Recycled concrete aggregate properties improvement

Main Article Content

Iva Despotović
Adrijana Savić
Miljan Kovačević
Jovana Bojković
Vladimir Mandić

Abstract

In recent years, there has been increasing interest in the use of recycled concrete aggregate (RCA) as a sustainable alternative to natural aggregates in construction. RCA is obtained by crushing and reusing old concrete, which contains both the original aggregate and a cement mortar layer. However, the quality of RCA can vary depending on the characteristics and quantity of the leftover mortar. In this study, we aim to investigate different methods for improving the chemical, physical, and mechanical features of RCA, with a focus on untreated RCA, RCA exposed to a pre-soaking treatment in HCl, and RCA exposed to rapid carbonation. The overall results show that if RCA is obtained by crushing compact, high-quality concrete, the procedures for improving aggregate quality are not necessary.

Article Details

How to Cite
[1]
I. Despotović, A. Savić, M. Kovačević, J. Bojković, and V. Mandić, “Recycled concrete aggregate properties improvement”, ET, vol. 2, no. 4, Nov. 2023.
Section
Original Scientific Papers

References

“Directive on waste and repealing certain Directives”, Directive 2008/98/EC, Official Journal of the European Union, L 312/3, (2008)

M. Pepe, R. D. Toledo Filho, E. A. B. Koenders, and E. Martinelli, “Alternative processing procedures for recycled aggregates in structural concrete”, Construction and Building Materials, Vol. 69, pp. 124–132, https://doi.org/10.1016/j.conbuildmat.2014.06.084, (2014)

T. C. Hansen, “Recycled aggregates and recycled aggregate concrete second state-of-the-art report developments 1945-1985”, Materials and Structures, Vol. 19, pp. 201–246, https://doi.org/10.1007/BF02472036, (1986)

A. Katz, “Properties of concrete made with recycled aggregate from partially hydrated old concrete”, Cement and Concrete Research, Vol. 33(5), pp. 703–711, https://doi.org/10.1016/S0008-8846(02)01033-5, (2003)

V. Corinaldesi, “Mechanical and elastic behaviour of concretes made of recycled-concrete coarse aggregates”, Construction and Building Materials, Vol. 24(9), pp.1616–1620, https://doi.org/10.1016/j.conbuildmat.2010.02.031, (2010)

R. U. D. Nassar and P. Soroushian, “Strength and durability of recycled aggregate concrete containing milled glass as partial replacement for cement”, Construction and Building Materials, Vol. 29, pp. 368–377, https://doi.org/10.1016/j.conbuildmat.2011.10.061, (2012)

K. Rahal, “Mechanical properties of concrete with recycled coarse aggregate”, Building and Environment, Vol. 42(1), pp. 407–415, https://doi.org/10.1016/j.buildenv.2005.07.033, (2007)

G. Fathifazl, A. Abbas, A. G. Razaqpur, O. B. Isgor, B. Fournier, and S. Foo, “New mixture proportioning method for concrete made with coarse recycled concrete aggregate”, Journal of Materials in Civil Engineering, Vol. 21(10), pp. 601–611, https://doi.org/10.1061/(ASCE)0899-1561(2009)21:10(601), (2009)

H. K. A. Al-Bayati, P. K. Das, S. L. Tighe, and H. Baaj, “Evaluation of various treatment methods for enhancing the physical and morphological properties of coarse recycled concrete aggregate”, Construction and Building Materials, Vol. 112, pp. 284–298, https://doi.org/10.1016/j.conbuildmat.2016.02.176, (2016)

J. García-González, D. Rodríguez-Robles, A. Juan-Valdés, J. M. M. del Pozo, and M. I. Guerra-Romero, “Pre-saturation technique of the recycled aggregates: Solution to the water absorption drawback in the recycled concrete manufacture,” Materials (Basel), Vol. 7(9), pp. 6224–6236, https://doi.org/10.3390/ma7096224, (2014)

V. W. Y. Tam, C. M. Tam, and K. N. Le, “Removal of cement mortar remains from recycled aggregate using pre-soaking approaches”, Resources, Conservation and Recycling, Vol. 50(1), pp. 82–101, https://doi.org/10.1016/j.resconrec.2006.05.012, (2007)

S. Ismail and M. Ramli, “Mechanical strength and drying shrinkage properties of concrete containing treated coarse recycled concrete aggregates”, Construction and Building Materials, Vol. 68, pp. 726–739, https://doi.org/10.1016/j.conbuildmat.2014.06.058, (2014)

