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Journal articles
How mobile is tritiated water through unsaturated cement-based materials? New insights from two complementary approaches
Abstract : This work presents two complementary approaches (for low and high desaturation) to study tritiated water (HTO) diffusion through unsaturated cement-based materials. The first approach was based on through-diffusion experiments where suction was controlled by osmosis. In the second approach, diffusion experiments were performed in humidity chambers controlled by under-saturated saline solutions. Results revealed a decrease of effective diffusion coefficient by a factor of 10 from 100% to 23% of saturation degree. Comparison with gaseous H$_2$ suggests that HTO diffuses through unsaturated cement-based materials at rates 4 orders of magnitude lower.
Cited literature [29 references]
https://hal-cea.archives-ouvertes.fr/cea-02421724
Contributor : Amplexor Amplexor <>
Submitted on : Friday, December 20, 2019 - 4:19:47 PM
Last modification on : Thursday, June 25, 2020 - 2:54:34 PM
Long-term archiving on: : Saturday, March 21, 2020 - 7:02:58 PM
Contributor : Amplexor Amplexor <>
Submitted on : Friday, December 20, 2019 - 4:19:47 PM
Last modification on : Thursday, June 25, 2020 - 2:54:34 PM
Long-term archiving on: : Saturday, March 21, 2020 - 7:02:58 PM
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201700002471.pdf
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