건축문화유산 보수용 석회의 찹쌀풀 첨가에 따른 미세조직 변화 및 모르타르강도 특성
Microstructure and Mortar Strength Characteristic of Lime Added with Glutinous Rice Paste Used for Repairing Architectural Cultural Heritage
5
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
역사적으로 석회 모르타르의 기능성을 높이기 위해 다양한 첨가물이 활용되었으며 첨가물 중에서 찹쌀풀의 기능과 재료적 특성에 대해 파악하였다. 본 연구에서는 석회 페이스트와석회 모르타르의 시료를 제작하여 양생 기간 다양한 환경 조건에 노출한 후 미세조직 변화및 강도 특성에 대해 종합적인 고찰을 수행하였다. 찹쌀풀 첨가의 영향으로 촉진탄산화 환경에서 생성된 방해석 광물을 X선 회절 분석한 결과 약 2.1배 높게 나타났다. 방해석 결정립의 평균크기는 약 38.90 nm로 18%로 작아지는 경향을 나타냈다. 또한, 석회의 평균 입자 크기는 약17.93 µm로 20% 감소하는 것으로 확인되었다. 실내양생 조건에서 찹쌀풀은 석회 모르타르의건조수축률을 약 6.8배 감소시켰다. 강도분석 결과 압축은 2.99(±0.24) MPa로 33% 증가, 인장은0.35(±0.03) MPa로 9% 증가, 휨은 1.11(±0.06) MPa로 22% 증가하는 것으로 나타나 기계적 강도가 모두 우세한 것으로 확인되었다.
Abstract
Historically, various additives were used to increase the functionality of lime mortar,and among the additives, the function and material properties of glutinous rice paste were identified. In this study, samples of lime paste and lime mortar were manufactured and exposed to variousenvironmental conditions during the curing period, and then a comprehensive review was conductedon microstructural changes and strength characteristics. X-ray diffraction analysis of calcite mineralsgenerated in an accelerated carbonation environment due to the addition of glutinous rice grass showedthat it was about 2.1 times higher. The average size of calcite crystal grains was about 38.90 nm,which tended to decrease by 18%. Additionally, the average particle size of lime was confirmed tobe reduced by 20% to about 17.93 µm. Under indoor curing conditions, glutinous rice paste reducedthe drying shrinkage rate of lime mortar by about 6.8 times. As a result of the strength analysis,compression increased by 33% to 2.99(±0.24) MPa, tensile strength increased by 9% to 0.35(±0.03)MPa, and bending increased by 22% to 1.11(±0.06) MPa, confirming that all mechanical strengthswere superior.
참고문헌 (36)
- Adnyani, N. M. L. G., "Synthesis of nano calcium carbonate from natural CaO by CO2 fine bubbling method", 2nd International Conference and Exhibition on Powder Technology (ICePTi) 2019, pp.080010~ (2020)
- 안선아, "문화재 보수용 석회의 제조 단계별 조건에 따른 재료적 특성", 대한건축학회논문집, 37(12), pp.339~346 (2021), 대한건축학회
- Gashti, M. P., "Mineralization of calcium phosphate crystals in starch template inducing a brushite kidney stone biomimetic composite", Crystal growth & design, 13(5), pp.2166~2173 (2013)
- Huang, H. K., "Correlated changes in structure and viscosity during gelatinization and gelation of tapioca starch granules", IUCrJ, 1(6), pp.418~428 (2014)
- 강산하, "들기름 첨가에 따른 전통석회 재현시편의 특성 변화", 대한건축학회논문집, 38(5), pp.259~267 (2022), 대한건축학회
- 김은경, "조선 후기 관영공사에 사용된 석회 용어 및 공법 연구", 대한건축학회논문집, 38(5), pp.83~94 (2022), 대한건축학회
- Langford, J. I., "Scherrer after sixty years : a survey and some new results in the determination of crystallite size", Journal of applied crystallography, 11(2), pp.102~113 (1978)
- Lee, J. B., "History of weights and measure in the korea", pp.352~ (2016), Somyong Publishing
- Luo, Y., "Investigation of sticky-rice lime mortar of the Horse Stopped Wall in Jiange", Heritage Science, 1, pp.1~5 (2013)
- Monshi, A., "Modified Scherrer equation to estimate more accurately nano-crystallite size using XRD", World Journal of Nano Science and Engineering, 2(3), pp.154~160 (2012)
- Mydin, M. A. O., "Influence of sticky rice and jaggery sugar addition on lime mortar", Engineering, Technology & Applied Science Research, 12, pp.8359~8365 (2022)
- 남병직, "석회 종류와 배합비 별 문화재 보수용 석회 모르타르의 초기거동특성과 수축특성 연구", 보존과학회지, 36(6), pp.456~474 (2020), 한국문화재보존과학회
