1. Postdoctoral Fellow, Dept. of Material Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan (corresponding author).
2. Associate Professor, Dept. of Material Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan.
3. Professor, Division of Environment and Resources Engineering, Hokkaido Univ., Sapporo 060-8628, Japan.
4. Assistant Professor, Civil Engineering Program, SIIT, Thammasat Univ., Pathumthani 12121, Thailand.
5. Professor, Dept. of Material Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan.