Journal
JOURNAL OF CULTURAL HERITAGE
Volume 16, Issue 6, Pages 876-882Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.culher.2015.03.010
Keywords
Waterlogged archaeological wood; Conservation; Dimensional stabilisation; Lactitol; Mannitol; Freeze-drying
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The article presents research on changes in the dimensions of waterlogged archaeological oak and beech wood pre-treated with aqueous solutions of either a mixture of lactitol and trehalose or a mixture of mannitol and trehalose, and then vacuum freeze-dried or dried with the use of the conventional airdrying method. Uptake of impregnants, shrinkage and moisture content in wood after freeze-drying, and changes in dimensions and moisture content in all modified and dried wood samples after its seasoning in the air at relative humidity 50% and temperature of 18 degrees C were determined. It was shown that even at a low uptake of lactitol/trehalo se or mannitol/trehalose mixture and vacuum freeze-drying, a considerable reduction in the shrinkage of the wood under research could be obtained. (C) 2015 Elsevier Masson SAS. All rights reserved.
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