ENGINEERING PROPERTIES OF CONCRETE SUITABLE FOR CONSTRUCTING PHYSICAL BARRIERS IN RADIOACTIVE WASTE DISPOSAL FACILITIES
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312337" target="_blank" >RIV/68407700:21110/17:00312337 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/17:00506552
Result on the web
<a href="http://dx.doi.org/10.5593/sgem2017/62" target="_blank" >http://dx.doi.org/10.5593/sgem2017/62</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2017/62" target="_blank" >10.5593/sgem2017/62</a>
Alternative languages
Result language
angličtina
Original language name
ENGINEERING PROPERTIES OF CONCRETE SUITABLE FOR CONSTRUCTING PHYSICAL BARRIERS IN RADIOACTIVE WASTE DISPOSAL FACILITIES
Original language description
Several concrete mixtures suitable for constructing engineered barriers in radioactive waste disposal facilities are designed and tested. The mix design is based on the utilization of a natural sorbent acting, at the same time, as supplementary cementitious material replacing a part of Portland cement and fine filler capable of radionuclide absorption and fixing. A representative set of engineering properties of the hardened concrete mixes is determined, including the pore size distribution, bulk density, matrix density, open porosity, compressive strength, water absorption coefficient, and apparent moisture diffusivity. Experimental results show that an appropriate dosage of the natural sorbent in the analyzed concrete is within the range of 30-50% of the mass of Portland cement. This level of Portland cement replacement makes possible to utilize effectively the pozzolanic properties of the sorbent and still preserve its necessary amount in the non-hydrated state. The mechanical properties of concrete are then satisfactory for the supposed load, the water-penetration protection ability is sufficient, and the microcrystalline structure of non-hydrated sorbent can provide a sufficient interior pore surface area for fixing the anticipated radionuclide dose.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/GA17-11635S" target="_blank" >GA17-11635S: Cement composite for radionuclide encasement</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
17th International Multidisciplinary Scientific Geoconference SGEM 2017
ISBN
978-619-7408-13-3
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
147-154
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 27, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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