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Material Characteristics and Deterioration Diagnosis of the Pagoda of Buddhist Priest Jeongjin in Bongamsa Temple, Mungyeong, Korea  

Yi, Jeong-Eun (Department of Cultural Heritage Conservation Sciences, Kongju National University)
Lee, Chan-Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University)
Han, Byeong-Il (Research Institute of Cultural Properties, Enguard Co. Ltd.)
Publication Information
Journal of Conservation Science / v.27, no.4, 2011 , pp. 357-369 More about this Journal
Abstract
The Bongamsa Jeongjindaesa Wonotap Pagoda (Treasure No. 171) constructed in the 10th century composed mainly of leucocratic granite with feldspar phenocryst. The major rock-forming minerals are quartz, orthoclase, plagioclase and some biotite. This pogoda is highly damaged physical weathering which are break-out, flakes, exfoliation and cracks. As a result of the infrared thermography on the surface of the pagoda, internal exfoliations occurred to cracks. Also, P-XRF analysis showed that Fe, S, Ca and Mn of concentration were so high in the discoloration parts. The coated part of red pigment has a high five times in Fe content than the fresh rock surface. This result suggests that material of red pigment is hematite. Ultrasonic velocity of the stone properties were from 831 to 2,457 m/s, but it measured velocity of less than 1,000m/s in part of damaged area. Therefore, we suggest for safety conservation for weathered parts of the pagoda, that is in want of rejoin and consolidation treatment about serious damage parts.
Keywords
Leucocratic granite; Discoloration; Break-out; Exfoliation; Ultrasonic velocity; Rejoin; Consolidation treatment;
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Times Cited By KSCI : 11  (Citation Analysis)
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