| Titre : |
Coating evaluation process for municipal manholes |
| Type de document : |
texte imprimé |
| Auteurs : |
Bob Murphy, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 26-33 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Entretien et réparations
Matériaux cimentaires -- Revêtements protecteurs
Métaux -- Revêtements protecteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
From its origin, the word “manhole” had nothing to do with sewers. The original use came from the days of sailing ships to denote access points between a ship’s decks. Later the term was used to describe sewer access points due to the similarity of providing access for a human to move from one level to another — in this case from street level to the sewers underneath for maintenance. In the United States alone, an estimated 20 million of these access points dot roadways, sidewalks, fields and other areas. Evaluating and estimating the service life of these structures has become of critical importance to the overall operation of sewer collection systems. |
| Note de contenu : |
- Evaluating manhole maintenance systems
- Performing manhole maintenance - day one and two
- Verifying results via field inspection
- Lining it all up
- FIGURES : 1. For manholes facing more aggressive service environments, it is advisable to apply a protective lining material as a topcoat to mitigate the effects of corrosion on the restored surfaces - 2. Corrosive gases and liquids inside manhole structures cause concrete to break down and steel to corrode, potentially creating leaks and subjecting sanitary collection systems to unwanted water infiltration that further taxes the systems - 3. Spraying and hand-troweling a stand-alone calcium aluminate mortar has proven to be a sufficient long-term repair for manholes not subjected to significant corrosive attacks - 4. Manhole structures tend to deteriorate over time due to exposure to a variety of corrosive materials |
| En ligne : |
http://www.paintsquare.com/archive/?fuseaction=view&articleid=5914 |
| Format de la ressource électronique : |
Web |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28392 |
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 33, N° 9 (09/2016) . - p. 26-33
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