Mineralogical characterization of the Tournemire argillite after in situ interaction with concretes

Cement/clay interactions – A review: Experiments, natural analogues, and modeling

“…• The study by Tinseau et al (2005) gives us access to the results of 125 years of interaction between tunnel masonry and the Tournemire argillite (France). The interaction has taken place in both the water-saturated and -unsaturated zones.…”

5-year chemico-physical evolution of concrete–claystone interfaces, Mont Terri rock laboratory (Switzerland)

“…This may lead to mineralogical alteration in the barrier system which in turn is expected to locally influence properties like porosity/permeability, swelling pressure or specific retention properties in case of concrete in contact with claystone or compacted bentonite. Laboratory experiments (Adler 2001;Adler et al 2001;Dauzeres et al 2010) and in situ experiments (Read et al 2001;Tinseau et al 2006;Gaboreau et al 2011Gaboreau et al , 2012Techer et al 2012;Jenni et al 2014) demonstrate alteration of both cement paste and claystone adjacent to interfaces. An increase in porosity in the cement paste close to the interface, and clogging in the claystone adjacent to it are commonly predicted by reactive transport modelling (De Windt et al 2008;Marty et al 2009;Kosakowski and Berner 2013;Bradbury et al 2014).…”

Rock alteration in alkaline cement waters over 15 years and its relevance to the geological disposal of nuclear waste

“…Whereas anthropogenic analogue sites (e.g. the Tournemire Tunnel; Tinseau et al, 2006;Techer et al, 2012) bridge the gap between laboratory experiments and natural analogues. A review of many such sites representing timescales of alteration from $30 years to >1 million years is provided by Savage (2011).…”