| Title |
Material Properties of Lime for Repair of Cultural Heritage According to Calcination and Slaking Conditions |
| Authors |
안선아(Ahn, Sun-Ah) ; 강소영(Kang, So-Yeong) |
| DOI |
https://doi.org/10.5659/JAIK.2021.37.12.339 |
| Keywords |
Lime; Limestone; Quicklime; Hydrated lime; Slaked lime; Calcination; Hydration; Slaking |
| 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. |