Influence of the Type of Coarse Lightweight Aggregate on Properties of Semilightweight Self-Consolidating Concrete
Publication: Journal of Materials in Civil Engineering
Volume 24, Issue 12
Abstract
This paper presents studies on the properties of fresh and hardened semilightweight self-consolidating concrete (SLWSCC) mixtures, produced with two types of manufactured coarse lightweight aggregates (LWA) and normal weight sand. The first type, a sintered pulverized fuel ash, was made from an industrial by-product, fly ash, whereas the second one, an expanded clay, was produced from a naturally sourced clay. For all mixtures, normal weight sand was used as a fine fraction of aggregates, and the portland cement was partially replaced with a limestone powder. The SLWSCC was produced with different water presaturation regimes of the LWAs. The desired initial slump-flow spread was set between 700 and 800 mm. The effect of three superplasticizers was evaluated by testing properties of SLWSCC, normal weight SCC, and paste mixtures. Three SCC fresh properties were measured: the slump-flow, the V-funnel flow time, and the J-ring blocking step. Moreover, the slump-flow loss was evaluated. The degree of segregation was assessed in both fresh and hardened states. Additionally, the hardened density and the compressive strengths were tested. All SLWSCC mixtures were produced with a desired range of slump-flow spread and with satisfactory passing ability assessed with the J-ring test. SLWSCCs prepared with the expanded clay LWA were less sensitive to the variation of water presaturation levels and showed lower viscosity than those made with the sintered pulverized fuel ash LWA. Only mixtures containing SP-3 superplasticizer showed acceptable workability loss resistance. The saturated surface-dry density of all of the mixtures varied in a range of . Mixtures containing 29% of coarse LWAs and 71% of sand (by mass) had 24-h and 28-day compressive strengths above 20 and 40 MPa, respectively, but the mixtures made with the expanded clay were slightly weaker.
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Acknowledgments
The authors wish to acknowledge the financial support from Technology Strategy Board (TSB) and following project partners: Creagh Concrete Ltd., Macrete Ireland Ltd., Network Rail, City University London and Arup. The authors also like to thank Argex NV (Belgium) and Lytag (UK) for providing samples of the LWAs.
References
Aïtcin, P. C. (1998). High-performance concrete, 1st Ed., Taylor & Francis, London.
ASTM. (2003). “Standard test method for density of hydraulic cement.” C188–95, West Conshohocken, PA.
ASTM. (2009). “Standard test method for slump flow of self-consolidating concrete.” C1611–09, West Conshohocken, PA.
Bartos, P. J. M., and Cechura, J. (2001). “Improvement of working environment in concrete construction by the use of self-compacting concrete.” Struct. Concr., 2(3), 127–132.
Bentz, D. P., Halleck, P. M., Grader, A. S., and Roberts, J. W. (2006). “Four-dimensional X-ray microtomography study of water movement during internal curing.” Int. RILEM Conf. on Volume Changes of Hardening Concrete: Testing and Mitigation, RILEM Publications SARL, Bagneux, France, 11–20.
Brouwers, H. J. H., and Radix, H. J. (2005). “Self-compacting concrete: Theoretical and experimental study.” Cem. Concr. Res., 35(11), 2116–2136.
British Standards Institution (BSI). (1995). “Testing aggregates. Methods for determination of density.” BS 812-2:1995, London.
British Standards Institution (BSI). (2000). “Testing hardened concrete. Making and curing specimens for strength tests.” BS EN 12390-2:2000, London.
British Standards Institution (BSI). (2002). “Testing hardened concrete. Compressive strength of test specimens.” BS EN 12390-3:2002, London.
British Standards Institution (BSI). (2007a). “Testing fresh concrete. Self-compacting concrete. J-ring test.” BS EN 12350-12:2007, London.
British Standards Institution (BSI). (2007b). “Testing fresh concrete. Self-compacting concrete. Slump-flow test.” BS EN 12350-8:2007, London.
British Standards Institution (BSI). (2007c). “Testing fresh concrete. Self-compacting concrete. V-funnel test.” BS EN 12350-9:2007, London.
Cauberg, N., and Kestemont, X. (2007). “Lightweight SCC: Systematic approach and case study.” Proc., 5th Int. RILEM Symp. on Self-Compacting Concrete–SCC 2007, RILEM Publications SARL, Bagneux, France, 899–905.
Chandra, S., and Berntsson, L. (2002). Lightweight aggregate concrete: Science, technology, and applications, Noyes Publications, Norwich, NY.
