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Title |
Study on the Engineering Properties of Cement Composites Using Carbon Nanotubes and Amorphous Metallic Fiber
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Authors |
이재인(Jae-In Lee) ; 김채영(Chae-Young Kim) ; 윤주호(Joo-Ho Yoon) ; 최세진(Se-Jin Choi) |
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DOI |
https://doi.org/10.4334/JKCI.2024.36.1.073 |
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Keywords |
모르타르; 탄소나노튜브; 비정질금속섬유; 열적 특성; 압축강도 mortar; carbon nanotube; amorphous metallic fiber; heating characteristics; compressive strength |
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Abstract |
In this study, multi-walled carbon nanotubes (MWCNTs) and amorphous metallic fibers were combined to address the issue of quality deterioration in concrete structures caused by cracks and to improve the heating characteristics of cement composites with low electrical conductivity. For this purpose, the fluidity, micro-hydration heat, heating performance, compressive strength, split-tensile strength, flexural strength, ultrasonic pulse velocity, carbonation depth, and microstructure of mortar were compared and analyzed based on different mixing ratios of MWCNTs and amorphous metallic fibers. According to the measurement results, the sample containing 0.2 % MWCNTs and amorphous metallic fibers showed improved heat generation performance, mechanical properties, and durability compared to the control sample. On the other hand, the sample with an MWCNT mixing ratio of 0.4 % showed lower performance than the control sample across various parameters except for heating performance. However, when used with amorphous metallic fibers, there was similar or improved performance compared to the control sample.
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