Radioactivity of buildings materials available in Slovakia

E Singovszka, A Estokova, J Mitterpach
2017 IOP Conference Series: Earth and Environment  
In the last decades building materials, both of natural origin and containing industrial by-products, have been shown to significantly contribute to the exposure of the population to natural radioactivity. As a matter of fact, neither the absorbed dose rate in air due to gamma radiation nor the radon activity concentration are negligible in closed environments. The soil and rocks of the earth contains substances which are naturally radioactive and provide natural radiation exposures. The most
more » ... posures. The most important radioactive elements which occur in the soil and in rocks are the long lived primordial isotopes of potassium (40K), uranium (238U) and thorium (232Th). Therefore, additional exposures have to be measured and compared with respect to the natural radiation exposure. Further, it is important to estimate the potential risk from radiation from the environment. The paper presents the results of mass activities of 226 Ra, 232 Th a 40 K radionuclides in cement mortars with addition of silica fume. The gamma index was calculated as well.
doi:10.1088/1755-1315/92/1/012054 fatcat:6sla34bqsjflxifcc3cnyml26y