• Title/Summary/Keyword: Artificially weathered stone

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An Experimental Application of Consolidants Using Artificially Weathered Stones (인공풍화암을 이용한 강화제의 적용실험 연구)

  • Lee, Jae Man;Lee, Myeong Seong;Kim, Jae Hwan;Lee, Mi Hye;Park, Sung Mi
    • Journal of Conservation Science
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    • v.28 no.3
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    • pp.285-296
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    • 2012
  • This study was to assess the effect of consolidation for intension measures of stone cultural heritage using artificially weathered stones. We have prepared four kinds of stones (Gyeongju Namsan Granite, Iksan Granite, Yeongyang Sandstone, Jeongseon Marble), and manufactured fresh, weathered and highly weathered stone samples by thermal shock for each rock type. The samples were treated with three consolidants (Wacker OH 100, Remmers KSE 300, 1T1G) by three methods {immersion, capillary rise (partial immersion), spray}, and tested for weight, porosity, ultrasonic velocity, Equotip hardness and color before and after treatment. As a result, the effect of consolidation was widely influenced by porosity and treatment methods. Wacker OH 100 was shown the highest consolidation effect in almost every stone sample.

Experimental Application of Consolidants Using Artificially Weathered Stones(II): Focusing on Accelerated Weathering Test (인공풍화암을 이용한 강화제의 적용실험 연구(II): 촉진풍화실험을 통한 강화처리 암석의 내구성 평가)

  • Lee, Jae Man;Lee, Myeong Seong;Park, Sung Mi;Lee, Mi Hye;Kim, Jae Hwan
    • Journal of Conservation Science
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    • v.29 no.3
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    • pp.249-259
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    • 2013
  • 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.

Comparative Analysis of Geomorphological and Folklore Approaches to Weathered Landforms - Focusing on Tafoni, Gnamma, Gamsil and Alter - (풍화지형에 대한 지형학적 분석과 고고민속학적 접근에 관한 비교 연구 - 타포니와 나마, 감실과 알터를 중심으로 -)

  • Park, Kyeong
    • Journal of The Geomorphological Association of Korea
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    • v.24 no.3
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    • pp.119-131
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    • 2017
  • Typical weathering landforms and phenomena including tafoni and gnamma are usually interpreted as man-made alteo (praying water bowl) or dragon-alteo by folklore researchers. Despite some terminological ambiguity, they are certainly natural weathering pits and are introduced in our discipline for fifty years, however, unfortunately most of them are interpreted as petroglyphs used and prepared for ritual ceremony. Several seemingly artificially-made rock holes are also found in many places, but most of them are weathered landforms by salt weathering. Author believes that communication effort to use common language and publish more researches in interdisciplinary journals are very essential to propagate scientific achievements made by geomorphologists to other discipline. Also geomorphologists specialized in weathering processes are encouraged to participate in preservation of stone artifacts and archaeological remains.