The Effect of Superplasticizer on Strength and Chloride Permeability of Concrete Containing GGBFS

Abstract:

The effect of superplasticizer on the mechanical property and chloride permeability of concrete containing GGBFS is investigated in this paper. Compressive and rapid chloride-ion diffusion tests were conducted to determine the axial compressive and chloride-ion diffusion coefficients of GGBFS modified concrete. The tests result indicated that the compressive strength of GGBFS modified concrete with the addition of 2wt. % superplasticizer are further improved at 14 and 28 days. Superplasticizer can significantly enhance the resistance to chloride ion penetration of concrete containing GGBFS with a reasonable additive content at long-term age. The optimum content of superplasticizer is suggested to be 1wt. % to 2wt. % of the cementitous materials.

• Periodical: Advanced Materials Research (Volume 804)
• Pages: 12-16
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.804.12
• Online since: September 2013
• Authors: Shi Yi Zhang, Ying Fang Fan, Ning Ning Li
• Keywords: Chloride-Ion Diffusion Coefficient, Compressive Strength, Concrete, GGBFS, Superplasticizer

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