Preparing and lining concrete for immersion service / Robert Maley in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 31, N° 3 (03/2014)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 31, N° 3 (03/2014) . - p. 48-59 Titre : Preparing and lining concrete for immersion service : Steps and procedures to avoid failures Type de document : texte imprimé Auteurs : Robert Maley, Auteur Année de publication : 2014 Article en page(s) : p. 48-59 Langues : Américain (ame) Catégories : Eaux usées Eaux usées -- Stations de traitements Immersion Matériaux cimentaires -- Détérioration Revêtements en béton Index. décimale : 667.9 Revêtements et enduits Résumé : The practice of lining concrete substrates has increased exponentially over the last 30 years, most notably in the wastewater treatment industry. Environmental regulations, coupled with changes to treatment processes, have resulted in far more severe environments in which concrete can and will corrode. Other than the floor coating field, very few contractors specialize in preparing and lining concrete structures, as carbon steel lining opportunities far outweigh those of concrete substrates. Accordingly, the majority of craft workers, both young and old, have far more training and experience preparing and lining steel substrates. It has been the author's observation that many of the aforementioned craft workers, and in many cases, management personnel, do not fully comprehend the difficulty and distinctions inherent to a concrete lining project. A lack of understanding and experience extends beyond the contracting level. Many engineers, consultants, and inspectors do not fully comprehend the idiosyncrasies of lining concrete. When all the aforementioned parties converge upon a complex lining project, the potential for a perfect storm exists. This article examines many of the common errors that often occur when concrete sub-strates are rehabilitated and offers practical solutions for prevention of said errors. Note de contenu : - CHRONOLOGICAL EXAMINATION OF TYPICAL MISSTEPS : Surface preparation phase - Restoration/resurfacing phase - Lining application phase - Testing and repair phase - FINGER POINTING OR AVOIDANCE - DESIGN PHASE CONSIDERATIONS Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21656 [article]

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