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2018-10-17 - Colloque/Présentation - communication orale - Anglais - 1 page(s)

Vitry Véronique , "Failure of galvanized steel water pipes: it’s not always what you think" in Materials Science and Technology 2018, Columbus, USA, 2018

  • Codes CREF : Chimie des surfaces et des interfaces (DI1327), Métallographie (DI2330)
  • Unités de recherche UMONS : Métallurgie (F601)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)

Abstract(s) :

(Anglais) Galvanized steel pipes are widely used for sanitary water pipes in housing and commercial building throughout Europe. For the last 15 years, the number of early failure cases (building 5 years or less has increased). The UMONS lab has investigated several galvanized steel pipes failures, some leading to extensive damage to the buildings. The causes of the failure are various : bad quality of the welding, bad quality of the galvanized layer, unsufficient zinc thickness, and suspected microbial induced corrosion linked with the presence of sulfate reducing bacateria in the drinking water.