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Influence of Pore Structure on Chloride Penetration in Cement Pastes Subject to Wetting-Drying Cycles
Joint Authors
Ge, Zhi
Chang, Honglei
Liu, Jian
Zuo, Zhiwu
Qu, Mingyue
Wang, Fei
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-12
Country of Publication
Egypt
No. of Pages
10
Abstract EN
Copious studies have discovered a phenomenon that a chloride concentration peak appears on the surface of concrete under cyclic drying-wetting environments.
In such cases, the chloride diffusion coefficient (D) obtained through directly fitting the standard error function of Fick’s second law is no longer accurate.
The more reliable D obtained by the method proposed by Andrade is employed in this research to investigate the influence of pore structure on chloride penetration rate of pastes.
The results show that both the effective coefficient (Deff) and the apparent coefficient (Dapp) increase with total porosity, the most probable pore size, and water absorption porosity, suggesting that the increase of the three pore structure parameters accelerates chloride penetration rate under cyclic wetting-drying condition.
The increase of the three parameters makes more room available and eases the difficulty for salt solution to enter the matrix and thus leads to the augmentation of chloride transporting in matrix.
American Psychological Association (APA)
Chang, Honglei& Zuo, Zhiwu& Qu, Mingyue& Wang, Fei& Ge, Zhi& Liu, Jian. 2019. Influence of Pore Structure on Chloride Penetration in Cement Pastes Subject to Wetting-Drying Cycles. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1119897
Modern Language Association (MLA)
Chang, Honglei…[et al.]. Influence of Pore Structure on Chloride Penetration in Cement Pastes Subject to Wetting-Drying Cycles. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1119897
American Medical Association (AMA)
Chang, Honglei& Zuo, Zhiwu& Qu, Mingyue& Wang, Fei& Ge, Zhi& Liu, Jian. Influence of Pore Structure on Chloride Penetration in Cement Pastes Subject to Wetting-Drying Cycles. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1119897
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119897