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Influence of Burial Environments on Excavated Ceramics  

Jang, Sung-Yoon (Restoration Technology Division, National Research Institute of Cultural Heritage)
Nam, Byeong-Jik (Restoration Technology Division, National Research Institute of Cultural Heritage)
Park, Dae-Woo (Restoration Technology Division, National Research Institute of Cultural Heritage)
Yu, Jae-Eun (Restoration Technology Division, National Research Institute of Cultural Heritage)
Publication Information
Journal of Conservation Science / v.27, no.4, 2011 , pp. 441-450 More about this Journal
Abstract
This study investigated potential damages and conservation methods for the ceramics (without glaze) by examination of physical and chemical effects from the burial environments. For this study, pottery samples excavated from Daejeon Hakha, Asan Eumbong, Hwasung Sogeunsan and Kongju Haengbokdosi were examined with released ions and extraction through desalination. The result showed that the ion inflow into the ceramics was dependent upon the porosity and the absorption of ceramics. The high temperature fired ceramics (over $1,000^{\circ}C$) have low porosity and absorption, therefore almost no salt infiltration during the burial period. However, low temperature fired ceramics (under $800^{\circ}C$) have high porosity and absorption, and most of salts were removed during the desalination. The 40 to 60% of salts were removed in two days and 60 to 80% of slats were released in a week. Furthermore, fertilizer residues such as $K_2SO_4$, in soils were detected in the ceramcis. Also the characteristics of buried soil affected ion infiltration into ceramics. Ceramics buried in sandy soil had relatively less ion contents from buried environments than those in clayey soil. Therefore, low temperature fired ceramics could do not only cleaning but also desalination if it is necessary, and the period could be decided to the condition of ceramics.
Keywords
Burial environments; Ceramics; Desalination;
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Times Cited By KSCI : 3  (Citation Analysis)
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