철도 인프라 적용을 위한 탄소섬유 기반 발열 콘크리트의 열적 거동 분석

초록

Intense snowfall and icing resulting from climate change provide a significant risk to railway operations, while traditional de-icing techniques employing calcium chloride lead to structural deterioration and environmental issues. This study assessed the feasibility of a high-performance heating concrete technique that incorporates carbon fibers as a heating element combined with functional elements. Following the selection of carbon fibers exhibiting optimal thermal performance, they were incorporated into plain, PS ball, and PCM concrete, respectively. Their thermal behaviors were then examined in comparison with the use of electric power. The experimental findings indicated that PS ball concrete using steel slag was beneficial for expedited snow melting owing to its enhanced heat diffusion rate and broader heating area. Conversely, PCM concrete exhibited superior thermal storage capabilities, maintaining a stable temperature after a power interruption, hence indicating potential for optimizing energy efficiency. This study concluded that the performance of heating concrete can be regulated for distinct goals (fast heating versus long-term thermal storage) by the utilization of functional components (PS balls, PCM). This indicates the possibility of creating an environmentally sustainable, tailored snow-melting system to substitute calcium chloride, thus improving the safety and longevity of railway infrastructure.

키워드