Neutron and high-contrast X-ray micro-radiography as complementary tools for monitoring organosilicon consolidants in natural building stones
Author
Slavíková Monika, Ing.
| Institute of Chemical Technology in Prague , Department of Chemical Technology of Monuments Conservation
|
Krejčí František, Ing.
| IEAP
|
Kotlík Petr, Doc.
| Institute of Chemical Technology in Prague , Department of Chemical Technology of Monuments Conservation
|
Jakůbek Jan, Ing. Ph.D.
| IEAP
|
Tomandl Ivo
| Nuclear Physics Institute, Rez, Ac. Sc. Czech Republic
|
Vacík Jiří, Ing., CSc.
| NPI ASCR
|
Year
2014
Scientific journal
Nucl. Instr. Methods B: Beam Interactions with Materials and Atoms 338, 42-47
Web
Abstract
The monitoring of consolidants and other treatment product in stones is currently of great importance in various restoration studies. We use neutron and high-contrast X-ray micro-radiography as complementary non-destructive techniques for monitoring of organosilicon consolidants in the Opuka stone. Thanks to different sensitivities of both techniques in relation to the elemental composition, the effect of addition of the contrast agent (3-iodopropyl)trimethoxysilane commonly used in stone consolidation monitoring with X-ray radiography is evaluated. As the addition of the contrast agent to the original consolidation product alters important parameters such as the penetration depth, the understanding of the behaviour of the modified consolidation mixture is essential for verification of the reliability of the method. By comparing results from both methods, the respective radiographs show consistency in terms of homogeneity and penetration depth for all investigated concentrations of the used contrast agent. The presented results further demonstrate that the application of the contrast agent apparently changes the penetration depth, but these changes are especially for very low concentrations (up to 1%) for most of the studies needed negligible.
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Cite article as:
M. Slavíková, F. Krejčí, P. Kotlík, J. Jakůbek, I. Tomandl, J. Vacík, "Neutron and high-contrast X-ray micro-radiography as complementary tools for monitoring organosilicon consolidants in natural building stones", Nucl. Instr. Methods B: Beam Interactions with Materials and Atoms 338, 42-47 (2014)