ELECTROCHEMICAL CHLORIDE EXTRACTION TECHNOLOGY OF THE CONCRETE POLLUTED BY CHLORIDE IONS

Concrete polluted by chloride ions was investigated with electrochemical chloride extraction(ECE) technology.The concentration of chloride ions extracted from concrete was connected directly to the current density and initial chloride ion content in the desalination early age.Chloride ions distribution in concrete increased gradually from inner sample to peripheral sample after desalination and chloride ion content was less in the top and underside than in the middle of the concrete.