METALS giant Corus is about to roll-out a watertight sheetpiling system which it hopes will corner business in the burgeoning contaminated land sector.
The Hydrobar system comes with an optional warranty, which guarantees sheetpiled walls as leak-proof over their design life.
Corus said its new initiative will provide clients with a 'one-stop shop' for watertight sheetpile walls. Design will be carried out by Corus, which will also manage all Hydrobar projects while sheetpiles will be installed by specialist approved subcontractors.
Pile interlocks are waterproofed with sealants factory-applied under controlled conditions. Piles which have been treated can be supplied and driven singly or in pairs. Instead of a 'one-fits-all' system, Hydrobar uses a range of sealants and different piles from the Corus range to suit a variety of designs for different soil types and conditions, sheetpile wall design and driving method.
Epoxy resin and bitumen-based sealants applied in the factory are chosen to be sufficiently robust to withstand driving and any contaminants in the ground. Different pile interlocks also govern the choice of sealant.
Corus also says the system can be used for different piling methods, with some projects dictating the use of silent piling hammers which have different driving characteristics.
Hydrobar will be suitable for use in walls such as contaminant barriers, basement car parks and basements of buildings.