Enhancement of graffiti removal from heritage stone by combining laser ablation and application of a solvent mixture

Ricci, Chiara; Gambino, Francesca; Nervo, Marco; Piccirillo, Anna; Scarcella, Arianna; Zenucchini, Francesca; Ramil, Alberto; Pozo Antonio, José Santiago

Use this link to cite:

http://hdl.handle.net/2183/35515

Enhancement of graffiti removal from heritage stone by combining laser ablation and application of a solvent mixture

Files

(10007-06-07)Ricci_C_2020_Enhancement_of_graffiti_removal_from_heritage_stone.pdf (6.26 MB)

Identifiers

URI: http://hdl.handle.net/2183/35515

DOI: https://doi.org/10.1016/j.conbuildmat.2020.119934

Publication date

2020-11

Authors

Ricci, Chiara

Gambino, Francesca

Nervo, Marco

Piccirillo, Anna

Scarcella, Arianna

Zenucchini, Francesca

Ramil, Alberto

Pozo Antonio, José Santiago

Bibliographic citation

Ricci C, Gambino F, Nervo M, Piccirillo A, Scarcella A, Zenucchini F, et al. Enhancement of graffiti removal from heritage stone by combining laser ablation and application of a solvent mixture. Construction and Building Materials 2020;262:119934. https://doi.org/10.1016/j.conbuildmat.2020.119934

Abstract

[Abstract] In this study, it was evaluated the combined cleaning treatment based on laser ablation followed by the application of chemical products for removing alkyd graffiti paint from two different types of stone. Three different laser treatments (operated in Q-switched, long Q-switched and free short running modes) were applied to the stone samples. The best two treatments were then followed up by application of a chemical product (a low toxic ternary solvent mixture). The Q-switched and the long Q-switched laser treatments in combination with the chemical agent were more effective than either of the laser treatments alone, leaving fewer paint remains, but with minimal damage to the stone.