Study on Corrosion Resistant Performance of Sulfoaluminate Cement
In the salt lake areas in China,the ordinary cement concrete can be corroded by the salt in the saline soil seriously,and the application of ordinary portland cement concrete in this area is impeded.Therfore,some new cementitious materials which has high durability should be searched in order to be used in the underground engineering in saline soil areas.In this study,the sulfoaluminate cement is immersed into the salt solution that has high concentration Mg2+,Cl-,SO42-,and the complex solution of them.The corrosion resistance performance of sulfoaluminate cement against high concentration salt solution is tested.The results indicate that Sulfoaluminate cement has perfect durability against sulfate corrosion whose concentration is in the scope of this test.Sulfoaluminate cement can not be corroded by MgCl2 solution when MgCl2 solution concentration is lower than degree ③; but when the concentration of MgCi2 solution reaches degree ④,MgCl2 solution could corrode the sulfoaluminate cement seriously.The corrosion of the specimens immersed in MgCi2 solution whose concentration is degree ④ is caused by the composite action of Mg2+ and Cl-.
sulfoaluminate cement corrosion resistance saline soil durability
Hao Yu Jianmeng Li Huang Xin
Department of Civil Engineering, School of Transportation Science and Engineering, Beihang University, Beijing, 100191, China
国际会议
太原
英文
269-272
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）