Vacuum freeze-drying of waterlogged archaeological wood for conservators

Pedersen, N. B. (Underviser), Poul Jensen (Underviser), Lars Brock Andersen (Underviser)

Aktivitet: Andre aktivitetstyperAndet


Course description:
The course attempts to give a solid but comprehensible theoretical background in the field of waterlogged archaeological wood conservation with PEG impregnation followed by vacuum freeze-drying. Theoretical sessions will be combined with small practical measuring exercises linked to the processes in the conservation procedure. The course is both directed towards newcomers within the field and practicing conservators wanting a brush up on the theoretical background. The course will include the following subjects: Material characterisation of waterlogged archaeological wood, why and how to dry waterlogged wood, basic principles of and theoretic model for vacuum freeze-drying, freeze-drying of waterlogged porous collapsible materials, impregnation theory, phase diagrams for water and PEG, requirements for the freeze-dryer system, and process control. It will be possible for participant to bring their own sample material and/or impregnation solution to use in for the practical exercises. Detailed program will be announced in June 2018.
Periode4 sep. 20187 sep. 2018
BegivenhedstitelVacuum freeze-drying of waterlogged archaeological wood for conservators: null
Grad af anerkendelseInternational