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The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete
Samples of concrete contain various waste materials, such as iron particulates, steel balls of used ball bearings and slags from steel industry were assessed for their anti-radiation attenuation coefficient properties. The attenuation measurements were performed using gamma spectrometer of NaI (Tl)...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452844/ https://www.ncbi.nlm.nih.gov/pubmed/28788363 http://dx.doi.org/10.3390/ma6104836 |
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author | Azeez, Ali Basheer Mohammed, Kahtan S. Abdullah, Mohd Mustafa Al Bakri Hussin, Kamarudin Sandu, Andrei Victor Razak, Rafiza Abdul |
author_facet | Azeez, Ali Basheer Mohammed, Kahtan S. Abdullah, Mohd Mustafa Al Bakri Hussin, Kamarudin Sandu, Andrei Victor Razak, Rafiza Abdul |
author_sort | Azeez, Ali Basheer |
collection | PubMed |
description | Samples of concrete contain various waste materials, such as iron particulates, steel balls of used ball bearings and slags from steel industry were assessed for their anti-radiation attenuation coefficient properties. The attenuation measurements were performed using gamma spectrometer of NaI (Tl) detector. The utilized radiation sources comprised (137)Cs and (60)Co radioactive elements with photon energies of 0.662 MeV for (137)Cs and two energy levels of 1.17 and 1.33 MeV for the (60)Co. Likewise the mean free paths for the tested samples were obtained. The aim of this work is to investigate the effect of the waste loading rates and the particulate dispersive manner within the concrete matrix on the attenuation coefficients. The maximum linear attenuation coefficient (μ) was attained for concrete incorporates iron filling wastes of 30 wt %. They were of 1.12 ± 1.31×10(−3) for (137)Cs and 0.92 ± 1.57 × 10(−3) for (60)Co. Substantial improvement in attenuation performance by 20%–25% was achieved for concrete samples incorporate iron fillings as opposed to that of steel ball samples at different (5%–30%) loading rates. The steel balls and the steel slags gave much inferior values. The microstructure, concrete-metal composite density, the homogeneity and particulate dispersion were examined and evaluated using different metallographic, microscopic and measurement facilities. |
format | Online Article Text |
id | pubmed-5452844 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-54528442017-07-28 The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete Azeez, Ali Basheer Mohammed, Kahtan S. Abdullah, Mohd Mustafa Al Bakri Hussin, Kamarudin Sandu, Andrei Victor Razak, Rafiza Abdul Materials (Basel) Article Samples of concrete contain various waste materials, such as iron particulates, steel balls of used ball bearings and slags from steel industry were assessed for their anti-radiation attenuation coefficient properties. The attenuation measurements were performed using gamma spectrometer of NaI (Tl) detector. The utilized radiation sources comprised (137)Cs and (60)Co radioactive elements with photon energies of 0.662 MeV for (137)Cs and two energy levels of 1.17 and 1.33 MeV for the (60)Co. Likewise the mean free paths for the tested samples were obtained. The aim of this work is to investigate the effect of the waste loading rates and the particulate dispersive manner within the concrete matrix on the attenuation coefficients. The maximum linear attenuation coefficient (μ) was attained for concrete incorporates iron filling wastes of 30 wt %. They were of 1.12 ± 1.31×10(−3) for (137)Cs and 0.92 ± 1.57 × 10(−3) for (60)Co. Substantial improvement in attenuation performance by 20%–25% was achieved for concrete samples incorporate iron fillings as opposed to that of steel ball samples at different (5%–30%) loading rates. The steel balls and the steel slags gave much inferior values. The microstructure, concrete-metal composite density, the homogeneity and particulate dispersion were examined and evaluated using different metallographic, microscopic and measurement facilities. MDPI 2013-10-23 /pmc/articles/PMC5452844/ /pubmed/28788363 http://dx.doi.org/10.3390/ma6104836 Text en © 2013 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). |
spellingShingle | Article Azeez, Ali Basheer Mohammed, Kahtan S. Abdullah, Mohd Mustafa Al Bakri Hussin, Kamarudin Sandu, Andrei Victor Razak, Rafiza Abdul The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete |
title | The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete |
title_full | The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete |
title_fullStr | The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete |
title_full_unstemmed | The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete |
title_short | The Effect of Various Waste Materials’ Contents on the Attenuation Level of Anti-Radiation Shielding Concrete |
title_sort | effect of various waste materials’ contents on the attenuation level of anti-radiation shielding concrete |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452844/ https://www.ncbi.nlm.nih.gov/pubmed/28788363 http://dx.doi.org/10.3390/ma6104836 |
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