Strategic choices in the Belgian supercontainer design and its treatment in a safety case

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

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Strategic choices in the Belgian supercontainer design and its treatment in a safety case. / Van Geet, Maarten; Weetjens, Eef.

Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions.. Paris, France, 2012. p. 159-164 (NEA/RWM report; No. NEA/RWM/R(2012)3).

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

Harvard

Van Geet, M & Weetjens, E 2012, Strategic choices in the Belgian supercontainer design and its treatment in a safety case. in Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions.. NEA/RWM report, no. NEA/RWM/R(2012)3, Paris, France, pp. 159-164, Cementitious Materials in Safety Cases for Geological Repositories for Radioactive Waste: Role, Evolution and Interactions, Brussels, Belgium, 2009-11-17.

APA

Van Geet, M., & Weetjens, E. (2012). Strategic choices in the Belgian supercontainer design and its treatment in a safety case. In Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions. (pp. 159-164). (NEA/RWM report; No. NEA/RWM/R(2012)3). Paris, France.

Vancouver

Van Geet M, Weetjens E. Strategic choices in the Belgian supercontainer design and its treatment in a safety case. In Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions.. Paris, France. 2012. p. 159-164. (NEA/RWM report; NEA/RWM/R(2012)3).

Author

Van Geet, Maarten ; Weetjens, Eef. / Strategic choices in the Belgian supercontainer design and its treatment in a safety case. Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions.. Paris, France, 2012. pp. 159-164 (NEA/RWM report; NEA/RWM/R(2012)3).

Bibtex - Download

@inproceedings{a308bd18cb024838874c924df1631d2a,
title = "Strategic choices in the Belgian supercontainer design and its treatment in a safety case",
abstract = "In Belgium, geological disposal in plastic clay is the reference solution to the safe long-term management of high-level and long-lived radioactive waste. Boom Clay is currently considered the reference formation for hosting a geological repository. Up to 2004, the reference engineered barrier design for vitrified high-level waste and spent fuel consisted of galleries in which the waste was placed in a central steel disposal tube and the remaining space backfilled by bentonite blocks. In recent years there has been a re-evaluation of the reference design, and the Belgian waste management agency ONDRAF/NIRAS now opts for a design based on a carbon steel overpack surrounded by a concrete buffer made of Ordinary Portland Cement. The use of massive amounts of cementitious materials in the repository imposes a high alkaline environment which ensures passivation of the carbon steel overpack. Moreover, the use of Supercontainers as separate shielded entities should facilitate underground operations for the workforce. This paper further explains the drivers of this design option and the implications of this so-called Supercontainer design in terms of long-term radiological safety.",
keywords = "safety concept, safety functions, repository design, engineered barrier system, cement, concrete, safety assessment",
author = "{Van Geet}, Maarten and Eef Weetjens",
note = "Score = 3",
year = "2012",
month = "3",
language = "English",
series = "NEA/RWM report",
number = "NEA/RWM/R(2012)3",
pages = "159--164",
booktitle = "Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions.",

}

RIS - Download

TY - GEN

T1 - Strategic choices in the Belgian supercontainer design and its treatment in a safety case

AU - Van Geet, Maarten

AU - Weetjens, Eef

N1 - Score = 3

PY - 2012/3

Y1 - 2012/3

N2 - In Belgium, geological disposal in plastic clay is the reference solution to the safe long-term management of high-level and long-lived radioactive waste. Boom Clay is currently considered the reference formation for hosting a geological repository. Up to 2004, the reference engineered barrier design for vitrified high-level waste and spent fuel consisted of galleries in which the waste was placed in a central steel disposal tube and the remaining space backfilled by bentonite blocks. In recent years there has been a re-evaluation of the reference design, and the Belgian waste management agency ONDRAF/NIRAS now opts for a design based on a carbon steel overpack surrounded by a concrete buffer made of Ordinary Portland Cement. The use of massive amounts of cementitious materials in the repository imposes a high alkaline environment which ensures passivation of the carbon steel overpack. Moreover, the use of Supercontainers as separate shielded entities should facilitate underground operations for the workforce. This paper further explains the drivers of this design option and the implications of this so-called Supercontainer design in terms of long-term radiological safety.

AB - In Belgium, geological disposal in plastic clay is the reference solution to the safe long-term management of high-level and long-lived radioactive waste. Boom Clay is currently considered the reference formation for hosting a geological repository. Up to 2004, the reference engineered barrier design for vitrified high-level waste and spent fuel consisted of galleries in which the waste was placed in a central steel disposal tube and the remaining space backfilled by bentonite blocks. In recent years there has been a re-evaluation of the reference design, and the Belgian waste management agency ONDRAF/NIRAS now opts for a design based on a carbon steel overpack surrounded by a concrete buffer made of Ordinary Portland Cement. The use of massive amounts of cementitious materials in the repository imposes a high alkaline environment which ensures passivation of the carbon steel overpack. Moreover, the use of Supercontainers as separate shielded entities should facilitate underground operations for the workforce. This paper further explains the drivers of this design option and the implications of this so-called Supercontainer design in terms of long-term radiological safety.

KW - safety concept

KW - safety functions

KW - repository design

KW - engineered barrier system

KW - cement

KW - concrete

KW - safety assessment

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_120884

UR - http://knowledgecentre.sckcen.be/so2/bibref/9033

M3 - In-proceedings paper

T3 - NEA/RWM report

SP - 159

EP - 164

BT - Cementitious materials in safety cases for geological repositories for radioactive waste: role, evolution and interactions.

CY - Paris, France

ER -

ID: 72495