Authors: Shkar Latif1 & Bayan S. Al-Numan 2 & Esamaddin Mulapeer 3
1Civil Engineering Department, Facultry of engineering, Tishk International University, Erbil, Iraq
2Civil Engineering Department, Facultry of engineering, Tishk International University, Erbil, Iraq
3Civil Engineering Department, Facultry of engineering, Tishk International University, Erbil, Iraq
Abstract: It is known that self-compacted concrete SCC is used to serve the construction of concrete structures with complicated shapes having congested reinforcements. Sustainable SCC is produced now by recycled concrete aggregates RCA from construction wastes. To improve the strength of this concrete, with a further eye on sustainability, recycled steel fibers RSF is utilized as reinforcing to the SCC. In this work, 12 SCC mixes were prepared with different mixing proportions. Cement is replaced with 5% silica fume. RCA replacement percentages were 25%, 50%, and 100% RCA. RSF was used with 0.50%, 0.75% by volume of concrete. The slump flow, J-Ring, and V-Funnel tests are performed to estimate the rheological behavior of all concrete mixtures. Results indicate that RCA/RSF SCC passed the slump flow, J-Ring tests, and overpassed V-Funnel test requirements satisfactorily.
Keywords: Self-Compacting Concrete, Recycled Aggregate (RCA), Recycled Steel Fiber (RSF), Silica Fume, And Fresh Properties
Download the PDF Document
Abed, M., & Nemes, R. (2019). Fresh properties of the self-compacting high-performance concrete using recycled concrete aggregate. Építöanyag (Online)(1), 18-23.
Al-Numan, B. S., Razhan Shahab Ahmed. (2019/12). Investigation on Fresh Properties of Concrete Made with Recycled Lightweight Aggregates from Demolished Bricks. Eurasian Journal of Science & Engineering, 5(1), 48 – 55.
Bibm, C., & Ermco, E. (2005). EFNARC (2005) The European guidelines for self-compacting concrete. Specification, Production and Use.
CarroYLόpez, D., GonzálezYFonteboa, B., MartínezYAbella, F., GonzálezYTaboada, I., de Britob, J., & VarelaYPugaa, F. (2017). Proportioning, microstructure and fresh properties of selfYcompacting concrete with recycled sand. Procedia Engineering, 171, 645-657.
Debieb, F., Courard, L., Kenai, S., & Degeimbre, R. (2009). Roller compacted concrete with contaminated recycled aggregates. Construction and Building Materials, 23(11), 3382-3387.
Groli, G., Pérez Caldentey, A., & Soto, A. G. (2014). Cracking performance of SCC reinforced with recycled fibres–an experimental study. Structural Concrete, 15(2), 136-153.
Hama, S. M., & Hilal, N. N. (2017). Fresh properties of self-compacting concrete with plastic waste as partial replacement of sand. International Journal of Sustainable Built Environment, 6(2), 299-308.
Itsubo, N., Sakagami, M., Washida, T., Kokubu, K., & Inaba, A. (2004). Weighting across safeguard subjects for LCIA through the application of conjoint analysis. The International Journal of Life Cycle Assessment, 9(3), 196-205.
Liew, K., & Akbar, A. (2020). The recent progress of recycled steel fiber reinforced concrete. Construction and Building Materials, 232, 117232.
Mastali, M., & Dalvand, A. (2016). Use of silica fume and recycled steel fibers in self-compacting concrete (SCC). Construction and Building Materials, 125, 196-209.
Mastali, M., & Dalvand, A. (2017). Fresh and hardened properties of self-compacting concrete reinforced with hybrid recycled steel–polypropylene fiber. Journal of Materials in Civil Engineering, 29(6), 04017012.
Matest. (2017). SCC Testing Apparatus. Retrieved from http://www.matest.com/en/concrete-testing-equipment/scc-testing-apparatus/
Mathew, A. V. P. (2015). A study on the self compacting properties of recycled concrete incorporating a new mix proportioning method.
Mermerdaş, K., Mulapeer, E. S., & Oleiwi, S. M. (2019). Effect of glass fiber addition on the strength properties and pore structure of fly ash based Geopolymer composites. Eskişehir Technical University Journal of Science and Technology A-Applied Sciences and Engineering, 20(4), 427-435.
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.
Purushothaman, R., & Mani, S. (2014). Studies on fresh and hardened properties of recycled aggregate concrete with quarry dust. ACI Materials Journal, 111(3).
Revathi, P., Selvi, R., & Velin, S. (2013). Investigations on fresh and hardened properties of recycled aggregate
self-compacting concrete. Journal of the Institution of Engineers (India): Series A, 94(3), 179-185.
Safiuddin, M., Salam, M., & Jumaat, M. Z. (2011). Effects of recycled concrete aggregate on the fresh properties of self-consolidating concrete. Archives of Civil and Mechanical Engineering, 11(4), 1023-1041.
Silva, Y. F., Robayo, R. A., Mattey, P. E., & Delvasto, S. (2016). Properties of self-compacting concrete on fresh and hardened with residue of masonry and recycled concrete. Construction and Building Materials, 124, 639-644.
Simalti, A., & Singh, A. (2019). Mix proportioning of recycled steel fiber reinforced self compacting concrete. Paper presented at the Proceeding of International UKIERI Concrete Congress.
Younis, K. H., Ahmed, F. S., & Najim, K. B. (2018). Self-Compacting Concrete Reinforced with Steel Fibers from Scrap Tires: Rheological and Mechanical Properties. Paper presented at the Int. Eng. Conf.
Younis, K. H., & Latif, S. Mechanical performance of self-compacting concrete incorporating recycled aggregate: A.
Younis, K. H., & Pilakoutas, K. (2013). Strength prediction model and methods for improving recycled aggregate concrete. Construction and Building Materials, 49, 688-701.