Mesoscale Analysis of Stress Distribution along ITZs in Recycled Concrete with Variously Shaped Aggregates under Uniaxial Compression
Publication: Journal of Materials in Civil Engineering
Volume 27, Issue 11
Abstract
Recycled aggregate concrete (RAC) has attracted tremendous attention from engineering practice and academic research throughout the world as an effective way to resolve the problems caused by the construction and demolition waste. It is generally accepted that RAC consists of five phases [(1) natural aggregate, (2) old interfacial transition zone (ITZ), (3) old hydrated cement paste, (4) new interfacial transition zone, and (5) new hydrated cement paste], among which the interfacial transition zones are of great significance to the behavior of RAC, due to their characterizations as the weakest links in the concrete mixture. It has been recognized that the shape of aggregates plays an important role in the mechanical behavior of concrete. However, there is very limited information about the shape effect of aggregates on the behavior of the ITZs in RAC. A mesoscale model of RAC is employed in the research reported in this paper to investigate the mechanical behavior of the ITZs under uniaxial compression with differently shaped aggregates. Large stress concentration factors (SCF) have been found at the morphological transitions of the aggregate. A comparison between the distributions of SCF along the ITZs indicates that the shape of aggregates has a more pronounced influence on the stress distribution along the old ITZ than that along the new ITZ, which may be due to the old hydrated cement paste attenuating the shape effect of aggregates on the new ITZ. A quadratic polynomial equation can be curve-fitted to characterize the relationship between the maximum SCF along the ITZs and the fractal dimensions of aggregates.
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References
Adom-Asamoah, M., and Owusu Afrifa, R. (2013). “Shear behaviour of reinforced phyllite concrete beams.” Mater. Des., 43, 438–446.
Agioutantis, Z., Chatzopoulou, E., and Stavroulaki, M. (2000). “A numerical investigation of the effect of the interfacial zone in concrete mixtures under uniaxial compression: The case of the dilute limit.” Cement Concrete Res., 30(5), 715–723.
Akçaoğlu, T., Tokyay, M., and Çelik, T. (2004). “Effect of coarse aggregate size and matrix quality on ITZ and failure behavior of concrete under uniaxial compression.” Cement Concrete Compos., 26(6), 633–638.
ASTM. (2012). “Standard specification for portland cement.” ASTM C150 / C150M-12, West Conshohocken, PA.
Bentz, D. P., et al. (1994). “Interfacial zone percolation in concrete: Effects of interfacial zone thickness and aggregate shape.” Materials Research Society (MRS) Proc., Cambridge University Press, New York.
Bouquety, M. N., Descantes, Y., Barcelo, L., de Larrard, F., and Clavaud, B. (2007). “Experimental study of crushed aggregate shape.” Constr. Build. Mater., 21(4), 865–872.
Casuccio, M., Torrijos, M. C., Giaccio, G., and Zerbino, R. (2008). “Failure mechanism of recycled aggregate concrete.” Constr. Build. Mater., 22(7), 1500–1506.
Dai, Q., Ng, K., Zhou, J., Kreiger, E. L., and Ahlborn, T. M. (2012). “Damage investigation of single-edge notched beam tests with normal strength concrete and ultra high performance concrete specimens using acoustic emission techniques.” Constr. Build. Mater., 31, 231–242.
Demie, S., Nuruddin, M. F., and Shafiq, N. (2013). “Effects of micro-structure characteristics of interfacial transition zone on the compressive strength of self-compacting geopolymer concrete.” Constr. Build. Mater., 41, 91–98.
Deng, J., and Lee, M. M. K. (2007). “Behaviour under static loading of metallic beams reinforced with a bonded CFRP plate.” Compos. Struct., 78(2), 232–242.
Du, C., and Sun, L. (2007). “Numerical simulation of aggregate shapes of two-dimensional concrete and its application.” J. Aerosp. Eng., 172–178.
Du, C., Sun, L., Jiang, S., and Ying, Z. (2013). “Numerical simulation of aggregate shapes of three-dimensional concrete and its applications.” J. Aerosp. Eng., 515–527.
Florea, M. V. A., and Brouwers, H. J. H. (2013). “Properties of various size fractions of crushed concrete related to process conditions and re-use.” Cement Concrete Res., 52, 11–21.
Gao, Y., De Schutter, G., Ye, G., Tan, Z., and Wu, K. (2014). “The ITZ microstructure, thickness and porosity in blended cementitious composite: Effects of curing age, water to binder ratio and aggregate content.” Compos. Part B Eng., 60, 1–13.
Garboczi, E. J., and Bentz, D. (1996). “The effect of the interfacial transition zone on concrete properties: The dilute limit.” Proc., FourthASCE Materials Conf., Reston, VA.
Garboczi, E. J., and Bentz, D. P. (1997). “Analytical formulas for interfacial transition zone properties.” Adv. Cement-Based Mater., 6(3–4), 99–108.
Gómez-Carracedo, A., Alvarez-Lorenzo, C., Coca, R., Martínez-Pacheco, R., Concheiro, A., and Gómez-Amoza, J. L. (2009). “Fractal analysis of SEM images and mercury intrusion porosimetry data for the microstructural characterization of microcrystalline cellulose-based pellets.” Acta Mater., 57(1), 295–303.
Häfner, S., Eckardt, S., Luther, T., and Könke, C. (2006). “Mesoscale modeling of concrete: Geometry and numerics.” Comput. Struct., 84(7), 450–461.
