Simulation Study on the Stress Distribution in Modeled Recycled Aggregate Concrete under Uniaxial Compression
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 4
Abstract
To investigate the stress distribution in recycled aggregate concrete (RAC) under uniaxial compression, modeled recycled aggregate concrete (MRAC) was studied by numerical simulation. The mechanical properties of interfacial transition zones (ITZs) of RAC were measured by the nanoindentation technique. A two-dimensional numerical study of the stress distribution characteristics of MRAC under the uniaxial compression is presented. The simulation was verified by experimental results. A parametric analysis is then conducted to study the sensitivity of each phase’s mechanical properties and the amounts of old cement mortar in the MRAC. Simulation results demonstrate that a concentration of tensile stress and shear stress appears around new and old ITZ regions. It is found that when the elastic modulus of natural aggregates increases, the magnitude of tensile stress concentration becomes higher, whereas as the elastic modulus of ITZs increases, the magnitude of stress concentration decreases. It is also shown that the higher relative elastic modulus of new cement mortar compared with that of the old cement mortar significantly reduces the stress concentrations at the regions between recycled coarse aggregate particles. The amount of old cement mortar affects the stress distribution in the new ITZ much more obviously than that in the old ITZ.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This work was sponsored by the Chinese National Science Foundation (51178340) and the Shanghai Science and Technique Committee (No. 10231202000). The authors would like to thank Professor David A. Lange from University of Illinois at Urbana-Champaign. Wengui Li also highly appreciates the China Scholarship Council (CSC) Program, which sponsored him to study as a cosupervised Ph.D. student at Northwestern University, Illinois.
References
ABAQUS [Computer software]. (2008). Version 6.8, Dassault Systèmes, Providence, Rhode Island.
Abdelmoumen, S., Bellenger, E., Lynge, B., and Queneudec-T’Kint, M. (2010). “Finite element analysis of elastic property of concrete composites with ITZ.” Comput. Concr., 7(6), 497–510.
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.” Cem. Concr. Res., 30(5), 715–723.
Akcaoglu, T., Tokyay, M., and Celik, T. (2005). “Assessing the ITZ microcracking via scanning electron microscope and its effect on the failure behavior of concrete.” Cem. Concr. Res., 35(2), 358–363.
Buyukozturk, O., Nilson, A. H., and Slate, F. O. (1971). “Stress-strain response and fracture of a concrete model in biaxial loading.” ACI Mater. J., 68(8), 590–599.
Casuccio, M., Torrijos, M. C., Giaccio, G., and Zerbino, R. (2008). “Failure mechanism of recycled aggregate concrete.” Constr. Build. Mater., 22(7), 1500–1506.
Choi, S., and Shah, S. P. (1999). “Propagation of microcracks in concrete studied with subregion scanning computer vision (SSCV).” ACI Mater. J., 96(2), 255–260.
Corr, D. J., and Graham, L. L. (2003). “Mechanical analysis with moving-window generalized method of cells.” ACI Mater. J., 100(2), 156–164.
Etxeberria, M., Vázquez, E., Marí, A., 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.
Ghouse, M. D., Rao, L., and Rao, B. N. (2010). “Numerical simulation of fracture process in cement concrete using cell approach.” Mech. Adv. Mater. Struct., 17(7), 481–487.
Jeong, H. (2011). “Processing and properties of recycled aggregate concrete.” M.S. thesis, Univ. of Illinois at Urbana—Champaign, Urbana, IL.
Katz, A. (2004). “Treatments for the improvement of recycled aggregate.” J. Mater. Civ. Eng., 16(6), 597–603.
Khalaf, F. M., and DeVenny, A. S. (2004). “Recycling of demolished masonry rubble as coarse aggregate in concrete: Review.” J. Mater. Civ. Eng., 16(4), 331–340.
Liu, Q., Xiao, J. Z., and Sun, Z. H. (2011). “Experimental study on the failure mechanism of recycled concrete.” Cem. Concr. Res., 41(10), 1050–1057.
Maso, J. C. (1996). Interfacial transition zone in concrete, E &FN Spon, Toulouse, France.
Mitsui, K., Li, Z. J., Lange, D. A., and Shah, S. P. (1994). “Relationship between microstructure and mechanical properties of paste-aggregate interface.” ACI Mater. J., 91(1), 30–39.
Mondal, P., Shah, S. P., and Marks, L. D. (2009). “Nanomechanical properties of interfacial transition zone in concrete.” Nanotechnol. Constr., 3, 315–320.
