Conductive Gel Flexible Sensor and its Application in Concrete Health Monitoring - Sun, Xun; Chen, Yang; Fan, Size; Cheng, Yuxuan; Yang, Tao; Zhang, Changhuan; Zhang, Liran; Wu, Han (2025 5th International Conference on Sensors and Information Technology, Sensors and Information Technology (ICSI), 2025 5th International Conference on, 2025)