Performance Study of Ecological Self-Consolidating Cement Mixtures
Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 12
Abstract
This study presents a useful analytical method based on a statistical approach for optimizing the performance of Eco-self-consolidating cement mixture (SCCM) (mortar component). Eco-SCCM is a new class of concrete mixtures that satisfies engineering design requirements (mechanical and rheological properties) and environmental concerns. Three different phases with a total of 43 mixtures were generated using commercially available software to study the effect of using high-volume fly ash on the performance of cement mixtures. Hydrated lime was added as the third component to increase the hydration activity of fly ash. Two different curing regimes were investigated. Fresh properties were measured, and hardened properties such as compressive strength, drying shrinkage, and surface resistivity were also monitored. The results of the phases were compared to track the effect of supplemental levels of fly ash and hydrated lime. To optimize the performance of Eco-SCCM, the desirability function approach was successfully applied. Results showed that mixtures with 37% portland cement Type I/II and 63% fly ash under a moist curing regime yielded the highest performance level.
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Acknowledgments
The authors gratefully wish to acknowledge the financial support provided by the Missouri Department of Transportation (MoDOT) and the National University Transportation Center (NUTC) at the Missouri University of Science and Technology (Missouri S&T). The authors also wish to thank the Department of Civil, Architectural, and Environmental Engineering and the Center for Infrastructure Engineering Studies at Missouri S&T for their support. The conclusions and opinions expressed in this study are those of the authors and do not necessarily reflect the official views or policies of the funding institutions.
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Published In
Journal of Materials in Civil Engineering
Volume 29 • Issue 12 • December 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jan 24, 2017
Accepted: Jun 8, 2017
Published online: Sep 25, 2017
Published in print: Dec 1, 2017
Discussion open until: Feb 25, 2018
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