Experimental and Numerical Investigation of Radiation-Induced Volumetric Expansion of Concrete Aggregates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F23%3AN0000080" target="_blank" >RIV/26722445:_____/23:N0000080 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/23:00365976

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S277256932300083X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S277256932300083X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sctalk.2023.100208" target="_blank" >10.1016/j.sctalk.2023.100208</a>

Result language

angličtina

Original language name

Experimental and Numerical Investigation of Radiation-Induced Volumetric Expansion of Concrete Aggregates

Original language description

The radiation-induced volumetric expansion (RIVE) of concrete aggregates is the driving mechanism behind the degradation of the concrete biological shield (CBS) in nuclear power plants (NPPs). The RIVE of concrete aggregates, which are commonly used in NPP CBS, is investigated in this study. The cylindrical samples with the height of 1 and 2 cm and the diameter of 1 cm were manufactured from rocks (concrete aggregates). Prior to irradiation, the mineral composition of the aggregates was determined using X-ray diffraction analysis with Rietveld refinement. Also, the volume of the aggregates was measured before and after irradiation using water pycnometry and Vertex 251HM MicroVu with touch sensors and optical profilometry. The irradiation of the aggregates was performed in the LVR-15 research reactor. The temperature of irradiation was controlled and did not exceed 60 °C. The concrete aggregates were irradiated up to two different dose levels. Simultaneously, the Rigid-Body Spring Model was used in order to develop in-house software for prediction of RIVE of aggregates. The results of experimental investigation and numerical predictions in terms of RIVE showed good correlation. The obtained experimental and numerical data will be used for further development of the software for prediction of radiation-induced concrete deterioration.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

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Publication year

2023

Confidentiality

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

Name of the periodical

Science Talks

ISSN

2772-5693

e-ISSN

2772-5693

Volume of the periodical

6

Issue of the periodical within the volume

May

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

1-9

UT code for WoS article

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EID of the result in the Scopus database

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