Title
Characterization of gas concrete materials used in buildings of TurkeyCharacterization of gas concrete materials used in buildings of Turkey
Author
Faculty/Department
Faculty of Sciences. Chemistry
Research group
AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Publication type
article
Publication
Amsterdam,
Subject
Chemistry
Source (journal)
Journal of hazardous materials. - Amsterdam
Volume/pages
168(2009):2/3, p. 681-687
ISSN
0304-3894
ISI
000268200700014
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The activity concentration of 226Ra, 232Th and 40K in gas concrete samples collected from different suppliers and some provinces in Turkey were measured using gamma-ray spectrometry. Knowledge of radioactivity in gas concrete used in building materials enables one to assess any possible radiological risks to human health. The mean activity concentrations observed in the gas concrete samples were 82.0, 28.2 and 383.9 Bq kg−1 for 226Ra, 232Th and 40K, respectively. The radium equivalent activity, external and internal hazard indices as well as terrestrial absorbed dose and annual effective dose rate was calculated. The results indicate that the radium equivalent activity values of gas concrete samples are lower than the limit of 370 Bq kg−1, equivalent to a gamma-dose of 1.5 mSv y−1. Moreover, mass attenuation coefficients were measured in some gas concrete samples. It was found that the mass attenuation coefficients decreased with increasing photon energies. Also, chemical compositions and structural analysis (XRD and SEM) of the gas concrete samples were investigated.
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