Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis
The self-healing nature of concrete has been proved in many studies using various methods. However, the underlying mechanisms and the distinct area of self-healing have not been identified in detail. This study focuses on the limits of the area of self-healing. A bending specimen with a notch is use...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/8/1537 |
| _version_ | 1819108664095539200 |
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| author | Choonghyun Kang Taewan Kim |
| author_facet | Choonghyun Kang Taewan Kim |
| author_sort | Choonghyun Kang |
| collection | DOAJ |
| description | The self-healing nature of concrete has been proved in many studies using various methods. However, the underlying mechanisms and the distinct area of self-healing have not been identified in detail. This study focuses on the limits of the area of self-healing. A bending specimen with a notch is used herein, and its flexural strength and stiffness before and after healing are compared and used for self-healing assessment. In addition, the neutral axis of the specimen was measured using successive strain gauges attached to the crack propagation part. Although the strength and stiffness of the concrete recovered after self-healing, the change in the location of the neutral axis before and after healing was insignificant, which indicates that physical recovery did not occur for once-opened crack areas. |
| first_indexed | 2024-12-22T03:13:31Z |
| format | Article |
| id | doaj.art-66d6ff17f0dd49b7b4d2e813e44f1d72 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-22T03:13:31Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-66d6ff17f0dd49b7b4d2e813e44f1d722022-12-21T18:40:52ZengMDPI AGApplied Sciences2076-34172019-04-0198153710.3390/app9081537app9081537Curable Area Substantiation of Self-Healing in Concrete Using Neutral AxisChoonghyun Kang0Taewan Kim1Department of Civil and Environmental Engineering, Chonnam National University, Yeosu, Chonnam-do 59626, KoreaDepartment of Civil Engineering, Pusan National University, Busan 46241, KoreaThe self-healing nature of concrete has been proved in many studies using various methods. However, the underlying mechanisms and the distinct area of self-healing have not been identified in detail. This study focuses on the limits of the area of self-healing. A bending specimen with a notch is used herein, and its flexural strength and stiffness before and after healing are compared and used for self-healing assessment. In addition, the neutral axis of the specimen was measured using successive strain gauges attached to the crack propagation part. Although the strength and stiffness of the concrete recovered after self-healing, the change in the location of the neutral axis before and after healing was insignificant, which indicates that physical recovery did not occur for once-opened crack areas.https://www.mdpi.com/2076-3417/9/8/1537neutral axisself-healingsuccessive strain gaugeflexural test |
| spellingShingle | Choonghyun Kang Taewan Kim Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis Applied Sciences neutral axis self-healing successive strain gauge flexural test |
| title | Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis |
| title_full | Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis |
| title_fullStr | Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis |
| title_full_unstemmed | Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis |
| title_short | Curable Area Substantiation of Self-Healing in Concrete Using Neutral Axis |
| title_sort | curable area substantiation of self healing in concrete using neutral axis |
| topic | neutral axis self-healing successive strain gauge flexural test |
| url | https://www.mdpi.com/2076-3417/9/8/1537 |
| work_keys_str_mv | AT choonghyunkang curableareasubstantiationofselfhealinginconcreteusingneutralaxis AT taewankim curableareasubstantiationofselfhealinginconcreteusingneutralaxis |