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[V-242] A study on salt damage prediction using apparent diffusion coefficient of the box type tunnel for subway

*Sadayuki Watanabe¹, Yoshio Sekiguchi¹, Yuji Morohashi², Junpei Saitou³ (1. Metro Rail Facilities Co.,Ltd., 2. Tokyo Metro Co.,Ltd., 3. Nihon University)

Keywords:subway box tunnel, chloride ion concentration, apparent diffusion coefficient, prediction of deterioration due to salt damage