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http://dx.doi.org/10.14190/JRCR.2020.8.1.134

Evaluation Method of Self-healing Performance of Cement Composites  

Lee, Kwang-Myong (Department of Civil, Architectural and Environmental System Engineering, Sungkyunkwan University)
Kim, Hyung-Suk (Department of Civil, Architectural and Environmental System Engineering, Sungkyunkwan University)
Min, Kyung-Sung (Department of Civil, Architectural and Environmental System Engineering, Sungkyunkwan University)
Choi, Sung (Self-healing Green Concrete Research Center, Sungkyunkwan University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.1, 2020 , pp. 134-142 More about this Journal
Abstract
In this study, in order to evaluate the self-healing performance of cement composites the self-healing test method and the analysis method were suggested by applying constant water head permeability test, chloride migration test and repeated bending test. The method of making a cracked specimen and controlling crack width are also proposed. Constant head water permeability test can evaluate the healing performance by using the decreasing rate of water flow passing through the crack zone of a specimen. Furthermore, the equivalent crack width can be used to intuitively investigate the healing effect with healing period. The chloride migration test can evaluate the healing rate by the decreasing rate of the diffusion coefficient obtained by ASTM C 1202. Mechanical healing performance can be evaluated using ISR and IDR estimated from load vs. CMOD relationship graph obtained through the repeated bending test. Finally, the applicability of proposed self-healing evaluation methods was examined by testing mortar specimens with or without self-healing agents.
Keywords
Self-healing agent; Evaluation method of self-healing performance; Constant head water permeability test; Chloride migration test; Repeated bending test;
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1 ASTM. (2010). Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetraion, ASTM C 1202-10, ASTM international.
2 Choi, S.W., Bae, W.H., Lee, K.M., Shin, K.J. (2017). Correlation between crack width and water flow of cracked mortar specimens measured by constant water head permeability test, Journal of the Korea Concrete Institute, 29(3), 267-273 [in Korean].   DOI
3 Fahad, U.R.A., Abdul, S.B., Lee, K.M., Jang, S.Y. (2019). Using the steady-state chloride migration test to evaluate the self-healing capacity of cracked mortars containing crystalline, expansive, and swelling admixture, Materials, 12(11), 1-21.
4 Ferrara, L., Van Mullem, T., Alonso, M.C., Antonaci, P., Borg, R.P., Cuenca, E., ..., Sanchez, M. (2018). Experimental characterization of the self-healing capacity of cement-based materials and its effects on the material performance: A state of the art report by COST Action SARCOS WG2, Construction and Building Materials, 167, 115-142.   DOI
5 Ferrara, L., Krelani, V., Carsana, M. (2014). A "fracture testing" based approach to assess crack healing of concrete with and without crystalline admixtures, Construction and Building Materials, 68, 535-551.   DOI
6 Jang, S.Y., Kim, B.S., Oh, B.H. (2011). Effect of crack width on chloride diffusion coefficients of concrete by steady-state migration tests, Cement and Concrete Research, 41, 9-19.   DOI
7 Karaiskos, G., Tsangouri, E., Aggelis, D.G., Van Tittelboom, K., De Belie, N., Van Hemelrijck, D. (2016). Performance monitoring of large-scale autonomously healed concrete beams under four-point bending through multiple non-destructive testing methods, Smart Materials and Structures, 25(5), 1-16.
8 Lee, K.M., Park, B.S. (2019). State of the art of self-healing concrete, Magazine of the Korea Concrete Institute, 31(2), 10-14 [in Korean].
9 Shin, K.J., Bae, W.H., Choi, S.W., Son, M.W., Lee, K.M. (2017). Parameters influencing water permeability coefficient of cracked concrete specimens, Construction and Building Materials, 151, 907-915.   DOI
10 Schlangen, E., Sangadji, S. (2013). Addressing Infrastructure Durability and Sustainability by Self Healing Mechanisms-Recent Advances in Self Healing Concrete and Asphalt, Procedia Engineering, 54, 39-57.   DOI
11 Andrade, C. (1993). Calculation of chloride diffusion coefficients in concrete from ionic migration measurements, Cement and Concrete Research, 23(3), 724-742.   DOI
12 Wang, K., Jansen, D.C., Shah, S.P. (1997). Permeability study of cracked concrete, Cement and Concrete Research, 27(3), 381-393.   DOI
13 Yang, Z., Hollar, J., He, X., Shi, X (2011). A self-healing cementitious composite using oilcore/silica gel shell microcapsules, Cement and Concrete Composites, 33(4), 506-512.   DOI
14 Abdul, S.B., Fahad, U.R.A., Lee, K.M., Jang, S.Y. (2019). Mechanical recovery of cracked fiber-reinforced mortar incorporating crystalline admixture, expansive agent, and geomaterial, Hindawi, 2019, 1-14.