Effect of air relative humidity on silica gel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43898723" target="_blank" >RIV/60461373:22310/14:43898723 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Effect of air relative humidity on silica gel
Original language description
Consolidants based on esters of silica acid (alkoxysilanes) have been widely used for the consolidation of decaying stone monuments. These consolidants are prepared via the sol-gel process. The silica gel toughens the stone and prolongs its lifetime. But a well-known problem of the gels is that they shrink and crack during their formation and ageing. In this study, we focused on the effect of air relative humidity on the gelation time and on the time to the appearance of the first crack. The whole set of experiments was undertaken at controlled laboratory conditions in a closed box. Five different humidities were kept constant by placing a saturated solution of salt in each box.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
AL - Art, architecture, cultural heritage
OECD FORD branch
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Result continuities
Project
<a href="/en/project/DF11P01OVV012" target="_blank" >DF11P01OVV012: New materials and technologies for the conservation of the materials of historical monuments and the preventive care</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů