1. Jiangsu Key Laboratory of Construction Materials, School of Material Science and Engineering, Southeast Univ., Nanjing 211189, China (corresponding author).
2. Master Student, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana-Champaign, Urbana, IL 61801.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana-Champaign, Urbana, IL 61801.
4. Professor, Jiangsu Key Laboratory of Construction Materials, School of Material Science and Engineering, Southeast Univ., Nanjing 211189, China.