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Effect of gamma irradiation on Portland cement: Hydrogen evolution and radiation resistanceстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 августа 2021 г.
- Авторы: Bykov G.L., Abkhalimov E.V., Ershov V.A., Ershov B.G.
- Журнал: Construction and Building Materials
- Том: 295
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 123644
- DOI: 10.1016/j.conbuildmat.2021.123644
- Аннотация: Cementitious materials are widely applied as a matrix for the immobilization of low- and intermediate-level radioactive waste. The use of these materials for high-level waste localization requires knowledge of their properties at high irradiation doses. We have studied the gas evolution and changes in the mechanical strength, composition, and structure of ordinary Portland cement (OPC) upon its irradiation up to absorbed doses of ~ 100 MGy. The decomposition of water present in the cement is accompanied by hydrogen evolution. No oxygen formation was detected. The hydrogen accumulation is described by an exponential equation; the limiting gas concentration reached is approximately 2.8 L per 1 kg of cement. The mechanical strength up to absorbed doses of tens of megagrays varies insignificantly. Irradiation with accelerated (8 MeV) electrons exerts virtually the same effect as does γ-irradiation to the same absorbed dose. The structure, composition, and morphology of cement samples remain virtually unchanged up to high absorbed doses.
- Добавил в систему: Абхалимов Евгений Владиленович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Building_2021.pdf | 2,7 МБ | 14 декабря 2021 [BykovGL] |