Determination of resistance to radon entry of underground walling at stage of construction design – 2019.

Abstract

The dose from radon and its progeny is a controlled component of the radiation load on the population, and therefore can be reduced by the use of appropriate construction technologies. The article shows that the convective flow can be reduced to zero by choosing the appropriate floor construction, whereas the diffusion cannot be completely excluded, and the diffusion radon flux can only be reduced to a certain level. An approach to the assessment of the required radon-protective characteristics of the building is proposed under the assumption that there is no convective radon entry. As a radon load on the underground part of the building, the radon potential of the soil, determined by the results of gamma-spectrometric analysis of the soil from the construction site, was used. The procedure for calculating the geometric characteristics of layers with high resistance to radon permeability based on the required radon concentration in the ground floor premises of the building after its construction and the radiation characteristics of the soil on the construction site is shown.