Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion
Chloride-induced corrosion is one of the main causes of concrete deterioration and imposes a challenge to sustainability. Traditional techniques to repair corroded structures consisted of basically removing the damaged area, which was either economical or sustainable. Therefore, electrochemical chlo...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/6715283 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832555016819310592 |
|---|---|
| author | Thamara Tofeti Lima Ki Yong Ann |
| author_facet | Thamara Tofeti Lima Ki Yong Ann |
| author_sort | Thamara Tofeti Lima |
| collection | DOAJ |
| description | Chloride-induced corrosion is one of the main causes of concrete deterioration and imposes a challenge to sustainability. Traditional techniques to repair corroded structures consisted of basically removing the damaged area, which was either economical or sustainable. Therefore, electrochemical chloride extraction (ECE) gained popularity for being an efficient nondestructive treatment applied temporarily to structures. On this line, this manuscript aims to raise the efficiency of ECE by an optimal decision of the treatment setup concerning the electrolyte choice. Three different electrolytes were tested, namely, tap water, calcium hydroxide, and lithium borate. Experimental results pointed to lithium borate as the most efficient electrolyte for extracting chlorides while calcium hydroxide was a better choice to repassivate the structure and even heal cracks, due to a possible electrodeposition of the electrolyte ions on the cement matrix. Thus, depending on the main goal of the treatment, different electrolytes achieve a better performance, which highlights the importance of pretreatment evaluation to see in which stage of corrosion damage is the structure. |
| format | Article |
| id | doaj-art-ec3cf90c150547d5ae88330290be8a6e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-ec3cf90c150547d5ae88330290be8a6e2025-02-03T05:49:54ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/67152836715283Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced CorrosionThamara Tofeti Lima0Ki Yong Ann1Department of Civil and Environmental System Engineering, Hanyang University, Ansan 15888, Republic of KoreaDepartment of Civil and Environmental System Engineering, Hanyang University, Ansan 15888, Republic of KoreaChloride-induced corrosion is one of the main causes of concrete deterioration and imposes a challenge to sustainability. Traditional techniques to repair corroded structures consisted of basically removing the damaged area, which was either economical or sustainable. Therefore, electrochemical chloride extraction (ECE) gained popularity for being an efficient nondestructive treatment applied temporarily to structures. On this line, this manuscript aims to raise the efficiency of ECE by an optimal decision of the treatment setup concerning the electrolyte choice. Three different electrolytes were tested, namely, tap water, calcium hydroxide, and lithium borate. Experimental results pointed to lithium borate as the most efficient electrolyte for extracting chlorides while calcium hydroxide was a better choice to repassivate the structure and even heal cracks, due to a possible electrodeposition of the electrolyte ions on the cement matrix. Thus, depending on the main goal of the treatment, different electrolytes achieve a better performance, which highlights the importance of pretreatment evaluation to see in which stage of corrosion damage is the structure.http://dx.doi.org/10.1155/2020/6715283 |
| spellingShingle | Thamara Tofeti Lima Ki Yong Ann Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion Advances in Materials Science and Engineering |
| title | Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion |
| title_full | Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion |
| title_fullStr | Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion |
| title_full_unstemmed | Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion |
| title_short | Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion |
| title_sort | efficiency of different electrolytes on electrochemical chloride extraction to recover concrete structures under chloride induced corrosion |
| url | http://dx.doi.org/10.1155/2020/6715283 |
| work_keys_str_mv | AT thamaratofetilima efficiencyofdifferentelectrolytesonelectrochemicalchlorideextractiontorecoverconcretestructuresunderchlorideinducedcorrosion AT kiyongann efficiencyofdifferentelectrolytesonelectrochemicalchlorideextractiontorecoverconcretestructuresunderchlorideinducedcorrosion |