provide underground storage or infiltration of surface water runoff as part of Sustainable Drainage Systems (SuDS). The range also includes Stormbloc^® Inspect; a chamber which provides easy access for inspection and maintenance.

Applications

•   New and retrofit Sustainable Drainage (SuDS) schemes.
•   Infiltration / soakaway schemes.
•   Attenuation schemes.
•   Highways and infrastructure projects.
•   To increase swale / pond capacity.
•   Car parks and Park & Ride schemes.
•   Housing Developments.
•   Schools and Public / Civil schemes.
•   Aquifer re-charge.
•   Storage for rainwater harvesting and re-use

Stormbloc^®

A lighter, cost-effective option suitable for landscaped or low-traffic areas. Access for inspection and maintenance can be included where required using Stormbloc^® Inspect chambers and Stormbloc^® Extra blocks.

Stormbloc^® Extra

A high-strength option ideal for installation beneath high-traffic areas such as roads, car parks and warehouse yards. Access for inspection and maintenance is via Stormbloc^® Inspect chambers and the channels in the blocks allow access for CCTV and cleaning to ensure that the storage volume of the system isn’t reduced by the build up of silts.

Stormbloc^® Inspect

The Stormbloc^® Inspect offers an unrivalled level of accessibility to any Stormbloc^® Extra or Stormbloc^® installation. This modular access chamber, sited within the tank, has identical dimensions to a Stormbloc^® Extra module and so can be easily incorporated into the layout of the infiltration or storage system.

The Stormbloc^® Optimum range is only available in the UK and Ireland

Customise your storage

Length, width and depth of storage can be customised in order to meet even the most demanding of drainage environments. Options for high- and low-traffic loading enables cost-effective storage designs.

Save space on site

Both Stormbloc^_® Extra and Stormbloc^® stack into compact nests for transport and storage, saving up to 75% of valuable space. The nested units save time and cost during installation, enabling more storage volume to be lifted into excavations at any one time.

Lightweight with two strength options

For more flexible designs choose between the high-strength Stormbloc^® Extra for deep or high-loaded installations and Stormbloc^® for shallower installations with lighter loads such as landscaped or low-traffic areas.

Stormbloc®

Storage capacity (half block): 0.220 m3
Porosity: 96%
Length / width / height: 800 / 800 / 330 mm
- (note: for bottom layer add 30 mm for base plate)
Constructed weight: 10 kg (1 element & 1 baseplate)
Material: Polypropylene
Vertical ultimate compressive strength: 313 kN/m2
Horizontal ultimate compressive strength: 93 kN/m2
Application suitability:
- Landscaped areas, no traffic
- Lighter loaded areas, such as landscaped or low traffic areas (cars ≤ 2.5t)
Maximum installation depth: 3 m
Cover depth:
- Landscaped area, no traffic: 0.5 m
- Light traffic loading ≤ 2.5 t: 0.8 m

Stormbloc® Extra

Storage capacity
- Full block: 0.405 m3
- Half block: 0.221 m3
Porosity: 96%
Length / width / height:
- Full block 800 / 800 / 660 mm
- Half block: 800 / 800 / 360 mm
Constructed weight:
- Full block: 18.6 kg
- Half block: 13.7 kg
Material: Polypropylene
Vertical ultimate compressive strength:
- Full block: 420 kN/m2
- Half block: 420 kN/m2
Horizontal ultimate compressive strength:
- Full block: 65 kN/m2
- Half block: 225 kN/m2
Application suitability:
- Landscaped area, no traffic
- Lighter loaded areas, such as landscaped or low traffic areas (cars ≤ 2.5t)
- Roads & HGV loading yards with traffic loading ≤ 44 t
Maximum installation depth: 4 m
Cover depth:
- Landscaped area, no traffic: 0.4 m
- Light traffic loading ≤ 2.5 t: 0.6 m
- Roads & HGV loading yards with traffic loading ≤ 44 t: 0.8 m