Resistivity Method Evaluation of Corroded OPS-Concrete Ahmad Zaki, Hesti Rahayu, Ditya A. Nugraha, Sri Atmaja P. Rosyidi, Ni Nyoman Kencanawati and Syarizal Fonna E3S Web Conf., 476 (2024) 01037 Published online: 17 January 2024 DOI: 10.1051/e3sconf/202447601037