Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Material Properties of Lime for Repair of Cultural Heritage According to Calcination and Slaking Conditions

문화재 보수용 석회의 제조 단계별 조건에 따른 재료적 특성

  • 안선아 (국립문화재연구원 복원기술연구실) ;
  • 강소영 (국립문화재연구원 복원기술연구실)
  • Received : 2021.10.02
  • Accepted : 2021.11.26
  • Published : 2021.12.30
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Abstract

Lime is a material commonly used for various functions in the repair of architectural cultural properties, but there are few studies and data on traditional methods. And it is a difficult material to handle because its physical properties vary depending on various environmental factors, but there is no clear standard for use at the site of repairing cultural properties. In order to prepare a standard that can be applied to the repair site of cultural properties, changes in the physical properties of lime according to the conditions were analyzed and investigated. As a result of analyzing the characteristics of limestone in the two regions and calcining under different temperature conditions, it was found that the calcination degree and reactivity were different due to the difference in crystallinity and textures, affecting the quality of quicklime. In addition, as a result of analyzing the particle size of slaked lime according to the amount of slaking water, powder type quicklime was advantageous for wet slaking, and the minimum amount of slaking water to improve workability was 128% (W/L) or more by weight. On the other hand, it was found that lump-type quicklime is more advantageous for dry than wet, and is stable when the aging period is at least 1 month.

Keywords

Acknowledgement

이 연구는 국립문화재연구소 문화유산조사연구(R&D)의 일환으로 진행되었습니다.

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