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Radiographical investigation of fluid penetration processes in natural stones used in historical buildings
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SYSNO ASEP 0430537 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Radiographical investigation of fluid penetration processes in natural stones used in historical buildings Author(s) Koudelka_ml., Petr (UTAM-F) RID, SAI, ORCID
Jandejsek, Ivan (UTAM-F) RID, SAI
Doktor, Tomáš (UTAM-F) RID, SAI, ORCID
Kytýř, Daniel (UTAM-F) SAI, RID, ORCID
Jiroušek, Ondřej (UTAM-F) RID, SAI
Zíma, Pavel (UTAM-F)
Drdácký, Miloš (UTAM-F) RID, SAI, ORCIDNumber of authors 7 Source Title Journal of Instrumentation. - : Institute of Physics Publishing - ISSN 1748-0221
Roč. 9, č. 5 (2014), C05040Number of pages 8 s. Publication form Online - E Action International workshop on radiation imaging detectors /15./ Event date 23.06.2013-27.06.2013 VEvent location Paris Country FR - France Event type WRD Language eng - English Country GB - United Kingdom Keywords computerized tomography (CT) ; computed radiography (CR) ; inspection with X-rays ; X-ray radiography ; digital radiography (DR) Subject RIV JN - Civil Engineering R&D Projects GBP105/12/G059 GA ČR - Czech Science Foundation (CSF) Institutional support UTAM-F - RVO:68378297 UT WOS 000340036100040 EID SCOPUS 84903643092 DOI 10.1088/1748-0221/9/05/C05040 Annotation In order to ensure sustainability if historic buildings their technical state has to be inspected on regular basis. Damage assessment has to be preferably carried out using non-destructive methods otherwise damage accumulation may occur during life-cycle of the constructions. According to character of detected damage appropriate intervention measures (i.e. strengthening, consolidation, etc.) have to be then efficiently applied. Among other factors significantly influencing life span of constructions weathering agents (rain, erosion, dissolution, etc.) may cause rapid degradation of mechanical properties. In this paper X-ray radiograhical imaging was used to describe fluid penetration process in porous Maastricht limestone that is commonly used for restoration purposes. The imaging was performed in custom radiography device simulating practical in-situ measurements using microtube device. This device is a modified Karsten tube capable of determining absorbed volume and its speed even on inclined surfaces. However actual fluid penetration process in terms of saturation depth/volume ratio and shape of fluid wave propagating through microstructure is indeterminable using microtube. For this purpose real-time radiography imaging of fluid saturation process was performed to investigate behaviour of fluid in the material. Furthermore X-ray computed microtomography was performed to develop finite element model for simulation of fluid flow in the porous microstructure. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2015 Electronic address https://doi.org/10.1088/1748-0221/9/05/C05040
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