Service Life Estimation of Reinforced Concrete Structures Made Using Cr-bearing Rebars in Microcell Corrosion Environments

Autor:	Je-Woon Kyung, Sung-Woo Shin, Sung-Ho Tae, Takumi Ujiro
Rok vydání:	2007
Předmět:	Materials science Bearing (mechanical) Mechanical Engineering Carbonation Metals and Alloys Reinforced concrete Chloride Corrosion law.invention Mechanics of Materials law Service life Materials Chemistry medicine Microcell Composite material medicine.drug
Zdroj:	ISIJ International. 47:1315-1323
ISSN:	1347-5460 0915-1559
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e1d91327260e15b9d263a539b6058ee0 https://doi.org/10.2355/isijinternational.47.1315 Zobrazit plný text záznamu