Search Results - "Prêt, D."

Influence of the ionic strength and solid/solution ratio on Ca(II)-for-Na + exchange on montmorillonite. Part 1: Chemical measurements, thermodynamic modeling and potential implications for trace elements geochemistry by Tertre, E., Prêt, D., Ferrage, E.

“…Comparison between the experimental data obtained at 2.5 g/L for different total normalities and those predicted by the one-site model. The predicted curves…”
Get full text

15 years of in situ cement–argillite interaction from Tournemire URL: Characterisation of the multi-scale spatial heterogeneities of pore space evolution by Gaboreau, S., Prêt, D., Tinseau, E., Claret, F., Pellegrini, D., Stammose, D.

“…► We characterise the porosity of an in situ cement–argillite interaction. ► Multi-scale characterisation of the pore space is proposed with classic and…”
Get full text

Corrosion at the carbon steel-clay compact interface at 90°C: Insight into short- and long-term corrosion aspects by Schlegel, M.L., Martin, F., Fenart, M., Blanc, C., Varlet, J., Foy, E., Prêt, D., Trcera, N.

“…•Carbon steel was corroded in contact with anoxic clay at 90 °C.•Corrosion damage equaled 8.5 and 29.5 μm at 7 and 76 months, respectively.•Heterogeneous…”
Get full text

Influence of the ionic strength and solid/solution ratio on Ca(II)-for-Na + exchange on montmorillonite. Part 2: Understanding the effect of the m/ V ratio. Implications for pore water composition and element transport in natural media by Tertre, E., Ferrage, E., Bihannic, I., Michot, L.J., Prêt, D.

“…Influence of the Donnan effect on the apparent Na +/Ca 2+ selectivity coefficient value of a montmorillonite: apparent log Kc(Na +/Ca 2+) are plotted as a…”
Get full text

Ion-exchange reactions on clay minerals coupled with advection/dispersion processes. Application to Na+/Ca2+ exchange on vermiculite: Reactive-transport modeling, batch and stirred flow-through reactor experiments by Tertre, E., Hubert, F., Bruzac, S., Pacreau, M., Ferrage, E., Prêt, D.

“…The present study aims at testing the validity of using an Na+/Ca2+ ion-exchange model, derived from batch data to interpret experimental Ca2+-for-Na+ exchange…”
Get full text

Effective electrical conductivity of transversely isotropic rocks with arbitrarily oriented ellipsoidal inclusions by Giraud, A., Sevostianov, I., Kushch, V.I., Cosenza, P., Prêt, D., Barthélémy, J.F., Trofimov, A.

“…•The electrical conductivity tensor of a transversely isotropic material that contains inhomogeneities of arbitrary orientation is determined•Mudstone rock is…”
Get full text

Distribution of Water in Synthetic Calcium Silicate Hydrates by Roosz, C, Gaboreau, S, Grangeon, S, Prêt, D, Montouillout, V, Maubec, N, Ory, S, Blanc, P, Vieillard, P, Henocq, P

“…Understanding calcium silicate hydrates (CSHs) is of paramount importance for understanding the behavior of cement materials because they control most of the…”
Get full text

Indirect estimation of the clay content of clay-rocks using acoustic measurements: New insights from the Montiers-sur-Saulx deep borehole (Meuse, France) by Cosenza, P., Robinet, J.C., Prêt, D., Huret, E., Fleury, M., Géraud, Y., Lebon, P., Villiéras, F., Zamora, M.

“…This work benefited from a comprehensive set of logging and mineralogical data that was acquired from the 2-km-deep EST433 borehole of Montiers-sur-Saulx…”
Get full text

Effect of the local clay distribution on the effective elastic properties of shales by Cosenza, P., Prêt, D., Giraud, A., Hedan, S.

“…•Relationship between elastic constants and spatial clay organization of shales.•Quantitative relationship between elastic properties and microstructure of…”
Get full text

Upscaling the porosity of the Callovo-Oxfordian mudstone from the pore scale to the formation scale; insights from the 3H-PMMA autoradiography technique and SEM BSE imaging by Robinet, J.C., Sardini, P., Siitari-Kauppi, M., Prêt, D., Yven, B.

“…The Callovo-Oxfordian mudstone (Meuse/Haute-Marne, France) is currently considered as the host rock barrier for a deep geological repository. The intimate…”
Get full text

Effect of the local clay distribution on the effective electrical conductivity of clay rocks by Cosenza, P., Prêt, D., Zamora, M.

“…The “local porosity theory” proposed by Hilfer was revisited to develop a “local clay theory” (LCT) that establishes a quantitative relationship between the…”
Get full text

Spatial distribution of porosity and minerals in clay rocks from the Callovo-Oxfordian formation (Meuse/Haute-Marne, Eastern France)—implications on ionic species diffusion and rock sorption capability by Sammartino, S., Bouchet, A., Prêt, D., Parneix, J.-C., Tevissen, E.

“…Imaging techniques, adapted to clay rocks, combined with mathematical correlations of petrophysical parameters bring a new petrographic description of this…”
Get full text

Effects of mineral distribution at mesoscopic scale on solute diffusion in a clay-rich rock: Example of the Callovo-Oxfordian mudstone (Bure, France) by Robinet, Jean-Charles, Sardini, Paul, Coelho, Daniel, Parneix, Jean-Claude, Prêt, Dimitri, Sammartino, Stéphane, Boller, Elodie, Altmann, Scott

“…The mesostructure (millimeter to micrometer scale) of clay‐rich sedimentary rocks is generally characterized by a connected fine‐grained clay matrix embedding…”
Get full text

Influence of the ionic strength and solid/solution ratio on Ca(II)-for-Na super(+) exchange on montmorillonite. Part 1: Chemical measurements, thermodynamic modeling and potential implications for trace elements geochemistry by Tertre, E, Pret, D, Ferrage, E

“…Na/Ca ion-exchange isotherms were performed on a Na-saturated montmorillonite for different constant normalities of the aqueous chloride solution and at two…”
Get full text

Investigating the anisotropic features of particle orientation in synthetic swelling clay porous media by Hubert, Fabien, Bihannic, Isabelle, Prêt, Dimitri, Tertre, Emmanuel, Nauleau, Benoit, Pelletier, Manuel, Demé, Bruno, Ferrage, Eric

“…The present study investigated the anisotropy in the orientation of particles in synthetic swelling clay media prepared from the sedimentation of…”
Get full text

Influence of the ionic strength and solid/solution ratio on Ca(II)-for-Na super(+ exchange on montmorillonite. Part 2: Understanding the effect of the m/V ratio. Implications for pore water composition and element transport in natural media) by Tertre, E, Ferrage, E, Bihannic, I, Michot, L J, Pret, D

“…The aim of the present paper is to clarify previous results [1] showing that selectivity coefficients determined for the exchange of Na super(+ for Ca)…”
Get full text

Indirect estimation of the clay content of clay-rocks using acoustic measurements: New insights from the Montiers-sur-Saulx deep borehole (Meuse, France): Present and past transfers in a sedimentary aquifer -aquitard system: a 2000 meter deep drill-hole in the Mesozoic of the Paris Basin by COSENZA, P, ROBINET, J. C, PRET, D, HURET, E, FLEURY, M, GERAUD, Y, LEBON, P, VILLIERAS, F, ZAMORA, M

Get full text

Mapping and Quantifying the Clay Aggregate Microporosity in Medium- to Coarse-Grained Sandstones Using the super(14)C-PMMA Method by Sardini, P, El Albani, A, Pret, D, Gaboreau, S, Siitari-Kauppi, M, Beaufort, D

“…Microporous aggregates of kaolin minerals and illite are common products filling the intergranular volume (IGV) of deeply buried sandstones. Using BSEi…”
Get full text

Mapping and quantifying the clay aggregate microporosity in medium- to coarse-grained sandstones using the 14C-PMMA Method by Sardini, Paul, El Albani, Abderrazak, Pret, Dimitri, Gaboreau, Stéphane, Siitari-Kauppi, Marja, Beaufort, Daniel

“…Microporous aggregates of kaolin minerals and illite are common products filling the intergranular volume (IGV) of deeply buried sandstones. Using BSEi…”
Get full text