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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68407700:21110/23:00365976

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

—

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Science Talks

ISSN

2772-5693

e-ISSN

2772-5693

Svazek periodika

6

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—