A Technical Specification has been prepared by Standards NZ for corrosion protection of structural steel-work exposed to the New Zealand atmospheric and non-atmospheric environments. This new Specification is intended to be used to satisfy the durability requirements of the NZ Building Code Clause B2, and the New Zealand Transport Agency Bridge manual. It is also...
21st September 2017
[envira-gallery id=”3344″] On 14 September at UNSW attendees, in teams were given a visual inspection report for a structure and the task to choose what further investigation was required. After a short break for networking and an overview of remediation techniques, the teams needed to decide the most suitable remediation methods to ensure that the...
21st September 2017
When is a Paint Dry? Rob Francis, R A Francis Consulting Services, Ashburton, Victoria, Australia This seemingly simple question of When is a paint dry may appear as exciting as watching paint dry, but in fact shows some complications that can arise with definitions in the coatings industry.
11th September 2017
Pure Polyurea, Corrosion Protection & Offshore Oil Rigs Rhino Linings Australasia Pty Ltd (RLA). Both abrasive and corrosive, the marine environment is unforgiving of maritime structures such as offshore platforms, rigs, and ocean-going vessels—all of which are major investments for the companies operating them. All activities in a marine environment are impacted by corrosion; the...
11th September 2017Moisture as a cause of CUI Andy Hoffman Moisture is one of the major factors to consider when investigating corrosion under insulation (CUI). Accumulating water within an insulation system can wreak havoc on metal piping, ventilation and other insulated surfaces, originating from a variety of sources, including condensation within the systems, water spray from deluge...
11th September 2017Refurbishment of Makatote Viaduct, New Zealand G. Matthews¹, M. Keenan², D. Jansen2 ¹TBS Group, New Zealand, ²Structures Engineering Services, KiwiRail, New Zealand 1. Introduction The Makatote Viaduct is on the North Island Main Trunk (NIMT) Railway line, which is a 680km long railway that connects Auckland and Wellington, the two major cities in New Zealand (NZ)....
11th September 2017Coating Refurbishment of Domain Tunnel Ventilation Stack, Melbourne Case study submitted by Mattioli – Innovators in Protective Coatings, who are a leading protective coating applicator in Australia, based in Victoria. Transurban’s Grant Street Ventilation Stack for the Domain Tunnel has recently been refurbished by Mattioli’s industrial coating team. The Stack is close to 50 metres...
11th September 2017BE PREPARED – Is Surface Preparation for Concrete Repairs a Fad? Hamid Khan – Product Segment Manager, Parchem Prior to the commencement of concrete repairs, the fundamental thing to consider is surface preparation. The amelioration of damaged concrete structures involves many elements, from engineers, applicators and even legal counsel. This paper details the primary value...
11th September 2017Tools & Tips: Holiday Detection on Coated Steel & Concrete Substrates Tom Swan, November 19, 2015 (republished from Corrosionpedia.com) I’m often asked questions about holiday testing or, as the Europeans call it, porosity testing. Of course, pinholes in a newly applied coating can leave the substrate exposed to the environment and vulnerable to corrosion. It...
11th September 2017The Importance of Asset Management Systems in Long Term Corrosion Control Mark Dragar, Asset Manager Pipelines, Jemena Asset Management Too often we as engineers and managers of critical infrastructure focus on the technical details in a bid to control corrosion. We focus on the design and the performance of the products we specify to ensure...
11th September 2017Geraldton Concrete Silos Remediation: A case study in the structural strengthening and concrete repair practices utilised for the ongoing operation efficiency and durability of concrete silos J Barry, S Robertson & A Mesic, Freyssinet Australia Pty Ltd Project Overview The CBH Group is one of Australia’s leading grain organisations, a cooperative with operations including grain storage,...
11th September 2017Preventing Coastal Corrosion (Tea Staining) When used properly, stainless steel enjoys a strong and enduring reputation for visual appeal and structural integrity in a wide range of applications and environments. But, like all materials, stainless steel may become stained or discoloured over time, impairing the overall look. This brown discolouration – tea staining – has...
11th September 2017The world’s first hybrid corrosion protection systems for prestressed concrete bridges C. Christodoulou, R. Kilgour – AECOM Many reinforced concrete structures suffer from corrosion damage. Causes include salt ingress due to the application of de-icing salts during winter maintenance, exposure to marine environments and carbonation of the concrete. Corrosion is an electrochemical process and as...
11th September 2017Tanks for the Refreshment: volume transport of clean, health essentials of life Tanks are everywhere. In their infinite variety of shapes, sizes and uses, they are vital to a functioning society. When it comes to food, however, and chances of contamination or colonization by bacteria, there is only one reliable candidate. That is why trucks...
11th September 2017
The Australasian Corrosion Association (ACA) is committed to achieving and maintaining a safe and hazard-free environment for our employees, students, contractors, volunteers and delegates. Our OH&S Policy outlines this commitment. The ACA has been formally recording its safety record since 1st February 2015 and as of the 1st August 2017, the ACA recorded its 943...
11th September 2017