H2 gas production in calcium silicate hydrates: influence of water content and radiation induced defects

Water radiolysis is a major concern for the conditioning of radioactive waste in cement materials. Synthetic calcium silicate hydrate (CSH), the main hydrates of concrete, were synthesized with different C/S ratios and relative humidities. The samples were irradiated under γ- and electron beam irrad...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2022, Vol.191
Main Authors: Haas, Jeremy, Esnouf, Stéphane, Renault, Jean-Philippe, Dannoux-Papin, Adeline, Yin, Chengying
Format: Article
Language:English
Subjects:
Chemical Sciences
Inorganic chemistry
Material chemistry
Radiochemistry
Online Access:Get full text
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Summary:Water radiolysis is a major concern for the conditioning of radioactive waste in cement materials. Synthetic calcium silicate hydrate (CSH), the main hydrates of concrete, were synthesized with different C/S ratios and relative humidities. The samples were irradiated under γ- and electron beam irradiation. The radiolytic hydrogen production has been quantified and the radiation induced defect produced at low temperature characterized by electron paramagnetic resonance. The results show that the H production and defect production are only marginally sensitive to the relative humidity
ISSN:0969-806X
DOI:10.1016/j.radphyschem.2021.109865