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Expansion of Cementitious Materials Exposed to Sulfate Solutions

Published online by Cambridge University Press:  25 February 2011

James M. Pommersheim  and
James R. Clifton
James M. Pommersheim
Affiliation:
Civil Engineering Dept., Bucknell University, Lewisburg, PA 17837
James R. Clifton
Affiliation:
National Institute of Science and Technology, Gaithersburg, MD 20899
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Abstract

Disposal of low-level radioactive waste in concrete vaults buried underground is being considered in the United States and a potentially significant degradation process is sulfate attack. The results of experimental studies and of modeling of the kinetics of sulfate attack of cement-based materials are given. It was concluded that the expansion process involves a two-stage mechanism. The first stage is likely to be diffusion controlled and the second stage appears to be acceleratory due to the development and spread of cracks.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 333: Symposium V – Scientific Basis for Nuclear Waste Management XVII , 1993 , 363
Copyright
Copyright © Materials Research Society 1994

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References

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