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Information × Registration Number 0225U004704, (0121U110091) , R & D reports Title Material research on the elaboration of geopolymer materials and expanding their functionality for advancing of the technology of radiative waste immobilization for nuclear power plants popup.stage_title Прогнозування поведінки розроблених захисних матриць в умовах тривалого зберігання і захоронення, а також фінальне обґрунтування процесу інкапсулювання імітаторів радіоактивних відходів українських атомних електростанцій в захисні матриці на основі розроблених геополімерних матеріалів Head Saienko Serhii Yu., Доктор технічних наук Registration Date 17-12-2025 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description1 Development, creation and research of the perspective protective materials of geopolymer class by using of domestic natural materials and industrial waste and evaluation of long-term behavior of these materials applied for isolation of the radioactive waste from nuclear power plants popup.description2 To analyze the migration of radionuclides from the radioactive waste disposal site into the ecosystem, a mathematical model of radionuclide mass transfer in the geological environment containing the repository was developed. As the initial data for each component of the model, both the results of laboratory tests of geopolymer matrices for leaching and conservative values taken from international literature were used. The results of research and calculations were used to assess the migration of the most important radionuclides, namely Cs and Sr, through safety barriers beyond the boundaries of the near-surface repository for intermediate-level waste in the form of (geopolymer matrix - reinforced concrete container - soil). The thermal calculation performed showed that the temperature in the first 10-20 years in the center of the repository can rise to 50 °C and then decrease over time. It has been established that with standard parameters of a near-surface repository, geopolymer protective matrices prevent the entry of radionuclides into aquifers and their amount over the analyzed period of time (about 300 years) does not exceed the maximum permissible concentrations of these radionuclides in drinking water. Product Description popup.authors Olexandr V. Pylypenko Hennadii O. Kholomieiev Mariia O. Odeichuk Olena H. Ledovska Olexandr Y. Surkov Kostiantyn V. Lobach Anna V. Zykova Yevhenii O. Svitlychnyi Volodymyr A. Shkuropatenko Viktoriia V. Andrieieva popup.nrat_date 2025-12-17 Close