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This study investigated the chloride penetration of surface-treated concrete in natural and accelerated environments. A part of a real concrete port, including the beams and the columns, was investigated. Concrete specimens cast together with the concrete port were transported to the lab and subjected to wetting and drying cycles for accelerating the ingression of chloride ion. Chloride concentration of the specimens in the lab and the components in situ was tested. The results show that the surface treatments obviously slow down the chloride penetration into the concrete in both lab and in situ. The chloride penetration in situ is more severe than that in specimens under wetting and drying cycles. For the components of the real concrete port, the chloride concentration tested in summer is found higher than that in winter and the chloride concentration in the tensile region of bending beam is higher than that in the column.

Chloride Penetration in Surface-Treated Concrete in Natural and Accelerated Environments