Nanomechanical properties of neutron-irradiated concrete
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000075" target="_blank" >RIV/26722445:_____/25:N0000075 - isvavai.cz</a>
Result on the web
<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/10349" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/10349</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2024.50.0030" target="_blank" >10.14311/APP.2024.50.0030</a>
Alternative languages
Result language
angličtina
Original language name
Nanomechanical properties of neutron-irradiated concrete
Original language description
Concrete exposed to reactor irradiation undergoes atomic-level degradation due to the influence of neutrons, secondary gamma rays, and associated gamma heating [1]. The radiation-induced damage decreases the mechanical properties of the concrete and affects its performance as a construction material [2-4]. The concrete samples analyzed in this work were prepared from blended Portland cement CEM II 32.5R mixed with siliceous aggregates with a size of 0 – 2.5 mm. The material underwent irradiation in the LVR-15 research reactor in Research Centre Řež to the target neutron fluence of 1.6- 1.81019n/cm2 (E>0,1 MeV) and received the gamma dose of 500 MGy. The temperatures during irradiation were kept within a range of 50 – 60 °C. The mechanical properties of the individual phases in the cementitious matrix and in the aggregate after neutron irradiation were assessed by the nanoindentation. In order to track the evolution of the nanomechanical properties of the individual components under radiation, a comparison of mechanical properties between the material after neutron irradiation, gamma irradiated concrete (13 MGy), and pristine concrete was made.
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
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA23-05435S" target="_blank" >GA23-05435S: Nanomechanical performance of cementitious composites under radiation impact and variable environmental actions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Acta Polytechnica CTU Proceedings, vol. 50
ISBN
978-800107094-9
ISSN
2336-5382
e-ISSN
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Number of pages
6
Pages from-to
30-35
Publisher name
Czech Technical University in Prague
Place of publication
Praha
Event location
Praha
Event date
May 29, 2024
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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