Objective
WORK PREVIOUSLY CARRIED OUT WITHIN THE CEC'S RESEARCH AND DEVELOPMENT PROGRAMME INDICATES THAT SWELLING CLAY TOGETHER WITH BITUMEN COULD BE USED TO FORM A HIGHLY EFFECTIVE WASTE CONTAINMENT BARRIER FOR USE IN DEEP UNDERGROUND RADIOACTIVE WASTE REPOSITORIES.
THIS PROJECT SEEKS TO IDENTIFY RELEVANT MATERIAL PROPERTIES AND SEALING MECHANISMS. ITS OBJECTIVES ARE:
- TO ASSESS THE POTENTIAL BEHAVIOUR OF COMBINATIONS OF SWELLING CLAYS AND BITUMEN, AND THE POTENTIAL EFFECTIVENESS OF SYNERGISTIC COMBINATIONS OF THESE MATERIALS FOR SEALING UNDERGROUND REPOSITORIES AGAINST GROUNDWATER INGRESS, RADIONUCLIDE RELEASE AND GAS RELEASE.
- TO ASSESS THE POTENTIAL LEVEL OF CONFIDENCE IN THE LONG-TERM BEHAVIOUR OF SUCH SEALS IN THE PERSPECTIVE OF THE QUALITY ASSURANCE PROCEDURES THAT COULD BE ASSOCIATED WITH THE EMPLACEMENT OF BACKFILL AND SEAL MATERIALS.
THE WORK PROGRAMME CONSISTS OF THE FOLLOWING ACTIVITIES :
1. A REVIEW OF AVAILABLE INFORMATION ON PROPERTIES AND BEHAVIOUR OF SWELLING CLAYS (INCLUDING BENTONITE AND MAGNESIUM OXIDE) AND INFORMATION ON BITUMENS AS USED IN ENGINEERING STRUCTURES.
2. CONTROL TESTS ON SAMPLES OF SWELLING CLAYS AND BITUMEN TO ESTABLISH THE RANGE OF COMPATIBILITY BETWEEN CLAY SWELLING PROPERTIES AND THE RHEOLOGICAL PROPERTIES OF BITUMEN.
3. CONSTRUCTION AND OPERATION OF A TEST RIG TO MONITOR WATER UPTAKES AND SWELLING PRESSURES IN COMBINATIONS OF SWELLING CLAY AND BITUMEN.
4. EXAMINATION OF COMBINATIONS OF THE MATERIALS TO ESTABLISH WHETHER SEALS ARE FORMED AND THE NATURE OF THE SEALS.
5. CALCULATION OF THE WATER, RADIONUCLIDE AND GAS PERMEABILITIES OF THE SEALS : WITH PARTICULAR REFERENCE TO THE RADIONUCLIDES IODINE, TECHNETIUM AND NEPTUNIUM AND TO THE GASES HYDROGEN, METHANE AND CARBON DIOXIDE.
6. ASSESSMENT OF TEST RESULTS IN THE CONTEXT OF MATERIAL PROPERTIES AND FREE SWELLING SPACE THAT COULD BE ACHIEVED IN PRACTICE WITH CURRENT QUALITY CONTROL SYSTEMS IN POTENTIAL REPOSITORIES.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology other engineering and technologies nuclear engineering nuclear waste management
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering control systems
- natural sciences chemical sciences inorganic chemistry transition metals
- natural sciences chemical sciences inorganic chemistry halogens
- natural sciences chemical sciences nuclear chemistry radiation chemistry
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Coordinator
CR9 1PT Croydon
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.