보존과학회지 (Journal of Conservation Science)
- 제22권
- /
- Pages.121-134
- /
- 2008
- /
- 1225-5459(pISSN)
- /
- 2287-9781(eISSN)
수용성염이 석조문화재 표면 박리현상에 미치는 영향
Influence of the Soluble Salt on the Exfoliation of the Stone Monument
- Do, Jin-Young (School of Cultural Assets, Gyeongju University) ;
- Lim, Kwon-Woong (School of Cultural Assets, Gyeongju University)
- 투고 : 2008.01.30
- 발행 : 2008.03.20
초록
석조문화재에서 나타나는 박리현상의 발생메커니즘과 염수용액에 의한 화학적 풍화와 관련된 그 원인을 연구하였다. 박리편에 대하여 화학적, 광물학적, 물리적 분석을 수행하여 함유하고 있는 대표적인 염이 석고임을 밝혔다. 염의 작용을 이해하기 위하여 석고와 더불어 용해도가 상이한 황산나트륨을 공극율이 다른 응회암과 화강암에 처리하였다.
The mechanism of stone exfoliation and its cause in relation to chemical weathering by soluble salt were studied. Chemical, mineralogical and physical analysis was performed in exfoliation samples from stone monuments. The representative salt is gypsum in the exfoliation samples. In order to understand the salt reaction, stone samples(tuff and granite) were treated with two type of the salt, gypsum and sodium sulfate, which have different solubility. The capillary water uptakes are slight increased in impregnated with Na2SO4 and weathering simulation of two rock types. It means that the rock is deteriorated in the near of the surface by