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This paper focuses on the Norwegian offshore sector and on the type of coating systems that are currently selected for new platforms. Where shall the coating be used, what coatings are chosen and why have they been chosen.
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A successful business relies upon the ability to accumulate wealth. That wealth can come in many forms: increased value of business, real estate, personal possessions, investments, or even other businesses. Have you thought about the circumstances that could take away some or all of what you have worked to accumulate?
Shielding of cathodic protection (CP) by pipeline coatings poses a serious threat to pipeline integrity. The difficulty in pipeline coating selection to avoid shielding is that the same properties that make a pipeline coating a good corrosion mitigation material can also lead to CP shielding. The key to proper coating selection is to select a coating that has the necessary properties to provide good corrosion protection but also one that, when disbondment and failure occurs, fails in such a way to allow effective cathodic protection.
Using concrete for enhancing a property’s value has opened the door to a wide variety of new materials and techniques, which are described and compared here.
Since the selection and application of safety-related coatings in commercial US nuclear power plants began in the early 1950's, many changes have occurred in coatings technology, industry understanding of the performance of coatings in the nuclear plant environment, and regulatory oversight of these coatings.
Nonskid coatings are typically used on the flight deck of aircraft carriers and high traffic areas of a ships’ deck. At this time, there are only a few approved materials available for use as nonskid coating for landing areas onboard US Navy vessels. Nonskid coating materials with improved performance, lower cost, and decreased maintenance are currently in development.
After 35 years or longer in service, the concrete infrastructure in wastewater collection systems and treatment plants has deteriorated due to various corrosion and physical degradation mechanisms. This paper reviews the major mechanisms that cause deterioration of concrete and protective coatings. Also, examples of infrastructure degradation are presented along with a discussion of the best diagnostic methods for condition assessment of concrete for the various mechanisms.
This presentation is designed to assist wastewater treatment plant maintenance superintendents effectively design and implement maintenance painting projects. Recommended practices are described for all project phases, from the initial corrosion survey, through cost estimating, specification preparation, bidding, project administration, field inspection, and OSHA, environmental compliance and plant operation considerations.
For almost two decades, organizations supporting the ironworker’s industry have sought constructive solutions to improve the footing for ironworkers during erection of structural steel. This issue, specifically as it relates to the coatings industry, is the loss of traction between the ironworker’s footwear and the coated steel beam, and the potential for the worker of falling to their death as a result of slipping on wet or damp coated steel beam surfaces.
The effects of three blasting methods utilised for surface preparation upon the behavior of five organic coating systems are investigated. The blasting methods include dry blast cleaning, UHP and UHPAB. It is shown that pull-off strength, pull-off failure mode, and delamination are significantly affected by the surface preparation method.
Focusing on the invention of new measurement methods in order to analyze hull coating efficiency more precisely is one approach. However, it is possible to treat performance data from in-situ observations carried out at specified intervals onboard any vessel (over 10,000 dwt) by means of a data collection protocol.
Current coating practice requires the thickness of anti-corrosion organic coatings to be over 250 for immersion parts of ships and offshore structures and the protective performance of these coatings has been evaluated by destructive and qualitative analysis. Recently, Electrochemical Impedance Spectroscopy (EIS) method has been employed, as an alternative, to evaluate corrosion resistance of organic coatings. This method is characterized as being nondestructive, reproducible, and quantitative in evaluating aging of organic coatings.