| dc.creator |
UYANIK, Osman |
|
| dc.creator |
Gur, Filiz |
|
| dc.creator |
Aydin, Ibrahim |
|
| dc.creator |
Uyanik, N. Ayten |
|
| dc.date |
2012-12-31T22:00:00Z |
|
| dc.date.accessioned |
2020-10-06T09:29:29Z |
|
| dc.date.available |
2020-10-06T09:29:29Z |
|
| dc.identifier |
1bd2643d-7b55-4e52-a5ce-49eadbf63ae3 |
|
| dc.identifier |
10.1007/s12665-012-1754-4 |
|
| dc.identifier |
https://avesis.sdu.edu.tr/publication/details/1bd2643d-7b55-4e52-a5ce-49eadbf63ae3/oai |
|
| dc.identifier.uri |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/54661 |
|
| dc.description |
Some of the rocks and soil-originated materials used in building construction are the serious natural radiation sources. Soil-originated bricks and roof-tiles and their raw material in the Salihli-Turgutlu area were tested in situ for natural radiation levels using a gamma-ray spectrometer. The concentrations of the radioelements K-40, U-238 and Th-232 and air-absorbed radiation rates were measured for soil, raw material heaps, brick and roof-tile stacks and waste brick heaps. The radium-equivalent activity Ra-eq of the raw material varied between 187.9 and 216.4 Bq kg(-1). The external radiation hazard index H-ex values ranged between 0.51 and 0.58. For building material and its products, recommended Ra-eq and H-ex levels are 370 Bq kg(-1) and 1.0, respectively. On the other hand, both Ra-eq and H-ex values for waste brick heaps, containing broken brick pieces, coal pieces and ash, were higher than the recommended levels, i.e. Ra-eq values varied from 473.8 to 651.0 Bq kg(-1) and H-ex values were within the range 1.15-1.76. The annual dose rate and radium-equivalent activity values of the brick and roof-tiles were below the level of criteria. Annual dose rate ranged between 0.42 and 0.62 mSv y(-1) and radium equivalent activity was in the range 172.9-245.2 Bq kg(-1). The external and internal radiation hazard indices were all below the value of 1.0 for the Salihli-Turgutlu area bricks and roof-tiles. Results of this study were compared with results of previous studies. Natural radiation levels of construction raw material of study area are generally higher than of those of previous studies. |
|
| dc.language |
eng |
|
| dc.rights |
info:eu-repo/semantics/closedAccess |
|
| dc.title |
Natural radioactivity of bricks and brick material in the Salihli-Turgutlu area of Turkey |
|
| dc.type |
info:eu-repo/semantics/article |
|