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http://dx.doi.org/10.3740/MRSK.2013.23.12.687

Experiment Study on the Improvement of the Early-Age Strength of Fly Ash Concrete Using CSA  

Park, Ji-Sun (Department of Building Research, Korea Institute of Construction Technology)
Jeon, Chan-Soo (Department of Building Research, Korea Institute of Construction Technology)
Publication Information
Korean Journal of Materials Research / v.23, no.12, 2013 , pp. 687-694 More about this Journal
Abstract
This study was performed with an aim to improve the early-age strength of concrete containing fly ash, which is known to increase the long-age strength of concrete, reduce drying shrinkage, and enhance water tightness. The composition was partially substituted with calcium sulfoaluminate (CSA), from which ettringite is actively produced, in the early stages of hydration to verify its effect on improving the early-age strength and to determine the optimal mixing ratio. For this purpose, up to 30 % of the cement weight was substituted with fly ash, and the amount of CSA substitution was 8% of the fly ash weight. The mixtures were then fabricated into concrete specimens for compressive strength measurement and analysis of the correlation between the hydration products and the compressive strength.
Keywords
CSA; fly ash; early-age strength;
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  • Reference
1 Y. K. Cho, J. H. Kim, T. Y. Hyun, Concrete & Slag, Green Solution, p. 125-154, D. B. Si, Korea Iron and Steel Association, Seoul (2012).
2 W. K. Bang, Ph. D. Thesis (in Korea), p. 72-90, Yonsei University, Seoul (1998).
3 K. R. Hwang, Ph. D. Thesis (in Japan), p. 123-157, Tokyo University, Tokyo (1999).
4 Canada Centre for Mineral and Energy Technology, Canadian Electrical Association. Research and Development, High-volume flyash concrete using Canadian fly Ashes, p.78, V. Sivasundaram, Canadian Electrical Association. Research and Development, Ottawa (1994).
5 J. W. Moon, S. W. Ji and C. H. Seo, Kor. J. Arch., 17(5), 8 (2001).