Influence of Curing Age and Water-Binder Ratio on Chloride Permeability under Freeze-Thaw and Load

Abstract:

The chloride diffusion coefficients of different water-binder ratio high performance concrete (HPC) subjected to different one-way loads，freeze-thaw cycles and different standard curing ages were measured by electro-migration (RCM) tests and the results were analyzed. The test results indicate that with the increase of one-way load, its influence on the chloride permeability of different water-binder ratio HPC rises in the same proportion. The influence of the curing age on the chloride permeability of HPC will decrease with the reduction of the water-binder ratio of HPC. Under the same freeze-thaw cycle conditions, the relationships between chloride diffusion coefficients of different water-binder ratio HPC and curing ages are nearly suitable to power function.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 2610-2615
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.2610
• Online since: September 2013
• Authors: Lei Hong*, Run Min Duo
• Keywords: Chloride Diffusion Coefficient, Concrete, Freeze-Thaw Cycle, One-Way Load, Water-Binder Ratio

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