Kavita Nair
Independent Researcher
India
Abstract
Self-Compacting Concrete (SCC) is a highly flowable concrete that can consolidate under its own weight without segregation or bleeding, offering advantages in construction productivity and quality. With growing environmental concerns and depletion of natural aggregates, the use of recycled aggregates (RA) from construction and demolition waste has become an important sustainable alternative. This study investigates the effect of incorporating recycled aggregates in SCC on its fresh and hardened properties, including workability, compressive strength, tensile strength, and durability. Experimental mixes with varying proportions of RA replacing natural aggregates were prepared and tested. The results show that SCC with recycled aggregates exhibits satisfactory performance in terms of flowability and mechanical properties, although with some reduction in strength compared to conventional SCC. Optimal RA content and mix design adjustments are discussed to achieve balance between sustainability and performance. This study demonstrates the feasibility of using recycled aggregates in SCC, contributing to sustainable construction practices.
Keywords Self-Compacting Concrete, Recycled Aggregates, Workability, Compressive Strength, Sustainable Construction.
REFERENCES
Grdić, Z. J., Topličić‑Ćurčić, G. A., Despotović, I. M., & Ristić, N. S. (2010). Properties of self‑compacting concrete prepared with coarse recycled concrete aggregate. Construction and Building Materials, 24(7), 1129–1133. scholar.google.com+15ijstr.org+15tandfonline.com+15
Djelloul, O. K., & Menadi, B. (2010). Performance of self‑compacting concrete made with coarse and fine recycled concrete aggregates and ground granulated blast‑furnace slag. [Conference/Journal] scholar.google.com+1scholar.google.com+1
Nili, M., Sasanipour, H., & Aslani, F. (2012). The effect of fine and coarse recycled aggregates on fresh and mechanical properties of self‑compacting concrete. Materials, 12. tandfonline.com+15scholar.google.com+15ijstr.org+15
Pereira, P., Evangelista, L., & de Brito, J. (2012). The effect of superplasticizers on the mechanical performance of concrete made with fine recycled concrete aggregates. Cement and Concrete Composites, 34(9), 1044–1052. ijstr.org
Kou, S. C., & Poon, C. S. (2011). Influence of recycled aggregates on long‑term mechanical properties and pore size distribution of concrete. Cement and Concrete Composite, 33, 286–291. researchgate.net+4ijstr.org+4scholar.google.com+4
Kapoor, K., Singh, S. P., & Singh, B. (2013). Durability of self‑compacting concrete made with recycled concrete aggregates and mineral admixtures. Construction and Building Materials. sciencedirect.com+6scholar.google.com+6ijstr.org+6
Sheen, Y. N., Wang, H. Y., Juang, Y. P., & Le, D. H. (2013). Assessment on the engineering properties of ready‑mixed concrete using recycled aggregates. Construction and Building Materials, 45, 298–305. ijstr.org
Omrane, M., Kenai, S., Kadri, E. H., & Aït‑Mokhtar, A. (2017). Performance and durability of self‑compacting concrete using recycled concrete aggregates and natural pozzolan. Journal of Cleaner Production, 165, 415–430. scholar.google.com+1ijstr.org+1
Gesoglu, M., Güneyisi, E., Öz, H. Ö., Taha, I., & Yasemin, M. T. (2015). Failure characteristics of self‑compacting concretes made with recycled aggregates. Construction and Building Materials, 98, 334–344. scholar.google.com+15ijstr.org+15mdpi.com+15
Silva, Y. F., Robayo, R. A., Mattey, P. E., & Delvasto, S. (2016). Properties of self‑compacting concrete on fresh and hardened state with masonry residue and recycled concrete. Construction and Building Materials, 124, 639–644. ijstr.org
Younis, K. H., & Latif, S. (2019). Mechanical performance of self‑compacting concrete incorporating recycled aggregate: A review. International Journal of Scientific & Technology Research, 8(10), Oct. 2019. ijstr.org
