Comparative study of the variation of the hydric properties and aspect of natural stone and brick after the application of 4 types of anti-graffiti

Autor: O. García, I. Rz-Maribona, A. Gardei, M. Riedl, Y. Vanhellemont, M. L. Santarelli, J. Strupi Suput
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2010
Předmět:
Zdroj: Materiales de Construccion, Vol 60, Iss 297, Pp 69-82 (2010)
Druh dokumentu: article
ISSN: 0465-2746
1988-3226
DOI: 10.3989/mc.2010.45507
Popis: In this article a comparative study of the behaviour of different commercial anti-graffiti on natural stone and brick is presented. 8 different European substrates were selected and 4 commercial anti-graffiti of different chemical nature were applied on these substrates. The variations of their hydric properties and aspect (colour and gloss) with regard to the untreated substrates were later studied in the laboratory. The results obtained permitted to assess the suitability of 4 of the main types of chemical formulations employed to be used as anti-graffiti. This study concludes that the sacrificial anti-graffiti with polymeric paraffins in its composition presents the lowest reductions of the hydric properties of the studied substrates, being also the variations in colour the least perceptible.
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