CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass

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CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass. / Valcke, Elie; Lemmens, Karel; Van Iseghem, Pierre; Godon, Nicole; Jollivet, Patrick; Jockwer, Norbert; Wieczorek, Klaus; Pozo, Claudine.

Radioactive waste disposal in geological formations. Proceedings. Vol. 1 Braunschweig, Germany, 2008. p. 187-198.

Research output: Contribution to report/book/conference proceedingsIn-proceedings paperpeer-review

Harvard

Valcke, E, Lemmens, K, Van Iseghem, P, Godon, N, Jollivet, P, Jockwer, N, Wieczorek, K & Pozo, C 2008, CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass. in Radioactive waste disposal in geological formations. Proceedings. vol. 1, Braunschweig, Germany, pp. 187-198, REPOSAFE 2007. International conference on radioactive waste disposal in geological formations, Braunschweig, Germany, 2007-11-05.

APA

Valcke, E., Lemmens, K., Van Iseghem, P., Godon, N., Jollivet, P., Jockwer, N., Wieczorek, K., & Pozo, C. (2008). CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass. In Radioactive waste disposal in geological formations. Proceedings (Vol. 1, pp. 187-198).

Vancouver

Valcke E, Lemmens K, Van Iseghem P, Godon N, Jollivet P, Jockwer N et al. CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass. In Radioactive waste disposal in geological formations. Proceedings. Vol. 1. Braunschweig, Germany. 2008. p. 187-198

Author

Valcke, Elie ; Lemmens, Karel ; Van Iseghem, Pierre ; Godon, Nicole ; Jollivet, Patrick ; Jockwer, Norbert ; Wieczorek, Klaus ; Pozo, Claudine. / CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass. Radioactive waste disposal in geological formations. Proceedings. Vol. 1 Braunschweig, Germany, 2008. pp. 187-198

Bibtex - Download

@inproceedings{08d9d4c245814160a26e659d2c3bc582,
title = "CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass",
abstract = "Integrated in situ corrosion tests with α-doped SON68 (R7T7) glass samples have been performed in the HADES underground research facility in Mol, Belgium. The results on glass corrosion (effect of temperature, effect of addition of powdered glass frit, glass alteration mechanism) relate well to the expectations. Taking into account the loss of part of the alteration layer of the in situ corroded samples and the fact that the hypotheses in the model are not fully valid, the results agree also well with results from surface laboratory tests and modelling predictions with LIXIVER2. The α-doped glass samples showed slightly thicker alteration layers, and thickness seemed to increase with increasing αβγ-activity of the sample. In combination with the decreased glass alteration, the addition of powdered glass frit to a Ca-bentonite decreased the leaching of Np, Pu, and Am. In many cases, the migration profiles of these radionuclides showed a contribution of colloidal transport. Under the thermal gradient in the test tubes, the reaction of Ca-bentonite with the powdered glass frit resulted in the neo-formation of non-swelling 7{\AA} minerals. The relevance of the results for the performance of a final repository for HLW glass is discussed.",
keywords = "in situ tests, HLW, glass corrosion, leaching, migration, diffusion, Boom clay, waste disposal",
author = "Elie Valcke and Karel Lemmens and {Van Iseghem}, Pierre and Nicole Godon and Patrick Jollivet and Norbert Jockwer and Klaus Wieczorek and Claudine Pozo",
note = "Score = 1; REPOSAFE 2007. International conference on radioactive waste disposal in geological formations ; Conference date: 05-11-2007 Through 09-11-2007",
year = "2008",
month = nov,
language = "English",
isbn = "978-3-939355-19-9",
volume = "1",
pages = "187--198",
booktitle = "Radioactive waste disposal in geological formations. Proceedings",

}

RIS - Download

TY - GEN

T1 - CORALUS: an integrated in situ test on the corrosion of α-active (SON68) HLW glass

AU - Valcke, Elie

AU - Lemmens, Karel

AU - Van Iseghem, Pierre

AU - Godon, Nicole

AU - Jollivet, Patrick

AU - Jockwer, Norbert

AU - Wieczorek, Klaus

AU - Pozo, Claudine

N1 - Score = 1

PY - 2008/11

Y1 - 2008/11

N2 - Integrated in situ corrosion tests with α-doped SON68 (R7T7) glass samples have been performed in the HADES underground research facility in Mol, Belgium. The results on glass corrosion (effect of temperature, effect of addition of powdered glass frit, glass alteration mechanism) relate well to the expectations. Taking into account the loss of part of the alteration layer of the in situ corroded samples and the fact that the hypotheses in the model are not fully valid, the results agree also well with results from surface laboratory tests and modelling predictions with LIXIVER2. The α-doped glass samples showed slightly thicker alteration layers, and thickness seemed to increase with increasing αβγ-activity of the sample. In combination with the decreased glass alteration, the addition of powdered glass frit to a Ca-bentonite decreased the leaching of Np, Pu, and Am. In many cases, the migration profiles of these radionuclides showed a contribution of colloidal transport. Under the thermal gradient in the test tubes, the reaction of Ca-bentonite with the powdered glass frit resulted in the neo-formation of non-swelling 7Å minerals. The relevance of the results for the performance of a final repository for HLW glass is discussed.

AB - Integrated in situ corrosion tests with α-doped SON68 (R7T7) glass samples have been performed in the HADES underground research facility in Mol, Belgium. The results on glass corrosion (effect of temperature, effect of addition of powdered glass frit, glass alteration mechanism) relate well to the expectations. Taking into account the loss of part of the alteration layer of the in situ corroded samples and the fact that the hypotheses in the model are not fully valid, the results agree also well with results from surface laboratory tests and modelling predictions with LIXIVER2. The α-doped glass samples showed slightly thicker alteration layers, and thickness seemed to increase with increasing αβγ-activity of the sample. In combination with the decreased glass alteration, the addition of powdered glass frit to a Ca-bentonite decreased the leaching of Np, Pu, and Am. In many cases, the migration profiles of these radionuclides showed a contribution of colloidal transport. Under the thermal gradient in the test tubes, the reaction of Ca-bentonite with the powdered glass frit resulted in the neo-formation of non-swelling 7Å minerals. The relevance of the results for the performance of a final repository for HLW glass is discussed.

KW - in situ tests

KW - HLW

KW - glass corrosion

KW - leaching

KW - migration

KW - diffusion

KW - Boom clay

KW - waste disposal

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_94559

UR - http://knowledgecentre.sckcen.be/so2/bibref/5534

M3 - In-proceedings paper

SN - 978-3-939355-19-9

VL - 1

SP - 187

EP - 198

BT - Radioactive waste disposal in geological formations. Proceedings

CY - Braunschweig, Germany

T2 - REPOSAFE 2007. International conference on radioactive waste disposal in geological formations

Y2 - 5 November 2007 through 9 November 2007

ER -

ID: 74509