Evaluation of radiation shielding and mechanical properties of palm nut shell ash modernized concrete: a comparative analysis

Authors

  • U. Rilwan
    Department of Physics, Faculty of Natural and Applied Sciences, Nigerian Army University, P.O.Box 1500, Biu, Borno State, Nigeria
  • M. I. Sayyed
    Department of Physics, Faculty of Science, Isra University, Amman, Jordan
  • K. A. Mahmoud
    Ural Federal University, St. Mira, 19, 620002, Yekaterinburg, Russia
  • S. Muhammad
    Department of Physics, Faculty of Natural and Applied Sciences, Nigerian Army University, P.O.Box 1500, Biu, Borno State, Nigeria
  • A. Alkasim
    Department of Physics, Faculty of Natural and Applied Sciences, Nigerian Army University, P.O.Box 1500, Biu, Borno State, Nigeria
  • S. I. Ikpughul
    Department of Physics, Faculty of Natural and Applied Sciences, Nigerian Army University, P.O.Box 1500, Biu, Borno State, Nigeria
  • S. J. Iwa
    Department of Physics, Federal University of Technology, Owerri, Imo State, Nigeria
  • Jibrin Ahmed Guto
    Department of Building, Faculty of Environmental, Nigerian Army University, P.O. Box 1500, Biu, Borno State, Nigeria
  • O. A. Adeyeba
    Department of Materials Science and Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Kingdom of Saudi Arabia
  • M. W. Marashdeh
    Department of Physics, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, Riyadh, 11623, Saudi Arabia

Keywords:

Gamma radiation shielding, Mechanical properties, Palm nut shell ash, granite, porosity.

Abstract

Gamma radiation poses health and environmental risks, creating the need for sustainable, low-cost, and eco-friendly shielding materials. In this study, we modified ordinary concrete with palm nut shell ash (PNSA) to examine its mechanical, physical, and gamma ray shielding performance. The adopted W/C (water-to-cement) ratio was 0.5 for the entire mixtures and the ratio of the samples’ masses to their respective volumes gives the densities of our samples. The results reported that, as PNSA advances from 0 to 0.15 kg, the concrete density decreased from 2.40 to 2.25 g/cm3, accompanied by a rise in porosity from 14.5% to 21.5% as well as an increase in water absorption from 6.8% to 8.6%, 6.4% to 8%, and 5% to 7% respectively for 7, 14, and 28 curing days. The mechanical characteristics decrease as PNSA is added to the concrete matrix. The Monte Carlo N-Particle (MCNP) and Phy-X/PSD simulation results showed that CPNSA2 had superior linear attenuation coefficient (LAC), confirming higher gamma ray attenuation ability. Generally, this work displayed the prospect of adding PNSA for the purpose of shielding against the low and intermediate gamma-ray energy. This study contributes by introducing palm nut shell ash as a sustainable cement substitute, demonstrating improved gamma-ray attenuation with CPNSA2, and reducing reliance on costly and toxic conventional shielding materials.

Dimensions

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Published

2026-02-01

How to Cite

Evaluation of radiation shielding and mechanical properties of palm nut shell ash modernized concrete: a comparative analysis. (2026). Journal of the Nigerian Society of Physical Sciences, 8(1), 2872. https://doi.org/10.46481/jnsps.2026.2872

Issue

Volume 8, Issue 1, February 2026

Section

Physics & Astronomy
Copyright & Licensing

Copyright (c) 2025 U. Rilwan, M. I. Sayyed, K. A. Mahmoud, S. Muhammad, A. Alkasim, S. I. Ikpughul, S. J. Iwa, Jibrin Ahmed Guto, O. A. Adeyeba, M. W. Marashdeh (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Evaluation of radiation shielding and mechanical properties of palm nut shell ash modernized concrete: a comparative analysis. (2026). Journal of the Nigerian Society of Physical Sciences, 8(1), 2872. https://doi.org/10.46481/jnsps.2026.2872

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