1. State Key Laboratory of Concrete and Preload Concrete Structure of Ministry of Education, Civil Engineering School, Southeast Univ., Nanjing 210096, China.
2. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji Univ., Shanghai 200092, China (corresponding author).
3. Magnel Laboratory for Concrete Research, Ghent Univ., Ghent, Belgium.