Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor
A reliability-based method for identifying appropriate safety factors for use in predicting the service life (i.e., corrosion-free life) of concrete structures subject to carbonation is described in this paper. Reinforced concrete (RC) columns located in CO2-rich urban environments were investigated...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2430630 |
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| _version_ | 1832555411762315264 |
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| author | Seung-Woo Pack Min Sun Jung Jun Won Kang Ki Yong Ann Janghwan Kim |
| author_facet | Seung-Woo Pack Min Sun Jung Jun Won Kang Ki Yong Ann Janghwan Kim |
| author_sort | Seung-Woo Pack |
| collection | DOAJ |
| description | A reliability-based method for identifying appropriate safety factors for use in predicting the service life (i.e., corrosion-free life) of concrete structures subject to carbonation is described in this paper. Reinforced concrete (RC) columns located in CO2-rich urban environments were investigated to estimate their service life. Carbonation depths and cover depths were measured for sound, cracked, and jointed concrete cover conditions. The measurements were used to calculate safety factors for columns subject to carbonation. Goodness-of-fit tests were used to obtain optimal probability distributions for carbonation depths and cover depths. A reliability index of 1.28, corresponding to a 10% probability of corrosion initiation, was taken as a threshold for determining the safety factor. The safety factor proposed in this paper can be used to estimate the service life of RC structures subject to carbonation. The sensitivity of the safety factor to the casting method and coefficient of variation of the cover depth were also evaluated. |
| format | Article |
| id | doaj-art-2bc8e2f0d5ff4ee8bbfd4652f6f4f6a7 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2bc8e2f0d5ff4ee8bbfd4652f6f4f6a72025-02-03T05:48:18ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/24306302430630Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety FactorSeung-Woo Pack0Min Sun Jung1Jun Won Kang2Ki Yong Ann3Janghwan Kim4Hyundai Engineering and Construction, Yongin 16891, Republic of KoreaDepartment of Civil and Environmental Engineering, Hanyang University, Ansan 15588, Republic of KoreaDepartment of Civil Engineering, Hongik University, Seoul 04066, Republic of KoreaDepartment of Civil and Environmental Engineering, Hanyang University, Ansan 15588, Republic of KoreaDaelim Industrial Corporation Ltd., Seoul 146-12, Republic of KoreaA reliability-based method for identifying appropriate safety factors for use in predicting the service life (i.e., corrosion-free life) of concrete structures subject to carbonation is described in this paper. Reinforced concrete (RC) columns located in CO2-rich urban environments were investigated to estimate their service life. Carbonation depths and cover depths were measured for sound, cracked, and jointed concrete cover conditions. The measurements were used to calculate safety factors for columns subject to carbonation. Goodness-of-fit tests were used to obtain optimal probability distributions for carbonation depths and cover depths. A reliability index of 1.28, corresponding to a 10% probability of corrosion initiation, was taken as a threshold for determining the safety factor. The safety factor proposed in this paper can be used to estimate the service life of RC structures subject to carbonation. The sensitivity of the safety factor to the casting method and coefficient of variation of the cover depth were also evaluated.http://dx.doi.org/10.1155/2018/2430630 |
| spellingShingle | Seung-Woo Pack Min Sun Jung Jun Won Kang Ki Yong Ann Janghwan Kim Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor Advances in Materials Science and Engineering |
| title | Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor |
| title_full | Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor |
| title_fullStr | Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor |
| title_full_unstemmed | Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor |
| title_short | Assessment of Durability of Concrete Structure Subject to Carbonation with Application of Safety Factor |
| title_sort | assessment of durability of concrete structure subject to carbonation with application of safety factor |
| url | http://dx.doi.org/10.1155/2018/2430630 |
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