Relation of Permeability by High Hydraulic Method and Chloride Ion Diffusion Coefficient of Concrete
Permeation length, permeation coefficient of water permeated into concrete and chloride ion diffusion coefficient of C30, C45 and C60 concrete were studied by high hydraulic method (0.5MPa~25MPa) and quick method of testing chloride ion diffusion respectively, and relationship of concrete permeability tested by two methods was analyzed too. High hydraulic method can distinguish permeability of concrete with different strength or air content and it is a quick and effective method to fast test and evaluating permeability of concrete. The results showed that high hydraulic method is applicable for evaluating permeability of concrete, with advantages of short testing period, easy operating and simple pretreatment of concrete specimens. Permeation coefficient or permeation length of water permeated into concrete exhibited linear relationship with chloride ion diffusion coefficient of concrete. It is applicable for evaluating permeability of concrete using quick method of testing chloride ion diffusion.
Hao-Wen YE and Gai-Fei PENG
Y. Ge et al., "Relation of Permeability by High Hydraulic Method and Chloride Ion Diffusion Coefficient of Concrete", Key Engineering Materials, Vols. 405-406, pp. 303-308, 2009