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Relevance of hydrophobic and oleophobic properties of antigraffiti systems on their cleaning efficiency on concrete and stone surfaces
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.ORCID iD: 0000-0003-1904-7426
2013 (English)In: Journal of materials in civil engineering, ISSN 0899-1561, E-ISSN 1943-5533, Vol. 25, no 6, p. 755-762Article in journal (Refereed) Published
Abstract [en]

The problem of graffiti is not entirely restricted to urban areas, but also appears frequently in rural communities and along traffic infrastructure. Besides its aesthetic and societal effects, graffiti cause considerable removal costs and subsequent costs for repairing damages caused by improper graffiti removal. Over the last two decades, strategies have been developed to combat graffiti in the built environment, including the development of protective measures in the form of antigraffiti systems (AGSs). Antigraffiti systems promise to be affordable and easily applicable for a wide range of substrates, and many products have already been on the market for many years. In practice, however, successful application of AGS and removal of graffiti depend on many factors in which the type of coating and condition of the substrate play critical roles. The optimal environmental goal is to use AGS without any cleaning chemicals except for pure water. Available studies on the behavior of the same AGS on various substrates can show completely different results concerning the cleaning efficacy and the durability of the AGS under different climatic conditions. The question of which properties of an AGS are most essential for its efficiency has still not been fully investigated. The goal of this study was to investigate cleaning efficacy in conjunction with hydrophobic and oleophobic properties of the AGS on different substrates. The results showed that hydrophobicity and oleophobicity are important for dense substrates but have a low influence on porous substrates. In this case, cleaning efficiency is majorly determined by the physical properties of the substrates.

Place, publisher, year, edition, pages
2013. Vol. 25, no 6, p. 755-762
Keywords [en]
Antigrafitti protection, Cleaning efficiency, Concrete, Hydrophobicity, Oleophobicity, Stone
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-2726DOI: 10.1061/(ASCE)MT.1943-5533.0000557Local ID: 3983OAI: oai:DiVA.org:ri-2726DiVA, id: diva2:960329
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2018-08-15Bibliographically approved

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Mueller, Urs

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