The Influence of Internal Structure Change on Sandstone Strength
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00235757" target="_blank" >RIV/68407700:21110/15:00235757 - isvavai.cz</a>
Result on the web
<a href="http://www.engmech.cz/2015/" target="_blank" >http://www.engmech.cz/2015/</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The Influence of Internal Structure Change on Sandstone Strength
Original language description
During their “life” sandstones are influenced by actions of weathering processes which usually lead to changes in their internal structure. Porosity and the character of pore space is one of the main factors affecting the resistance to weathering processes and, consequently, to the changes of mechanical-physical properties of these stones. Rock material is generally negatively influenced especially during the winter period. The effect of salt crystals and ice formation depends on the character of pore space, including the pore size distribution. Our research was focused on three commonly used Czech Cretaceous sandstones – Hořice, Božanov and Kocbeře. These stones were exposed to the accelerated durability test and then the change of uniaxial compressive strength was determined. We used the mercury porosimetry and X-Ray microtomography methods to evaluate the changes of pore space properties. Use of these methods enabled more detailed understanding of the processes inside the stone structure and their influence on strength characteristics of sandstones.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/DF12P01OVV020" target="_blank" >DF12P01OVV020: A comprehensive methodology for the selection and processing of a stone intended for replacements and repairs of the ashlar masonry of historic buildings</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů