Recherche d’un liant hydraulique pour le conditionnement de déchets contenant de l’aluminium métallique

Lahalle, H.; Cau-dit-Coumes, Céline; Lambertin, David; Antonucci, P.; Cannes, Céline; Delpech, Salvador García

doi:10.1051/rgn/20146030

Cited by 1 publication

(2 citation statements)

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“…These potential values seem consistent with those presented in the work of Lahalle [ 11 ] obtained on an aluminium sample immersed in a cement matrix based on CEM I.…”

Section: Resultssupporting

confidence: 91%

“…These potential values seem consistent with those presented in the work of Lahalle [11] obtained on an F I G U R E 3 Aluminium potential-pH diagram of aluminium. [8] F The drop in potential in CEM III after approximately 1800 h of immersion is attributed again to the cracking of the matrix leading to a direct contact between the aluminium and the resaturation solution.…”

Section: Ocp and Redox Potential Monitoringsupporting

confidence: 90%

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Hydrogen production through aluminium corrosion in a cement‐based matrix

Bulidon,

Pelissier,

Boissy

et al. 2023

Materials & Corrosion

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In France, deep geological disposal is considered for the storage of high and intermediate‐level long‐lived radioactive wastes. For aluminium, the possibility to encapsulate the wastes in a cement‐based matrix is studied. However, cement being an alkaline environment, aluminium can lose its passivity, starts to corrode leading to hydrogen evolution in the infrastructures and generate a possible explosive hazard after decades of storage if hydrogen can accumulate somewhere in the facility. It is therefore necessary to study the corrosion behaviour of aluminium in the different cements considered for the encapsulation to estimate the possible amount of hydrogen that could be generated through corrosion and design the cement capsules accordingly. This work mainly focused on the reaction occurring at the aluminium‐cement interface. Raman spectroscopy did not highlight significant differences in the nature of the corrosion products forming at the cement/aluminium interface, leading to the conclusion that it is not the chemistry of the cement that is the key factor controlling the corrosion rate but rather the physical properties of the cement matrix.

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“…These potential values seem consistent with those presented in the work of Lahalle [ 11 ] obtained on an aluminium sample immersed in a cement matrix based on CEM I.…”

Section: Resultssupporting

confidence: 91%

Section: Ocp and Redox Potential Monitoringsupporting

confidence: 90%