Project information
Research into non-force effects and aggressive environment affecting the ageing of historical structures with special emphasis on Charles bridge in Prague
- Project Identification
- GA103/02/0990
- Project Period
- 1/2002 - 12/2004
- Investor / Pogramme / Project type
-
Czech Science Foundation
- Standard Projects
- MU Faculty or unit
- Faculty of Science
- Cooperating Organization
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Technical University Ostrava
- Responsible person doc. Ing. Alois Materna, CSc.
- Responsible person RNDr. Pavel Pospíšil, Ph.D.
- Responsible person prof. Ing. Jiří Witzany, DrSc.
A long-term monitoring as well as laboratory and theoretical analyses show that a lot of defects appearing in the structure and individual stone blocks are mostly caused by the effects and influence of temperature and moisture (due to different humidity, temperature and different dilatometric features) which are putting the structure of Charles Bridge under variable intensity stress. This stress is due to mutual interaction of individual parts of the bridge with different primary volume changes. The rising intensity of physical, chemical and microbiological corrosion as well as degradation processes of the stone walls of bridge vaults, piers and supporting walls is very alarming. Reliability assessment of rehabilitation and reconstruction measures requires a detailed analysis of the interaction of the external environment and degradation processes in time, including and taking into account namely the specificities of repeated and cyclic temperature and moisture effects. Protection of buildings aga
Publications
Total number of publications: 10
2007
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ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES
Acta Geologica Universitatis Comenianae, year: 2007, volume: 1/2007, edition: 1
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Technolitologie, současnost a perspektiva
Acta geologica Universitatis Comenianae, year: 2007, volume: 1/2007, edition: 1
2005
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Factors afecting formation on ettringite, thaumasite and gypsum in concrete
Year: 2005, type: R&D Presentation
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Petrografické a mineralogicko-geochemické zhodnocení stavebních materiálů historických kamenných konstrukcí
Kámen, year: 2005, volume: 11, edition: 1
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Souhrnné hodnocení teoretického a experimentálního výzkumu Karlova mostu v letech 1994-2004, 1. část
Stavební obzor, year: 2005, volume: 3/14, edition: 3/2005
2004
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Construction material interaction in historical stone bridge structures
Year: 2004, edition: Vyd. 1, number of pages: 6 s.
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Příprava a realizace terénního průzkumu historických kamenných konstrukcí
Kámen, year: 2004, volume: 10, edition: 3
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Technolithology
Krystalinikum, year: 2004, volume: 30, edition: 1
2003
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Zamyšlení nad využitím stavebního a dekoračního kamene v architektuře
ERA21, year: 2003, volume: 3/3, edition: 3
2002
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Charles Bridge biocorrosion
"Kontra 2002", year: 2002