1. School of Civil Engineering, University of South China, Hengyang 421200, China
2. Hunan Engineering Research Center of Development and Application of Ceramsite Concrete Technology, Hunan City University, Yingbin East Road, Yiyang 413000, China
3. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510000, China
4. School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China