Influence of Recycled Aggregate and Steel Fiber on the Compressive Strength of Concrete: A Comparative Study of NAC and RAC Mixes

Volume: 10 | Issue: 02 | Year 2024 | Subscription
International Journal of Concrete Technology
Received Date: 10/14/2024
Acceptance Date: 10/26/2024
Published On: 2024-10-29
First Page: 11
Last Page: 16

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By: Bharti Ahirwar and Harsh Rathore

1Research Scholar, Department of Civil Engineering, Sanjeev Agarwal Global Educational University, Bhopal, Madhya Pradesh, India
2Associate Professor, Department of Civil Engineering, Sanjeev Agarwal Global Educational University, Bhopal, Madhya Pradesh, India

Abstract

Abstract

This study evaluates the impact of varying proportions of recycled concrete aggregate (RCA) and steel fiber content on the compressive strength of concrete mixes. Five concrete mixes were prepared with different percentages of RCA (0%, 25%, 50%, 75%, and 100%), using a constant water-to-cement ratio (w/c) of 0.55. Additionally, each mix included variations with 1% and 2% steel fiber by volume, corresponding to 78.5 kg/m³ and 157 kg/m³, respectively. The compressive strength of each mix was tested at 7 and 28 days. The results indicate that, as the RCA percentage increases, compressive strength decreases compared to the natural aggregate concrete (NAC). However, the incorporation of steel fibers enhances the compressive strength in both NAC and RAC mixes. For instance, NAC improved from 25.6 N/mm² without fibers to 26.8 N/mm² with 2% fibers. Similarly, RAC with 25% RCA showed a 28-day strength improvement from 23.8 N/mm² to 24.9 N/mm² with 2% fiber. Despite the decline in strength with higher RCA content, the study highlights the potential of steel fibers to mitigate this reduction, making RAC a viable option for sustainable construction.

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Citation:

How to cite this article: Bharti Ahirwar and Harsh Rathore, Influence of Recycled Aggregate and Steel Fiber on the Compressive Strength of Concrete: A Comparative Study of NAC and RAC Mixes. International Journal of Concrete Technology. 2024; 10(02): 11-16p.

How to cite this URL: Bharti Ahirwar and Harsh Rathore, Influence of Recycled Aggregate and Steel Fiber on the Compressive Strength of Concrete: A Comparative Study of NAC and RAC Mixes. International Journal of Concrete Technology. 2024; 10(02): 11-16p. Available from:https://journalspub.com/publication/uncategorized/article=12963
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Refrences:

  1. Chini AR, Monteiro R. Use of recycled concrete aggregate as a base course. ASC Proceedings of the 35th Annual Conference, California: California Polytechnic State University- San Luis Obispo; 1999. pp. 307–318.
  2. Chini AR, Kuo S-S, Armaghani JM, Duxbury JP. Test of recycled concrete aggregate in accelerated test track. J Transp Eng. 2001;127(6):486–492.
  3. ACI 363R. State of the art Report on High-Strength Concrete. Detroit: American Concrete Institute; 1992.
  4. Chen A, Xia X, Zhang Q, Wu M. The meso-level numerical experiment research of the mechanics properties of recycled concrete. J Softw. 2012;7(9):1932–1940.
  5. Katz A. Treatments for the improvement of recycled aggregate. J Mater Civ Eng. 2004;16(6):597–603.
  6. Buyle-Bodin and Hadijieva-Zaharieva. Influence of industrially produced recycled aggregates on flow properties of concrete. Mater Struct. 2002;35:504–509.
  7. Vasconcelos, Lourenco, Camoes, Martins, and Cunha. Evaluation of performance of recycled textile fibers in the mechanical behaviour of gypsum and cork composite material. Cem Concr Compos. 2015;58:29–39.
  8. Camoes, Aguiar and Jalali. Durability of low cost high performance concrete”, International Ash Utilization Symposium, University of Kentucky; 2003. Paper No. 43.
  9. Zhou C, Chen Z. Mechanical properties of recycled aggregate concrete made with different types of coarse aggregate. Constr Build Mater. 2017;134:497–506.
  10. Cieo Laneyrie, Anne-Lise Beaucour, Mark F. Green, Ronan L. Hebert, Beatricve Ledesert, Albert Noumowe. Constr Build Mater.  2018;111:308–178.
  11. Zega CJ, Di Maio AA. Recycled concrete made with different natural coarse aggregates exposed to high temperature. Constr Build Mater. 2009;23:2047–2052.
  12. Varona, Baeza, Bru and Ivorra. Influence of high temperature on the mechanical prosperities of hybrid fibre reinforcednormal and high strength concrete. Constr Build Mater. 2018;159:73–82.
  13. Vaishali, Rao S. Strength and permeability characteristics of fiber reinforced high performance concrete with recycled aggregate. Asian J Civ Eng. 2012;12(1):55–77.
  14. Chen, He, Yang, Chen, and Guo. Compressive behavior of steel fiber reinforced recycled aggregate concrete after exposure to elevated temperatures. Constr Build Mater. 2014;71:1–15.
  15. de Schepper M, van Den Heede P, Driessche I, Debelie N. Life cycle assessment of completely recyclable concrete” Materials. 2014;7:6010–6027.
  16. Ahmadi M, Farzin S, Hassani A, Motamedi M. Mechanical properties of the concrete containing recycle fibers and aggregates. Constr Build Mater. 2017;144:392–398.
  17. Bangi MG, Horiguchi T. Effect of fiber typeand geometry on maximum pore pressure in fibre-reinforced high strength concrete at elevated temperatures. Cem Concr Res. 2012;42:459–466.
  18. Wang R, Meyer C. Performance of cement mortar made with recycled high impact polystyrene. Cem Concr Compos. 2012;3:975–981.
  19. Sarhat SR, Sherwood EG. The residual mechanical response of recycled aggregate concrete after exposure to elevated temperatures. J Mater Civ Eng. 2012;1943–5533.
  20. Salem and Burdette. Role of chemical and mineral admixtures on physical properties and frost-resistance of recycled aggregate concrete. ACI Mater J. 1998;95(5):558–563.
  21. Siddique S, Shrivastava S, Chauhary S, Gupta T. Strength and impact resistance properties of concrete containing fine bone china ceramic aggregate. Constr Build Mater. 2018;169:289–298.

 

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