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Volume 15
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10.3390/buildings15152788
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Retraction of Buildings 2024, 14(7), 2068.
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Retraction

RETRACTED: Sariyev et al. A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach. Buildings 2024, 14, 2068

by
Bakytzhan Sariyev
1,*,
Alisher Konysbekov
2,
Assel Jexembayeva
3,* and
Marat Konkanov
3
1
Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
2
Department of Civil Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
3
Faculty of Architecture and Civil Engineering, Gumilyov Eurasian National University, Kazhymukan Str. 13 r205, Astana 010008, Kazakhstan
*
Authors to whom correspondence should be addressed.
Buildings 2025, 15(15), 2788; https://doi.org/10.3390/buildings15152788
Submission received: 24 May 2025 / Accepted: 24 May 2025 / Published: 7 August 2025
Versions Notes
The journal retracts the article “A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach” [1], cited above.
Following publication, the authors contacted the Editorial Office regarding significant inconsistencies between the experimental results and the numerical simulation data. These discrepancies specifically concern the Herschel–Bulkley–Papanastasiou model’s application for characterizing the fiber-reinforced geopolymer’s flow behavior.
Adhering to our standard procedure, an investigation was conducted by the Editorial Office and Editorial Board, which confirmed that the inaccurate parameterization of the numerical model invalidates the study’s predictions regarding the geopolymer’s flow behavior, thus significantly undermining the reliability of the conclusions presented in the paper. Given the impact of these scientific flaws on the validity of the overall findings, the Editorial Board has accepted the request of the authors and have decided to retract this article [1] as per MDPI’s retraction policy (https://www.mdpi.com/ethics#_bookmark30).
This retraction was approved by the Editor-in-Chief of the journal Buildings.
Alisher Konysbekov agrees to this retraction. Bakytzhan Sariyev, Assel Jexembayeva, and Marat Konkanov do not agree to this retraction.

Reference

  1. Sariyev, B.; Konysbekov, A.; Jexembayeva, A.; Konkanov, M. RETRACTED: A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach. Buildings 2024, 14, 2068. [Google Scholar] [CrossRef]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

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MDPI and ACS Style

Sariyev, B.; Konysbekov, A.; Jexembayeva, A.; Konkanov, M. RETRACTED: Sariyev et al. A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach. Buildings 2024, 14, 2068. Buildings 2025, 15, 2788. https://doi.org/10.3390/buildings15152788

AMA Style

Sariyev B, Konysbekov A, Jexembayeva A, Konkanov M. RETRACTED: Sariyev et al. A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach. Buildings 2024, 14, 2068. Buildings. 2025; 15(15):2788. https://doi.org/10.3390/buildings15152788

Chicago/Turabian Style

Sariyev, Bakytzhan, Alisher Konysbekov, Assel Jexembayeva, and Marat Konkanov. 2025. "RETRACTED: Sariyev et al. A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach. Buildings 2024, 14, 2068" Buildings 15, no. 15: 2788. https://doi.org/10.3390/buildings15152788

APA Style

Sariyev, B., Konysbekov, A., Jexembayeva, A., & Konkanov, M. (2025). RETRACTED: Sariyev et al. A Comparative Study of the Rheological Properties of a Fly Ash-Based Geopolymer Reinforced with PP Fiber for 3D Printing: An Experimental and Numerical Approach. Buildings 2024, 14, 2068. Buildings, 15(15), 2788. https://doi.org/10.3390/buildings15152788

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