How mobile is tritiated water through unsaturated cement-based materials? New insights from two complementary approaches - Archive ouverte HAL Access content directly
Journal Articles Applied Radiation and Isotopes Year : 2017

How mobile is tritiated water through unsaturated cement-based materials? New insights from two complementary approaches

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S. Savoye
• Function : Correspondent author
• PersonId : 1061768

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J.C. Robinet
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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.

Dates and versions

cea-02421724 , version 1 (20-12-2019)

Identifiers

• HAL Id : cea-02421724 , version 1
• DOI :

Cite

S. Savoye, A. Rajyaguru, N. Mace, S. Lefevre, G. Spir, et al.. How mobile is tritiated water through unsaturated cement-based materials? New insights from two complementary approaches. Applied Radiation and Isotopes, 2017, 139, pp.98-106. ⟨10.1016/j.apradiso.2018.04.019⟩. ⟨cea-02421724⟩

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