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

Elie Valcke; Steven Smets; Serge Labat; Karel Lemmens; Pierre Van Iseghem; Peter Thomas; Nicole Godon; Patrick Jollivet; Géraldine Parisot; Jean-Pierre Mestre; Norbert Jockwer; Klaus Wieczorek; Claudine Pozo

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

Elie Valcke, Steven Smets, Serge Labat, Karel Lemmens, Pierre Van Iseghem, Peter Thomas, Nicole Godon, Patrick Jollivet, Géraldine Parisot, Jean-Pierre Mestre, Norbert Jockwer, Klaus Wieczorek, Claudine Pozo

Research output › peer-review

Abstract

As part of the study of the performance of the French R7T7 HLW glass in underground disposal conditions, integrated in situ corrosion tests with alpha-doped SON68 glass samples were performed. Two test tubes have been dismantled, and the glass and clay samples have been analysed (mass loss, SEM, EDX, SIMS,…). The results on glass corrosion respond to the expectations and agree with results from laboratory tests and modelling predictions. The glass alteration is about two orders of magnitude higher at 90 °C than at 30 °C. The addition of powdered glass frit to a Ca-bentonite backfill reduces the glass alteration by two orders of magnitude in comparison with the more aggressive backfill, dried Boom Clay. The advantage and limitations of integrated in situ tests are discussed.

Original language	English
Title of host publication	Symposium Proceedings. Scientific Basis for Nuclear Waste Management XXIX
Place of Publication	Warrendale, United States
Pages	67-78
State	Published - Jun 2006
Event	2005 - MRS : 29th International Symposium on the Scientific Basis for Nuclear Waste Management - Gent Duration: 12 Sep 2005 → 16 Sep 2005

Conference

Conference	2005 - MRS
Abbreviated title	MRS2005
Country/Territory	Belgium
City	Gent
Period	2005-09-12 → 2005-09-16

Cite this

@inproceedings{4b41c1f0d1ac4223957f1e5273b96a40,

title = "CORALUS: an integrated in situ test on the corrosion of alpha-active (SON68) HLW glass",

abstract = "As part of the study of the performance of the French R7T7 HLW glass in underground disposal conditions, integrated in situ corrosion tests with alpha-doped SON68 glass samples were performed. Two test tubes have been dismantled, and the glass and clay samples have been analysed (mass loss, SEM, EDX, SIMS,…). The results on glass corrosion respond to the expectations and agree with results from laboratory tests and modelling predictions. The glass alteration is about two orders of magnitude higher at 90 °C than at 30 °C. The addition of powdered glass frit to a Ca-bentonite backfill reduces the glass alteration by two orders of magnitude in comparison with the more aggressive backfill, dried Boom Clay. The advantage and limitations of integrated in situ tests are discussed.",

keywords = "In-situ tests, HLW, Glass corrosion, Diffusion, Boom Clay, Waste disposal",

author = "Elie Valcke and Steven Smets and Serge Labat and Karel Lemmens and {Van Iseghem}, Pierre and Peter Thomas and Nicole Godon and Patrick Jollivet and G{\'e}raldine Parisot and Jean-Pierre Mestre and Norbert Jockwer and Klaus Wieczorek and Claudine Pozo",

note = "Score = 1; 2005 - MRS : 29th International Symposium on the Scientific Basis for Nuclear Waste Management, MRS2005 ; Conference date: 12-09-2005 Through 16-09-2005",

year = "2006",

month = jun,

language = "English",

isbn = "978-1-55899-889-6",

pages = "67--78",

booktitle = "Symposium Proceedings. Scientific Basis for Nuclear Waste Management XXIX",

}

Valcke, E , Smets, S, Labat, S, Lemmens, K, Van Iseghem, P, Thomas, P, Godon, N, Jollivet, P, Parisot, G, Mestre, J-P, Jockwer, N, Wieczorek, K & Pozo, C 2006, CORALUS: an integrated in situ test on the corrosion of alpha-active (SON68) HLW glass. in Symposium Proceedings. Scientific Basis for Nuclear Waste Management XXIX. Warrendale, United States, pp. 67-78, 2005 - MRS , Gent, Belgium, 2005-09-12.

TY - GEN

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

AU - Valcke, Elie

AU - Smets, Steven

AU - Labat, Serge

AU - Lemmens, Karel

AU - Van Iseghem, Pierre

AU - Thomas, Peter

AU - Godon, Nicole

AU - Jollivet, Patrick

AU - Parisot, Géraldine

AU - Mestre, Jean-Pierre

AU - Jockwer, Norbert

AU - Wieczorek, Klaus

AU - Pozo, Claudine

N1 - Score = 1

PY - 2006/6

Y1 - 2006/6

N2 - As part of the study of the performance of the French R7T7 HLW glass in underground disposal conditions, integrated in situ corrosion tests with alpha-doped SON68 glass samples were performed. Two test tubes have been dismantled, and the glass and clay samples have been analysed (mass loss, SEM, EDX, SIMS,…). The results on glass corrosion respond to the expectations and agree with results from laboratory tests and modelling predictions. The glass alteration is about two orders of magnitude higher at 90 °C than at 30 °C. The addition of powdered glass frit to a Ca-bentonite backfill reduces the glass alteration by two orders of magnitude in comparison with the more aggressive backfill, dried Boom Clay. The advantage and limitations of integrated in situ tests are discussed.

AB - As part of the study of the performance of the French R7T7 HLW glass in underground disposal conditions, integrated in situ corrosion tests with alpha-doped SON68 glass samples were performed. Two test tubes have been dismantled, and the glass and clay samples have been analysed (mass loss, SEM, EDX, SIMS,…). The results on glass corrosion respond to the expectations and agree with results from laboratory tests and modelling predictions. The glass alteration is about two orders of magnitude higher at 90 °C than at 30 °C. The addition of powdered glass frit to a Ca-bentonite backfill reduces the glass alteration by two orders of magnitude in comparison with the more aggressive backfill, dried Boom Clay. The advantage and limitations of integrated in situ tests are discussed.

KW - In-situ tests

KW - HLW

KW - Glass corrosion

KW - Diffusion

KW - Boom Clay

KW - Waste disposal

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_31258

M3 - In-proceedings paper

SN - 978-1-55899-889-6

SP - 67

EP - 78

BT - Symposium Proceedings. Scientific Basis for Nuclear Waste Management XXIX

CY - Warrendale, United States

T2 - 2005 - MRS

Y2 - 12 September 2005 through 16 September 2005

ER -