Penetration Resistance to Chloride Ions of Silica Fume Concrete

Abstract:

The penetration resistance to chloride ions of concrete is one of the important factors affecting the durability of concrete structures. The penetration resistance to chloride ions of concrete is measured with the increasing substitution amount of silica fume in this paper. For the low water-binder ratio of 0.28, 0.30 and 0.32, compared with the reference concrete, with the increase of age, the penetration resistance to chloride ions of concrete can be enhanced with the increasing substitution amount of silica fume, but the increased range is smaller. The penetration resistance of chloride ions of concrete is not necessarily improved by gradually decreasing the water-binder ratio. Considering the substitution amount of silica fume, water-binder ratio and concrete age, the best mix proportions are that the substitution amount of silica fume is 9% or 12% when the water-binder ratio is 0.28 and the substitution amount of silica fume is 12% when the water-binder ratio is 0.30.

• Periodical: Applied Mechanics and Materials (Volumes 584-586)
• Pages: 1519-1522
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.584-586.1519
• Online since: July 2014
• Authors: Yun Feng Li*, Xiao Peng Fan, Lei Wen Gao, Ying Tao Li
• Keywords: Chloride Ions, Concrete, Penetration Resistance, Silica Fume (SF)

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