Abstract
In the present study, the effects of electrodes type (copper, steel or CFRP) and design (plate or mesh) on electrical stability of conductive cement as exposed to various weathering conditions were investigated. To fabricate these composites, multi-walled carbon nanotube and carbon fiber were added to the cement composites by 0.6 and 0.4% by cement mass. Seven different types of electrodes were embedded to the samples, and their electrical stability was examined during the curing period. In addition, the fabricated samples were exposed to water ingress and cyclic heating conditions. Then, the compressive strength of the samples was evaluated to observe the interfacial bonding between the cement paste and electrodes. Based on the experimental results, it was found that the samples showed different electrical stability even their mix proportion was same. Thus, it can be concluded that the type and design of the electrodes are important in measuring the electrical properties of the conductive cement composites. Specifically, an improved electrical stability of electrodes is required when they are exposed to various weathering conditions.
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Acknowledgements
This research was supported by Chungbuk National University KNUDP program (2022).
Funding
National Research Foundation of Korea, 2020R1C1C1005063, Beomjoo Yang, 2022R1A4A3029737, Beomjoo Yang, KFUPM, Civil, Hammad R. Khalid, Environmental Engineering Department, Hammad R. Khalid.
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Jang, D., Yang, B. & Cho, G. Effects of electrodes type and design on electrical stability of conductive cement as exposed to various weathering conditions. Carbon Lett. 34, 1015–1020 (2024). https://doi.org/10.1007/s42823-023-00644-7
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DOI: https://doi.org/10.1007/s42823-023-00644-7