보존과학회지 (Journal of Conservation Science)

  • 제29권3호
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  • Pages.249-259
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  • 2013
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  • 1225-5459(pISSN)
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  • 2287-9781(eISSN)
한국문화재보존과학회 (The Korean Society Of Conservation Science For Cultural Heritage)
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인공풍화암을 이용한 강화제의 적용실험 연구(II): 촉진풍화실험을 통한 강화처리 암석의 내구성 평가

Experimental Application of Consolidants Using Artificially Weathered Stones(II): Focusing on Accelerated Weathering Test

  • 이재만 (국립문화재연구소 보존과학연구실) ;
  • 이명성 (국립문화재연구소 보존과학연구실) ;
  • 박성미 (국립문화재연구소 보존과학연구실) ;
  • 이미혜 (국립문화재연구소 보존과학연구실) ;
  • 김재환 (국립문화재연구소 보존과학연구실)
  • Lee, Jae Man (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Lee, Myeong Seong (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Park, Sung Mi (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Lee, Mi Hye (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Kim, Jae Hwan (Conservation Science Division, National Research Institute of Cultural Heritage)
  • 투고 : 2013.07.23
  • 심사 : 2013.08.30
  • 발행 : 2013.09.20
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초록

이 연구에서는 암석용 강화제의 중장기적인 처리 효과를 입증하기 위해 동결-융해 및 염을 이용한 촉진풍화실험을 실시하였다. 시료는 열처리를 실시하여 세 등급으로 분류한 경주 남산화강암과 익산 화강암, 영양 사암 및 정선 대리암을 사용하였다. 강화처리는 3종의 강화제(Wacker OH 100, Remmers KSE 300, 1T1G)를 이용하였으며, 양생 후 500주기의 동결-융해 실험과 황산나트륨 포화 수용액을 이용한 50회의 염풍화 실험을 실시하였다. 동결-융해 실험결과, 균열의 성장에 따른 시료의 파괴가 나타났으며, 강화처리의 효과는 최대 약 200주기까지 유지하는 것으로 나타났다. 염풍화 실험 결과, 시료 표면에서 입자의 탈락이 발생하였으며 간극의 확장으로 인해 서서히 팽창하다가 붕괴되었다. 강화처리 시료는 미처리 시료와 비교하여 풍화에 의한 변화가 적은 것으로 나타났으나, 분무처리를 통해서는 지속적인 효과를 기대할 수 없는 것으로 나타났다.

This study was experimented on accelerated weathering test using salt and freeze-thaw to prove effects of consolidants and consolidation for stone cultural heritage. The samples used four kinds of stones (Gyeongju Namsan Granite, Iksan Granite, Yeongyang Sandstone and Jeongseon Marble) which to distributed by three type of weathering grade (Fresh, Weathered Stone and Highly Weathered Stone) added for thermal treatment. The samples were treated with three consolidants (Wacker OH 100, Remmers KSE 300 and 1T1G), and tested by 500 cycles with freezing-thawing and 50 cycles of salt weathering test. As a results of freezing-thawing test, the crack and destruction occurred from some samples. And total immersed samples maintained effect of consolidation to 200 cycles. Also, The rock particle was fall off and gradually destructed by salts weathering test. The consolidated sample relatively had fewer changes by the weathering than not treated sample. The sprayed sample had not continuous effect on weathering.

키워드

참고문헌

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