Permavoid Geocellular System

The Permavoid system can be used in place of a traditional aggregate sub-base within trafficked pavements, providing a unique high strength, consistent structural raft in accordance with BS7533-13:2009. The geocellular structures have a void ratio up to 95%, greatly enhancing the pavement's attenuation capacity and reducing aggregate requirements in hydraulic pavements. The system is suitable beneath asphaltic, block-paved or concrete pavements and for the full range of traffic conditions from domestic driveways to highways.

Features & Benefits

• Designed and tested for retention, attenuation or infiltration at shallower depths
• Effective source control
• Can be installed above a high water table
• Allows water to spread across a site
• Ideal for brownfield or contaminated sites
• Can remove silt and hydrocarbon deposits
• Removed the requirement for pumping stations
• Oil interception at source, no petrol interceptors
• Integrates with Polystorm geocellular solutions for deeper applications
• High compressive and tensile strength under load
• Suitable beneath both porous and non-porous surfaces
• Reduces excavation depth and cost
• No need for trench supports or associated plant