Engineering properties of concrete suitable for constructing physical barriers in radioactive waste disposal facilities

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F17%3A00506552" target="_blank" >RIV/61388980:_____/17:00506552 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/17:00312337

Result on the web

<a href="https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=4524" target="_blank" >https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=4524</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2017/62/S26.019" target="_blank" >10.5593/sgem2017/62/S26.019</a>

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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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Article name in the collection

17th International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM 2017

ISBN

978-619-7408-13-3

ISSN

1314-2704

e-ISSN

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Number of pages

8

Pages from-to

"Roč. 17"

Publisher name

STEF92 Technology

Place of publication

Sofia

Event location

Albena

Event date

Jun 29, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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