FRP-Confined Self-Compacting Concrete under Axial Compression
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 11
Abstract
Self-compacting concrete (SCC) has become increasingly popular in recent years, particularly in constructing heavily reinforced concrete structures cast with a stay-in-place form (e.g., concrete-filled tubular columns) where the quality of concrete is difficult to control and/or examine. When used in fiber-reinforced polymer (FRP) tubes, the SCC is subjected to confinement from the FRP tube. While many studies have been conducted on confined normal concrete (NC), research on confined SCC has been very limited. The few existing studies on confined SCC (e.g., steel-confined SCC and FRP-confined SCC) have shown that the behavior of confined SCC may be different from that of confined NC of the same unconfined strength. Against this background, this paper presents the results of a series of axial compression tests conducted to gain a better understanding of the behavior of FRP-confined SCC. The test variables included the concrete strength as well as the type and thickness of the FRP jacket. Similar to FRP-confined NC, the present tests showed that the strength and ductility of SCC can also be significantly enhanced by FRP confinement, and its stress-strain curve also has a bilinear shape. A comparison between the test results and an accurate stress-strain model developed for FRP-confined NC is also presented. The comparison shows that the behavior of FRP-confined SCC is generally similar to that of FRP-confined NC, although the lateral expansion of the former appears to be a little larger.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors are grateful for the financial support received from the Natural Science Foundation of China (Project No. 51108096) and the Hong Kong Research Grants Council (PolyU 5285/10E). The authors also wish to thank Dr. Lik Lam for his valuable contribution to the experimental work.
References
American Concrete Institute (ACI). (2011). “Building code requirements for structural concrete and commentary.” ACI-318, Farmington Hills, MI.
ASTM. (2000). “Standard test method for tensile properties of polymer matrix composite materials.” D3039/D3039M-00, West Conshohocken, PA.
Bonen, D., and Shah, S. P. (2005). “Fresh and hardened properties of self-consolidating concrete.” Prog. Struct. Eng. Mater., 7, 14–26.
Cheng, L. J., and Karbhari, V. M. (2006). “New bridge systems using FRP composites and concrete: A state-of-the-art review.” Prog. Struct. Eng. Mater., 8(4), 143–154.
Domone, P. L. (2007). “A review of the hardened mechanical properties of self-compacting concrete.” Cem. Concr. Compos., 29(1), 1–12.
El-Chabib, H., Nehdi, M., and El-Naggar, M. H. (2005). “Behavior of SCC confined in short GFRP tubes.” Cem. Concr. Compos., 27(1), 55–64.
Fam, A. Z., and Rizkalla, S. H. (2001). “Confinement model for axially loaded concrete confined by circular fiber-reinforced polymer tubes.” ACI Struct. J., 98(4), 451–461.
Han, L. H., and Yao, G. H. (2004). “Experimental behaviour of thin-walled hollow structural steel (HSS) columns filled with self-consolidating concrete (SCC).” Thin-Walled Struct., 42(9), 1357–1377.
Han, L. H., Yao, G. H., and Zhao, X. L. (2005). “Tests and calculations for hollow structural steel (HSS) stub columns filled with self-consolidating concrete (SCC).” J. Constr. Steel Res., 61(9), 1241–1269.
Harries, K. A., and Kharel, G. (2002). “Behavior and modeling of concrete subject to variable confining pressure.” ACI Mater. J., 99(2), 180–189.
Jiang, T., and Teng, J. G. (2007). “Analysis-oriented stress-strain models for FRP-confined concrete.” Eng. Struct., 29(11), 2968–2986.
Lachemi, M., Hossain, K. M. A., and Lambros, V. B. (2006). “Axial load behavior of self-consolidating concrete-filled steel tube columns in construction and service stages.” ACI Struct. J., 103(1), 38–47.
Lam, L., and Teng, J. G. (2002). “Strength models for fiber-reinforced plastic-confined concrete.” J. Struct. Eng., 612–623.
Lam, L., and Teng, J. G. (2003). “Design-oriented stress-strain model for FRP-confined concrete.” Constr. Build. Mater., 17(6–7), 471–489.
Lam, L., and Teng, J. G. (2004). “Ultimate condition of FRP-confined concrete.” J. Compos. Constr., 539–548.
Lee, C. S., and Hegemier, G. A. (2009). “Model of FRP-confined concrete cylinders in axial compression.” J. Compos. Constr., 442–454.
Liang, M., Wu, Z. M., Ueda, T., Zheng, J. J., and Akogbe, R. (2012). “Experiment and modelling on axial behaviour of carbon fiber reinforced polymer confined concrete cylinders with different sizes.” J. Reinforc. Plast. Compos., 31(6), 389–403.
Mirmiran, A. (2003). “Stay-in-place FRP form for concrete columns.” Adv. Struct. Eng., 6(3), 231–241.
Mirmiran, A., and Shahawy, R. (1997). “Behavior of concrete columns confined by fiber composites.” J. Struct. Eng., 583–590.
Muciaccia, M., Giussani, F., Rosati, G., and Mola, F. (2011). “Response of self-compacting concrete filled tubes under eccentric compression.” J. Constr. Steel Res., 67(5), 904–916.
Paultre, P., Khayat, K. H., Cusson, D., and Tremblay, S. (2005). “Structural performance of self-consolidating concrete used in confined concrete columns.” ACI Struct. J., 102(4), 560–568.
Popovics, S. (1973). “Numerical approach to the complete stress-strain relation for concrete.” Cem. Concr. Res., 3(5), 583–599.
Richart, F. E., Brandtzaeg, A., and Brown, R. L. (1928). “A study of the failure of concrete under combined compressive stresses.” Univ. Illinois Bull., 26(12).
Teng, J. G., Huang, Y. L., Lam, L., and Ye, L. P. (2007a). “Theoretical model for fiber-reinforced polymer-confined concrete.” J. Compos. Constr., 201–210.
Teng, J. G., Yu, T., Wong, Y. L., and Dong, S. L. (2007b). “Hybrid FRP-concrete-steel tubular columns: concept and behaviour.” Constr. Build. Mater., 21(4), 846–854.
Xiao, Q. G., Teng, J. G., and Yu, T. (2010). “Behavior and modeling of confined high-strength concrete.” J. Compos. Constr., 249–259.
Yeh, F. Y., and Chang, K. C. (2007). “Confinement efficiency and size effect of FRP confined circular concrete columns.” Struct. Eng. Mech., 26(2), 127–150.
Youssef, M. N. (2003). “Stress-strain model for concrete confined by FRP composites.” Ph.D. dissertation, Univ. of California, Irvine.
Yu, T., Teng, J. G., and Wong, Y. L. (2010). “Stress-strain behavior of concrete in hybrid double-skin tubular columns.” J. Struct. Eng., 379–389.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 11 • November 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jan 4, 2013
Accepted: Nov 27, 2013
Published online: Nov 29, 2013
Published in print: Nov 1, 2014
Discussion open until: Nov 5, 2014
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.