- Lime of the Joseon dynasty recorded in the OegyujanggakUigwe, "National Research Institute of Cultural Heritage", Munjin, 56~60 (2020)
- Traditional lime mortar and plaster: Restoration of historic buildings, "National Research Institute of Cultural Heritage", Hive, 155~179 (2021)
- Otero, J., "Sticky rice –nanolime as a consolidation treatment for lime mortars", Journal of Materials Science, 54, pp.10217~10234 (2019)
- Song, J. Y., "Solubility patterns and gelatinization properties of waxy rice starches", Applied Biological Chemistry, 41, pp.516~521 (1998)
- Song, Y. X., "Tiangong Kaiwu(天工開物)", pp.625~626 (1997), Jeontong Munhwasa
- Swenson, E. G., "Mechanism of the carbonatation shrinkage of lime and hydrated cement", Journal of Applied Chemistry, 18(4), pp.111~117 (1968)
- Wei, G., "An experimental study on application of sticky rice-lime mortar in conservation of the stone tower in the Xiangji Temple", Construction and Building Materials, 28, pp.624~632 (2012)
- "WMO Greenhouse Gas Bulletin: The state of greenhouse gases in the atmosphere based on global observations through 2020, 17" (2021)[URL]
- Xiao, Y., "Properties, characterization, and decay of sticky rice–lime mortars from the Wugang Ming dynasty city wall(China)", Materials Characterization, 90, pp.164~172 (2014)
- Yang, F., "Traditional mortar represented by sticky rice lime mortar : One of the great inventions in ancient China", Science in China Series E : Technological Sciences, 52, pp.1641~1647 (2009)
- Yang, F., "Study of sticky rice-lime mortar technology for the restoration of historical masonry construction", Accounts of Chemical Research, 43, pp.936~944 (2010)
- Yang, R., "Microstructural insights into the lime mortars mixed with sticky rice sol-gel or water : A comparative study", Construction and Building Materials, 125, pp.974~980 (2016)
- Yang, T., "Investigations into the function of sticky rice on the microstructures of hydrated lime putties", Construction and Building Materials, 102, pp.105~112 (2016)
- Zeng, Y., "A case study and mechanism investigation of typical mortars used on ancient architecture in China", Thermochimica Acta, 473, pp.1~6 (2008)
- Zhai, K., "A new proposed semi-quantitative method for the organic additives analysis in traditional lime mortar", Journal of Cultural Heritage, 62, pp.284~292 (2023)
- Zhang, K., "Textual and experimental studies on the compositions of traditional chinese organic", Archaeometry, 56, pp.100~115 (2014)
- Zhao, P., "Material characteristics of ancient chinese lime binder and experimental reproductions with organic admixtures", Construction and Building Materials, 84, pp.477~488 (2015)
- Zhao, Q., "Amylopectin regulated mineralization of calcium carbonate and its application in removing of Pb(II)", Crystal Research & Technology, 56, pp.2100012~ (2021)
- Zheng, Y., "A new method in detecting the sticky rice component in traditional chinese tabia", Archaeometry, 58, pp.218~229 (2016)
- Korean Industrial Standards, "Standard test method for accelerated carbonation of concrete. KS F 2584", ~ (2020)
- Korean Industrial Standards, "2020, Standard test method for length change of mortar and concrete. KS F 2424", ~ (2020)
- Korean Industrial Standards, "Test method for compressive strength of hydraulic cement mortar. KS L 5105", ~ (2022)
- Korean Industrial Standards, "Test method for tensile strength of hydraulic cement mortars. KS L 5104", ~ (2022)
- Korean Industrial Standards, "Cement-Test methodsDetermination of strength. KS L ISO679", ~ (2022)