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http://dx.doi.org/10.12654/JCS.2019.35.5.09

A Study of Weather Resistance on Dancheong Ground Treatment of Tranditional Wooden Building in Korea  

Kim, Young Kyun (Institute of Conservation of Paintings, Konkuk University)
Han, Kyeong Soon (Institute of Conservation of Paintings, Konkuk University)
Publication Information
Journal of Conservation Science / v.35, no.5, 2019 , pp. 480-493 More about this Journal
Abstract
In this study, the method for processing glue and glue-alum sizing from the dancheong ground treatment was evaluated with respect to weather resistance, and its effect on the conservation of dancheong was analyzed. Viscosity and pH of the glue and glue-alum specimen were measured and classified into three categories(none layer, glue layer, and glue-alum layer), which were further classified according to low concentration(four times for 2%) and high concentration(once for 10%). The base layer formation was subsequently classified into three categories based on pigment adoption, namely, Noerok(celadonite), Seokganju(terra rossa), and Jangdan(red lead). The completed specimen was subjected to a changing-environment experiment for evaluating weather resistance and observing the surface. Color variations were analyzed before and after the experiment. The results indicate that glue-alum sizing comprising 5% alum or 7% alum has strong acidity that can affect the life of dancheong, and the high level of 7% alum makes it difficult to create a solid coating layer. After ultraviolet irradiation, the specimen with 7% alum changes its color to yellow. Furthermore, after moisture absorption and drying, cracks can be observed on the entire specimen surface that corroborate the physical change. Additionally, gas-based corrosion causes marginal surface changes. Hence, the formation of a stable coating layer can be achieved by incorporating a low concentration glue solution that is almost neutral, and the application of glue-alum sizing having 2% concentration can aid in the conservation of dancheong.
Keywords
Dancheong; Glue liquid; Glue-alum sizing; Ground treatment; Weather resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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