Effects of cement additives on radionuclide mobility
2004 (English)In: Mater Res Soc Symp Proc, 2004, 639-644 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
2004. 639-644 p.
, Materials Research Society Symposium Proceedings, ISSN 0272-9172 ; 807
Additives, Cements, Copolymers, Europium compounds, Light scattering, Radioactive wastes, Sorption, Titanium oxides, Water, Artificial pore water, Fibre-glass filters, Gamma-activity, Gamma-counting, Radioisotopes
IdentifiersURN: urn:nbn:se:kth:diva-157564ISI: 000225038400104ScopusID: 2-s2.0-12844272197OAI: oai:DiVA.org:kth-157564DiVA: diva2:770794
Scientific Basis for Nuclear Waste Management XXVII, 15-19 June 2003, Kalmar, Sweden
QC 201412112014-12-112014-12-112014-12-11Bibliographically approved