Modelling long-term evolution of cementitious materials used in waste disposal

Research output: Contribution to report/book/conference proceedingsChapterpeer-review

Standard

Modelling long-term evolution of cementitious materials used in waste disposal. / Jacques, Diederik; Perko, Janez; Seetharam, Suresh; Mallants, Dirk; Govaerts, Joan.

The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project. 1. ed. Vienna, Austria : IAEA - International Atomic Energy Agency, 2013. p. 1-26 (IAEA Tecdoc; No. 1701).

Research output: Contribution to report/book/conference proceedingsChapterpeer-review

Harvard

Jacques, D, Perko, J, Seetharam, S, Mallants, D & Govaerts, J 2013, Modelling long-term evolution of cementitious materials used in waste disposal. in The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project. 1 edn, IAEA Tecdoc, no. 1701, IAEA - International Atomic Energy Agency, Vienna, Austria, pp. 1-26.

APA

Jacques, D., Perko, J., Seetharam, S., Mallants, D., & Govaerts, J. (2013). Modelling long-term evolution of cementitious materials used in waste disposal. In The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project (1 ed., pp. 1-26). (IAEA Tecdoc; No. 1701). IAEA - International Atomic Energy Agency.

Vancouver

Jacques D, Perko J, Seetharam S, Mallants D, Govaerts J. Modelling long-term evolution of cementitious materials used in waste disposal. In The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project. 1 ed. Vienna, Austria: IAEA - International Atomic Energy Agency. 2013. p. 1-26. (IAEA Tecdoc; 1701).

Author

Jacques, Diederik ; Perko, Janez ; Seetharam, Suresh ; Mallants, Dirk ; Govaerts, Joan. / Modelling long-term evolution of cementitious materials used in waste disposal. The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project. 1. ed. Vienna, Austria : IAEA - International Atomic Energy Agency, 2013. pp. 1-26 (IAEA Tecdoc; 1701).

Bibtex - Download

@inbook{91af3a0adb954bd39023c46fa0d8d50e,
title = "Modelling long-term evolution of cementitious materials used in waste disposal",
abstract = "This report summarizes the latest developments at SCK•CEN in modelling long-term evolution of cementitious materials used as engineered barriers in waste disposal. In a first section chemical degradation of concrete during leaching with rain and soil water types is discussed. Next we show how the leaching model is coupled with a reactive transport module to determine leaching of cement minerals under diffusive or advective boundary conditions. The module also contains a microstructural model from which hydraulic and transport properties of concrete may be calculated dynamically. This coupled model is simplified, i.e. abstracted prior to being applied to large-scale concrete structures typical of a near-surface repository. Characteristic degradation states of concrete are further linked to distribution ratios that describe sorption onto hardened cement via a linear and reversible sorption process. As concrete degrades and pH drops the distribution ratios are continuously updated. We have thus integrated all major chemical and physical concrete degradation processes into one simulator for a particular scale of interest.",
keywords = "Concrete, radioactive waste disposal, chemical degradation, reactive coupled transport",
author = "Diederik Jacques and Janez Perko and Suresh Seetharam and Dirk Mallants and Joan Govaerts",
note = "Score = 3",
year = "2013",
month = dec,
language = "English",
isbn = "978-92-0-139310-4",
series = "IAEA Tecdoc",
publisher = "IAEA - International Atomic Energy Agency",
number = "1701",
pages = "1--26",
booktitle = "The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project",
edition = "1",

}

RIS - Download

TY - CHAP

T1 - Modelling long-term evolution of cementitious materials used in waste disposal

AU - Jacques, Diederik

AU - Perko, Janez

AU - Seetharam, Suresh

AU - Mallants, Dirk

AU - Govaerts, Joan

N1 - Score = 3

PY - 2013/12

Y1 - 2013/12

N2 - This report summarizes the latest developments at SCK•CEN in modelling long-term evolution of cementitious materials used as engineered barriers in waste disposal. In a first section chemical degradation of concrete during leaching with rain and soil water types is discussed. Next we show how the leaching model is coupled with a reactive transport module to determine leaching of cement minerals under diffusive or advective boundary conditions. The module also contains a microstructural model from which hydraulic and transport properties of concrete may be calculated dynamically. This coupled model is simplified, i.e. abstracted prior to being applied to large-scale concrete structures typical of a near-surface repository. Characteristic degradation states of concrete are further linked to distribution ratios that describe sorption onto hardened cement via a linear and reversible sorption process. As concrete degrades and pH drops the distribution ratios are continuously updated. We have thus integrated all major chemical and physical concrete degradation processes into one simulator for a particular scale of interest.

AB - This report summarizes the latest developments at SCK•CEN in modelling long-term evolution of cementitious materials used as engineered barriers in waste disposal. In a first section chemical degradation of concrete during leaching with rain and soil water types is discussed. Next we show how the leaching model is coupled with a reactive transport module to determine leaching of cement minerals under diffusive or advective boundary conditions. The module also contains a microstructural model from which hydraulic and transport properties of concrete may be calculated dynamically. This coupled model is simplified, i.e. abstracted prior to being applied to large-scale concrete structures typical of a near-surface repository. Characteristic degradation states of concrete are further linked to distribution ratios that describe sorption onto hardened cement via a linear and reversible sorption process. As concrete degrades and pH drops the distribution ratios are continuously updated. We have thus integrated all major chemical and physical concrete degradation processes into one simulator for a particular scale of interest.

KW - Concrete

KW - radioactive waste disposal

KW - chemical degradation

KW - reactive coupled transport

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_135240

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_135240_2

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_135240_3

UR - http://knowledgecentre.sckcen.be/so2/bibref/11487

M3 - Chapter

SN - 978-92-0-139310-4

T3 - IAEA Tecdoc

SP - 1

EP - 26

BT - The Behaviours of Cementitious Materials in Long Term Storage and Disposal of Radioactive Waste : Results of a Coordinated Research Project

PB - IAEA - International Atomic Energy Agency

CY - Vienna, Austria

ER -

ID: 319893