Hostname: page-component-77c89778f8-cnmwb Total loading time: 0 Render date: 2024-07-23T07:06:30.280Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Cement Additives on Radionuclide Mobility

Published online by Cambridge University Press:  01 February 2011

Mårten Dario ,
Mireia Molera  and
Bert Allard
Mårten Dario
Affiliation:
Dept of Water and Environmental Studies, Linköping Univ., SE–581 83 Linköping, SWEDEN
Mireia Molera
Affiliation:
Dept of Chem./Nuclear Chem., Royal Inst. of Technology, SE–100 44 Stockholm, SWEDEN
Bert Allard
Affiliation:
MTM Research Centre, Örebro Univ., SE–701 82 Örebro, SWEDEN
Get access

Abstract

The effects of organic cement additives (totally 7) on the sorption of Eu on cement and TiO2 were measured with variation of the concentration of the additive (0.001–10% of the water phase) and reaction time (up to 420 d). There was a significant reduction of the sorption of Eu on cement as well as on TiO2 after 24 h of exposure time in the presence of additives at levels that would be obtained in a cement/water system if the total load of the additive in the cement (up to 3%) would be released into the water phase. Sorption increased with time and would be expected to reach constant levels after 100–200 d. Storage of the additives at 60 and 120 °C, pH 12.5, for up to 110 d (in order to degrade them) did not lead to significantly altered sorption behaviour.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 639
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Lagerblad, B. and Trägårdh, J., Kärnbränslehantering, Svensk AB, Report TR–95–21, 1994.Google Scholar
2. van Loon, L.R. and Glaus, M.A., Report PSI Bericht Nr. 98–07, 1998.Google Scholar
3. Pavasars, I., Ph.D. dissertation, Linköping University, 1999.Google Scholar
4. Sahai, N. and Sverjensky, D.A., Geochimica Cosmochimica Acta 61, 2801 (1997).Google Scholar
5. Bangun, J. and Adesina, A.A., Applied Catalysis A: General 175, 221 (1998).Google Scholar
6. Kosanic, M.M., Journal of Photochemistry and Photobiology A: Chemistry 119, 119 (1998).Google Scholar
7. Ledin, A., Karlsson, S., and Allard, B., Applied Geochemistry 8, 409 (1993).Google Scholar