The Effect of Different Curing Temperatures on the Properties of Geopolymer Reinforced with Micro Steel Fibers


  • M. S. Amouri Department of Civil Engineering, University of Baghdad, Iraq
  • N. M. Fawzi Department of Civil Engineering, College of Engineering, University of Baghdad, Iraq
Volume: 12 | Issue: 1 | Pages: 8029-8032 | February 2022 |


In this study, geopolymer mortar was designed in various experimental combinations employing 1% micro steel fibers and was subjected to different temperatures, according to the prior works of other researchers. The geopolymer mortar was developed using a variety of sustainable material proportions (fly ash and slag) to examine the influence of fibers on its strength. The fly ash weight percentage was 50%, 60%, and 70% by slag weight to study its effect on the geopolymer mortar's properties. The optimal ratio produced the most significant results when mixed at a 50:50 ratio of fly ash and slag with 1% micro steel fibers at curing temperature 240oC for 4 hours through two days. The compressive strength of the geopolymer mortar increased by 11%, 11.5%, and 14% after 3, 7, and 28 days when utilizing fibers. The result shows that fly ash with a ratio of 50% by weight of slag improved the compressive strength of the mixture. It was discovered that a combination with 50% of the weight of fly ash with micro steel fibers, when treated at 240oC for curing age of 3, 7, and 28 days, had a flexural resistance rate of 28%, 30%, 33% higher than a mixture without fibers.


sustainable material, geopolymer mortar, fly ash, ground granulated blast furnace, slag


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D. Hardjito and B. Rangan, "Development and Properties of Low-Calcium Fly Ash Based Geopolymer Concrete," Curtin University of Technology, Perth, Australia, Research Report GC 1, 2005.

M. S. Imbabi, C. Carrigan, and S. McKenna, "Trends and developments in green cement and concrete technology," International Journal of Sustainable Built Environment, vol. 1, no. 2, pp. 194–216, Dec. 2012. DOI:

Z. F. Muhsin and N. M. Fawzi, "Effect of Fly Ash on Some Properties of Reactive Powder Concrete," Journal of Engineering, vol. 27, no. 11, pp. 32–46, Nov. 2021. DOI:

A. Sicakova, E. Kardosova, and M. Spak, "Perlite Application and Performance Comparison to Conventional Additives in Blended Cement," Engineering, Technology & Applied Science Research, vol. 10, no. 3, pp. 5613–5618, Jun. 2020. DOI:

V. T. Phan and T. H. Nguyen, "The Influence of Fly Ash on the Compressive Strength of Recycled Concrete Utilizing Coarse Aggregates from Demolition Works," Engineering, Technology & Applied Science Research, vol. 11, no. 3, pp. 7107–7110, Jun. 2021. DOI:

S. A. Chandio, B. A. Memon, M. Oad, F. A. Chandio, and M. U. Memon, "Effect of Fly Ash on the Compressive Strength of Green Concrete," Engineering, Technology & Applied Science Research, vol. 10, no. 3, pp. 5728–5731, Jun. 2020. DOI:

J. L. Provis and J. S. J. van Deventer, Eds., Geopolymers: Structures, Processing, Properties and Industrial Applications, 1st ed. Oxford : Boca Raton, FL, USA: Woodhead Publishing, 2009. DOI:

S. S. Hussein and N. M. Fawzi, "Influence of Using Various Percentages of Slag on Mechanical Properties of Fly Ash-based Geopolymer Concrete," Journal of Engineering, vol. 27, no. 10, pp. 50–67, Oct. 2021. DOI:

ASTM C618-19: Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete. ASTM International, 2019.

Iraqi Standard Specification No 1703: Water Used in Concrete. Baghdad, Iraq, 2000.

Iraqi Standard Specification No 45, "Aggregates from Natural Sources for Concrete and Building Construction. Baghdad, Iraq, 1984.

B. Rangan, "Fly Ash-Based Geopolymer Concrete," in Proceedings of the International Workshop on Geopolymer Cement and Concrete, Dec. 2010, pp. 68–106.

ASTM C109/C109M-20: Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens). ASTM International, 2020.

M. Albitar, M. S. Mohamed Ali, P. Visintin, and M. Drechsler, "Effect of granulated lead smelter slag on strength of fly ash-based geopolymer concrete," Construction and Building Materials, vol. 83, pp. 128–135, May 2015. DOI:

A. A. Adam and X. X. X. Horianto, "The Effect of Temperature and Duration of Curing on the Strength of Fly Ash Based Geopolymer Mortar," Procedia Engineering, vol. 95, pp. 410–414, Jan. 2014. DOI:

ASTM C293/C293M-16: Standard Test Method for Flexural Strength of Concrete (Using Simple Beam With Center-Point Loading). ASTM International, 2016.

ASTM C 494/C 494M – 05a: Standard Specification for Chemical Admixtures for Concrete. ASTM International, 2005.

P. Zhang, J. Wang, Q. Li, J. Wan, and Y. Ling, "Mechanical and fracture properties of steel fiber-reinforced geopolymer concrete," Science and Engineering of Composite Materials, vol. 28, no. 1, pp. 299–313, Jan. 2021. DOI:


How to Cite

M. S. Amouri and N. M. Fawzi, “The Effect of Different Curing Temperatures on the Properties of Geopolymer Reinforced with Micro Steel Fibers”, Eng. Technol. Appl. Sci. Res., vol. 12, no. 1, pp. 8029–8032, Feb. 2022.


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