DWG Resins were approached by Boskalis Westminster a Dutch / English dredging company to see if we were able to provide a product that was able to prevent water from entering 3 Spuds ( 30mm thick x 900mm diameter x 28 metres long hollow tubes with a pointed end ).
The spuds are used to drop through the deck of dredging barges to anchor and stabilise them in relation to the seabed and to give a level platform from which to work. The spuds are lifted prior to moving to a new area to commence dredging again so any added weight is a great issue. They had been having problems with the added weight of water seeping into the spuds, and in some cases this was around 7 to 8 tonnes extra, which increase the strain on all the lifting equipment.
One of the main issues was the dredging barge was unable to sail in to shallow water within the harbour so all equipment had to be demountable and could be craned of the vehicle onto a small barge and then be transported out to deeper water and again craned on the the dredging barge. All the material is stored and transported in 1000 litre IBC’s ( the size of a euro pallet 1200mm x 1000mm ) with a maximum weight of 1200kg. The pumping unit is of a similar size and weighs around 400 kg and the power for the entire pumping process is provided by a compressor.