Kawano, H. (2003). “The state of using by-products in concrete in Japan and outline of JIS/TR on recycled concrete using recycled aggregate.” Proc., 1st FIB Congress on Recycling, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland, 245–253.
Kobelev, V. V. (1992). “Microstructural model of a fibrous composite fracture.” Mech. Struct. Mach., 20(1), 1–16.
Li, W., Xiao, J., Sun, Z., and Shah, S. P. (2012). “Failure processes of modeled recycled aggregate concrete under uniaxial compression.” Cement Concrete Compos., 34(10), 1149–1158.
Li, X. (2008). “Recycling and reuse of waste concrete in China: Part I. Material behaviour of recycled aggregate concrete.” Resour. Conserv. Recycl., 53(1–2), 36–44.
Liu, Q., Xiao, J., and Sun, Z. (2011). “Experimental study on the failure mechanism of recycled concrete.” Cement Concrete Res., 41(10), 1050–1057.
Mahaut, F., Mokéddem, S., Chateau, X., Roussel, N., and Ovarlez, G. (2008). “Effect of coarse particle volume fraction on the yield stress and thixotropy of cementitious materials.” Cement Concrete Res., 38(11), 1276–1285.
Maria, A., and Carey, S. (2002). “Using fractal analysis to quantitatively characterize the shapes of volcanic particles.” J. Geophys. Res. Solid Earth, 107, 2283.
Mondal, P., Shah, S. P., and Marks, L. D. (2009). “Nanomechanical properties of interfacial transition zone in concrete.” Nanotechnology in construction, Vol. 3, Z. Bittnar, P. M. Bartos, J. Němeček, V. Šmilauer, and J. Zeman, eds, Springer, Berlin, 315–320.
Moore, C. A., and Donaldson, C. F. (1995). “Quantifying soil microstructure using fractals.” Geotechnique, 45(1), 105–116.
Orford, J. D., and Whalley, W. B. (1983). “The use of the fractal dimension to quantify the morphology of irregular-shaped particles.” Sedimentology, 30(5), 655–668.
Pantazopoulou, S. J., and Mills, R. H. (1995). “Microstructural aspects of the mechanical response of plain concrete.” ACI Mater. J., 92(6), 605–616.
Park, S. W., Xia, Q., and Zhou, M. (2001). “Dynamic behavior of concrete at high strain rates and pressures: II. Numerical simulation.” Int. J. Impact Eng., 25(9), 887–910.
Poon, C. S., Shui, Z. H., and Lam, L. (2004). “Effect of microstructure of ITZ on compressive strength of concrete prepared with recycled aggregates.” Constr. Build. Mater., 18(6), 461–468.
Ramesh, G., Sotelino, E., and Chen, W. (1998). “Effect of transition zone on elastic stresses in concrete materials.” J. Mater. Civ. Eng., 275–282.
Rangaraju, P. R., Olek, J., and Diamond, S. (2010). “An investigation into the influence of inter-aggregate spacing and the extent of the ITZ on properties of portland cement concretes.” Cement Concrete Res., 40(11), 1601–1608.
Rao, A., Jha, K. N., and Misra, S. (2007). “Use of aggregates from recycled construction and demolition waste in concrete.” Resour. Conserv. Recycl., 50(1), 71–81.
Rocco, C. G., and Elices, M. (2009). “Effect of aggregate shape on the mechanical properties of a simple concrete.” Eng. Fract. Mech., 76(2), 286–298.
Sagoe-Crentsil, K. K., Brown, T., and Taylor, A. H. (2001). “Performance of concrete made with commercially produced coarse recycled concrete aggregate.” Cement Concrete Res., 31(5), 707–712.
Tam, V. W. Y., Gao, X. F., and Tam, C. M. (2005). “Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach.” Cement Concrete Res., 35(6), 1195–1203.
Topçu, I. I. B., and Günçan, N. F. (1995). “Using waste concrete as aggregate.” Cement Concrete Res., 25(7), 1385–1390.
Varellis, I., and Norman, T. L. (1994). “Failure of unnotched and notched composites with adhesive strips.” Compos. Sci. Technol., 51(3), 367–376.
Wriggers, P., and Moftah, S. O. (2006). “Mesoscale models for concrete: Homogenisation and damage behaviour.” Finite Elem. Anal. Des., 42(7), 623–636.
Xiao, J., Li, W., Corr, D., and Shah, S. (2013a). “Simulation study on the stress distribution in modeled recycled aggregate concrete under uniaxial compression.” J. Mater. Civ. Eng., 504–518.
Xiao, J., Li, W., Corr, D. J., and Shah, S. P. (2013b). “Effects of interfacial transition zones on the stress-strain behavior of modeled recycled aggregate concrete.” Cement Concrete Res., 52(4), 82–99.
Xiao, J., Li, W., and Poon, C. (2012a). “Recent studies on mechanical properties of recycled aggregate concrete in China—A review.” Sci. China Technol. Sci., 55(6), 1463–1480.
Xiao, J., Li, W., Sun, Z., and Shah, S. P. (2012b). “Crack propagation in recycled aggregate concrete under uniaxial compressive loading.” ACI Mater. J., 109(4), 451–462.
Zhou, X. Q., and Hao, H. (2008). “Mesoscale modelling of concrete tensile failure mechanism at high strain rates.” Comput. Struct., 86(21–22), 2013–2026.
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Published In
Journal of Materials in Civil Engineering
Volume 27 • Issue 11 • November 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Apr 7, 2014
Accepted: Jan 22, 2015
Published online: Mar 9, 2015
Discussion open until: Aug 9, 2015
Published in print: Nov 1, 2015
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