In this “Never Again” article, Jon Cavallo explores whether the role of solvents and/or thinners is simply to control viscosity. As part of this review, an investigation of observed bridge coating failures near Panama City, Florida, USA, was conducted on several fronts.
Researchers at Penn State University, sponsored by the EPRI, are applying non-destructive, 3-D technology to study corrosion in the power plant industry. They are examining how contaminants in water cycles affect the integrity of steel pipes and tubing in power generation systems.
The National Center for Manufacturing Sciences (NCMS), a cross-industry technology development consortium, has developed a corrosion risk-based assessment tool to identify vulnerabilities early. In turn, it allows for more proactive mitigation strategies.
Many pipeline companies ignore the occurrence of external corrosion when cathodic protection (CP) is considered adequate. In these situations, understanding the failure mode of the coating and why CP cannot adequately protect the pipe under certain disbonded coating types is critical.
By using a combination of metal and polyethylene pipes in the new pipeline network and increasing the electrical resistance of the interference circuit, the problem of cathodic protection (CP) interference in the new network was solved.
In their 2024 AMPP paper, these authors proposed a technique for early-stage pitting detection through machine learning. Pitting is a localized form of corrosion that can cause cavities and structural failure in metallic materials, and it can be challenging to detect and prevent.
According to Utah State’s primary researcher involved in the study, one of the most important indicators for identifying failing pipelines is water main break rates. Pipe performance continues to be impacted by soil corrosivity, and the replacement of asbestos cement and cast-iron pipe is creating a shift in predominant pipe materials.
After finding a water leak from its holding tank, the owner/operator of a town water tower reached out to Total Access Solutions Co. (TASC) to request an inspection. One TASC got on site, investigators were able to deduce more information about the potential cause(s) of the premature failure.
This two-part article reviews the corrosion risk assessment, structural considerations, and engineering solutions for the steel-reinforced structural elements of an aging concrete building. This building had exhibited accelerated corrosion in corrosive environments.
When compared with metals, polymeric materials tend to be more resistant to chloride ions and hydrochloric acid. However, polymeric materials are generally weaker and softer; less resistant to concentrated sulfuric and oxidizing acids and solvents; and subject to temperature limitations.
Based largely on its self-healing ability under corrosion attack, scientists believe they have found an anti-corrosion polymer that “represents a promising thermoplastic alternative to the thermosetting resins commonly used for metallic corrosion protection.
In a newly released investigative report, the Transportation Safety Board of Canada says external corrosion led to a natural gas pipeline rupture near Fox Creek, Alberta, which caused an explosion and fire near a small community.
The Texas Department of Transportation issued a three-year grant to evaluate deteriorating and aging highway bridges. The approach includes non-destructive evaluation, on-site load testing, and computer simulations to help engineers determine the current bridge conditions.
In this case study, significant corrosion was observed on lines supplying air handling units and swimming pools at a Dubai hotel. According to the client, the chilled water application system was installed three years prior and initially handled by a maintenance contractor before being handed over to the asset owner.
In a recent National Construction Safety Team (NCST) Advisory Committee meeting, National Institute of Standards and Technology (NIST) investigators shared details of their investigation into the partial collapse of the Champlain Towers South building in Surfside, Florida, USA.