Laboratory assessment of a photoactive Gypsum-based repair plaster

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00559542" target="_blank" >RIV/61388955:_____/22:00559542 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/22:00559542 RIV/68407700:21110/22:00359261 RIV/68407700:21720/22:00359261
Result on the web
<a href="https://doi.org/10.1016/j.conbuildmat.2022.128426" target="_blank" >https://doi.org/10.1016/j.conbuildmat.2022.128426</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2022.128426" target="_blank" >10.1016/j.conbuildmat.2022.128426</a>

Result language
angličtina
Original language name
Laboratory assessment of a photoactive Gypsum-based repair plaster
Original language description
Air pollutants, such as nitrogen oxides (NO and NO2), have a negative impact on the built cultural heritage. In order to reduce it, a photoactive repair plaster for conservation of various gypsum decorations, in particular moulded elements, has been developed in compliance with the requirements of conservators-restorers international community. Hence, the composition of the repair plaster is based on traditional materials (plaster of Paris) with the admixture of a modern material – photoactive titanium dioxide (TiO2) in different weight concentrations 0.5 %, 1 %, 1.5 %, 2 %. The paper presents the results of mechanical, photoactivity and microbiological tests along with the phase analysis and a study of the microstructure of the repair plaster specimens. Several analytical techniques were applied to characterize them, such as X-ray powder diffraction (XRD) and electron microscopy (SEM, TEM) coupled with energy dispersive X-ray spectroscopy (EDS). The results show that gypsum/TiO2 repair plaster can be an effective solution for historical monuments struggling with high air pollution.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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