Friedemann, K., Schonfelder, W., Stallmach, F., and Karger, J. (2008). “NMR relaxometry during internal curing of Portland cements by lightweight aggregates.” Mater. Struct., 41(10), 1647–1655.
Haist, M., Mechtcherine, V., and Müller, H. S. (2003). “Retrofitting of building structures using pumpable self-compacting lightweight concrete.” Proc., 3rd Int. RILEM Symp. on Self-Compacting Concrete, RILEM Publications SARL, Bagneux, France, 776–785.
Khayat, K. H., and Yahia, A. (1998). “Simple field tests to characterize fluidity and washout resistance of structural cement grout.” Cem., Concr., Aggregates, 20(1), 145–156.
Kordts, S., and Breit, W. (2003). “Controlling the workability properties of self-compacting concrete used as ready-mixed concrete.” Proc., 3rd Int. RILEM Symp. on Self-Compacting Concrete, RILEM Publications SARL, Bagneux, France, 220–231.
Kwasny, J. et al. (2009). “The influence of different viscosity-modifying admixtures on the fresh properties of superplasticised cement-based grouts.” Proc., 3rd RILEM Int. Symp. on Rheology of Cement Suspensions Like Fresh Concrete: Rheo Iceland 2009, RILEM Publications SARL, Bagneux, France, 208–218.
Lo, T. Y., Cui, H. Z., and Li, Z. G. (2004). “Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete.” Waste Manage., 24(4), 333–338.
Lo, Y., Gao, X. F., and Jeary, A. P. (1999). “Microstructure of pre-wetted aggregate on lightweight concrete.” Build. Environ., 34(6), 759–764.
Lowke, D., Wiegrink, K., and Schiessl, P. (2003). “A simple and significant segregation test for SCC.” Proc., 3rd Int. RILEM Symp. on Self-Compacting Concrete, RILEM Publications SARL, Bagneux, France, 356–366.
Maruyama, I., Kanematsu, M., Noguchi, T., Iikura, H., Teramoto, A., and Hayano, H. (2009). “Evaluation of water transfer from saturated lightweight aggregate to cement paste matrix by neutron radiography.” Nucl. Instrum. Methods Phys. Res., Sect. A, 605(1–2), 159–162.
Müller, H. S., and Linsel, S. (2000). “A new type of high-performance lightweight concrete.” Materials for buildings and structures, Wittmann, F. H.ed. Wiley-VCH, New Delhi, India, 23–27.
Müller, H. S., Mechtcherine, V., and Haist, M. (2001). “Development of self-compacting lightweight aggregate concrete.” Proc., 2nd Int. Symp. on Self-Compacting Concrete, COMS Engineering Corporation, Tokyo, Japan, 737–742.
Nielsson, I., and Wallevik, O. (2003). “Rheological evaluation of some empirical test methods—Preliminary results.” Proc., 3rd Int. RILEM Symp. on Self-Compacting Concrete, RILEM Publications SARL, Bagneux, France, 59–68.
Okamura, H., and Ozawa, K. (1994). “Self-compactable high performance concrete in Japan.” Int. Workshop on High Performance Concrete, American Concrete Institute, Detroit, 2–16.
Shen, L., Struble, L., and Lange, D. (2005). “Testing static segregation of SCC.” Proc., 2nd North American Conf. on Design and Use of Self-Consolidating Concrete and 4th Int. RILEM Symp. on Self-Compacting Concrete (CD-ROM), A Hanley Wood Publication, Addison, IL.
Shi, C., and Wu, Y. (2005). “Mixture proportioning and properties of self-consolidating lightweight concrete containing glass powder.” ACI Mater. J., 102(5), 355–363.
Sonebi, M. (2004). “Medium strength self-compacting concrete containing fly ash: Modelling using factorial experimental plans.” Cem. Concr. Res., 34(7), 1199–1208.
Sonebi, M., Grünewald, S., and Walraven, J. (2007). “Filling ability and passing ability of self-consolidating concrete.” ACI Mater. J., 104(2), 162–170.
Zhang, M., and Gjorv, O. E. (1991). “Characteristics of lightweight aggregates for high-strength concrete.” ACI Mater. J., 88(2), 150–158.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 24 • Issue 12 • December 2012
Pages: 1474 - 1483
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Aug 12, 2011
Accepted: Mar 23, 2012
Published online: Mar 27, 2012
Published in print: Dec 1, 2012
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