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Alkali-Activated Fly Ash-Slag Cement Based Nuclear Waste Forms

Published online by Cambridge University Press:  01 January 1992

W. Jiang,
X. Wu and
D.M. Roy
W. Jiang
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
X. Wu
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
D.M. Roy
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Abstract

This paper is based on the results of an in-progress research project on Alkali-Activated Cement System at MRL. The objective of this research is to establish the potential for large volume use of fly ash and slag as main components of the cement system. Alkali-activated Fly ash-slag Cement (AFC) was studied as a matrix for immobilization of nuclear waste. AFC is characterized by high early strength, high ultimate strength, low porosity, lower solubilities of the hydrates, and high resistance to chemical corrosion as well as to freezing and thawing. All these advanced properties are particularly favorable to the immobilization the nuclear wastes.

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References

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