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Start Over Creator Weishauptová, Zuzana

2. 50 let Ústavu stsruktury a mechaniky hornin AV ČR

Creator:
Weishauptová, Zuzana
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Věda. Všeobecnosti. Základy vědy a kultury. Vědecká práce, Ústav struktury a mechaniky hornin (Akademie věd ČR), výzkum a vývoj, horniny, výročí, research and development, rocks, anniversaries, 12, and 00
Language:
Czech
Description:
The Institute of Rock Structure and Mechanics is focused on research connected with both natural rocks and rock environment on the Earth´s crust, as well as with artificially produced geomaterials, celebrates its 50th anniversary this year. and Zuzana Weishauptová.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

3. Comparison of mercury porosimetry and X-ray microtomography for porosity study of sandstones

Creator:
Kovářová, Kateřina, Ševčík, Robert, and Weishauptová, Zuzana
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, pískovce, zvětrávání, sandstones, weathering, mercury porosimetry, X-ray microtomography, 7, and 551
Language:
English
Description:
Sandstones have been widely used as a building material since the medieval time all around the Europe. Porosity is one of the main factors affecting the resistance to weathering processes and consequently to the changes of mechanical and physical properties of these stones. Rock material is generally negatively influenced especially during the winter period when frost action takes place. Effect of salt crystals and ice formation depends on the character of pore space, including the pore size distribution. Mercury porosimetry is well known method which provides information about porosity and pore size distribution of samples, but as any other method, it has its own limitations. X-ray microtomography can be used as a complementary method enabling another "view" into the pore space. Main aim of this paper has been to provide the information about the use of these two mentioned methods and comparison of obtained results, within the study of sandstone weathering. The research was focused on two commonly used Czech Cretaceous sandstones - Hořice and Božanov. The stones were exposed to the accelerated durability test which is based on the meteorological data measured in Prague winters from 1998 to 2008. There were described the changes in the area of pores diameters > 5 μm. Use of mercury porosimetry together with X-ray microtomgraphy enabled more detailed understanding of the processes inside the stone structure., Kateřina Kovářová, Robert Ševčík and Zuzana Weishauptová., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Karlův most: spojnice materiálových znalostí antiky a moderní doby

Creator:
Přikryl, Richard, Šťastná, Aneta, Novotná, Miroslava, and Weishauptová, Zuzana
Type:
article, model:article, and TEXT
Language:
Czech
Description:
Charles Bridge: connection of material knowledge of antiquity and modern times. Fill of the Gothic Charles Bridge in Prague (Czech Republic) presents a carefully designed mortared rubble masonry which gained benefit from the use of hydraulic lime. The hydraulic lime was prepared by burning a raw material mixture composed of low-silica/alumina-free limestone and clayey-calcareous silicite. This binder mixed with clayey-calcareous silicite as an aggregate formed material which properties resemble modern lightweight structural concrete (LSC).
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public