Water Absorption Test Accompanied by Dynamic Neutron Radiography of Gamma-irradiated Cement Samples

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333673" target="_blank" >RIV/68407700:21110/19:00333673 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Water Absorption Test Accompanied by Dynamic Neutron Radiography of Gamma-irradiated Cement Samples
Original language description
This study is focused on the experimental investigation of the effect of early-age gamma-ray irradiation on the permeability of cement samples. Five samples set were manufactured and irradiated at early age. The hydration process was stopped using acetone in the sample age of 15 hours. The effect of gamma-ray irradiation on cement samples permeability was investigated with the help of water absorption test accompanied by dynamic neutron radiography imaging. The calibration of water thickness was performed on wedge-shaped phantom sample. The fitted calibration function was used for quantification of absorbed water content in the investigated cement samples. The calculated values have good correlation with the measured values. From the calculated water distribution curves over the sample height it can be seen that water penetrates in the irradiated more than 8 hours sample slightly faster and deeper with comparison to the not irradiated sample, however the maximum water content is somewhat lower, these can be an indirect evidence of lower porosity of irradiated sample and consequently higher pore pressure due to reduction of pore diameter.
Czech name
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Czech description
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Project
<a href="/en/project/8F17002" target="_blank" >8F17002: The Effect of Chemical Composition of Concrete on Its Long-term Performance in Irradiated</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
BRITTLE MATRIX COMPOSITES 12
ISBN
978-83-65550-21-7
ISSN
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e-ISSN
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Number of pages
11
Pages from-to
211-221
Publisher name
Polish Academy of Science, Institute of Fundamental Technological Research
Place of publication
Warszawa
Event location
Warsaw
Event date
Sep 23, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000508009200022

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