E. Güneyisi, M. Gesoǧlu, Z. Algin, and H. Yazici, “Effect of surface treatment methods on the properties of self-compacting concrete with recycled aggregates”, Construction and Building Materials, Vol. 64, pp. 172–183, https://doi.org/10.1016/j.conbuildmat.2014.04.090, (2014)

S. Ismail and M. Ramli, “Engineering properties of treated recycled concrete aggregate (RCA) for structural applications”, Construction and Building Materials, Vol. 44, pp. 464–476, https://doi.org/10.1016/j.conbuildmat.2013.03.014, (2013)

V. W. Y. Tam, C. M. Tam, and Y. Wang, “Optimization on proportion for recycled aggregate in concrete using two-stage mixing approach”, Construction and Building Materials, Vol. 21(10), pp. 1928–1939, https://doi.org/10.1016/j.conbuildmat.2006.05.040, (2007)

A. M. Grabiec, J. Klama, D. Zawal, and D. Krupa, “Modification of recycled concrete aggregate by calcium carbonate biodeposition”, Construction and Building Materials, Vol. 34, pp. 145–150, https://doi.org/10.1016/j.conbuildmat.2012.02.027, (2012)

R. V. Silva, R. Neves, J. De Brito, and R. K. Dhir, “Carbonation behaviour of recycled aggregate concrete”, Cement and Concrete Composites, Vol. 62, pp. 22–32, https://doi.org/10.1016/j.cemconcomp.2015.04.017, (2015)

B. Zhan, C. S. Poon, Q. Liu, S. Kou, and C. Shi, “Experimental study on CO2 curing for enhancement of recycled aggregate properties”, Construction and Building Materials, Vol. 67, pp. 3–7, https://doi.org/10.1016/j.conbuildmat.2013.09.008, (2014)

D. Xuan, B. Zhan, and C. S. Poon, “Assessment of mechanical properties of concrete incorporating carbonated recycled concrete aggregates”, Cement and Concrete Composites, Vol. 65, pp. 67–74, https://doi.org/10.1016/j.cemconcomp.2015.10.018, (2016)

S. C. Kou, B. J. Zhan, and C. S. Poon, “Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates”, Cement and Concrete Composites, Vol. 45, pp. 22–28, https://doi.org/10.1016/j.cemconcomp.2013.09.008, (2014)

J. Zhang, C. Shi, Y. Li, X. Pan, C. S. Poon, and Z. Xie, “Influence of carbonated recycled concrete aggregate on properties of cement mortar”, Construction and Building Materials, Vol. 98, pp. 1–7, https://doi.org/10.1016/j.conbuildmat.2015.08.087, (2015)

M. Thiery, P. Dangla, P. Belin, G. Habert, and N. Roussel, “Carbonation kinetics of a bed of recycled concrete aggregates: A laboratory study on model materials”, Cement and Concrete Research, Vol. 46, pp. 50–65, https://doi.org/10.1016/j.cemconres.2013.01.005, (2013)

V. W. Y. Tam, K. Wang, and C. M. Tam, “Assessing relationships among properties of demolished concrete, recycled aggregate and recycled aggregate concrete using regression analysis”, Journal of Hazardous Materials, Vol. 152(2), pp. 703–714, https://doi.org/10.1016/j.jhazmat.2007.07.061, (2008)

L. Tang, P. Utgenannt, A. Lindvall, and D. Boubitsas, “Validation of models and test methods for assessment of durability of concrete structures in the road environment”, CBI Betonginstitutet AB, P802606, Stockholm (Sweden), 2010

S. Ismail and M. Ramli, “Mechanical strength and drying shrinkage properties of concrete containing treated coarse recycled concrete aggregates”, Construction and Building Materials, Vol. 68, pp. 726–739, https://doi.org/10.1016/j.conbuildmat.2014.06.058, (2014)

D. Xuan, B. Zhan, and C. S. Poon, “Assessment of mechanical properties of concrete incorporating carbonated recycled concrete aggregates”, Cement and Concrete Composites, Vol. 65, pp. 67–74, https://doi.org/10.1016/j.cemconcomp.2015.10.018, (2016)

A. Radević, I. Despotović, D. Zakić, M. Orešković, and D. Jevtić, “Influence of acid treatment and carbonation on the properties of recycled concrete aggregate”, Chemical Industry and Chemical Engineering Quarterly, Vol. 24(1), pp. 23–30, https://doi.org/10.2298/CICEQ161202014R, (2018)