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Ageing of cementitious materials for storage of nuclear waste

Conference paper
Authors Arezou Babaahmadi
Luping Tang
Zareen Abbas
Gunnar Gustafson
Published in Nordic Concrete Research
Volume Publication No. 43
Pages 429-432
Publication year 2011
Published at Department of Chemistry
Pages 429-432
Language en
Keywords Ageing, cement, concrete, diffusion, leaching, nuclear waste
Subject categories Building engineering, Construction materials

Abstract

This paper presents an on-going research project dealing with ageing process of cementitious materials in a perspective of hundreds and thousands years. As it is risky to use empirical models for extrapolation of performance data from relatively short term experiments, a mechanism-based (chemo-mechanical coupled) model for safer prediction of longevity of concrete in storage facilities for nuclear waste is needed. The project work involves thermodynamic modeling, development of accelerated aging tests, physical, chemical and mineralogical characterization of young and aged cementitious materials, including mechanical, transport (diffusivity) properties, binding (adsorption) capacities and surface complexation (charging) behavior.

Page Manager: Webmaster|Last update: 9/11/2012
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