Abstract：Functionally Gradient Concrete Segment(abbr.FGCS) adopting functional and structural integrated design is of some excellent performances,such as mechanical property,anti-cracking,impermeability and fire resistance,especially,the ability to resist chloride ion penetration.Chloride diffusion coefficient of FGCS produced was only 4.9×10-13 m2·s-1.According to the multi-component diffusion equation,a service life for FGCS was predicted to be 280 years.Based on the performances mentioned above,mechanical property,anti-cracking,impermeability and fire resistance of FGCS were obviously improved in comparison with ordinary reinforced concrete segment.
王信刚； 王睿； 宋固全. 跨江海隧道功能梯度混凝土管片性能与寿命预测[J]. 南昌大学学报（理科版）, 2012, 36(02): 192-196.
WANG Xin-ganga,WANG Ruib,SONG Gu-quana. Performance and service life prediction of functionally gradient concrete segment used in river-crossing or sea-crossing tunnels. , 2012, 36(02): 192-196.
2012, Vol. 36 
