Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Service life estimation of reinforced concrete structures made using Cr-bearing rebars in microcell corrosion environments
Reinforced concrete structures made using Cr-bearing rebars subject to microcell corrosion were assumed with the aim of developing Cr-bearing rebars having the required corrosion resistance in microcell corrosion environments. Their service lives were then estimated for each type of corrosion environment based on a microcell corrosion rate model, and requirements for Cr-bearing rebars to achieve a service life of over 100 years were calculated. As a result, the service lives of concrete structures reinforced with Cr-bearing rebars were found to increase as the Cr content increased in all types of corrosion environments. Also, Cr-bearing rebars with Cr contents of not less than 11% and not less than 7% ensured service lives of over 100 years in harsh and moderate chloride attack zones, respectively. In carbonation zones, a Cr content of not less than 3% was proven to provide corrosion resistance for over 100 years.
Service life estimation of reinforced concrete structures made using Cr-bearing rebars in microcell corrosion environments
Reinforced concrete structures made using Cr-bearing rebars subject to microcell corrosion were assumed with the aim of developing Cr-bearing rebars having the required corrosion resistance in microcell corrosion environments. Their service lives were then estimated for each type of corrosion environment based on a microcell corrosion rate model, and requirements for Cr-bearing rebars to achieve a service life of over 100 years were calculated. As a result, the service lives of concrete structures reinforced with Cr-bearing rebars were found to increase as the Cr content increased in all types of corrosion environments. Also, Cr-bearing rebars with Cr contents of not less than 11% and not less than 7% ensured service lives of over 100 years in harsh and moderate chloride attack zones, respectively. In carbonation zones, a Cr content of not less than 3% was proven to provide corrosion resistance for over 100 years.
Service life estimation of reinforced concrete structures made using Cr-bearing rebars in microcell corrosion environments
Lebensdauervorhersage von Stahlbetonkonstruktionen mit Cr-legierten Betonstählen bei Mikrozellenkorrosion
Tae, Sung-Ho (Autor:in) / Kyung, Je-Woon (Autor:in) / Ujiro, Takumi (Autor:in) / Shin, Sung-Woo (Autor:in)
ISIJ International ; 47 ; 1315-1323
2007
9 Seiten, 7 Bilder, 3 Tabellen, 34 Quellen
Aufsatz (Zeitschrift)
Englisch
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