1. Ph.D. Candidate, School of Civil Engineering, Central South Univ., Railway Campus, No. 68, South Shaoshan Rd., Tianxin District, Changsha City, Hu’nan Province 410018, China.
2. Professor, School of Civil Engineering, Central South Univ., Railway Campus, No. 68, South Shaoshan Rd., Tianxin District, Changsha City, Hu’nan Province 410018, China (corresponding author).
3. Assistant Professor, School of Materials Science and Engineering, Hunan Institute of Technology, No. 18, Henghua Rd., Zhuhui District, Hengyang City, Hu’nan Province 421002, China.