Pregledni rad
Material Sensors for the Surface Recession of Calcareous Stones: Understanding Present and Future Decay
Marija Milchin
orcid.org/0009-0004-6777-8092
; University of applied Arts Vienna Institute of Conservation
Johannes Weber
; University of applied Arts Vienna Institute of Conservation
Gabriela Krist
Sažetak
The study proposes material sensors to assess the rate of the surface recession
of calcareous stones through atmospheric weathering. The sensors, made
of highly polished alabaster and Carrara marble, were exposed outdoors for
up to 10 months. The analytical methods employed involve gravimetry, gloss
measurements, and microscopy. For alabaster sensors, the results show a
good reliability for gravimetry, but lesser for gloss; this sensor material might
prove more relevant for sheltered exposure. In turn, the marble sensors yield
very promising results for gloss measurements, but less with gravimetry; longer
exposure times might change this. Microscopy proves suitable for both types
of sensors, with emphasis on the surface profile and roughness obtained by
digital microscopy. The trial exposure confirms that material sensors can help
understand exposure and microclimatic conditions affecting the preservation
of heritage assets.
Ključne riječi
calcareous stone; surface recession; material sensor; gloss measurement; digital microscopy; field exposure
Hrčak ID:
332247
URI
Datum izdavanja:
21.4.2024.
Posjeta: 96 *