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《Concrete》 2000-12
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Study on the AC Impedance of Impermeability and Chlorion Diffusivity of fly ash Concrete

He Hong zhu 1,2 , Chen Zhi yuan 1, Shi Mei lun 1, Liu Guo fei 1 (1 State Key Laboratory of Concrete Materials Research,Tongji University,Sanghai,200092,China; 2 Shanghai Research Institute of Building Science,Shanghai,200032) 〔  
In this paper,impermeability and chlorion diffusion of concrete are measured by way of AC impedance spectroscopy.Based on the contrast between fly ash concrete and standard concrete,it is found that the hydroxide ion diffusion coefficient and the chlorion diffusion coeffcient of fly ash concrete are smaller than that of standard concrete.On the condition of long time seawater corrosion,the hydroxide ion diffusion coefficient and the chlorion diffusion coefficient of fly ash concrete are far smaller than that of standard concrete. 〔
【CateGory Index】: TU52
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