Ballast Piping Renewal using Carbon Fibers

Tuesday, July 26, 2011

The renewal of the water ballast piping in a total quantity of more than 500 meters on board a bulk carrier of a major Croatian ship owner was conducted by as2con-alveus ltd. The ballast piping was repaired using the composite material overlay method COMPA. COMPA features lamination of a damaged pipe surface using carbon fiber-reinforced plastics. The repair plan and materials presented in the technical documentation were approved by the Croatian Register of Shipping and accepted by Bureau Veritas.

Repair was performed during a drydocking at Viktor Lenac, Croatia from April 7-19, 2010. A total of 15 people worked on the repair project. Piping ranging from DN100 to DN350 pipe sizes, in topside and double bottom ballast tanks of four cargo holds, were repaired.

Prior to the renewal, an examination was performed to identify critical locations of the ballast piping. Then a local subcontractor performed the piping surface preparation to remove rust and remaining paint.

The piping renewal began immediately after the surfaces preparation. Carbon fibers were soaked in epoxy resin and applied onto a damaged surface. The resin hardens over time and permanently bonds to the surface while impregnating fibers that reinstate the strength of the damaged part. This procedure effectively creates a solid new layer of material that provides full water-tightness. The use of high-end materials such as carbon fibers and epoxy helped the workers complete the project in a short period of time. During the application period, the repair team met adverse weather conditions (rain, low temperature and high humidity), which were nevertheless successfully managed. Now, a year after the repairs were completed, the client’s superintendant reports that ballast piping is operating regularly.

Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Dann Marine Repowers With Cummins Tier 3 Engines

Dann Marine Towing, LC., is a fifth generation family owned and operated tugboat company based in Chesapeake City, MD. The model-bow twin-screw tug Sea Coast was

Sulzer Shareholder has 5 pct Dresser-Rand Stake

Russian billionaire Viktor Vekselberg's Swiss investment firm Renova Group said on Friday it had a 4.99 percent stake in U.S.-based Dresser-Rand, which might become the object of a takeover battle.

MAN-Powered Cargo Vessel Meets Tier III

Classification society awards SCR system emissions certificate. MAN Diesel & Turbo has been awarded a Tier III - compatibility certificate by the DNV- GL classification

Bulk Carrier Trends

Second Sailing Added to Cleveland-Europe Express

The Port of Cleveland and Amsterdam-based Spliethoff Group announced today their mutual intent to add a second monthly vessel to the Cleveland-Europe Express (CEE),

Ferus Smit Building LNG Powered Cement Carrier

The first unique LNG powered ship that Ferus Smit has on order for Erik Thun A.B. will be built and equipped as a dedicated cement carrier. The ship will be delivered to the joint venture JT cement,

Scorpio Bulkers Upsizes Public Offering

Scorpio Bulkers Inc. announced today that it has further upsized and priced its previously announced offering of senior unsecured notes due 2019 in a registered public offering.

 
 
Maritime Standards Naval Architecture Pipelines Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1675 sec (6 req/sec)