Search academic texts

Information × Registration Number 0221U106938, 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 Head Saienko Serhii Yu., Доктор технічних наук Registration Date 22-12-2021 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2 Research has been carried out on the formation of geopolymer compositions based on aluminosilicate raw materials and alkaline activators for use in the technology of immobilization of radioactive waste from nuclear power plants. The physical and mechanical properties of the obtained materials have been studied. Based on the studies performed, the optimal composition of a geopolymer binder based on fly ash, blast furnace, slag and metakaolin, as well as liquid potassium glass and potassium hydroxide was selected. The geopolymer samples produced by the developed method using are determined by a very dense and homogeneous structure and characterized by acceptable strength parameters: at compression ≥ 30 MPa after holding for 28 days. The influence of the inclusion of an ion-exchange resin (up to 20%), as a simulator of liquid radioactive waste, on the properties of a geopolymer binder was investigated. It is shown that specimens with 10% and 20% ion-exchange resin additives are characterized by a dense, homogeneous structure and have, in comparison with specimens of optimal composition, not significantly lower compressive strength parameters of 23 and 20 MPa, respectively. The developed geopolymer material is very promising for use in the technology of immobilization of liquid radioactive waste from nuclear power plants in Ukraine, in particular, spent ion-exchange resins.   Product Description popup.authors Svitlychniy Yevgeniy O Shkuropatenko Volodymyr A popup.nrat_date 2021-12-22 Close