In-situ testing of Czech bentonite for radioactive waste disposal in Mock-up Josef experiment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00356527" target="_blank" >RIV/68407700:21110/22:00356527 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.anucene.2022.109059" target="_blank" >https://doi.org/10.1016/j.anucene.2022.109059</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.anucene.2022.109059" target="_blank" >10.1016/j.anucene.2022.109059</a>

Result language

angličtina

Original language name

In-situ testing of Czech bentonite for radioactive waste disposal in Mock-up Josef experiment

Original language description

The Mock-up Josef experiment is an in-situ physical model aimed at studying Czech Ca-Mg bentonite heated to 90 °C. The main objectives of the experiment were in-situ demonstration of a system for safe disposal of spent nuclear fuel, study the behavior of a bentonite barrier under repository conditions (loading of bentonite by temperature and by saturation of water) and obtaining data for mathematical modelling. In order to monitor the various ongoing processes, temperature, pressure and relative humidity sensors were installed within the whole experiment. And it is clear from the data provided by the sensors to date that a most of the processes in bentonite (saturation, temperature evolution) and in surrounding rock mass (temperature evolution) have been mostly stabilised after 8 years. During the experiment, bentonite samples were collected and analysed to determine possible changes in bentonite barrier properties. From the laboratory analyses of the samples a slight change in swelling pressure and hydraulic conductivity was evident, which does not indicate the bentonite degradation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Annals of Nuclear Energy

ISSN

0306-4549

e-ISSN

1873-2100

Volume of the periodical

172

Issue of the periodical within the volume

July

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

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UT code for WoS article

000806174600012

EID of the result in the Scopus database

2-s2.0-85126048104