Micromechanical characterization of γ-irradiated cement paste exposed to different relative humidity conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00381433" target="_blank" >RIV/68407700:21110/24:00381433 - isvavai.cz</a>
Alternative codes found
RIV/26722445:_____/25:N0000070
Result on the web
<a href="https://doi.org/10.14311/APP.2024.50.0069" target="_blank" >https://doi.org/10.14311/APP.2024.50.0069</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2024.50.0069" target="_blank" >10.14311/APP.2024.50.0069</a>
Alternative languages
Result language
angličtina
Original language name
Micromechanical characterization of γ-irradiated cement paste exposed to different relative humidity conditions
Original language description
In this study, well-hydrated cement paste samples made from Portland cement CEM I-42.5R were gamma irradiated with a 200 TBq 60Co source, resulting in a total absorbed dose of 13.82MGy. During irradiation, the samples were stored under specific relative humidity (RH) conditions of 11 %, 33 %, 76 %, 96 %, and water. Grid nanoindentation was performed on polished sample surfaces to assess the nanoindentation Young’s modulus of both irradiated and non-irradiated control samples. An increase in Young’s modulus by 9.3 % was observed for irradiated samples at low RH (11 %). Samples stored at medium RHs (33 %, 76 %) showed negligible differences in micromechanical properties. However, a significant decrease in Young’s modulus, approximately 15 %, was measured for samples stored at high RHs (96 %, water).
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
20101 - Civil 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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Local Mechanical Properties 2024
ISBN
978-80-01-07386-5
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
69-73
Publisher name
ACTA Polytechnica CTU
Place of publication
Prague
Event location
Praha
Event date
May 29, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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