Japan Geoscience Union Meeting 2022

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[E] Poster

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS04] Geomaterials in cultural heritage: investigation techniques, weathering, and conservation

Thu. Jun 2, 2022 4:00 PM - 6:00 PM Online Poster Zoom Room (18) (Ch.18)

convener:Celine Thomachot Schneider(University of Reims-Champagne-Ardenne), convener:Luigi Germinario(University of Padova), patricia vazquez(University of Reims Champagne Ardenne), convener:Miguel Gomez-Heras(Universidad Autonoma de Madrid), convener:Akos Torok(Department of Engineering Geology and Geotecnics, Budapest University of Technology and Economics), convener:Tetsyuya Waragai(Graduate School of Science and Engineering, Nihon University), Chairperson:Tetsuya Waragai(Graduate School of Science and Engineering, Nihon University)


11:00 AM - 1:00 PM

[MIS04-P03] A study on the applicability of nondestructive survey in Taya cave

*Chiaki T. Oguchi1, Sota Noshiro2, Yasuhiko TAMURA3 (1.Institute for Environmental Science and Technology, Graduate School of Science and Engineering, Saitama University, 2.Department of Engineering, Saitama University, 3.The Executive Committee for the Preservation of TAYA CAVERN)

Keywords:infrared moisture meter, soft rock, Taya Cave

An infrared moisture meter, JE-100, was used to determine the water content in this study.
The fallen rock samples were collected from the wall of the Taya Cave. Those samples are formed 3-cm, 6-cm and 9-cm thick and immersed in the water for 24h, and then, weighed and calculated water content. During drying, the changes in weight and infrared absorbance were measured, and calibration curves were obtained. In situ infrared absorption values were measured as well. By using the calibration curve, the water contents were calculated.
These results suggest that nondestructive surveys for moisture conditions in caves are feasible, although the values were relatively higher than expected. The results also showed that the values of water content in this cave varies depending on the location.