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CHEMVAL is an international geochemical exercise, which aims at the application and validation of predictive computer programs describing the chemistry of radionuclides in the geosphere, as part of the project MIRAGE. Stage I concerns the application of aqueous speciation codes to representative cement, water and groundwater compositions. This report describes the methodology and the results of the verification exercise and summarises work in progress on the thermodynamic database. The reasons for variation in modelling results have been identified. Problems associated with chemical equilibrium programs and their use have been distinguished from differences in the supporting database. It is concluded that the codes employed during the first part of the exercise are suitable for the validation studies in Stage 2.

Additional information

Authors: READ D, WS Atkins E-S, Woodcote Grove, Ashley Road, Epsom, Surrey KT18 5BW (GB);BROYD T W, WS Atkins E-S, Woodcote Grove, Ashley Road, Epsom, Surrey KT18 5BW (GB)
Bibliographic Reference: EUR 12237 EN (1989) FS, 364 pp., ECU 32.50
Availability: (2)
ISBN: ISBN 92-826-0676-7;CD-NA-
Record Number: 198911117 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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