This paper will explore the concept of a “Standard of Care” as applied to coating inspection on industrial coatings projects. Establishing a “Standard of Care” for coating inspection sets an expectation for those providing, procuring or otherwise interacting with inspectors on an industrial coatings job.
Composite repairs have been applied to pipelines and piping systems for structural reinforcement after external corrosion. Such repairs may consist of glass or carbon fibers embedded in a matrix of epoxy. Typically, these repairs are hand applied using either wet lay-up systems or prefabricated rolls of composite sleeve. In some applications, pipeline continued corrosion growth under composite repairs were reported using Inline Inspection (ILI) which raises a concern about the integrity of the metallic piping under composite repairs. When continued corrosion is detected by ILI, a difficulty is typically faced due to the inability to measure pipeline remaining thickness under such repairs. To resolve this challenge, this paper will discuss multiple inspection and corrosion monitoring techniques for metal loss under composite repairs. To measure the pipeline wall thickness due to internal corrosion, one or more of the three (3) Non-Destructive Testing (NDT) technologies namely; Dynamic Response Spectroscopy (DRS), Multi-skip Ultrasonic (MS-UT) and digital radiography were evaluated and found capable. To monitor for external corrosion, a scheduled visual inspection of the composite repair would be the first inspection step. If the composite repair appears to be intact then the visual inspection would suffice and the repair should be acceptable to its design life. If the original defect is external corrosion and a scheduled visual inspection of the composite repair shows damage to the composite repair then inspection to assess the integrity of the substrate must be used before permanently fixing the composite repair. For this scenario, digital radiography or MS-UT are recommended to assess the condition of the substrate
The logistics of painting commercial buildings can be focused into four categories: Pre-inspection of the building, communication, planning, scheduling and implementation. The challenges of painting commercial stores during operation include, but are not limited to, pre-existing building conditions, management cooperation, weather conditions, store schedule, customer accessibility to merchandise, and protecting store merchandise and customer property from overspray or equipment damage.
The marine inspector is responsible for monitoring the coating specification in its simplest form. Applicators and shipyards get caught up with the inspectors when warranties are mentioned. As I have discussed with owners, yards and applicators, I know of no way to dial in an inspectors criteria based upon warranty. The inspector’s criteria will be based upon the coating specifications. How he handles this depends upon his training, experience and education. Many third party inspectors come from coating companies or applicators. They may or may not get certification from NACE or SSPC.
Often when a polymeric flooring system fails, the cause of the problem is unknown. Forensic testing is used to determine the cause of failure while eliminating other potential causes. A basic understanding of the approach to a forensic investigation and the types of testing used will help aid in correcting the problem so future failures and project costs are reduced.
This study is a result of analyzing the data and statistics from the Brooklyn Bridge project collected during lead paint removal operation. The $508 million Brooklyn Bridge Contract 6, which is still ongoing, commenced in 2010 as a part of New York City Department of Transportation’s (NYCDOT) $2.6 billion East River Bridges Capital Program.