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Effectiveness of various types of coating materials applied in reinforced concrete exposed to freeze–thaw cycles and chlorides
Abstract
This study assesses the durability of coated and uncoated concrete surfaces protected with four Different coating materials: water-soluble (BW), solvent-based (BR), mineral (MI), and epoxy (EP). The durability assessment includes evaluating the absorption rate of water, pull-of adhesion strength, and coating material thickness. Concrete samples were subjected to immersion in regular water and a 7% urea solution, followed by cyclic freezing and thawing. Furthermore, the diffusion of chloride ions in concrete was evaluated using the impressed voltage method, with the samples exposed to the aging process, immersed in a 3.5% NaCl solution. The results indicate that EP and BW coatings were significantly affected by the presence of urea and freeze–thaw cycles, resulting in a 43% and 47% reduction in pull-of adhesion strength, respectively. Notably, the MI-coated concrete samples exposed to urea solution and the freeze–thaw cycles exhibited a significant reduction in the absorption rate due to the accumulation of crystals on the coating surface, resulting in reduced porosity of the material.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1038/s41598-023-40203-8
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Scientific Reports
no. 13,
ISSN: 2045-2322 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Millan Ramirez G., Byliński H., Niedostatkiewicz M.: Effectiveness of various types of coating materials applied in reinforced concrete exposed to freeze–thaw cycles and chlorides// Scientific Reports -Vol. 13, (2023), s.12977-
- DOI:
- Digital Object Identifier (open in new tab) 10.1038/s41598-023-40203-8
- Sources of funding:
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- COST_FREE This research received no external funding.
- Verified by:
- Gdańsk University of Technology
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