Effect of W/B to the Time Dependent Chloride Diffusion in Concrete with GGBS

Lu Guang Song; Wei Sun; Jian Ming Gao

doi:10.4028/www.scientific.net/AMM.174-177.144

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 174-177Effect of W/B to the Time Dependent Chloride...

Effect of W/B to the Time Dependent Chloride Diffusion in Concrete with GGBS

Abstract:

This paper studied the influence of water to binder ratio to time dependent diffusion coefficients in concrete exposed to marine environments. And a refined diffusion model which considered the time dependent apparent diffusion coefficients and time dependent surface chloride concentration was established. It was found that both apparent diffusion coefficients and surface chloride concentration are time dependent and both are significantly influenced by water to binder ratio. Apparent diffusion decrease with time while surface chloride concentration increase with time. but water to binder ratio has similar influence to the constant of time dependent diffusion coefficients and the parameter of time dependent surface chloride concentration.

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Periodical:

Applied Mechanics and Materials (Volumes 174-177)

Pages:

144-147

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.174-177.144

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Online since:

May 2012

Authors:

Lu Guang Song, Wei Sun, Jian Ming Gao

Keywords:

Apparent Diffusion Coefficients, Chloride Transport, Surface Chloride Concentration, Time Dependency, Water to Binder Ratio

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References

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