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Vol 149
Pages:
152-154
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Integrated assessment of clay rock transformation under the influence of radiation exposure

Authors:
R. E. Dashko
About authors
  • St. Petersburg State Mining Institute
Date submitted:
2000-10-14
Date accepted:
2000-11-27
Date published:
2001-05-01

Abstract

The influence of long-term radiation irradiation on changes in composition, physical and chemical activity and mechanical properties of Lower Cambrian blue clays serving as the base of low-activity waste storage facilities has been analyzed. It is shown that as a result of formation of defects in the crystal lattice of rock-forming and cementing minerals and their amorphization there is a significant decrease in the values of the total deformation modulus and shear resistance parameters, absorption capacity and swelling ability of clays increases 2 times. It was noted that the thickness of these clays is characterized by a high content of bacterial mass, which indicates active microbiological activity, especially in the upper part of the section.

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References

  1. Влияние облучения на материалы и элементы электронных схем: Сб. Статей / Под ред. Д.Ф.Кирчера и Р.Е.Боумана. М.: Атомиздат, 1967.
  2. Дине Дж. Радиационные эффекты в твердых телах / Дж. Дине, Дж.Виниярд. М.: Иностранная литература, 1960.
  3. Дубровский Б. Г Изменение свойств заполнителей бетонов под воздействием облучения нейтронами / Б.Г.Дубровский, Б.К.Пергаменшик, В.В.Кореневский и др. // Бетон и железобетон. 1970. № 9.
  4. Dashko RE. The peculiarities of geotechnical assessment of Lower Cambrian clays in the North-Westem part of the Russian platform / R.E.Dashko, I.L.Plechkova // Baltic Geotechnics'95 / Proceedings of the 8th Baltic Geotecnnical conference. Rotterdam, Brookfield, 1995.

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