Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pilot field experiment with canister-embedding clay under simulated repository conditions
Abstract Precompacted annular clay blocks surrounding a casing with a heater were emplaced in a borehole with 20 cm diameter and 2.8 m depth in granite. The heater was in operation for 8 months and raised the temperature of the clay to 176°C close to the casing. At the extraction the clay was completely water-saturated close to the rock and it had experienced an increased water content also close to the hot casing. Mineralogical changes of the Ca-smectite clay were indicated by a slight increase in CEC and by an XRD-based conclusion that the content of low-charge smectite increased, while the initial content of kaolinite was reduced.
Pilot field experiment with canister-embedding clay under simulated repository conditions
Abstract Precompacted annular clay blocks surrounding a casing with a heater were emplaced in a borehole with 20 cm diameter and 2.8 m depth in granite. The heater was in operation for 8 months and raised the temperature of the clay to 176°C close to the casing. At the extraction the clay was completely water-saturated close to the rock and it had experienced an increased water content also close to the hot casing. Mineralogical changes of the Ca-smectite clay were indicated by a slight increase in CEC and by an XRD-based conclusion that the content of low-charge smectite increased, while the initial content of kaolinite was reduced.
Pilot field experiment with canister-embedding clay under simulated repository conditions
Atabek, Rosemarie (Autor:in) / Lajudie, Alain (Autor:in) / Lechelle, Jacques (Autor:in) / Pusch, Roland (Autor:in)
Engineering Geology ; 28 ; 291-302
14.02.1989
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Clay Lumps under Simulated Hydraulic Transport Conditions
| British Library Online Contents | 1992