Français
4. Glass weathering kinetics
Understanding the weathering mechanisms of nuclear glass is primarily aimed at quantifying weathering kinetics and assessing the release rates of radioelements into the environment. The mechanisms described above depend on the following sequence:
transport of the reagent to the reaction site ;
chemical reaction ;
transport of reaction products away from the reaction site.
These transport stages and the various reactions that follow one another or take place in parallel make glass weathering in the broadest sense a complex process, limited either by the fastest sequence for reactions that occur in parallel, or by the slowest sequence for reactions that follow one another (figure
The Ultimate Scientific and Technical Reference
This article is included in
Glasses and ceramics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Glass weathering kinetics
Impact of glass composition on weathering kinetics
Bibliography
Software tools
Software CHESS and HYTEC (geochemical code – transport), developed by the Ecole des Mines de Paris, J. van der Lee, L. De Windt, V. Lagneau, P. Goblet, Comput. Geosci. 29 (2003), pp. 265-275. https://chess.geosciences.mines-paristech.fr/
Events
GDR Glass
Standards and norms
- Methodology for the determination of the leaching behaviour of waste under specified conditions - AFNOR X30-407 – ENV 12920 - 10-06
- Technologie du cycle du combustible nucléaire déchets-test de durabilité chimique en mode Soxhlet. Application aux matériaux issus des procédés de vitrification - AFNOR NF M 60-313 [NF M 60-313] - 12-06
Directory
Laboratories – Design offices – Schools – Research centers (non-exhaustive list)
Joint vitrification laboratory, waste treatment and conditioning research department, CEA Marcoule, Bagnols-sur-Cèze, France
The Ultimate Scientific and Technical Reference
