Protective Coating of the Gates on the Ord River Diversion Dam Michael Harrington – McElligott Partners Pty Ltd The initial contract included the refurbishment of four gates previously identified as needing immediate recoating and other works. The initial scope of works included both the protective coating of the gates as well as welding repairs. The...
7th August 2012Hot Dip Galvanizing – An Introduction Emmanuel Pimentel The hot dip galvanizing process is relatively simple compared to most other corrosion protection systems and it is this simplicity that makes it an economically efficient and technically effective corrosion protection system for both small items and structural steel applications. The galvanizing process utilizes zinc, one of...
7th August 2012Concrete Mine Thickener Tank Repaired with Hybrid Cathodic Protection Ian Godson & Luke Thompson – Infracorr Consulting Pty Ltd In November 2010 Infracorr Consulting Pty Ltd (formerly Ian Godson & Associates) was consulted to provide a repair specification to an 80m diameter coal thickener tank suffering from significant concrete deterioration issues. The 3m high tank...
31st July 2012Restoring the Pride of an Australian Icon Nour Nwiran, Structural Systems Structural Systems (Contractor) in conjunction with Diagnostech (Superintendent) were engaged on behalf of the NSW Office of Environment and Heritage for the restoration works to the Green Cape Lighthouse in Eden, New South Wales. This heritage listed icon of Australia is well over 100...
31st July 2012Neptune Champions Alternating Current Field Measurement (ACFM) in Australia T. Cunningham (Inspections Manager), A.Leslie (NDT Inspector – ACFM) & D.Marr (NDT Inspector – ACFM). Neptune – Asset integrity Services. At one of the world’s busiest commodity ports, a Western Australian company, Neptune, has successfully applied an emerging technique of non-destructive testing (NDT) to the inspection...
31st July 2012Designing for Corrosion Protection – Part 2 Emmanuel Pimentel In the previous discussion, various common traps for steel designers that can compromise corrosion protection were examined. This theme is continued here, including a discussion on sheltering, in the author’s practical experience, one of the most prevalent corrosion issues in coastal infrastructure and dwellings.
31st July 2012Engineered Maintenance of Newcastle Port Wharf Structures Warren Green, Vinsi Partners Consulting Engineers, Sydney Scott Bacon, Newcastle Port Corporation Brad Dockrill, Vinsi Partners Consulting Engineers, Newcastle Exporting over 103 million tonnes per annum, the Port of Newcastle is one of the world’s largest single coal export ports. In addition to coal, the Port handles over...
31st July 2012Salt Fog Testing Monty Luke, Principal Metallurgist – Bureau Veritas Asset Integrity and Reliability Services Pty Ltd It is over seventy years since the specifications of the neutral salt fog test were first defined by ASTM B117 in 1939. American Society of Testing and Materials method B117 is the standard salt fog environmental test used...
31st July 2012Energy savings in the HVAC environment Ray Van Haven, GM – Blygold Oceania As most facility managers are aware of, operating your HVAC equipment accounts for 40-70% of their energy bill. As a result engineers work hard to improve their equipment and make it more energy efficient and economical. So what is it that we can...
31st July 2012The Tiger Stripe effect observed when MIC occurs at welds of stainless steel vessels containing stagnant water L.H. Boulton, Nickel Institute Consultant, New Zealand It has been observed over years that an unusual surface morphology appears on stainless steel surfaces at circumferential welds in vessels (commonly austenitic grades 304 or 316) if microbiologically influenced corrosion...
31st July 2012Protective Coatings – An Introduction Emmanuel Pimentel Painting is the application of a liquid coating to a metal to protect it. It is considered the oldest method of corrosion control and certainly the most recognisable to people outside the corrosion protection field. Painting’s simple premise – the application of a protective film to protect the underlying metal...
31st July 2012Pipeline external corrosion analysis using a 3D laser scanner Pierre-Hugues Allard, Creaform Pipeline operators have to inspect their pipeline network directly or through NDT inspection service companies. In-line inspection (ILI) tools allow the identification of zones with critical external corrosion by magnetic flux leakage (MFL) or ultrasonic (UT) methods. The code specifies that a prove-up...
31st July 2012Restoring Timeless Beauty for Future Generations Savcor has recently completed the meticulous restoration works for the facade of His Majesty’s Theatre in Perth, Western Australia. As described below, this heritage icon is over 100 years old and can proudly lay claim to being one of the greatest examples of Edwardian era architecture in the country.
31st July 2011Offshore Cathodic Protection Anode Retrofitting SVT Engineering Consultants (SVT), working in a challenging marine environment, designed a cathodic protection solution to a potentially expensive problem. PTTEP Australasia (formerly Coogee Resources) until the end of 2010 operated two Floating Production, Storage and Offload Facilities (FPSOs) located in the Timor Sea. The Challis Venture and the Jabiru Venture were...
31st July 2011Next generation metallic coatings David Harrison, OneSteel Australian Tube Mills Hot-dip coatings are widely used for the corrosion protection of steel, with zinc based alloys providing both barrier and galvanic protection to the steel substrate.
31st July 2011