Mechanical Properties of Sustainable Concrete Reinforced with Micro Steel Fibers

Authors

  • Sura F. Alkhafaji Department of Construction and Projects, Mustansiriyah University, Baghdad, Iraq
  • Rawya A. Abduljabbar Department of Construction and Projects, Mustansiriyah University, Baghdad, Iraq
  • Samer S. Abdulhussein Civil Engineering Department, Engineering College, Mustansiriyah University, Baghdad, Iraq
  • Hussain D. Hussain Civil Engineering Department, Engineering College, Mustansiriyah University, Baghdad, Iraq
  • Hajer R. Khalid Department of Construction and Projects, Mustansiriyah University, Baghdad, Iraq
Volume: 15 | Issue: 5 | Pages: 27436-27444 | October 2025 | https://doi.org/10.48084/etasr.12928

Received: 27 June 2025 | Revised: 25 July 2025 and 4 August 2025 | Accepted: 14 August 2025 | Online: 19 August 2025


Corresponding author: Sura F. Alkhafaji

Abstract

One of the most important solutions for producing sustainable concrete is the utilization of old concrete as coarse aggregate. This study evaluates the full replacement of coarse aggregate with recycled aggregate and the impact of micro steel fibers on the mechanical properties of concrete using a combination of non-destructive and destructive tests. The deployed methodology includes five concrete mixes incorporating 0%, 0.4%, 0.6%, 0.8%, and 1% micro steel fibers by volume to produce sustainable concrete reinforced with fibers. The non-destructive tests examined density, Ultrasonic Pulse Velocity (UPV), and dynamic modulus of elasticity, while the destructive tests examined compressive strength, static modulus of elasticity, splitting tensile strength, and flexural strength. The results demonstrate the possibility of adopting zero-cost coarse aggregate produced from old concrete as a sustainable aggregate. Furthermore, the mechanical properties of concrete are enhanced by adding micro steel fibers. The optimal performance was observed at 0.8 % fibers with maximum improvements of 15 % in compressive strength, 39.2 % in splitting tensile strength, and approximately 85 % in flexural strength at 28 % days. The UPV and density values exhibited strong correlations with the compressive strength. Finally, the findings of this study support that the recycled aggregate and micro steel fibers can be used to produce sustainable concrete for modern constructions.

Keywords:

compressive strength, concrete mixture, flexural strength, micro-steel fibers, tensile strength

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References

S. R. R. T. Prathipati and C. B. K. Rao, "A Study on the Uniaxial Behavior of Hybrid Graded Fiber Reinforced Concrete with Glass and Steel Fibers," Materials Today: Proceedings, vol. 32, pp. 764–770, 2020.

S. Cao, G. Xue, and E. Yilmaz, "Flexural Behavior of Fiber Reinforced Cemented Tailings Backfill Under Three-Point Bending," IEEE Access, vol. 7, pp. 139317–139328, 2019.

A. M. Neville, Properties of concrete, Ed. 5th. Noida: Pearson, 2013.

J. Sanjeev and K. J. N. Sai Nitesh, "Study on the Effect of Steel and Glass Fibers on Fresh and Hardened Properties of Vibrated Concrete and Self-compacting Concrete," Materials Today: Proceedings, vol. 27, pp. 1559–1568, 2020.

A. Hassan, A. ElNemr, L. Goebel, and C. Koenke, "Effect of Hybrid Polypropylene Fibers on Mechanical and Shrinkage Behavior of Alkali-activated Slag Concrete," Construction and Building Materials, vol. 411, Jan. 2024, Art. no. 134485.

W. Ahmad et al., "Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete," Materials, vol. 13, no. 5, Feb. 2020, Art. no. 1075.

A. Rana, "Some Studies on Steel Fiber Reinforced Concrete," International Journal of Emerging Technology and Advanced Engineering, vol. 3, no. 1, pp. 120–127, Jan. 2013.

