Prediction of Chloride Penetration into Hardening Concrete
In marine and coastal environments, penetration of chloride ions is one of the main mechanisms causing concrete reinforcement corrosion. Currently, most of experimental investigations about submerged penetration of chloride ions are started after the four-week standard curing of concrete. The furthe...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/616980 |
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| author | Wei-Jie Fan Xiao-Yong Wang |
| author_facet | Wei-Jie Fan Xiao-Yong Wang |
| author_sort | Wei-Jie Fan |
| collection | DOAJ |
| description | In marine and coastal environments, penetration of chloride ions is one of the main mechanisms causing concrete reinforcement corrosion. Currently, most of experimental investigations about submerged penetration of chloride ions are started after the four-week standard curing of concrete. The further hydration of cement and reduction of chloride diffusivity during submerged penetration period are ignored. To overcome this weak point, this paper presents a numerical procedure to analyze simultaneously cement hydration reaction and chloride ion penetration process. First, using a cement hydration model, degree of hydration and phase volume fractions of hardening concrete are determined. Second, the dependences of chloride diffusivity and chloride binding capacity on age of concrete are clarified. Third, chloride profiles in hardening concrete are calculated. The proposed numerical procedure is verified by using chloride submerged penetration test results of concrete with different mixing proportions. |
| format | Article |
| id | doaj-art-bc47e3ca21b945048c7d5dad358528a0 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-bc47e3ca21b945048c7d5dad358528a02025-02-03T01:02:26ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/616980616980Prediction of Chloride Penetration into Hardening ConcreteWei-Jie Fan0Xiao-Yong Wang1Department of Architectural Engineering, Kangwon National University, Chuncheon-si 200 701, Republic of KoreaDepartment of Architectural Engineering, Kangwon National University, Chuncheon-si 200 701, Republic of KoreaIn marine and coastal environments, penetration of chloride ions is one of the main mechanisms causing concrete reinforcement corrosion. Currently, most of experimental investigations about submerged penetration of chloride ions are started after the four-week standard curing of concrete. The further hydration of cement and reduction of chloride diffusivity during submerged penetration period are ignored. To overcome this weak point, this paper presents a numerical procedure to analyze simultaneously cement hydration reaction and chloride ion penetration process. First, using a cement hydration model, degree of hydration and phase volume fractions of hardening concrete are determined. Second, the dependences of chloride diffusivity and chloride binding capacity on age of concrete are clarified. Third, chloride profiles in hardening concrete are calculated. The proposed numerical procedure is verified by using chloride submerged penetration test results of concrete with different mixing proportions.http://dx.doi.org/10.1155/2015/616980 |
| spellingShingle | Wei-Jie Fan Xiao-Yong Wang Prediction of Chloride Penetration into Hardening Concrete Advances in Materials Science and Engineering |
| title | Prediction of Chloride Penetration into Hardening Concrete |
| title_full | Prediction of Chloride Penetration into Hardening Concrete |
| title_fullStr | Prediction of Chloride Penetration into Hardening Concrete |
| title_full_unstemmed | Prediction of Chloride Penetration into Hardening Concrete |
| title_short | Prediction of Chloride Penetration into Hardening Concrete |
| title_sort | prediction of chloride penetration into hardening concrete |
| url | http://dx.doi.org/10.1155/2015/616980 |
| work_keys_str_mv | AT weijiefan predictionofchloridepenetrationintohardeningconcrete AT xiaoyongwang predictionofchloridepenetrationintohardeningconcrete |