3.8 Article

Technique of Temporary Undisturbed Reinforcement Extraction of Fragile Lacquerware from Shipwrecks

Journal

JOURNAL OF MARITIME ARCHAEOLOGY
Volume 16, Issue 1, Pages 27-38

Publisher

SPRINGER
DOI: 10.1007/s11457-020-09289-3

Keywords

Underwater archaeology; Temporary reinforcement; Undisturbed; Extraction; Fragile lacquerware; Underwater cultural heritage

Categories

Funding

  1. National Key R&D Program of China [2020YFC1520504]

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This study successfully simulated and extracted lacquerware using specific materials and techniques, achieving safe extraction and preservation of fragile underwater artifacts.
A subject of continuous discussion in the field of underwater archaeology is how to safely extract fragile waterlogged artifacts while maintaining their best condition. In this study, lacquerware with fragile wooden body was simulated and extracted, using a triple-package reinforcement technique. Using veratraldehyde as a temporary consolidant, SH-MWCNTs@PU sponge/epoxy resin composite materials as free-form reinforced layers, and double-sided self-adhesive bandages wrapped around the outer layer, the safe underwater extraction and the layer-by-layer removal of the simulated artifacts were studied. The method maximized the preservation of the artifacts' state and information and minimized their damage during removal and transport. This method can be used as a technique for the extraction of fragile artifacts from underwater archaeological excavation sites.

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