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http://dx.doi.org/10.12652/Ksce.2010.30.4A.343

Durability Analysis and Development of Probability-Based Carbonation Prediction Model in Concrete Structure  

Jung, Hyunjun (인천대교(주) 기술본부 구조물/시설물팀)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.4A, 2010 , pp. 343-352 More about this Journal
Abstract
Recently, many researchers have been carried out to estimate more controlled service life and long-term performance of carbonated concrete structures. Durability analysis and design based on probability have been induced to new concrete structures for design. This paper provides a carbonation prediction model based on the Fick's 1st law of diffusion using statistic data of carbonated concrete structures and the probabilistic analysis of the durability performance has been carried out by using a Bayes' theorem. The influence of concerned design parameters such as $CO_2$ diffusion coefficient, atmospheric $CO_2$ concentration, absorption quantity of $CO_2$ and the degree of hydration was investigated. Using a monitoring data, this model which was based on probabilistic approach was predicted a carbonation depth and a remaining service life at a variety of environmental concrete structures. Form the result, the application method using a realistic carbonation prediction model can be to estimate erosion-open-time, controlled durability and to determine a making decision for suitable repair and maintenance of carbonated concrete structures.
Keywords
Durability Analysis; Carbonation Prediction Model; Statistic Data; Probabilistic Analysis; Design Parameters;
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Times Cited By KSCI : 4  (Citation Analysis)
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