Influence of Fly Ash to Concrete Protecting Steel Corrosion Ability

Qiao Yang; Xiao E Zhu

doi:10.4028/www.scientific.net/AMM.744-746.169

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 744-746Influence of Fly Ash to Concrete Protecting Steel...

Influence of Fly Ash to Concrete Protecting Steel Corrosion Ability

Abstract:

The compressive strengths of the concrete cubes added fly ash were increased 53.2%, the density was almost unchanged, but the water absorption was decreased 30%. The concrete permeability coefficient and chloride diffusion coefficient added fly ash were lower than the common concrete at all ages. The concrete specimens corrosion potential added fly ash were higher than-300mV, while common concrete almost were lower than-500mV. Corrosion probability was small and there was no crack and corrosion pot on the surface of the specimens until 82 times cycles in wet-dry chlorides solution. Fly ash in concrete has obvious act for improving concrete behavior in protecting the embedded steel in corrosion.

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Periodical:

Applied Mechanics and Materials (Volumes 744-746)

Pages:

169-172

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.744-746.169

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Online since:

March 2015

Authors:

Qiao Yang, Xiao E Zhu*

Keywords:

Concrete, Fly Ash, Half-Cell Potential, Steel Corrosion

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* - Corresponding Author

References

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