MARINE, CIVIL ENGINEERING & CONSTRUCTION Wey to go Dredging


Jenkins Marine have been working for Weymouth Harbour commissioners and the RNLI to undertake maintenance dredging within Weymouth harbour. Dredging has been requested for various areas including under the all-weather lifeboat berth where the existing mooring pontoon is currently removed for maintenance works.


The Self-propelled Spud Leg Pontoon Utility Vessel Doreen Dorward led operations with the assistance of split hopper barges NAB and Needles which were used to transport the spoil to the Swanage disposal site.


The dredging vessels attracted quite a crowd whilst filling the main navigational channel and dredging in close proximity to the historic lifting bridge. Close co- operation was required with the local harbour authority and other harbour users.


Keith Howorth, Weymouth Harbour Master said: “Many thanks to you and your team for a great job here in Weymouth this week. It was a pleasure to work with your team


who were professional, cooperative and understanding of our harbour and it’s users.


T: +44 (0) 1202 668558 E: office@jenkinsmarine.co.uk www.jenkinsmarine.co.uk


Belzona Elastomeric Systems Keeping Equipment Afloat


A sea of potential problems Marine fenders can be susceptible to a large amount of damage due to the very nature of what they are designed for. They can be a vital piece of equipment, acting as buffers preventing loss to the body of a boat or a ship, absorbing kinetic energy from impact. Whether they are employed on the sides of boats, in piers, docks and other boat entrance and exit points - marine fenders are there as a protective measure, potentially also saving large financial losses.


A marine supply company in Washington, USA was faced with damaged fenders after a sharp object was able to penetrate and tear through the 1.5-inch (4cm) thick heavy-duty rubber. The company who owned these bumpers had several other bumpers, with most of them being pneumatic. The main danger of these specific two bumpers was the fact that the interiors consisted of a foam


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core. Water saturating this foam core would in turn cause the fender to sink.


Introducing an Elastomeric solution Belzona Technology Washington, Washington, USA was able to present a solution that would repair the fenders in a short time, whilst also avoiding a large financial loss. Due to the damage, the replacement cost for each marine fender would have been over $25,000. A solution was put forward that would resolve the issues without a large financial loss to the customer and one that would restore the build of the fender, putting it back into service and extending the equipment life. One that would also offer many benefits over traditional repairs methods, such as, durability, elasticity built in and no need for specialist tools.


The application began by removing all loose, damaged areas and pieces. In order to achieve a rough “feathery” finish for surface preparation, an MBX Bristleblaster was used to achieve the best bond possible


on the thick rubber substrate. The prepared surface area was conditioned with Belzona 2911 and taped off to provide a clean application finish. Once the fender was conditioned, Belzona 2111 was gradually worked into the surface in order to bring it back to its original form. To provide additional strength to the application, Belzona 9341 was overlaid on the Belzona elastomeric repair. The application was smoothed over with a Belzona applicator to eliminate any sharp edges. The application took less than 3 hours to complete from start to finish due to the rapid curing times of Belzona 2111.


In conclusion, due to using elastomeric polymer solutions over traditional methods or buying new equipment at a large cost, the customer was able to save a considerable amount of money and time. This application was also used to train their in-house crew members, so that further applications can be done in the convenience of the customers timing, thus ensuring a quick and efficient solution to the problem.


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