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Surveys Converning the Capacity of Some Cement-aggregate Combinations to Mitigate the Gamma Radiation



Title: Surveys Converning the Capacity of Some Cement-aggregate Combinations to Mitigate the Gamma Radiation
Author(s): Poteras
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 651 - 657
Total Pages: 7
Language: English


Abstract: In the context of the recent nuclear technical developments and implicitly, of
increasing the risk of nuclear accidents, the problems related to the providing of an efficient
biological protection have a major importance. The materials which can ensure the reduction
of the radiation intensity up to the admissible limit, are in a large quantity. The only necessary
condition is that the thickness of the material layer to be big enough. Taking into account the
diversity of the materials which can be used, the issue of adopting some efficient protection
solutions had to be considered. These solutions refer both to the element geometry and to the
economical aspects. Because it was established that the concrete has the highest reserves in
accomplish the settled standards, the researches performed in our laboratory and which are
described in the notification herein have been focused on the testing of various cement-
aggregate combinations in order to mitigate the gamma radiation. The criteria which have
been considered in the selection on the materials used in the research process will be
presented in our survey as well as their physical-chemical properties, the studied
compositions and the reduction degree of the radiation intensity by presenting the mitigation
parameters of the gamma radiation for each studied composition. All six studies compositions
contain both natural aggregates (from the pit ballast and from the quarry) and wastes (iron
filings, sludge resulted in the galvanization process and dust resulted after the aggregates
crushing).


Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.072


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