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Key Technology for Improving Resistance Against Chloride Ion Penetration of Marine Concrete

HU Hong-mei,SONG Ming-hui,YAO Zhi-xiong,CHEN Xiao-hong (Department of Civil Engineering,Xiamen University,Xiamen 361005,Fujian,China)  
In order to improve resistance against chloride ion penetration of marine concrete,the key technology for improving resistance against chloride ion penetration of marine concrete was discussed from the choice of raw materials and the mixture proportion design,and the engineering example of Xiamen Xinglin Bay Jiutianhu Bridge of Fujian Province was analyzed.The results show that confecting Ⅱ fly ash,slag powder and concrete strengthening agent on resistance against chloride ion penetration in a certain proportion and optimizing the mixture proportion design of concrete,can effectively improve the resistance against chloride ion penetration of marine concrete.
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