6533b7d3fe1ef96bd125fb89

RESEARCH PRODUCT

Application of a polymer-based photocatalytic coating for the protection of limestone stones substrates: an exposure study

Bergomi A.Comite V.Fermo P.Ricca M.Borelli M.Belfiore C. M.Randazzo L.La Russa M. F.

subject

cultural heritage protective coatings decay pollutionSettore GEO/09 -Georis. Miner.e Appl.Mineral.-Petrogr. per l'Ambi.ed i B.Cult.

description

In the last decades there have been several studies on cultural heritage regarding the performance of protective and consolidating coatings for the prevention of decay. A coating must have several characteristics such as: efficiency, breathability, and must be durable and reversible. In this research work we tried to verify the performance of a commercial protective product such as Fosbuild FBLE 200, which is composed of a TiO2 nanopowder dispersed in an aqueous solution of an acrylic polymer. This product, which exhibits depolluting, antimicrobial, water-repellent and self-cleaning characteristics, has been applied on different lithotypes such as: Carrara marble, Noto and Comiso stone and exhibited in two different outdoor environments such as Catania and Palermo. These two cities are mostly affected by pollution produced by vehicular traffic; moreover, Catania is also affected by pollution produced by the activity of Mount Etna.

https://hdl.handle.net/10447/587210