*Khounsida Thavone¹, Doyeon Kwak², Kensaku Ando³, Takafumi Kameda⁴, Tatsuhito Kondo⁵ (1. Public Works and Transport Institute (Laos), 2. SHO-BOND Corporation, 3. SHO-BOND Material Co. Ltd, 4. Oriental Consultants Global Co. Ltd, 5. Project for Capacity Development on Bridge Maintenance and Management (Laos))

*Vongxay Phouvisay¹, Pantha Bhoj Raj², Kiminari Takahashi³, Tatsuhito Kondo⁴ (1. Department of Roads, Ministry of Public Works and Transport, Lao PDR, 2. Katahira and Engineers International, 3. International Development Center of Japan, 4. Project for Capacity Development on Bridge Maintenance and Management (Lao-PDR))

*AZAM AMIR¹, Michael Henry² (1. Department of Regional Enviornmental System, Graduate School of Engineering and Science, Shibaura Institue of Technology, 2. Department of Civil Engineering, Graduate School of Engineering and Science, Shibaura Institue of Technology)

*Salim Teremo¹, Micheal Henry² (1. Graduate school of engineering and science, Shibaura Institute of Technology, 2. Department of civil engineering, Shibaura Institute of Technology)

*ELIAS Tita ELFRIDO¹, Watanabe Gakuho¹, Shao Peilun¹, Kenji Arii² (1. Yamaguchi University, 2. Chodai., Co.LTD)

*Hatthaphone Silimanotham¹, Michael Henry¹ (1. Shibaura Institute of Technology)

*SELORM DARTEY¹, Azam Amir², Michael Henry³ (1. Graduate school of Engineering and Sciences, Shibaura Institute of Technology , 2. Regional Environmental Systems, Shibaura Institute of Technology, 3. Department of Civil Engineering, Shibaura Institute of Technology)