Effects of Gamma-Ray Irradiation on Hardened Cement Mortar
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351854" target="_blank" >RIV/68407700:21110/21:00351854 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1186/s40069-020-00452-7" target="_blank" >https://doi.org/10.1186/s40069-020-00452-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1186/s40069-020-00452-7" target="_blank" >10.1186/s40069-020-00452-7</a>
Alternative languages
Result language
angličtina
Original language name
Effects of Gamma-Ray Irradiation on Hardened Cement Mortar
Original language description
The effect of gamma-ray irradiation on cement mortar properties is investigated in this study in order to understand the mechanism behind the strength and stiffness reduction, which may be significant according to the available researches. Co-60 irradiation facility with the generating dose rate of 0.1-10 Gy/s and the total activity of 4.4 center dot 10(15) Bq (120 kCi) was used to perform the irradiation, so that the total observed dose of the irradiated samples reached the values ranging from 12.0 to 15.0 MGy. An identical set of control samples was placed in the same laboratory conditions away from gamma radiation. The results of nanoindentation, X-ray diffraction analysis and mercury intrusion porosimetry of the irradiated and the control samples are shown and explained in detail in this study. The nanoindentation creep compliance and the nanoindentation elastic modulus of the irradiated and the control samples do not show any significant difference. The mineral composition obtained using the X-ray diffraction analysis of the irradiated and the control samples is also similar. The pore structure rearrangement and microcrack occurrence, which were evidenced by the mercury intrusion porosimetry and scanning electron microscopy, led to the porosity increase and may be attributed to the significant decrease of compressive strength.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Concrete Structures and Materials
ISSN
1976-0485
e-ISSN
2234-1315
Volume of the periodical
15
Issue of the periodical within the volume
17
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
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UT code for WoS article
000624539900001
EID of the result in the Scopus database
2-s2.0-85102029737