Curable area substantiation of self-healing in concrete using neutral axis

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Abstract

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.

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APA

Kang, C., & Kim, T. (2019). Curable area substantiation of self-healing in concrete using neutral axis. Applied Sciences (Switzerland), 9(8). https://doi.org/10.3390/app9081537

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