Research Progress of Chloride Ion Transport in Concrete under Marine Salt Spray Environment

Abstract

Abstract: Chloride ion transport is the critical factor affecting the service life of reinforced concrete under marine environment. The chloride ion under marine atmospheric environment causes severely reinforcement corrosion, leading to the reduction of load-bearing capacity and degradation of durability for concrete structures, and posing a severely threat to service life of reinforced concrete structures under marine environment. However, the transport mechanism of chloride ion in concrete under salt spray environment is extremely complex, showing a multi-factor characteristic. Therefore, the more precise salt spray test is need to study, and the targeted model should be established to characterize the transport behavior of chloride ion in concrete. In this paper, the research progress of chloride ion transport in concrete under salt spray environment was systematically reviewed. The test methods of chloride ion erosion in concrete under salt spray environment were summarized,and the influence factors of chloride ion transport were disscussed. The chloride ion transport models were concluded. The paper can provide references for engineering practice and scientific research of reinforced concrete structure under marine atmospheric environment.

Key words: salt spray environment, concrete, chloride ion transport, testing method, influence factor, transport model

CLC Number:

TU528

XIU Jiande, JIN Zuquan, LI Ning, HOU Baorong. Research Progress of Chloride Ion Transport in Concrete under Marine Salt Spray Environment[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(3): 771-785.

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