Rheological Properties of Wet-Mix Shotcrete Mixtures Made with Crushed Aggregate
Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 11
Abstract
The recent depletion of high-quality and well-graded natural-aggregate sources is one of the factors compromising the production of good-quality shotcrete. For this reason, the use of various alternative aggregate sources has been receiving increasing attention as one of the promising solutions for this issue. In this study, the feasibility of using crushed aggregate obtained as a by-product of tunnel-excavation processes in wet-mix shotcrete (WMS) is evaluated based on laboratory tests. To fulfill this aim, efforts have been made to evaluate rheological properties of WMS mixtures incorporating crushed aggregates because shotcrete rheology is recognized as one of the most significant components affecting actual shotcrete behavior such as pumpability and shootability. Other tests performed include air content, slump, and flow. The acceptability of crushed-aggregate WMS mixtures with four standard gradations were evaluated first. Then, allowable gradation ranges for WMS mixtures made with crushed aggregate were suggested based on modified Dinger-Funk gradations and prescribed WMS performance criteria. Results indicate that the use of crushed aggregate may be a suitable measure effectively meeting both industrial demands and shotcrete performance requirements.
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Acknowledgments
This research was supported by Grants 13RDRP-B066780 and 15TLRP-B079261-02, funded by Ministry of Land, Infrastructure and Transport of the Korean government and was performed using the facilities of the Institute for Advanced Construction Materials at Kangwon National University, Chuncheon, South Korea.
References
ACI (American Concrete Institute). (2014). “Specification for shotcrete.” ACI 506.2-13, Farmington Hills, MI.
ACI (American Concrete Institute). (2016). “Guide to shotcrete.” ACI 506R-16, Farmington Hills, MI.
ASTM. (2008a). “Standard specification for concrete aggregates.” ASTM C33/C33M-08, West Conshohocken, PA.
ASTM. (2008b). “Standard specification for materials for shotcrete.” ASTM C1436-08, West Conshohocken, PA.
ASTM. (2015). “Standard specification for portland cement.” ASTM C150/C150M-15, West Conshohocken, PA.
Beaupre, D. (1994). “Rheology of high performance shotcrete.” Ph.D. dissertation, Univ. of British Columbia, Vancouver, BC, Canada.
Choi, S. Y. (2008). “Rheology and air void structures of wet-mix shotcrete.” Ph.D. dissertation, Kangwon National Univ., Chuncheon, Korea.
de Larrard, F., Ferraris, C. F., and Sedran, T. (1998). “Fresh concrete: A HerscheI-Bulkley material.” Mater. Struct., 31(7), 494–498.
EFNARC (European Federation of National Associations Representing for Concrete). (1996). European specification for sprayed concrete, Brussels, Belgium.
EFNARC (European Federation of Producers and Applicators of Specialist Products for Structures). (2006). Guidelines for viscosity modifying admixtures for concrete, Brussels, Belgium.
Ferraris, C. F., and de Larrard, F. (1998). “Testing and modelling of fresh concrete rheology.”, Building and Fire Research Laboratory, National Institute of Standards and Technology, Gaithersburg, MD.
Funk, J. E., and Dinger, D. R. (1994). Predictive process control of crowded particulate suspensions: Applied to ceramic manufacturing, Kluwer Academic, Boston.
Geiker, M. R., Brandi, M., Thrane, L. N., and Nielsen, L. F. (2002). “On the effect of coarse aggregate fraction and shape on the rheological properties of self-compacting concrete.” Cem. Concr. Aggregate, 24(1), 3–6.
Goodier, C. I., Austin, S. A., and Robins, P. J. (2008). “Low-volume wet-process sprayed concrete: Hardened properties.” Mater. Struct., 41(1), 99–111.
Hu, J. (2005). “A study of effects of aggregate on concrete rheology.” Ph.D. dissertation, Iowa State Univ., Ames, IA.
Jolin, M., and Beaupre, D. (2003). “Understanding wet-mix shotcrete: Mix design, specifications, and placement.” Shotcrete, 6–12.
Jolin, M., Burns, D., Bissonnette, B., Gagnon, F., and Bolduc, L.-S. (2009). “Understanding the pumpability of concrete.” Proc., Shotcrete for Underground Support XI, Davos, Switzerland.
Koehler, E. P., and Fowler, D. W. (2010). “Comparison of workability test methods for self-consolidating concrete.” J. ASTM Int., 7(2), 1–19.
Korean Industrial Standards. (2002). “Materials for shotcrete.” KS F 2577, Seoul.
Korean Industrial Standards. (2006). “Standard test method for air content of fresh concrete by the pressure method.” KS F 2421, Seoul.
Korean Industrial Standards. (2007a). “Aggregate for concrete.” KS F 2526, Seoul.
Korean Industrial Standards. (2007b). “Method of test for slump of concrete.” KS F 2402, Seoul.
Korean Industrial Standards. (2007c). “Sampling method for fresh concrete.” KS F 2401, Seoul.
Korean Industrial Standards. (2007d). “Flow table for use in tests of hydraulic cement.” KS L 5111, Seoul.
Kosmatka, S. H., Kerkhoff, B., and Panarese, W. C. (2002). Design and control of concrete mixture, 14th Ed., Portland Cement Association, Skokie, IL.
Laskar, A. I. (2009). “Correlating slump, slump flow, Vebe and flow tests to rheological parameters of high-performance concrete.” Mater. Res., 12(1), 75–81.
Leung, C. K. Y., Lai, R., and Lee, A. Y. F. (2005). “Properties of wet-mixed fiber reinforced shotcrete and fiber reinforced concrete with similar composition.” Cem. Concr. Res., 35(4), 788–795.
Malhotra, V. M. (1964). “Correlation between particle shape and surface texture of fine aggregates and their water requirement.” Mater. Res. Stand., 4(12), 656–658.
Mindess, S., Young, J. F., and Darwin, D. (2003). Concrete, 2nd Ed., Prentice Hall, Upper Saddle River, NJ.
Murata, J., and Kukawa, H. (1992). “Viscosity equation for fresh concrete.” ACI Mater. J., 89(3), 230–237.
Quiroga, P. N., and Fowler, D. W. (2004). “The effect of aggregates characteristics on the performance of portland cement concrete.”, International Center for Aggregates Research, Univ. of Texas at Austin, Austin, TX.
Thalmann-Suter, C. N. (1999). “Concrete aggregate production with TBM muck explained on the AlpTransit tunnel projects.” Utilizing Ready Mix Concr. Mortar, 131–144.
Weiss, R. (2007). “Concrete and shotcrete with crushed aggregates: Experience from the AlpTransit construction site Mitholz, underground space–The 4th dimension of metropolises.” Proc., World Tunnel Congress 2007 and 33rd ITA/AITES Annual General Assembly, Taylor & Francis, London.
Wills, M. H., Jr. (1967). “How aggregate particle shape influences concrete mixing water requirement and strength.” J. Mater., 2(4), 843–865.
Yun, K.-K., Choi, P., and Yeon, J. H. (2015). “Correlating rheological properties to the pumpability and shootability of wet-mix shotcrete mixtures.” Constr. Build. Mater., 98, 884–891.
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Published In
Journal of Materials in Civil Engineering
Volume 29 • Issue 11 • November 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: May 31, 2016
Accepted: May 24, 2017
Published online: Sep 12, 2017
Published in print: Nov 1, 2017
Discussion open until: Feb 12, 2018
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