Radium retention by blended cement pastes and pure phases (C-S-H and C-A-S-H gels): Experimental assessment and modelling exercises

Autor: Tiziana Missana, Fidel Grandia, Mireia Grivé, Ursula Alonso, Miguel García-Gutiérrez, M. Mingarro, Pierre Henocq, Isabelle Munier, Javier Olmeda, Jean-Charles Robinet, E. Colàs

Publikováno v: Applied Geochemistry. 105:45-54

Cementitious materials are planned to be used in current designs of geological disposal of radioactive waste. Their main function is the structural reinforcement, but they could contribute to the retention of some radionuclides via adsorption and/or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b10c39491761f5c741ce72adda3b96d0
https://doi.org/10.1016/j.apgeochem.2019.04.004

Selenite interactions with iron sulfides

Autor: Laura Simonelli, Alejandro Fernandez-Martinez, Bin Ma, Laurent Charlet, Kaifeng Wang, Benoît Madé, Pierre Henocq

Publikováno v: Goldschmidt2021 abstracts.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4bdfd53ad6c0feabec0ece0794cd3f6
https://doi.org/10.7185/gold2021.6201

Selenite Sorption on Hydrated CEM-V/A Cement in the Presence of Steel Corrosion Products: Redox vs Non-redox Sorption

Autor: Delphine Tisserand, Pierre Henocq, Laurent Charlet, Alejandro Fernandez-Martinez, Kaifeng Wang, Sarah Bureau, Bin Ma, Benoît Madé

Publikováno v: Environmental Science and Technology
Environmental Science and Technology, American Chemical Society, 2020, 54 (4), pp.2344-2352. ⟨10.1021/acs.est.9b06876⟩
Environmental Science and Technology, 2020, 54 (4), pp.2344-2352. ⟨10.1021/acs.est.9b06876⟩

International audience; Reinforced cementitious structures in nuclear waste repositories will act as barriers that limit the mobility of radionuclides (RNs) in case of eventual leakage. CEM-V/A cement, a ternary blended cement with blast furnace slag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a411c5546c01d7f91c97734ff6bbf08f
https://hal.archives-ouvertes.fr/hal-03043990

A sorption model for alkalis in cement-based materials – Correlations with solubility and electrokinetic properties

Autor: Pierre Henocq

Publikováno v: Physics and Chemistry of the Earth, Parts A/B/C. 99:184-193

In cement-based materials, radionuclide uptake is mainly controlled by calcium silicate hydrates (C-S-H). This work presents an approach for defining a unique set of parameters of a surface complexation model describing the sorption behavior of alkal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a81c0693eabecb1e00bfb5f8f7a011b6
https://doi.org/10.1016/j.pce.2017.05.004

Modeling the Osmotic and Activity Coefficients of Lanthanide Nitrate Aqueous Solutions at 298.15 K from Low Molalities to Supersaturation

Autor: Arnault Lassin, Sylvain Guignot, Adeline Lach, Laurent André, Christomir Christov, Pierre Henocq

Publikováno v: Journal of Chemical and Engineering Data
Journal of Chemical and Engineering Data, American Chemical Society, 2019, 64 (1), pp.345-359. ⟨10.1021/acs.jced.8b00859⟩

International audience; This article is a contribution to the modeling of the thermodynamic properties of 15 lanthanide (including lanthanum)-nitrate aqueous binary solutions, from low molalities to saturation (for Ce, Gd, Tb, and Tm) and supersatura

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23111bb25e1fbc2bf82532f6a4a43010
https://hal-insu.archives-ouvertes.fr/insu-02044330