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《The Ocean Engineering》 2011-04
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A new test method to simulate chloride penetration into concrete in tidal zone

XU Chen,JIN Wei-liang,LI Zhi-yuan,ZHANG Yi,YAO Chang-jian(Institute of Structural Engineering,Zhejiang University,Hangzhou 310058,China)  
Presently,simulated experiments of tidal zone in natural marine environment are mostly achieved by wetting-drying tests.Although these tests can reflect the mechanism of chloride penetration in the tidal zone,it is very difficult to fix the parameter of the ratio of wetting-drying time.So at the present stage,wetting-drying tests is only used to accelerate the rate of chloride penetrating through the concrete in order to evaluate performance of different concrete.In this paper,this problem is solved by a new designed method to simulate tidal action in natural marine environment.Finally,an indoor accelerating simulated experiment is designed according to a practical dock project.A concrete design proposal will be given.Correlation between indoor and field tests is discussed from the point of wetting-drying time.Test result shows that this new experimental method can simulate actual tidal action on the concrete structure effectively.
【Fund】: 国家自然科学基金重大国际合作资助项目(50920105806);; 国家科技支撑资助项目(2006BAJ03A04 2006BAJ03A02)
【CateGory Index】: U657
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