| Title |
An Experimental Study on the Self-Heating and Material Properties of Electrically Conductive Concrete Sidewalk Blocks
|
| Authors |
서동주(Seo, Dong Ju);박종건(Park, Jong Gun);최범균(Choi, Beom Gyun);허광희(Heo, Gwang Hee) |
| DOI |
https://doi.org/10.12652/Ksce.2026.46.1.0045 |
| Keywords |
전기전도성 콘크리트; 보도블록; IoT 센서; 휨강도; 보행자 안전 Electrically conductive concrete; Sidewalk blocks; IoT sensor; Flexural strength; Pedestrian safety |
| Abstract |
To solve pedestrian safety problems caused by icing on sidewalks in winter, this study conducted an experimental study by applying a self-heating monitoring system that combines electrically conductive concrete sidewalk blocks with an electrical heating function and an Internet of Things (IoT) sensor. The developed electrically conductive concrete sidewalk blocks were reviewed through flexure strength and water absorption rate tests in accordance with KS F 4419 standards, and all of them were found to satisfy the criteria. In addition, the system measured the internal and surface temperatures of electrically conductive concrete sidewalk blocks by utilizing IoT sensors, and monitored the ambient temperature and humidity inside the freezer in real time. The test results confirmed that the IoT sensor-based monitoring system significantly increased the interior and surface temperatures of the concrete sidewalk block in a
low-temperature environment (-20oC), and that self-heating was stably detected and transmitted. In particular, the ‘CNT0.6+CF1.0’ concrete sidewalk block exhibited the best self-heating performance, with internal and surface temperatures measured at 97.2oC and 65.6oC, respectively, when a voltage of 30 V was applied. These results show that the electrically conductive concrete sidewalk block and IoT-based monitoring system proposed in this study can be used as an effective self-heating and sensing technology to prevent freezing of sidewalks in winter. |