Experimental Study on the Chloride Diffusivity of Recycled Aggregate Concrete

Abstract:

The study presented herein has been carried out in order to investigate the chloride diffusivity of recycled aggregate concrete (RAC). Meanwhile, the effect of the binder type, involving cement replacement materials such as, fly ash, slag and silica fume on the chloride diffusivity has also been investigated. For this purpose, RAC and concrete containing the different type of binders with w/b ratios of 0.35, 0.40, 0.45, 0.50, 0.55, and 0.60 were used. As a result, the chloride diffusion coefficient of RAC is higher than that of natural concrete and the partial replacement of cement with fly ash, slag and silica fume is effective in decrease in the chloride diffusion coefficient, measured by a rapid chloride conductivity test.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 1404-1408
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.1404
• Online since: December 2010
• Authors: He Ying Qin, Yan Lin Zhao, Bo Guang Luo, Yi Hu Chen
• Keywords: Chloride Conductivity Test, Chloride Diffusivity, Concrete, Recycled Aggregate (RA)

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