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Sustainable Gamma Radiation Shielding: Coconut Shell Ash Modified Concrete for Radiation Protection Applications |
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PP: 33-44 |
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doi:10.18576/jrna/100106
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Author(s) |
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U. Rilwan,
M.A. Abdulazeez,
I. Maina,
O.W. Olasoji,
Atef El-Taher,
I.S. Adeshina,
M.I. Sayyed,
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Abstract |
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| The present work looked at the gamma-ray shielding ability of concrete with cement partially replaced by coconut shell ash (CSA). We produced four novel concretes which include 0%CC, 10%CC, 20%CC, and 30%CC, where CC stands for CSA percentage cement replacement. The samples were tested for economic and environmental assessment using a mathematical approach and radiation shielding performance using both experimental techniques (NaI detector with Co-60 and C-137 sources) and theoretical techniques (Phy-X). The report revealed that 0%CC had the superior LAC value (0.386 cm-1) in the lower energy range (0.15 MeV), while at higher photon energy, 30%CC exhibited the least value of LAC (0.169 cm-1). For the tested photon energy spectrum, the values of the mean free path (MFP) were within 2.591 cm for 0%CC and 5.917 cm for 30%CC. The results of the cost-effectiveness analysis revealed 90% MCS (material cost savings) for the entire fabricated samples and 50% WUE (waste utilization efficiency) for concrete 30%CC, which indicates a great reduction in the cost of production. A high level of agreement between theoretical and experimental findings with RD (relative deviation) ranged from 0.771% to 4.520%. The report of the study confirmed that at a lower energy range, the radiation shielding strength of our concretes is enhanced with the presence of CSA and also gives a cost and eco-friendly substitute for radiation protection applications. The study lamented the CSA potential in sustainable development via the reduction of waste and cost of material while ensuring sufficient gamma shielding performance. |
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