Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.18720/MCE.100.7
Ключевые слова: radon, building materials, concretes, emanation coefficient, water content
Аннотация: This article provides the results of a study to determine the emanation coefficient of artificial construction material, namely heavy concrete produced by semi-dry pressing, depending on equilibrium sorption moisture content achieved in the desorption stage. We measured radon volumetric activity in a sealed chamber at different airПоказать полностьюrelative humidity, determined the specific activity of naturally occurring radionuclides (NORs), and calculated the specific effective activity of NORs. Then we obtained mathematical models of the dependence of the emanation ratio on the degree of pores filling with water, and it was determined that the emanation coefficient increases by almost 50 % in the range of relative humidity typical for residential and public buildings, which necessitates the numerical control of this parameter in order to accurately assess the dose load on the population.
Журнал: Magazine of Civil Engineering
Выпуск журнала: №8
Номера страниц: 10007
ISSN журнала: 27128172
Место издания: Санкт-Петербург
Издатель: Санкт-Петербургский политехнический университет Петра Великого