補修・補強（材料） (2)

[V-217] Examination about the durable improvement of the interior painting of the expressway tunnel.

*Hotaka Okihara¹, Tetsuya Yamazaki², Kiyoto Nakano³ (1. Nippon Expressway Research Institute Company Limited., 2. Nippon Expressway Research Institute Company Limited., 3. Nippon Expressway Research Institute Company Limited.)

Keywords:TunneL, Interior finishing, Painting, Drop out, Fall, Durability