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An Inspector’s duties can vary widely from project to project, quite often straying from the traditional observe, verify, and record. This paper examines the plethora of problems that can develop should an inspector be assigned too much or too little responsibility, as well as how best to avoid such developments.
Recognizing the need to elevate craft workers’ skills within the industrial coatings industry, the International Union of Painters and Allied Trades (IUPAT) became involved in the development of the published SSPC ACS 1/NACE No.13 Joint Standard and the Body of Knowledge contained within. Since the development of the joint standard, the IUPAT has taken advantage of the opportunities afforded by the standard and remained committed to ensuring that its members are properly trained and certified as prescribed by the industry standard.
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A continuing problem with coatings applied to sharp edges of a structure is the corrosion that often develops at the apex of the edge. The conventional wisdom is that the reduction of film thickness, due to coating pulling away at the edge during the curing of the coating, is the primary cause for the onset of corrosion. This theory, however, is not necessarily correct, both from a mechanistic and practical point of view.
The use of duplex coating systems (hot dip galvanizing or thermal spray coating with one or more liquid-applied coatings) for long term protection of structural steel is becoming more mainstream in many industries. This paper describes the advantages of employing duplex coating systems as well as some important considerations for designers prior to specifying their use. It also highlights an ongoing initiative to help agencies more efficiently and effectively use duplex coatings on steel bridges by developing guidelines, standards, and other materials.