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X-ray radiation shielding properties of cement mortars prepared with different types of aggregates

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Abstract

The types of aggregate used play an important role in determining the effectiveness of X-ray radiation protection of cement mortars. Cement mortars were prepared using fine aggregates obtained from six different sources. The influence of aggregate type on X-ray shielding properties was studied. The results showed that mortars prepared with barite and lead-laden recycled cathode ray tube funnel glass provided better shielding properties than mortars prepared with natural sand, natural crushed fine stone or crushed beverage glass. This is attributed to the use of dense aggregates being able to interact with X-ray radiation, thus reducing the depth of penetration. Due to the superior shielding properties of the mortar containing barite, it can be used to replace traditional sand mortar for applications as rendering or plastering materials for the construction of medical diagnostic and CT scanner rooms.

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Acknowledgments

The authors would like to thank the Environment and Conservation Fund and the Woo Wheelock Greed Fund, and The Hong Kong Polytechnic University for funding support.

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Authors and Affiliations

  1. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

    Tung-Chai Ling, Chi-Sun Poon & Wai-Shung Lam

  2. School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham, UK

    Tung-Chai Ling

  3. Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

    Tai-Po Chan & Karl Ka-Lok Fung

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  1. Tung-Chai Ling
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  2. Chi-Sun Poon
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  3. Wai-Shung Lam
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Correspondence to Chi-Sun Poon.

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Ling, TC., Poon, CS., Lam, WS. et al. X-ray radiation shielding properties of cement mortars prepared with different types of aggregates. Mater Struct 46, 1133–1141 (2013). https://doi.org/10.1617/s11527-012-9959-2

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  • DOI: https://doi.org/10.1617/s11527-012-9959-2

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