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http://dx.doi.org/10.14190/JRCR.2022.10.4.561

Self-healing Performance Evaluation of Cement Mortar with Inorganic Additives Based on Clinker Binder  

Jung-Il, Suh (Construction Technology Center, Korea Conformity Laboratories)
Yoon-Suk, Choi (Construction Technology Center, Korea Conformity Laboratories)
Byung-Sun, Park (Department of Environmental Systems Engineering, Korea University)
Kwang-Myong, Lee (Departement of Civil, Architectural and Environmental System Engineering, Sungkyunkwan University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.4, 2022 , pp. 561-568 More about this Journal
Abstract
In this study, the mechanical properties and self-healing performance of cement mortar containing clinker binder, calcium sulfoaluminate(CSA), and sodium sulfate(Na2SO4) were evaluated. The mechanical properties of cement mortar were investigated by measuring compressive strength and flexural strength, and the healing performance was evaluated through hydrostatic water permeability test and gas diffusion test. In addition, the healing products precipitated in the cracks were visually observed through an optical microscope and a scanning electron microscope(SEM). As a result, the incorporation of the clinker binder-based inorganic additives improved the initial and 28-day strength by about 20 %. Depending on the healing performance evaluation method, there was a difference in the healing rate, and the healing rate showed a tendency to be underestimated. Nevertheless, CaCO3 was precipitated as the main healing product inside the 0.3 mm crack when the inorganic additives were mixed with cement mortar, improving the self-healing performance.
Keywords
Clinker binder; Self-healing; Hydrostatic water permeability test; Gas diffusion test;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Van Mullem, T., Gruyaert, E., Caspeele, R., De Belie, N. (2020). First large scale application with self-healing concrete in Belgium: analysis of the laboratory control tests, Materials, 13(4), 997.
2 Van Mullem, T., Gruyaert, E., Debbaut, B., Caspeele, R., De Belie, N. (2019). Novel active crack width control technique to reduce the variation on water permeability results for self-healing concrete, Construction and Building Materials, 203, 541-551.   DOI
3 Van Tittelboom, K., De Belie, N. (2013). Self-healing in cementitious materials-a Review, Materials, 6(6), 2182-2217.   DOI
4 Wang, R., Ren, M., Gao, X., Qin, L. (2018). Preparation and properties of fatty acids based thermal energy storage aggregate concrete, Construction and Building Materials, 165. 1-10.   DOI
5 Yoo, K.S., Jang, S.Y., Lee, K.M. (2021). Recovery of chloride penetration resistance of cement-based composites due to self-healing of cracks, Materials, 14(10), 2501.
6 De Belie, N., Gruyaert, E., Al-Tabbaa, A., Antonaci, P., Baera, C., Bajare, D., Darquennes, A., Davies, R., Ferrara, L., Jefferson, T., Litina, C., Miljevic, B., Otlewska, A., Ranogajec, J., Roig-Flores, M., Paine, K., Lukowski, P., Serna, P., Tulliani, J.M., Vucetic, S., Wang, J., Jonker, H.M. (2018). A review of self-healing concrete for damage management of structures, Advanced Materials Interfaces, 5(17), 1800074.
7 Edvardsen, C. (1999). Water permeability and autogenous healing of cracks in concrete, ACI Materials Journal, 96(4), 448-454.
8 Eom, K.Y., Lee, S.W. (2021). A study on the policy direction of public-private partnership for the improvement of aged infrastructure, Research Report, Construction & Economy Research Institute of Korea, Korea [in Korean].
9 He, Y., Zhang, X., Zhang, Y., Song, Q., Liao, X. (2016). Utilization of lauric acid-myristic acid/expanded graphite phase change materials to improve thermal properties of cement mortar, Energy and Buildings, 133, 547-558.   DOI
10 Korea Concrete Institute (2021). Constant water head permeability test method for the evaluation of self-healing performance of mortar, KCI-CT114, Korea [in Korean].
11 Lee, D.K., Shin, K.J. (2020). Performance evaluation method of self-healing concrete using gas diffusion experiment, Journal of the Korean Recycled Construction Resources, 8(1), 143-151 [in Korean].
12 Lee, D.K., Shin, K.J. (2021). Development of oxygen diffusion test method for crack width evaluation of self-healing concrete, Journal of the Korean Recycled Construction Resources, 9(3), 375-382 [in Korean].
13 Lee, W.J., Kim, H.S., Choi, S., Park, B.S., Lee, K.M. (2021). Evaluation method of healing performance of self-healing materials based on equivalent crack width, Journal of the Korean Recycled Construction Resources, 9(3), 383-388 [in Korean].
14 Mehta, P.K., Monteiro, P.J.M. (2014). Concrete: Microstructure, Properties, and Materials, McGraw-Hill Education, United States.
15 Park, B., Choi, Y. (2021). Self-healing products of cement pastes with supplementary cementitious materials, calcium sulfoaluminate and crystalline admixtures, Materials, 14(23), 7021.
16 Shin, J.W., Her, S.W., Bae, S.C. (2020). Investigation on the self-healing performance of cement mortar incoporating inorganic expansive additives, Journal of the Korean Recycled Construction Resources, 8(4), 404-412 [in Korean].
17 Sisomphon, K., Copuroglu, O., Koenders, E.A.B. (2012). Self-healing of surface cracks in mortars with expansive additive and crystalline additive, Cement and Concrete Composites, 34, 566-574.   DOI