Utilization of Steel Slag Powder as a Combined Admixture with Ground Granulated Blast-Furnace Slag in Cement Based Materials
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 12
Abstract
The feasibility of steel slag powder as a combined admixture with ground granulated blast-furnace slag (GGBFS) in cement based materials was explored. The effects of steel slag powder on the normal consistency water requirement, setting times, compressive strength, and hydration products of cement paste/mortar were studied. The results showed that the preferred additional content of steel slag powder in a combined admixture was less than 20%. Steel slag powder decreased the normal consistency water requirement and retarded the setting time of cement paste. With curing ages increasing, the compressive strength of mortars with the combined admixture increased rapidly, even higher than that of the blank sample. Hydration products primarily included C-S-H gel, C-S-Al-H gel, and . Mixing these two powders of GGBFS and steel slag powder had a positive effect regarding the hydration of steel slag powder. Additionally, this research contributes to our understanding of how to sustainably manage industrial wastes and has the potential to provide several important environmental and economic benefits.
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Acknowledgments
The authors acknowledge and appreciate support received from the research fund for the National Natural Science Foundation of China (No. 20110072120046) and the doctoral program of higher education of China (No. 51172164 and No. 51208370), the Fundamental Research Funds for the Central Universities (No. 0500219170), and the Opening Measuring Fund of Large Apparatus of Tongji University (No. 0002012011).
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 12 • December 2013
Pages: 1990 - 1993
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Nov 22, 2012
Accepted: Dec 11, 2012
Published online: Dec 13, 2012
Discussion open until: May 13, 2013
Published in print: Dec 1, 2013
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