The Application of Recycled Aggregate Concrete in Sustainable Civil Engineering
DOI:
https://doi.org/10.54097/qqa6b080Keywords:
Recycled aggregate concrete, sustainable construction, material properties, structural performance, environmental benefits, performance optimizationAbstract
As the global construction industry accelerates its transformation toward low-carbon and circular development, the demand for eco-friendly and renewable construction materials has risen sharply. Recycled aggregate concrete (RAC), which is manufactured by replacing natural coarse and fine aggregates with crushed construction and demolition (C&D) waste, has become one of the most promising sustainable alternatives to conventional ordinary concrete. This paper systematically explores the fundamental material characteristics, structural mechanical performance, practical engineering application scenarios, and comprehensive environmental benefits of recycled aggregate concrete. Meanwhile, it comprehensively analyzes the core technical bottlenecks restricting its large-scale promotion, including unstable material quality, decreased mechanical strength, and poor durability performance caused by residual adhered mortar on recycled aggregates. This study systematically summarizes three mainstream performance enhancement technical systems: optimized concrete mix proportion design, physical and chemical modification treatment of recycled aggregates, and innovative advanced curing and processing technologies. Typical engineering case studies are supplemented to elaborate on the practical application effects of RAC in building structural components, road pavement engineering, and non-load-bearing precast concrete members. Furthermore, the industrial development barriers such as imperfect unified industry standards, insufficient construction experience, and low market recognition are discussed in depth, and targeted suggestions for future academic research and engineering popularization are proposed. The research results of this paper clarify the application potential and development value of RAC, aiming to provide theoretical support and technical reference for the large-scale application of recycled aggregate concrete and further promote the high-quality sustainable development of modern civil engineering.
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References
[1] International Energy Agency. (2021). Global Status Report for Buildings and Construction. IEA.
[2] Poon, C. S., & Chan, D. (2007). The use of recycled aggregate in concrete in Hong Kong. Resources, Conservation and Recycling, 50(3), 293–305. https://doi.org/10.1016/j.resconrec.2006.06.005
[3] Tam, V. W. Y., Gao, X. F., & Tam, C. M. (2005). Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach. Cement and Concrete Research, 35(6), 1195–1203. https://doi.org/10.1016/j.cemconres.2004.10.026
[4] Hansen, T. C. (1992). Recycling of Demolished Concrete and Masonry. E & FN Spon.
[5] Topçu, I. B., & Şengel, S. (2004). Properties of concretes produced with waste concrete aggregates. Cement and Concrete Research, 34(8), 1307–1312. https://doi.org/10.1016/j.cemconres.2003.12.013
[6] Etxeberria, M., Vázquez, E., Marí, A., & Barra, M. (2007). Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete. Cement and Concrete Research, 37(5), 735–742. https://doi.org/10.1016/j.cemconres.2006.12.002
[7] Silva, R. V., de Brito, J., & Dhir, R. K. (2015). Carbonation behavior of recycled aggregate concrete. Construction and Building Materials, 84, 144–156. https://doi.org/10.1016/j.conbuildmat.2015.03.018
[8] Salem, R. M., & Burdette, E. G. (1998). Role of chemical and mineral admixtures on properties of recycled aggregate concrete. ACI Materials Journal, 95(5), 558–563. https://doi.org/10.14358/PERS.95.5.558
[9] Kou, S. C., & Poon, C. S. (2009). Properties of concrete prepared with recycled aggregates and fly ash. Cement and Concrete Composites, 31(5), 345–351. https://doi.org/10.1016/j.cemconcomp.2009.03.005
[10] Fathifazl, G., Razaqpur, A. G., Isgor, O. B., Abbas, A., Fournier, B., & Foo, S. (2009). Creep and drying shrinkage characteristics of concrete produced with coarse recycled concrete aggregates. Cement and Concrete Composites, 31(7), 518–527. https://doi.org/10.1016/j.cemconcomp.2009.05.001
[11] Akbarnezhad, A., Ong, K. C. G., Zhang, M. H., & Tam, C. T. (2011). Microwave-assisted beneficiation of recycled concrete aggregates. Construction and Building Materials, 25(8), 3469–3479. https://doi.org/10.1016/j.conbuildmat.2011.03.038
[12] Spaeth, N., & Mielich, O. (2011). Influence of surface treatment of recycled aggregates on the properties of recycled aggregate concrete. Construction and Building Materials, 25(11), 4161–4168. https://doi.org/10.1016/j.conbuildmat.2011.04.057
[13] Zhan, B., Poon, C. S., & Kou, S. C. (2013). Experimental study on CO₂ curing of recycled aggregate concrete. Cement and Concrete Composites, 36, 101–108. https://doi.org/10.1016/j.cemconcomp.2012.11.003
[14] De Muynck, W., De Belie, N., & Verstraete, W. (2010). Microbial carbonate precipitation in construction materials: A review. Ecological Engineering, 36(2), 118–136. https://doi.org/10.1016/j.ecoleng.2009.03.015
[15] Gonzalez-Fonteboa, B., & Martinez-Abella, F. (2008). Shear strength of recycled concrete beams. Construction and Building Materials, 22(4), 888–897. https://doi.org/10.1016/j.conbuildmat.2007.02.012
[16] Müller, A., & Hansen, E. (2009). Sustainable Construction with Recycled Aggregates. Ernst & Sohn.
[17] Van der Sloot, H. A., & van Zomeren, A. (2009). Recycled Aggregates in Road Construction. Rijkswaterstaat.
[18] Soutsos, M. N., Tang, K., & Millard, S. G. (2011). Use of recycled demolition aggregate in precast concrete blocks. Construction and Building Materials, 25(1), 25–31. https://doi.org/10.1016/j.conbuildmat.2010.06.028
[19] Chen, D., & Miller, S. A. (2017). Carbon footprint of recycled aggregate concrete. Journal of Cleaner Production, 167, 1122–1131. https://doi.org/10.1016/j.jclepro.2017.08.213
[20] De Brito, J., & Agrela, F. (2017). Recycled Aggregate Concrete. Springer. https://doi.org/10.1007/978-3-319-52288-5
[21] United Nations Environment Programme. (2017). Global Status Report on Sustainable Buildings and Construction. UNEP.
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