C.J. Hamon

TL;DR: In this paper, the conditions required to suppress microbial activity in compacted bentonite, such that microbially influenced corrosion of copper waste containers in a future DGR would be insignificant, were examined.

TL;DR: Overall the results indicated a thriving microbial community in the PC water and adjacent clay in contrast to “undisturbed” Opalinus Clay, for which limited evidence for a small viable microbial community has been given in a previous study.

TL;DR: Results suggest that microbial culturability (and in situ activity) in clay-based materials is controlled by a combination of local redox conditions, suitable pore space and moisture availability, and, more generally applicable, very high effective montmorillonite dry densities.

TL;DR: The isothermal test (ITT) as discussed by the authors was used to measure the response of buffer to resaturation by groundwater over a 6.5-year period by placing ∼2.4 m 3 of clay-based buffer in a borehole at the 240 m level of AECL's Underground Research Laboratory.

TL;DR: In this paper, the conditions required to suppress microbial activity in compacted bentonite, such that microbially influenced corrosion (MIC) of copper waste containers, surrounded by compressed bentonite in a future deep geologic repository, would become insignificant.