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Modification of the Cement Matrix with Organic Additives for Stabilizing Pertechnetate Ionsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 октября 2021 г.
- Авторы: Kamorny D.A., Safonov A.V., Boldyrev K.A., Abramova E.S., Tyupina E.A., Gorbunova O.A.
- Журнал: Journal of Nuclear Materials
- Том: 557
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 153295
- DOI: 10.1016/j.jnucmat.2021.153295
- Аннотация: Stabilizing properties of polyhexamethyleneguanidine hydrochloride, tetraphelylphosphonium chloride, polyethyleneimine, and thiocarbamide were evaluated in order to determine their influence on the long-term stabilization of Tc in a Portland cement compound. The modifying agents’ effect on the mechanical strength under air-wet conditions was investigated. Possible impact of modifiers on the intensification of bacterial processes was taken into account during the investigation. A 2-5-fold reduction in pertechnetate leaching was observed when the investigated additives were applied. Addition of polyhexamethyleneguanidine hydrochloride was deemed preferable as it simultaneously ensured stabilization of Tc properties, provided the mechanical strength required, and protected the cement matrix from the biological degradation.
- Добавил в систему: Тюпина Екатерина Александровна