Effects of High Volumes of Fly Ash, Blast Furnace Slag, and Bottom Ash on Flow Characteristics, Density, and Compressive Strength of High-Strength Mortar
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 5
Abstract
This paper presents results of an experimental work carried out to evaluate utilization of recycled materials, such as fly ash and bottom ash (by-products of thermoelectric power plants), and blast furnace slag (by-products of ironworks) as binders and aggregates with high volume in high-strength, lightweight mortar. The effects of high volumes of fly ash, blast furnace slag, and bottom ash on flow characteristics, density, and compressive strength of mortar were investigated. In addition, the water capillary absorption characteristics of mortar regarding moisture transport that may affect the durability of the mortar were studied. It was found that the flow characteristics of fresh mortar were neither changed nor decreased with the increase in the replacement ratio of bottom ash, while these were improved by the use of high volumes of fly ash and blast furnace slag as replacements of cement.
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Acknowledgments
This research was sponsored by a grant from System Integration for Hybrid Cable Stayed Bridge Program, Korea Institute of construction technology (KICT), and the National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST 2012008855). The authors would like to thank to Mr. C.K. Lee, B.J. Yang, and Sam Na at KAIST for helping the experiment.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 5 • May 2013
Pages: 662 - 665
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Apr 26, 2011
Accepted: Jun 18, 2012
Published online: Aug 29, 2012
Published in print: May 1, 2013
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