Carbonate rocks have a widespread diffusion in the Earth crust and are extensively used in cultural heritage and buildings. These rocks can be naturally or anthropically exposed to high temperatures. Consequently, relating physical properties to temperature induced damage is extremely important. Six sets of compositionally and texturally different carbonate rocks, spanning from limestones and marbles to dolomitic marbles, were analysed in this study. Different physical properties, such as porosity, seismic wave velocities and electrical resistivity, were measured before and after thermal treatments with heating/cooling ranges between 105 degrees C and 600 degrees C. Microstructural observations and optical analyses were used to investigate how temperature induced damage affects the physical measured properties of the different microstructures. This integrated approach allowed to define a generalized relationship between physical properties and thermal induced damage, via an induced damage index valid for a broad suite of carbonate rocks.

Relating physical properties to temperature-induced damage in carbonate rocks

Vagnon, F.
First
;
Colombero, C.;Comina, C.;Ferrero, A. M.;Mandrone, G.;Vinciguerra, S. C.
2021

Abstract

Carbonate rocks have a widespread diffusion in the Earth crust and are extensively used in cultural heritage and buildings. These rocks can be naturally or anthropically exposed to high temperatures. Consequently, relating physical properties to temperature induced damage is extremely important. Six sets of compositionally and texturally different carbonate rocks, spanning from limestones and marbles to dolomitic marbles, were analysed in this study. Different physical properties, such as porosity, seismic wave velocities and electrical resistivity, were measured before and after thermal treatments with heating/cooling ranges between 105 degrees C and 600 degrees C. Microstructural observations and optical analyses were used to investigate how temperature induced damage affects the physical measured properties of the different microstructures. This integrated approach allowed to define a generalized relationship between physical properties and thermal induced damage, via an induced damage index valid for a broad suite of carbonate rocks.
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https://www.icevirtuallibrary.com/doi/10.1680/jgele.20.00122
Carbonate rocks; thermal treatment; physical properties; thermal damage factor
Vagnon, F.; Colombero, C.; Comina, C.; Ferrero, A. M.; Mandrone, G.; Missagia, R.; Vinciguerra, S. C.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1788436
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