Using Fly Ash, Clay, and Fibers for Simultaneous Improvement of Concrete Green Strength and Consolidatability for Slip-Form Pavement
Publication: Journal of Materials in Civil Engineering
Volume 22, Issue 2
Abstract
This paper presents a procedure to find the optimal balance between the consolidation properties and shape stability of fresh concrete mixtures to achieve a self-consolidating concrete applicable for the slip-form paving process. The investigations started with a conventional slip-form paving concrete mixture. Various types and amounts of supplementary cementitious materials (fly ash), admixtures (water reducers), and additives (clays, magnesium oxide, and fibers) were then gradually applied to modify flowability and maintain sufficient green strength. This approach has led to a successful mix design—the concrete mixture can be consolidated without internal or external vibration and also maintains its slab shape after the slip-form paving process. In the present paper, the step-by-step mix design approach is described, and the effects of admixtures and additives on concrete flowability and shape stability are explained.
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Acknowledgments
The present research is a part of the project “Self-Consolidating Concrete—Applications for Slip-Form Paving,” which is a joined project between Northwestern University (Center for Advanced Cement-Based Materials) and Iowa State University (National Center for Portland Cement Concrete Pavement and Technology). The cosponsorship of this project from the United States Federal Highway Administration, Departments of Transportation of five U.S. states, and members of industry, is greatly acknowledged. Financial support was also provided by the Infrastructure Technology Institute of Northwestern University, which is greatly acknowledged.
References
Ardani, A., Hussain, S., and LaForce, R. (2003). “Evaluation of premature PCC pavement longitudinal cracking in Colorado.” Proc., 2003 Mid-Continent Transportation Research Symp., Iowa State Univ., Ames, Iowa.
ASTM. (2007). “Standard test method for flow of hydraulic cement mortar.” C1437, ASTM, West Conshohocken, Pa.
Banthia, N., and Bindiganvile, V. (2002). “Admixture blends in steel fiber-reinforced dry-mix shotcrete.” Concr. Int., 24(8), 59–63.
Bornemann, R., and Schmidt, M. (2005a). “Fundamentals and strategies for improvement of no-slump concretes: Part I.” Betonwerk Fertigteil-Tech., 69(8), 44–51.
Bornemann, R., and Schmidt, M. (2005b). “Fundamentals and strategies for improvement of no-slump concretes: Part II.” Betonwerk Fertigteil-Tech., 70(9), 50–62.
Caldarone, A. M., Gruber, K. A., and Burg, R. G. (1994). “High-reactivity metakaolin: A new generation mineral admixture.” Concr. Int., 11(16), 37–40.
Detwiler, R., Bhatty, J., Barger, G., and Hansen, E. (2001). “Durability of concrete containing calcined clay.” Concr. Int., 23(4), 43–47.
Elinwa, A. U., Ejeh, S. P., and Akpabio, I. O. (2005). “Using metakaolin to improve sawdust-ash concrete.” Concr. Int., 27(11), 49–52.
Malonn, T., Hariri, K., and Budelmann, H. (2005). “Optimizing the properties of no-slump concrete products.” Betonwerk Fertigteil-Tech., 4(71), 20–26.
Neville, A. M. (1996). Properties of concrete, Wiley, New York, 431.
Park, C. K., Noh, M. H., and Park, T. H. (2005). “Rheological properties of cementitious materials containing mineral admixtures.” Cement Concr. Res., 35(5), 842–849.
Pekmezci, B. Y., Voigt, T., Wang, K., and Shah, S. P. (2007). “Low compaction energy concrete for improved slip form casting of concrete pavements.” ACI Mater. J., 3(104), 251–258.
Tymkowicz, S., and Steffes, R. F. (1996). “Vibration study for consolidation of portland cement concrete.” Proc., Semisesquicentennial Transportation Conf., Iowa State Univ., Ames, Iowa.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 22 • Issue 2 • February 2010
Pages: 196 - 206
Copyright
© 2010 ASCE.
History
Received: May 14, 2008
Accepted: Sep 25, 2009
Published online: Jan 15, 2010
Published in print: Feb 2010
Notes
Note. Associate Editor: Kolluru V. Subramanian
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