The effect of intelligent coating selection on project delays / James McDonald in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 34, N° 3 (03/2017)  

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 34, N° 3 (03/2017) . - p. 42-48 Titre : The effect of intelligent coating selection on project delays Type de document : texte imprimé Auteurs : James McDonald, Auteur Année de publication : 2017 Article en page(s) : p. 42-48 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Gestion de projets Matériaux intelligents Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Delay … quite possibly the most dreaded word in a project next to its vile kindred, the term "over budget". Painting and lining activities in various parts of the world can be hit-or-miss propositions with respect to weather. One day conditions may be perfect, while the next, temperatures may plummet below 50 F and stay there for a week. In the meantime, the project clock keeps ticking and further delays threaten the budget and scheduled completion times. Project delays have become the norm rather than the exception (Fig. 1). A recent study suggests that roughly half of oil and gas megaprojects reported schedule delays of more than 25 percent when measured against initial schedule estimates.1 These delays can be attributed to numerous causes such as overly optimistic schedules, flawed specifications, poor productivity, congestion of trades and weather. In relation to delays, why is it that painting always seems to be the guilty party ? Have we not learned anything about the timing of this craft ? After all, it’s one of the oldest trades in the world, next to hunting food and making fire. Our ancient ancestors first used paint to draw pictures in caves and many millennia later, after sending a man to the moon, we still struggle with paint schedules. How can this be ? In the scope of a project, it’s important to remember one very crucial element : painting is very nearly the last thing to take place. Every holdup from the very inception of a project piles up at the end, just when painting needs to happen. Project setbacks can come from permitting, design, engineering, procurement, fabrication and everywhere in between. Even with all of these areas contributing to schedule creep, we don’t often see schedule extensions. This forces the last item on the list — painting — to make up time so that deadlines are met. It could perhaps go unsaid that the idea of making up lost time with the trade that is most likely to be affected by poor weather is fraught with problems and disappointment. Note de contenu : - Atmospheric considerations - Minimizing repairs - FIGURES : 1. Schedule delays are the norm, not the exception. All figures courtesy of the author unles otherwise - 2. Average minimum and maximum temperatures in New Orleans - 3. Average rainy days (rain/snow) in New Orleans - 4. Average minimum and maximum temperatures in New York - 5. Average rainy days (rain/snow) in New York - 6. Different coating manufacturers produce coating systems in the same specification category but with throughput variations of up to 50 percent En ligne : http://www.paintsquare.com/archive/?fuseaction=view&articleid=6027 Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28368 [article]

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