A. A. Jhatial, S. Sohu, N.-K. Bhatti, M. T. Lakhiar, and R. Oad, "Effect of Steel Fibres on the Compressive and Flexural Strength of Concrete," International Journal of Advanced and Applied Sciences, vol. 5, no. 10, pp. 16–21, Oct. 2018.

N. Kachouh, H. El-Hassan, and T. El-Maaddawy, "Effect of Steel Fibers on the Performance of Concrete Made with Recycled Concrete Aggregates and Dune Sand," Construction and Building Materials, vol. 213, pp. 348–359, July 2019.

R. Prakash et al., "Effect of Steel Fiber on the Strength and Flexural Characteristics of Coconut Shell Concrete Partially Blended with Fly Ash," Materials, vol. 15, no. 12, June 2022, Art. no. 4272.

O. Karahan, E. Ozbay, C. D. Atis, M. Lachemi, and K. M. A. Hossain, "Effects of Milled Cut Steel Fibers on the Properties of Concrete," KSCE Journal of Civil Engineering, vol. 20, no. 7, pp. 2783–2789, Nov. 2016.

Z. Guo, "Experimental Study on the Effect of Volume Ratio of Steel Fiber on Mechanical Properties of Ceramsite Concrete," Open Access Library Journal, vol. 09, no. 04, pp. 1–12, 2022.

R. Fediuk, M. A. Mosaberpanah, and V. Lesovik, "Development of Fiber Reinforced Self-Compacting Concrete (FRSCC): Towards an Efficient Utilization of Quaternary Composite Binders and Fibers," Advances in concrete construction, vol. 9, no. 4, pp. 387–395, Apr. 2020.

K. Murali and T. Meena, "An Experimental Investigation on the Mechanical Properties of Steel Fiber Reinforced Geopolymer Concrete," Advances in concrete construction, vol. 12, no. 6, pp. 499–505, Dec. 2021.

P. S. Song and S. Hwang, "Mechanical Properties of High-strength Steel Fiber-reinforced Concrete," Construction and Building Materials, vol. 18, no. 9, pp. 669–673, Nov. 2004.

J. Thomas and A. Ramaswamy, "Mechanical Properties of Steel Fiber-Reinforced Concrete," Journal of Materials in Civil Engineering, vol. 19, no. 5, pp. 385–392, May 2007.

M. A. Shallal and S. R. Al-Owaisy, "Strength and Elasticity of Steel Fiber Reinforced Concrete at High Temperatures," Journal of Engineering and Development, vol. 11, no. 2, pp. 125–133, Sept. 2007.

H. K. Shehab El-Din, H. A. Mohamed, M. A. E.-H. Khater, and S. Ahmed, "Effect of Steel Fibers on Behavior of Ultra High Performance Concrete," in First International Interactive Symposium on UHPC, pp. 1–10, July 2016.

J. Ahmad, Z. Zhou, and A. F. Deifalla, "Steel Fiber Reinforced Self-Compacting Concrete: A Comprehensive Review," International Journal of Concrete Structures and Materials, vol. 17, no. 1, Oct. 2023, Art. no. 51.

K. H. Younis, F. F. Jirjees, H. K. Yaba, and S. M. Maruf, "Experimental Study on Impact Resistance of Concrete Containing Steel Fibers," Key Engineering Materials, vol. 872, pp. 1–6, Jan. 2021.

F. Germano, G. Tiberti, and G. Plizzari, "Post-Peak Fatigue Performance of Steel Fiber Reinforced Concrete Under Flexure," Materials and Structures, vol. 49, no. 10, pp. 4229–4245, Oct. 2016.

I. Ahmad, L. Qing, S. Khan, G. Cao, N. Ijaz, and R. Mu, "Experimental Investigations on Fracture Parameters of Random and Aligned Steel Fiber Reinforced Cementitious Composites," Construction and Building Materials, vol. 284, May 2021, Art. no. 122680.

