Keywords
Flexural Strength, Natural Coarse Aggregate (NCA)
Recycled Coarse Aggregate (RCA)
Sustainable Construction
Two-Phase Analysis
Waste Management
How to Cite
Abstract
The construction industry faces mounting challenges in managing construction and demolition (C&D) waste, which places pressure on landfills and depletes natural resources. This study evaluates the potential of Recycled Coarse Aggregate (RCA), sourced from crushed road pavements, as a full replacement for Natural Coarse Aggregate (NCA) in concrete. Using an ACI design mix and two-phase analysis, concrete samples incorporating 100% RCA (19 mm nominal size) were tested for flexural strength. Results indicate that RCA achieves comparable strength to NCA, demonstrating its viability for structural applications, particularly in road construction. This research contributes to sustainable construction by providing evidence that RCA can reduce reliance on natural aggregates and mitigate C&D waste, offering a practical pathway toward more environmentally responsible infrastructure development.
References
Adams, M. P., Fu, T., Cabrera, A. G., Morales, M., Ideker, J. H., & Isgor, O. B. (2016). Cracking susceptibility of concrete made with coarse recycled concrete aggregates. Construction and Building Materials, 102, 802–810. https://doi.org/10.1016/j.conbuildmat.2015.11.022
Alqarni, A. S., Abbas, H., Al-Shwikh, K. M., & Al-Salloum, Y. A. (2021). Treatment of recycled concrete aggregate to enhance concrete performance. Construction and Building Materials, 307, 124960. https://doi.org/10.1016/j.conbuildmat.2021.124960
Bamigboye, G. O., Ademola, D., Kareem, M., Orogbade, B., Odetoyan, A., & Adeniyi, A. (2022). Durability assessment of recycled aggregate in concrete production. In The Structural Integrity of Recycled Aggregate Concrete Produced with Fillers and Pozzolans (pp. 445–467). Elsevier. https://doi.org/10.1016/B978-0-12-824105-9.00010-X
Behera, M., Bhattacharyya, S. K., Minocha, A. K., Deoliya, R., & Maiti, S. (2014). Recycled aggregate from C&D waste & its use in concrete – A breakthrough towards sustainability in construction sector: A review. Construction and Building Materials, 68, 501–516. https://doi.org/10.1016/j.conbuildmat.2014.07.003
Estrada, L. J. G., Nakatani, J., Hayashi, T., & Fujita, T. (2023). Life cycle assessment of construction and demolition waste management based on waste generation projections of residential buildings in Metro Manila, the Philippines. Cleaner Waste Systems, 4, 100076. https://doi.org/10.1016/j.clwas.2023.100076
Fanijo, E. O., Kolawole, J. T., Babafemi, A. J., & Liu, J. (2023). A comprehensive review on the use of recycled concrete aggregate for pavement construction: Properties, performance, and sustainability. Cleaner Materials, 9, 100199. https://doi.org/10.1016/j.clema.2023.100199
Fathifazl, G., Abbas, A., Razaqpur, A. G., Isgor, O. B., Fournier, B., & Foo, S. (2009). New mixture proportioning method for concrete made with coarse recycled concrete aggregate. Journal of Materials in Civil Engineering, 21(10), 601–611. https://doi.org/10.1061/(ASCE)0899-1561(2009)21:10(601)
Fernandes, B., Carré, H., Mindeguia, J.-C., Perlot, C., & La Borderie, C. (2022). Spalling behaviour of concrete made with recycled concrete aggregates. Construction and Building Materials, 344, 128124. https://doi.org/10.1016/j.conbuildmat.2022.128124
Fernandes, B., Khodeir, M., Perlot, C., Carré, H., Mindeguia, J.-C., & La Borderie, C. (2023). Durability of concrete made with recycled concrete aggregates after exposure to elevated temperatures. Materials and Structures, 56(1), 25. https://doi.org/10.1617/s11527-023-02111-1
Jagadesh, P., Karthik, K., Kalaivani, P., Karalar, M., Althaqafi, E., Madenci, E., & Özkılıç, Y. O. (2024). Examining the influence of recycled aggregates on the fresh and mechanical characteristics of high-strength concrete: a comprehensive review. Sustainability, 16(20), 9052. https://doi.org/10.3390/su16209052
Kang, M., & Weibin, L. (2018). Effect of the aggregate size on strength properties of recycled aggregate concrete. Advances in Materials Science and Engineering, 2018(1), 2428576. https://doi.org/10.1155/2018/2428576
Katerusha, D. (2022). Investigation of the optimal price for recycled aggregate concrete — an experimental approach. Journal of Cleaner Production, 365, 132857. https://doi.org/10.1016/j.jclepro.2022.132857
Ma, Q., Duan, Z., Wang, J., Yin, G., & Li, X. (2024). Frost resistance and improvement techniques of recycled concrete: a comprehensive review. Frontiers in Materials, 11, 1493191. https://doi.org/10.3389/fmats.2024.1493191
Mandal, A., & Shiuly, A. (2025). Exploring mechanical characteristics of recycled concrete aggregates from demolition waste: advancements, challenges, and future directions for sustainable construction: a review. Discover Civil Engineering, 2(1), 33. https://doi.org/10.1007/s44290-025-00185-0
Padmini, A. K., Ramamurthy, K., & Mathews, M. S. (2009). Influence of parent concrete on the properties of recycled aggregate concrete. Construction and Building Materials, 23(2), 829–836. https://doi.org/10.1016/j.conbuildmat.2008.03.006
Pereira, M. M. L., Silva , C., Capuzzo, V. M. S., & De Brito, J. (2023). Concrete produced with recycled concrete aggregate exposed to treatment methods. Case Studies in Construction Materials, 18, e01938. https://doi.org/10.1016/j.cscm.2023.e01938
Thomas, J., Thaickavil, N. N., & Wilson, P. M. (2018). Strength and durability of concrete containing recycled concrete aggregates. Journal of Building Engineering, 19, 349–365. https://doi.org/10.1016/j.jobe.2018.05.007
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