Journal of Conservation Science (보존과학회지)

The Korean Society Of Conservation Science For Cultural Heritage (한국문화재보존과학회)
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A Study on the Composition for Improving the Performance of Inorganic Binders for Conservation Treatment of Stone Cultural Heritages

석조문화재 보존처리용 무기질바인더의 성능개선을 위한 조성물 연구

  • Lee, Tae Jong (Conservation Science Center, National Research Institute of Cultural Heritage) ;
  • Cho, Ha Jin (Conservation Science Center, National Research Institute of Cultural Heritage) ;
  • Chae, Seung A (Conservation Science Center, National Research Institute of Cultural Heritage) ;
  • Park, Hee Jeong (Conservation Science Center, National Research Institute of Cultural Heritage) ;
  • Kang, San Ha (Division of Restoration Technology, National Research Institute of Cultural Heritage)
  • 이태종 (국립문화재연구소 문화재보존과학센터) ;
  • 조하진 (국립문화재연구소 문화재보존과학센터) ;
  • 채승아 (국립문화재연구소 문화재보존과학센터) ;
  • 박희정 (국립문화재연구소 문화재보존과학센터) ;
  • 강산하 (국립문화재연구소 복원기술연구실)
  • Received : 2020.08.28
  • Accepted : 2020.09.16
  • Published : 2020.10.20
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Abstract

This study attempted to apply a hybrid technology that integrated mineral-based fillers and water-repellent agents to control the efflorescence that results from the use of inorganic binders, for the conservation treatment (surface finishing) of cultural heritage materials made up of stone. Herein, different types of mixing ratios of a filler (silica fume 3.4%) and a water repellent (silane-siloxane 1%) were selected for fabricating the inorganic binder, and it was determined that the ratio selected by weight is effective in controlling efflorescence substances. In addition, it was identified that the inorganic binder with the mixing ratio resulted in a higher compressive strength than the standard (20MPa), and the water permeability resistance was high with low water absorption. The result of ion elution from the bilder showed that a smaller number of ions was observed to affect the efflorescence (directly and indirectly) as compared to that of the control group, which was considered to be relatively stable.

본 연구는 석조문화재 보존처리용(표면마감) 무기질바인더가 암석에 위해한 영향을 미치는 백화현상을 제어하기 위해 광물기반의 충전제와 발수제를 혼합한 하이브리드 기술을 적용하였다. 연구결과, 무기질바인더 성능개선에 효과적인 충전제(실리카흄 3.4%)와 발수제(실란-실록산 1%)를 선정하였으며, 해당 중량비율은 백화물질 제어에 효과가 있는 것으로 판단된다. 또한 압축강도 기준을(20 MPa) 상회하였고 흡수율은 낮아 투수저항성이 높은 것을 확인하였다. 이온용출 결과도 백화현상에 직·간접적으로 작용하는 이온의 검출량이 대조군보다 작게 검출되어 상대적으로 안정적인 것으로 판단된다.

Keywords

References

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