F. Bencardino, L. Rizzuti, G. Spadea, and R. N. Swamy, "Experimental Evaluation of Fiber Reinforced Concrete Fracture Properties," Composites Part B: Engineering, vol. 41, no. 1, pp. 17–24, Jan. 2010.

B. Gebretsadik, K. Jadidi, V. Farhangi, and M. Karakouzian, "Application of Ultrasonic Measurements for the Evaluation of Steel Fiber Reinforced Concrete," Engineering, Technology & Applied Science Research, vol. 11, no. 1, pp. 6662–6667, Feb. 2021.

A. Krishna et al., "Mechanical Properties of High-strength Micro Steel Fibre Reinforced Concrete Subjected to High Temperatures," Materials Today: Proceedings, Nov. 2023, Art. no. S221478532305126X.

F. H. Hanafi, S. Shahidan, S. Ramasamy, and N. I. R. R. Hannan, "The Efficiency of Micro Steel Fiber (MSF) in Concrete Performance by Using Ultrasonic Pulse Velocity (UPV)," Recent Trends in Civil Engineering and Built Environment, vol. 2, no. 1, pp. 673–681, June 2021.

N. I. Zulkifli et al., "Experimental Investigation of Ultrasonic Pulse Velocity (UPV) Test Specimen in assessing the Strength of Steel Fiber Reinforced Concrete Structure," Journal of Advanced Industrial Technology and Application, vol. 2, no. 2, pp. 34–41, Dec. 2021.

S. Iqbal, A. Ali, K. Holschemacher, and T. A. Bier, "Effect of Change in Micro Steel Fiber Content on Properties of High Strength Steel Fiber Reinforced Lightweight Self-Compacting Concrete (HSLSCC)," Procedia Engineering, vol. 122, pp. 88–94, 2015.

B. Chun and D.-Y. Yoo, "Hybrid Effect of Macro and Micro Steel Fibers on the Pullout and Tensile Behaviors of Ultra-high-performance Concrete," Composites Part B: Engineering, vol. 162, pp. 344–360, Apr. 2019.

A. Gholampour and T. Ozbakkaloglu, "Fiber-reinforced Concrete Containing Ultra High-strength Micro Steel Fibers Under Active Confinement," Construction and Building Materials, vol. 187, pp. 299–306, Oct. 2018.

T. Alomayri, A. Raza, and F. Shaikh, "Effect of Nano SiO2 on Mechanical Properties of Micro-steel Fibers Reinforced Geopolymer Composites," Ceramics International, vol. 47, no. 23, pp. 33444–33453, Dec. 2021.

F. Koksal, M. S. Yıldırım, A. Benli, and O. Gencel, "Hybrid Effect of Micro-steel and Basalt Fibers on Physico-mechanical Properties and Durability of Mortars with Silica Fume," Case Studies in Construction Materials, vol. 15, Dec. 2021, Art. no. e00649.

I. Y. Hakeem, M. Amin, B. A. Abdelsalam, B. A. Tayeh, F. Althoey, and I. S. Agwa, "Effects of Nano-silica and Micro-steel Fiber on the Engineering Properties of Ultra-high Performance Concrete," Structural Engineering and Mechanics, vol. 82, no. 3, pp. 295–312, May 2022.

Portland Cement, Iraqi Specification No. 5/2019, Central Organization for Standardization and Quality Control, Iraqi, 2019.

Concrete and Building Aggregates, Iraqi Specification No. 45/2021, Central Organization for Standardization and Quality Control, Iraqi, 2021.

Test Method for Density, Absorption, and Voids in Hardened Concrete, ASTM C642-21, ASTM International, West Conshohocken, PA, USA, 2021.

Test Method for Pulse Velocity Through Concrete, ASTM C597-22, ASTM International, West Conshohocken, PA, USA, 2022.

Testing Hardened Concrete - Part 3: Compressive Strength of Test Specimens, BS EN 12390-3:2009, British Standards Institution, London, United Kingdom, June 26, 2019.

Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens, ASTM C215-19, ASTM International, West Conshohocken, PA, USA, 2019.

Test Method for Static Modulus of Elasticity and Poissons Ratio of Concrete in Compression, ASTM C469/C469M-14, ASTM International, West Conshohocken, PA, USA, 2014.

Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens, ASTM C496/C496M-17, ASTM International, West Conshohocken, PA, USA, 2017.

Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading), ASTM C496/C496M-17, ASTM International, West Conshohocken, PA, USA, 2016.

S. S. Abdulhussein, I. B. Johari, and N. M. Fawzi, "Mechanical Properties of Aerated-Polystyrene Concrete Reinforced by Polymer Fibers," Annales de Chimie - Science des Matériaux, vol. 48, no. 4, Aug. 2024.

A. A. Del Savio, D. La Torre Esquivel, J. Carrillo, and E. Chi Yep, "Determination of Polypropylene Fiber-Reinforced Concrete Compressive Strength and Elasticity Modulus via Ultrasonic Pulse Tests," Applied Sciences, vol. 12, no. 20, Oct. 2022, Art. no. 10375.

I. Hussain, B. Ali, T. Akhtar, M. S. Jameel, and S. S. Raza, "Comparison of Mechanical Properties of Concrete and Design Thickness of Pavement with Different Types of Fiber-reinforcements (Steel, Glass, and Polypropylene)," Case Studies in Construction Materials, vol. 13, Dec. 2020, Art. no. e00429.

Y. Ye, J. Liu, Z. Zhang, Z. Wang, and Q. Peng, "Experimental Study of High‐Strength Steel Fiber Lightweight Aggregate Concrete on Mechanical Properties and Toughness Index," Advances in Materials Science and Engineering, vol. 2020, no. 1, Jan. 2020, Art. no. 5915034.

S. R. Abid et al., "Impact Performance of Steel Fiber-Reinforced Self-Compacting Concrete against Repeated Drop Weight Impact," Crystals, vol. 11, no. 2, Jan. 2021, Art. no. 91.

S. Alqawzai, B. Yang, B. Alsubari, H. S. Abdulaali, M. Elchalakani, and A. Al-Nini, "Experimental Database on Pullout Bond Performance of Steel Fiber Embedded in Ultra-high-strength Concrete," Tikrit Journal of Engineering Sciences, vol. 29, no. 1, pp. 60–82, Mar. 2022.

A. Khaloo, E. Molaei Raisi, P. Hosseini, and H. Tahsiri, "Mechanical Performance of Self-compacting Concrete Reinforced with Steel Fibers," Construction and Building Materials, vol. 51, pp. 179–186, Jan. 2014.

K. H. Chachar, M. Oad, B. A. Memon, Z. A. Siyal, and K. F. Siyal, "Workability and Flexural Strength of Recycled Aggregate Concrete with Steel Fibers," Engineering, Technology & Applied Science Research, vol. 13, no. 3, pp. 11051–11057, June 2023.

S. S. Abdulhussein, S. F. Alkhafaji, and R. M. Kudadad, "Influence of Chopped Carbon Fibers Addition with Different Curing Methods on the Mechanical Properties of Cement Mortar Performance," Key Engineering Materials, vol. 972, pp. 145–151, Dec. 2023.

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[1]
S. F. Alkhafaji, R. A. Abduljabbar, S. S. Abdulhussein, H. D. Hussain, and H. R. Khalid, “Mechanical Properties of Sustainable Concrete Reinforced with Micro Steel Fibers”, Eng. Technol. Appl. Sci. Res., vol. 15, no. 5, pp. 27436–27444, Oct. 2025.

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Copyright (c) 2025 Sura F. Alkhafaji, Rawya A. Abduljabbar, Samer S. Abdulhussein, Hussein D. Hussein, Hajer R. Khalid

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