National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Non-invasive material and traceological research of the stone head from Celtic settlement Závist near Prague
Cihla, M. ; Trefný, M. ; Drda, Petr ; Hradil, David ; Hradilová, J.
The sandstone head sculpture from the hillfort of Závist in the southern periphery of Prague has been subjected to a non-invasive survey by mechanoscopic and analytical approaches. A 3D model of a sculpture has been created using laser scanning and photogrammetry. A reconstruction of stonemason's working tools was derived from longitudinal and transversal sections of the traces on the head's surface. Further screening of the surface by handheld X-ray fluorescence identified increased contents of lead and tin suggesting a former intentional coloring of the sculpture's surface. Traces of gold could indicate that the surface was gilded. It was confirmed that the sculpture was originally not a part of a human figure, but was intended to represent only a self-standing head. The way of making as well as the nature of the original surface treatment has excluded the possibility that the stone head from Závist was a modern replica.
Repair of the parapet walk with battlements made from sandstone ashlar masonry with the regard to its visual authenticity and historic values – implemented sample procedure
Bláha, Jiří ; Kovářová, K. ; Buzek, Jaroslav ; Panáček, M. ; Cihla, M. ; Rafl, T. ; Hejný, L. ; Rybařík, V. ; Chamra, S. ; Schröfel, J.
The multidisciplinary criteria for selecting, preparation and processing of a replacement stone for ashlar masonry were implemented in restoration and conservation of the Castle of Kost battlements – one of the most authentically survived medieval fortification monuments in the Czech Republic. Detailed description of undertaken surveys, preparation and interventions carried out within the repair process.
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Criteria for selecting, preparation and processing of a replacement stone for ashlar masonry restoration – sedimentary rocks
Bláha, Jiří ; Kovářová, K. ; Buzek, Jaroslav ; Panáček, M. ; Cihla, M. ; Rafl, T. ; Hejný, L. ; Rybařík, V. ; Chamra, S. ; Schröfel, J.
Geologists, structural engineers, construction historians, conservationists and restorers formulated their views on the relevant intensity of interventions, the replacement stone quality and also the parameters of processing by craftsmen. Methodical guidelines define the necessary level of adequate historical, technological and structural surveys and, subsequently, propose an optimal procedure for laboratory tests and for the following repair processes of a particular structure.
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See also: similar author names
1 Cihla, M.
1 Cihla, Michal
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