QI Gui-hai,PENG Xiao-qin,YE Hao-wen,DONG Yi
(1.College of Material Science and Engineering, Chongqing Univ, Chongqing400045, China;2. Guizhou Construction Science Research and Design Institute Corp Ltd of CSCEC, Guiyang, Guizhou550006, China;3. China Construction Fourth Engineering Division Corp Ltd, Guangzhou, Guangdong510665, China)