Fracture of Recycled Aggregate Concrete under High Loading Rates
Publication: Journal of Materials in Civil Engineering
Volume 28, Issue 6
Abstract
Using renewed materials in the construction industry is very important for sustainable development. Recycled aggregate concrete (RAC) is one of the renewed materials. RAC uses demolished concrete as aggregate to make concrete. Previous studies showed that the strength of RAC can be improved and made comparable to regular concrete. This study examines the rate effect on fracture properties of RAC using an available improvement method. The RAC was made of 100% recycled coarse aggregate pretreated by a surface coating method. The fracture properties of RAC were tested based on the size effect method. Three different sizes of notched RAC beams were tested under three different strain rates, from to , controlled by crack-mouth-opening-displacement (CMOD). For the beams under high loading rates, the fracture properties were found to be rate-dependent. The critical stress intensity factor, , and the fracture energy release rate, , increase with increasing loading rate. Two empirical equations were proposed for and as functions of the loading rate. Under high loading rates, the RAC beams were found to be less brittle than under the static load. This was also indicated by the test data of effective fracture process zone length, , which increased with an increasing loading rate.
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Acknowledgments
The authors acknowledge the partial support by the U.S. National Science Foundation under grant CMMI-0900607 to the University of Colorado at Boulder. Opinions expressed in this paper are those of the authors and do not necessarily reflect those of the sponsor.
References
ACI. (2006). “Sieve analysis of fine and coarse aggregates.” ACI C-136, Farmington Hills, MI.
ASTM. (2015). “Standard specification for portland cement.” ASTM C150, West Conshohocken, PA.
ASTM. (2013). “Standard specification for concrete aggregates.” ASTM C33, West Conshohocken, PA.
Bai, G. L., Chai, Y. Y., Lia, X., and Chang, Y. Z. (2010). “Experimental research on recycled concrete shear strength of uniform depth beam.” 2nd Int. Conf. on Waste Engineering and Management, ICWEM 2010, RILEM, Shanghai, China.
Bažant, Z. P., Bai, S. P., and Gettu, R. (1993). “Fracture of rock: Effect of loading rate.” Eng. Fract. Mech., 45(3), 393–398.
Bažant, Z. P., and Gettu, R. (1992). “Rate effects and load relaxation in static fracture of concrete.” ACI Mater. J., 89(5), 456–468.
Bažant, Z. P., and Kazemi, M. T. (1990). “Determination of fracture energy, process zone length and brittleness number from size effect, with application to rock and concrete.” Int. J. Fract., 44(2), 111–131.
Bažant, Z. P., and Planas, J. (1997). Fracture and size effect in concrete and other quasibrittle materials, 1st Ed., CRC Press, Boca Raton, FL.
Bischoff, P. H., and Perry, S. H. (1991). “Compressive behaviour of concrete at high strain rates.” Mater. Struct., 24(6), 425–450.
Etxeberria, M., Vazques, E., and Barra, M. (2007). “Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete.” Cem. Concr. Res., 37(5), 735–742.
Fu, H. C., Erki, M. A., and Seckin, M. (1991). “Review of effects of loading rate on concrete in compression.” J. Struct. Eng., 117(12), 3645–3659.
Gettu, R., Bažant, Z. P., and Karr, M. E. (1991). “Fracture properties and brittleness of high-strength concrete.” ACI Mater. J., 87(6), 608–618.
Grote, D. L., Park, S. W., and Zhou, M. (2001). “Dynamic behavior of concrete at high strain rates and pressures: I. Experimental characterization.” Int. J. Impact Eng., 25(9), 869–886.
Hillerborg, A., Modeer, M., and Petersson, P. E. (1976). “Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements.” Cem. Concr. Res., 6(6), 773–781.
Jian -He, X., Yong-Change, G., Li-Sha, L., and Zhi-Hong, X. (2015). “Compressive and flexural behaviors of a new steel-fiber-reinforced recycled aggregate concrete with crumb rubber.” Constr. Build. Mater., 79(15), 263–272.
Jiusu, L., Hanning, X., and Yong, Z. (2009). “Influence of coating recycled aggregate surface with pozzolanic powder on properties of recycled aggregate concrete.” Constr. Build. Mater., 23(3), 1287–1291.
Kou, S. C., Poon, C. S., and Dixon, C. (2007). “Influence of fly ash as cement replacement on the properties of recycled aggregate concrete.” J. Mater. Civ. Eng., 19(9), 709–717.
Li, Q. M., Lu, Y. B., and Meng, H. (2009). “Further investigation on the dynamic compressive strength enhancement of concrete-like materials based on Split Hopkinson pressure bar tests. Part I: Numerical simulations.” Int. J. Impact Eng., 36(12), 1335–1345.
Li, Q. M., and Meng, M. (2003). “About the dynamic strength enhancement of concrete-like materials in a split Hopkinson pressure bar test.” Int. J. Solids Struct., 40(2), 343–360.
Liang, Y. C., Ye, Z. M., Vernerey, F. J., and Xi, Y. (2013). “Development of processing methods to improve strength of concrete with 100% recycled coarse aggregate.” J. Mater. Civ. Eng., 04014163.
Mahdi, A., Adam, S., Jeffery, S. V., and Kamal, H. K. (2015). “An experimental study on flexural strength of reinforced concrete beams with 100% recycled concrete aggregate.” Eng. Struct., 88(1), 154–162.
Mirjana, M., Snezana, M., and Radonjanin, V. (2010). “Recycled concrete aggregate for structural concrete production.” Sustainability, 25, 1204–1225.
Pajak, M. (2011). “The influence of the strain rate on the strength of concrete taking into account the experimental techniques.” ACEE, 3, 77–86.
Pastor, J. Y., Guinea, G., Planas, J., and Elices, M. (1995). “A new expression for the stress intensity factor of a three-point bend specimen.” Anales de Meca’nica de la Fractura, 12, 85–90.
Ruiz, G., Zhang, X. X., Yu, R. C., Porras, R., Poveda, E., and Del Viso, J. (2010). “Loading rate effect on the fracture behaviour of high-strength concrete.” EPJ Web of Conf., 7.
Silva, R. V., de Brito, J., and Dhir, R. K. (2015). “Tensile strength behavior of recycled aggregate concrete.” Constr. Build. Mater., 83(15), 108–118.
U.S. Department of Transportation and Federal Highway Administration. (2004). “Transportation applications of recycled concrete aggregate.” Washington, DC.
Wakabayashi, M., Nakamura, T., Yoshida, N., Iwai, S., and Watanabe, Y. (1980). “Dynamic loading effects on the structural performance of concrete and steel materials and beams.” Proc., 7th World Conf. on Earthquake Engineering, Vol. 6, Indian Institute of Technology, Kanpur, India, 271–278.
Watstein, D. (1953). “Effect of straining rate on the compressive strength and elastic properties of concrete.” ACI Mater. J., 49, 729–744.
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Published In
Journal of Materials in Civil Engineering
Volume 28 • Issue 6 • June 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Mar 13, 2015
Accepted: Oct 20, 2015
Published online: Jan 13, 2016
Published in print: Jun 1, 2016
Discussion open until: Jun 13, 2016
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