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Korrosion rostfreier Stähle in chloridhaltigem und karbonatisiertem Beton / Corrosion Behaviour of Stainless Steels in Chloride Contaminated and Carbonated Concrete

Autor(en):



Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Restoration of Buildings and Monuments, , n. 3, v. 6
Seite(n): 273-292
DOI: 10.1515/rbm-2000-5476
Abstrakt:

The paper deals with the corrosion resistance of different stainless steels in chloride contaminated and carbonated concrete. Stainless steel reinforcement has a higher corrosion resistance as compared to the normal carbon steel reinforcement; stainless steels can, however, be subject to localized corrosion if the chloride content in the concrete exceeds a certain critical value. This critical value depends on the pH value of the concrete (i.e. carbonated or alkaline concrete), the temperature, the corrosion potential (function of environmental conditions), and the composition and microstructure of the stainless steel. Furthermore, in the rehabilitation of corroding reinforced concrete structures, stainless steel is often used in structures reinforced with normal carbon steel and galvanic coupling can occur. The results of measurements of free corrosion potential, corrosion rate and macrocouple current in reinforced concrete specimens are reported as a function of chloride concentration and humidity. The consequence of coupling with carbon steel reinforcement is also considered.

Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.1515/rbm-2000-5476.
  • Über diese
    Datenseite
  • Reference-ID
    10532575
  • Veröffentlicht am:
    17.12.2020
  • Geändert am:
    19.02.2021
 
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