Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials
The number of aged bridges among concrete structures is increasing. Therefore, to increase their lifespans, repair and reinforcement schemes ought to be implemented. This study selected various repair materials according to crack-surface treatment, crack-filling, and crack-injection methods. These r...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/9/3267 |
| _version_ | 1797504015772155904 |
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| author | Tae-Kyun Kim Jong-Sup Park |
| author_facet | Tae-Kyun Kim Jong-Sup Park |
| author_sort | Tae-Kyun Kim |
| collection | DOAJ |
| description | The number of aged bridges among concrete structures is increasing. Therefore, to increase their lifespans, repair and reinforcement schemes ought to be implemented. This study selected various repair materials according to crack-surface treatment, crack-filling, and crack-injection methods. These repair materials were evaluated using various test methods proposed by the Korean Standards and the American Society for Testing and Materials for structure protection, structure restoration, and crack repair; the results were analyzed and compared. Consequently, the structure restoration material exhibited a similar freezing–thawing trend as that of chloride, while also exhibiting similar flexural, compressive, bond, and splitting-tensile strengths. However, chloride yielded performance differences (up to two-fold) depending on the type of material used for comparison. The crack-repair material yielded similar trends only for bond strength but yielded differences (up to 2–4-fold) in tensile, compressive, and flexural strengths depending on the material used for comparison. These results confirmed that crack-repair materials exhibit significant differences in performance depending on the manufacturer compared with structure protection and structure restoration materials. Therefore, it is expected that repair materials appropriate for usability, durability, and structure safety, while also being environmentally friendly, could be used in future bridge repairs based on these test evaluations. |
| first_indexed | 2024-03-10T03:58:36Z |
| format | Article |
| id | doaj.art-821f3770133841a1affa9269e563715a |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:58:36Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-821f3770133841a1affa9269e563715a2023-11-23T08:40:44ZengMDPI AGMaterials1996-19442022-05-01159326710.3390/ma15093267Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair MaterialsTae-Kyun Kim0Jong-Sup Park1Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology, 283, Goyang-daero, Ilsanseo-gu, Goyang-si 10223, KoreaDepartment of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology, 283, Goyang-daero, Ilsanseo-gu, Goyang-si 10223, KoreaThe number of aged bridges among concrete structures is increasing. Therefore, to increase their lifespans, repair and reinforcement schemes ought to be implemented. This study selected various repair materials according to crack-surface treatment, crack-filling, and crack-injection methods. These repair materials were evaluated using various test methods proposed by the Korean Standards and the American Society for Testing and Materials for structure protection, structure restoration, and crack repair; the results were analyzed and compared. Consequently, the structure restoration material exhibited a similar freezing–thawing trend as that of chloride, while also exhibiting similar flexural, compressive, bond, and splitting-tensile strengths. However, chloride yielded performance differences (up to two-fold) depending on the type of material used for comparison. The crack-repair material yielded similar trends only for bond strength but yielded differences (up to 2–4-fold) in tensile, compressive, and flexural strengths depending on the material used for comparison. These results confirmed that crack-repair materials exhibit significant differences in performance depending on the manufacturer compared with structure protection and structure restoration materials. Therefore, it is expected that repair materials appropriate for usability, durability, and structure safety, while also being environmentally friendly, could be used in future bridge repairs based on these test evaluations.https://www.mdpi.com/1996-1944/15/9/3267concrete repaircrack-surface treatment methodcrack-filling methodcrack-injection methodstructure protection materialstructure restoration material |
| spellingShingle | Tae-Kyun Kim Jong-Sup Park Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials Materials concrete repair crack-surface treatment method crack-filling method crack-injection method structure protection material structure restoration material |
| title | Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials |
| title_full | Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials |
| title_fullStr | Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials |
| title_full_unstemmed | Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials |
| title_short | Comparative Analysis of Domestic and International Test Guidelines for Various Concrete Repair Materials |
| title_sort | comparative analysis of domestic and international test guidelines for various concrete repair materials |
| topic | concrete repair crack-surface treatment method crack-filling method crack-injection method structure protection material structure restoration material |
| url | https://www.mdpi.com/1996-1944/15/9/3267 |
| work_keys_str_mv | AT taekyunkim comparativeanalysisofdomesticandinternationaltestguidelinesforvariousconcreterepairmaterials AT jongsuppark comparativeanalysisofdomesticandinternationaltestguidelinesforvariousconcreterepairmaterials |