Journal of Conservation Science (보존과학회지)

The Korean Society Of Conservation Science For Cultural Heritage (한국문화재보존과학회)
권호 표지

Material Characteristics and Making Techniques of the Goryeo Roof Tiles from Oegol Site of Tangjeong Area in Asan, Korea

아산 탕정지구 외골유적 출토 고려 기와의 재료과학적 특성과 제작기법

  • Kim, Ji-Young (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Lee, Chan-Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Cho, Seon-Yeong (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Gim, Ran-Hui (Conservation Science Lab, National Museum of Gongju) ;
  • Lee, Ho-Hyeong (Chungcheong Cultural Properties Research Institute)
  • 김지영 (공주대학교 문화재보존과학과) ;
  • 이찬희 (공주대학교 문화재보존과학과) ;
  • 조선영 (공주대학교 문화재보존과학과) ;
  • 김란희 (국립공주박물관 보존과학실) ;
  • 이호형 ((재)충청문화재연구원)
  • Received : 2009.08.04
  • Accepted : 2009.09.02
  • Published : 2009.09.20
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Abstract

The Goryeo roof tiles from the Oegol site in Tangjeong, Asan are classified into three groups in color such as gray, red yellow and gray-yellow groups, respectively. While each group of tiles shows characteristic specific gravity, absorption ratio, LOI and vitrification degree, mineral content and distribution, and chemical composition are generally homogeneous among all groups of roof tiles. Also, all roof tiles and soils from the site show similar geochemical behavior of elements and clay-mineralization degree. This indicates that the soil from the site is probable to be a raw material of the roof tiles. Firing temperature of the roof tiles is estimated as 950 to $1,050^{\circ}C$ for the gray group, 800 to $900^{\circ}C$ for the red yellow group, and 900 to $950^{\circ}C$ for the gray-yellow group. In conclusion, roof tiles from the Oegol site is interpreted to be made of local clay without additive minerals, applying various firing conditions and standardized purifying process of raw clay materials.

아산 탕정지구 외골유적에서 출토된 고려시대 와편은 외면과 속심의 색상에 따라 회색 계열, 적황색 계열, 회색-황색 계열로 세분된다. 각 그룹별 와편들은 특징적인 가비중, 흡수율, 작열감량 및 기질의 유리질화 정도를 보이나, 혼입광물의 함량과 분포 및 화학조성은 출토유구와 색상에 관계없이 비교적 균질하게 나타났다. 또한 모든 와편의 지구화학적 거동특성과 점토화 정도는 유사하며, 유적지에서 수습된 토양과도 거의 동일한 진화경향을 보였다. 와편의 소성온도는 회색 계열은 $950{\sim}1,050^{\circ}C$, 적황색 계열은 $800{\sim}900^{\circ}C$, 회색-황색 계열은 $900{\sim}950^{\circ}C$의 범위를 갖는 것으로 해석되었다. 이를 통해 와편은 유적지 일대에 분포하는 점토질 토양을 채취하여 비짐광물을 거의 첨가하지 않은 채 다양한 소성환경에서 제작되었으며, 태토의 가공과 정선 과정은 비교적 표준화된 공정이 적용되었을 것으로 추정된다.

Keywords

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