Thermal Water Retention Characteristics of Compacted Bentonite

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10388360" target="_blank" >RIV/00216208:11310/18:10388360 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/978-981-13-0095-0" target="_blank" >https://doi.org/10.1007/978-981-13-0095-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-981-13-0095-0" target="_blank" >10.1007/978-981-13-0095-0</a>

Result language
angličtina
Original language name
Thermal Water Retention Characteristics of Compacted Bentonite
Original language description
Compacted bentonites are popularly being considered as buffer or backfill material in high level nuclear waste repositories around the world. These bentonites may undergo various conditions including hydration from around geo-environmental water and heating by the radiation of the used fuel during its period of operation. Water retention properties of as-compacted Czech bentonite B75 with three initial dry densities (1.27 g/cm3, 1.60 g/cm3 and 1.90 g/cm3) and bentonite powders were investigated within temperature 20-80 °C at unconfined conditions. Vapor equilibrium method was used to control constant relative humidity. The influence of temperature on water retention properties was analyzed and discussed. Results show that the temperature decreased water retention capacity for all cases. The water retention capacity is lower at high temperature especially at lower suction. The temperature has more significant effect on drying path than wetting path. Furthermore, the volume swelling decreased with the increased temperature upon saturation. The hysteretic behavior decreased with the increase of temperature for all studied materials.
Czech name
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Czech description
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Project
<a href="/en/project/GA15-05935S" target="_blank" >GA15-05935S: Development of thermo-hydro-mechanical model for expansive soils and simulation of nuclear waste repository</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of GeoShanghai 2018 International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing
ISBN
978-981-13-0095-0
ISSN
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e-ISSN
neuvedeno
Number of pages
8
Pages from-to
71-78
Publisher name
Springer
Place of publication
Berlin
Event location
Shanghai
Event date
May 27, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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