Radiological aspects of the usability of red mud as building material additive

János Somlai, Viktor Jobbágy, József Kovács, Sándor Tarján, Tibor Kovács

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

Several researchers have examined and achieved favourable results in connection with the building industry's use of red mud extracted in large quantities from the processing of bauxite. These days more and more precedence is being given to limiting the radiological dose to the population. In this study carried out in Hungary, the use of red mud, bauxite, and clay additives recommended for the production of special cements, were examined from a radiological aspect. 226Ra and 232Th activity concentrations measured in Hungarian bauxite, red mud and clay samples were significantly similar with the levels for such raw materials mentioned in international literature. Taking radiation protection aspects into consideration, none of these products can be directly used for building construction. Taking Hungarian and international values into consideration, a small amount of red mud, not exceeding 15% could be used for brick production, for example as a colouring material. However, beyond this amount the standards for building materials would not be met. For the production of cements an even stricter limit needs to be determined when both bauxite and red mud are used.

Original languageEnglish
Pages (from-to)541-545
Number of pages5
JournalJournal of Hazardous Materials
Volume150
Issue number3
DOIs
Publication statusPublished - Feb 11 2008

Keywords

  • Building material
  • Radioactivity
  • Red mud

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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