Community Research and Development Information Service - CORDIS

Abstract

Two practical ways to characterize performance of cements used for radioactive waste containment are firstly, only by chemical modelling, and secondly, by coupling transport and chemical modelling. These methods are investigated in this report. Experimental data acquisition for chloride, sulphate and carbonate attack is made, and the local equilibrium during the degradation is checked. Physicochemical calculations are performed on all the cement systems. The results provide a comprehensive and self-consistent picture at 25 C; it has not been possible to extend the work comprehensively to elevated temperatures. A model based upon the assumptions of local equilibrium and diffusion transport according to Fick's law is being developed to quantify the degradation.

Additional information

Authors: REVERTEGAT E ET AL, CEA, CEN Saclay, Gif-sur-Yvette (FR);GLASSER F P ET AL, Department of Chemistry, University of Aberdeen (GB)
Bibliographic Reference: EUR 17642 EN (1997) 267pp., FS, ECU 46.50
Availability: Available from the (2)
ISBN: ISBN 92-828-0394-5
Record Number: 199710842 / Last updated on: 1997-07-02
Category: PUBLICATION
Original language: en
Available languages: en