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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Methods of moisture measurement in the historical masonry of archaeological site under the III. courtyard of Prague Castle
 Kalianková, Kateřina ; Weiss, Tomáš (advisor) ; Sněhota, Michal (referee)
This work deals with determining the humidity of historical masonry in the archeological area under III. courtyard of Prague Castle. The area is endangered especially by salt weathering, which is supported by increased humidity of the masonry. The moisture content of marl masonry was determined at the site of the early modern bridge pillar and at other selected walls in the archeological area. The aim of this work is to analyze selected methods of measuring moisture in historic building materials and evaluate their advantages and cons. The suitability of methods for application to historically valuable materials and buildings is also evaluated. Another goal of this work is to analyze the state of humidity in the monitored localities and to determine the source of humidity in the archeological area under III. courtyard of Prague Castle and based on the results propose a procedure for monitoring the future development of humidity. Non-invasive methods of infrared surface imaging, electromagnetic method (MOIST 210B and EM 100), and resistance method (GMR 110) were chosen for humidity monitoring, subsurface resistance measurement, electromagnetic method (TDR), and uranine-probe was chosen from invasive methods of humidity monitoring. Simultaneously with the measurement of humidity, air and masonry...
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