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http://dx.doi.org/10.14190/JRCR.2022.10.2.176

Heating Transferring Charcteristics of Cement Mortar Block with Waste CNT and Conduction Activator  

Koo, Hounchul (Hypercon Co. Ltd.)
Kim, Woon-Hak (Hankyong National University)
Oh, Hongseob (Department of Civil and Infrastructure Engineering, Gyeongsang National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.2, 2022 , pp. 176-183 More about this Journal
Abstract
High-purity waste CNTs were mixed into cement mortar to manufacture heat-generating concrete that can use low voltage power, and carbon fiber and waste cathode materials were also used improve the conductivity of the mortar. The waste CNTs were analyzed to have a high concentration of multi-walled CNTs, and substituted liquid type waste CNTs were used during mortar mixing in order to increase dispersibility. The temperature change of the mortar with CNT was evaluated when using electric power below DC 24 V in order to utilize a small self-generation facility such as small solar power module when the mortar heats up and to minimize electromagnetic waves. When liquid-type waste CNTs were applied and a voltage of DC 24 V was introduced, it rose to 60 ℃ in a 200 × 100 × 50 mm mortar block specimen. The field applicability of self heating mortar with waste CNT was sufficient and also the amount of change in heat energy in mortar with liquid type waste CNT, carbon fiber and waste cathode materials is more effective compared to it of other variables.
Keywords
Self-heating; Waste carbon nanotube; Waste cathode agent; Carbon fiber; Low voltage;
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Times Cited By KSCI : 2  (Citation Analysis)
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