A simplified probabilistic model for the combined action of carbonation and chloride ingress
| Autor: | Ilhwan You, Xingji Zhu, Goangseup Zi, Lianfang Sun |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Cement
Materials science Nuclear engineering Carbonation 0211 other engineering and technologies 020101 civil engineering Statistical model 02 engineering and technology Building and Construction Chloride 0201 civil engineering Corrosion 021105 building & construction medicine General Materials Science Physics::Chemical Physics Civil and Structural Engineering medicine.drug |
| Zdroj: | Magazine of Concrete Research. 71:327-340 |
| ISSN: | 1751-763X 0024-9831 |
| DOI: | 10.1680/jmacr.18.00140 |
| Popis: | This paper presents an improved numerical model for the reliability analysis of corrosion initiation due to the combined action of carbonation and chloride ingress. The coupled mechanism of carbon dioxide, chloride ions, heat and moisture is considered in the model. The probability of corrosion initiation is evaluated by means of a single limit state function in which the critical concentration of chloride ions depends on the degree of carbonation. In addition, the coupled diffusion coefficients are interpolated linearly depending on the degree of carbonation in order to simplify the structure of the model without compromising accuracy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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