[HTML][HTML] Chemical degradation of magnesium potassium phosphate cement pastes during leaching by demineralized water: Experimental investigation and modeling

LD Caselles, CCD Coumes, P Antonucci… - Cement and Concrete …, 2024 - Elsevier
The long-term durability of magnesium potassium phosphate cement (MKPC) pastes was
investigated by examining their leaching behavior. MKPC comprised magnesium oxide …

Investigation of self-desiccating cement-based materials for dihydrogen sequestration: Interactions between γ-MnO2/Ag2CO3 getter and the cement matrix

CCD Coumes, O Farcy, H Danis… - Cement and Concrete …, 2024 - Elsevier
Mitigating the release of dihydrogen resulting from metal corrosion or water radiolysis is an
important issue for the disposal of certain types of cemented radwaste packages. The …

[HTML][HTML] Leaching of magnesium potassium phosphate cement pastes under alkaline conditions

LD Caselles, CCD Coumes, P Antonucci… - Applied …, 2024 - Elsevier
Some legacy radioactive waste containing aluminum (Al) metal need to be stabilized and
solidified before their final disposal. Currently, Portland cement (PC) is extensively used for …

Development of a stoichiometric magnesium potassium phosphate cement (MKPC) for the immobilization of powdered minerals

M De Campos, CA Davy, N Djelal, M Rivenet… - Cement and Concrete …, 2021 - Elsevier
Abstract Ordinary Portland Cement (OPC)-based materials are not systematically adapted
for immobilizing industrial hazardous waste, eg for aluminium powder or plutonium waste …

Cerium oxide impact on fresh and hardened properties of cementitious materials

A Bourchy, ALF Yamagata, GL Smith… - Cement and Concrete …, 2023 - Elsevier
Cements used in global nuclear waste treatment, storage, and disposal require thorough
testing of fresh and cured properties to demonstrate regulatory compliance. Using actual …

[HTML][HTML] Stabilization and Solidification of Beryllium Waste: Influence of the Cement Composition on the Corrosion of Be Metal

R Laflotte, C Cau Dit Coumes, J Haas, D Rodrigues… - Materials, 2024 - mdpi.com
Beryllium metal is used as neutron moderator and reflector or multiplier in certain types of
fission or fusion reactors. Dismantling of these reactors will produce radioactive beryllium …

Novel Portland cement matrices incorporating a γ-MnO2/Ag2O hydrogen/tritium getter-structure changes and trap** performance

S Lanier, CA Davy, C Albert-Mercier, O Farcy… - Journal of Nuclear …, 2022 - Elsevier
This study investigates novel Portland cement-based mortars, developed for
hydrogen/tritium trap** and radioactive waste immobilization. They incorporate a γ-MnO …

Etude du comportement sous irradiation γ et électronique de matrices cimentaires et de leurs hydrates constitutifs

L Acher - 2017 - pastel.hal.science
Afin de conditionner les déchets technologiques issus du démantèlement de l'Atelier de
Vitrification de Marcoule au Commissariat à l'Energie Atomique et aux énergies alternatives …

Formulation et caractérisation de mortiers fluides pour le conditionnement de déchets tritiés

O Farcy - 2020 - theses.hal.science
Cette thèse s' inscrit dans un projet visant à formuler et caractériser des mortiers fluides
utilisables pour immobiliser des déchets tritiés qui seront produits dans l'installation de …

Conditionnement des déchets nucléaires de béryllium métallique: réactivité dans différentes matrices cimentaires et comparaison avec l'aluminium

P Bouhier - 2022 - theses.hal.science
Les travaux de recherche réalisés au cours de cette thèse portent sur l'évaluation de la
compatibilité chimique du béryllium métallique avec différentes matrices cimentaires afin de …