Use of concrete as a biological shield from ionising radiation

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Journal Article
Sustainable Construction Materials and Technologies, 2013, 2013-August
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© 2013 Sustainable Construction Materials and Technologies. All rights reserved. The controversy over the use of nuclear energy fundamentally arises from the three main considerations: from its safety, from its long term sustainability, and finally from its potential to reduce greenhouse gas emissions. Following the Fucushima nuclear plant accident, caused by the exceptionally strong earthquake and tsunami, the potential for the safe use of the nuclear energy in Japan became of concern to the authorities, to the industry and to the population in general. The current paper addresses the problem of safety of nuclear plants, and specifically the design and construction of reliable biological shields, capable of protecting public from the ionising radiation. The explicit emphasis is made on the potential use of local materials, including Portland cements, Pozzolans, admixtures and additives, and the variety of natural aggregates, as well as heavy weight aggregates, consisting of the industrial steel by-products. Both the theory and practice of shield construction are discussed.
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