From Bulk to Phase: Exploring Gamma Irradiation Effects on Cementitious Materials Using Microscale Mechanical Testing

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000143" target="_blank" >RIV/26722445:_____/25:N0000143 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/25:00387891
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
From Bulk to Phase: Exploring Gamma Irradiation Effects on Cementitious Materials Using Microscale Mechanical Testing
Original language description
In this work, the effects of gamma irradiation on the mechanical properties of the outer product phase were studied using micro-cantilever beams prepared by focused ion beam (FIB) fabrication. Insights into cantilever preparation optimization are provided, along with an analysis of how incorrect FIB ion and electron beam parameters can affect the properties of the studied material phase. Micro-beams prepared from the main hydration product of cement paste, irradiated with a total dose of 13.82 MGy at 11% relative humidity, showed an increase in Young’s modulus (+12.6%), tensile strength (+30.8%), and fracture energy (+97.7%). These enhancements are attributed to water radiolysis induced by gamma radiation, leading to the compaction of globules within the calcium-silicate-hydrate (C-S-H) gel-based phases.
Czech name
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Czech description
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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)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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