Mondal, P., Shah, S. P., and Marks, L. D. (2011). “A nanoindentation study to understand effects of aggregate size, mineral composition, surface texture, and fineness of binder on properties of interfacial transition zone.” Cem. Concr. Compos. (in press).
Oliver, W. C., and Pharr, G. M. (1992). “An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments.” J. Mater. Res., 7(6), 1564–1583.
Ramesh, G., Sotelino, E. D., and Chen, W. F. (1996). “Effect of transition zone on elastic moduli of concrete materials.” Cem. Concr. Res., 26(4), 611–622.
Ramesh, G., Sotelino, E. D., and Chen, W. F. (1998). “Effect of transition zone on elastic moduli of concrete materials.” J. Mater. Civ. Eng., 10(4), 275–282.
Ryu, J. S. (2002). “An experimental study on the effect of recycled aggregate on concrete properties.” Mag. Concr. Res., 54(1), 7–12.
Schlangen, E., and Mier, J. G. M. (1992). “Simple lattice model for numerical simulation of fracture of concrete materials and structures.” Mater. Struct., 25(9), 534–542.
Shah, S. P., and Winter, G. (1966). “Inelastic behavior and fracture of concrete.” ACI Mater. J., 63(9), 925–930.
Sun, Z. H., Garboczi, E. J., and Shah, S. P. (2007). “Modeling the elastic properties of concrete composites: Experiment, differential effective medium theory, and numerical simulation.” Cem. Concr. Compos., 29(1), 22–38.
Tam, V. W. Y., Gao, X. F., and Tam, C. M. (2005). “Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach.” Cem. Concr. Res., 35(6), 1195–1203.
Tarefder, R., Zaman, A. M., and Uddin, W. (2010). “Determing hardness and elastic modulus of asphalt by nanoindentation.” J. Mater. Civ. Eng., 10(3), 106–116.
Tasong, W. A., Lynsdale, C. J., and Cripps, J. C. (1999). “Aggregate-cement paste interface Part I. Influence of aggregate geochemistry.” Cem. Concr. Res., 29(7), 1019–1025.
Teramoto, A., Jeong, H., Lange, D. A., and Maruyama, I. (2011). “Tensile properties of recycled aggregate concrete.” Proc. Jpn. Concr. Inst., 33(1), 551–556.
Tregger, N., Corr, D. J., Graham-Brady, L., and Shah, S. P. (2007). “Modeling mesoscale uncertainty for concrete in tension.” Comput. Concr., 4(5), 347–362.
Wang, X. H., Jacobsen, S., He, Z. L., Zhang, Z. L., Lee, S. F., and Lein, H. L. (2009). “Application of nanoindentation testing to study of the interfacial transition zone in steel fiber reinforced mortar.” Cem. Concr. Res., 39(8), 701–715.
Wang, X. H., Jacobsen, S., Lee, S. F., He, J. Y., and Zhang, Z. L. (2010). “Effect of silica fume, steel fiber and ITZ on the strength and fracture behavior of mortar.” Mater. Struct., 43(1), 125–139.
Xiao, J. Z., Li, J. B., and Zhang, C. (2005). “Mechanical properties of recycled aggregate concrete under uniaxial loading.” Cem. Concr. Res., 35(6), 1187–1194.
Xiao, J. Z., Li, W. G., and Liu, Q. (2011). “Meso-level numerical simulation on mechanical properties of modeled recycled concrete under uniaxial compression.” J. Tongji Univ. (Natural Science), 39(6), 791–797 (in Chinese).
Xiao, J. Z., Li, W. G., Sun, Z. H., and Shah, S. P. (2012). “Crack propagation in recycled aggregate concrete under uniaxial compressive loading.” ACI Mater. J., 109(4), 451–462.
Zhang, W. T., and Ingham, J. M. (2010). “Using recycled concrete aggregates in New Zealand ready-mix concrete production.” J. Mater. Civ. Eng., 22(5), 443–450.
Zhu, W., Sonebi, M., and Bartos, P. J. M. (2004). “Bond and interfacial properties of reinforcement in self-compacting concrete.” Mater. Struct., 37(7), 442–448.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 4 • April 2013
Pages: 504 - 518
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Dec 14, 2011
Accepted: May 30, 2012
Published online: Nov 20, 2012
Published in print: Apr 1, 2013
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.