Title

Diffusion of Chloride Ions into Concrete in Salt Spray Environment

Abstract

A diffusion model of chloride ions in concrete with different materials mixtures was discussed by experiment and improved Fick's second law. The concrete samples were tested in a salt-fog box in which was controlled automatically, simulating the seashore salt-fog environments. The diffusion of chloride ions is different from the result calculated by the Fick's second law. Therefore, the Fick's second law was modified by introduced an environmental factor to make the calculated result conforming to the experimental data. The diffusion of chloride ions in reinforced concrete structure under real atmospheric environment was studied by drilling cylinder cores in some typical positions. The environmental factors in the practical concrete structures were ascertained according to the service environment of concrete structures. The application and significance of the environmental factor in real concrete structures were reviewed.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Chloride; Coastal Environments; Diffusion Model; Fick's Second Law; Salt Spray; Atmospheric Structure; Chlorine Compounds; Diffusion; Durability; Ions; Reinforced Concrete; Structural Health Monitoring; Environmental Regulations; Concrete

International Standard Serial Number (ISSN)

1000-2618

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

Chinese

Language 2

English

Rights

© 2010 Editorial Office of Journal of Shenzhen University, All rights reserved.

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