Assessment of Adhesion of Geopolymer and Varnished Coatings by the Pull-Off Method

This paper presents the results of testing the adhesion of geopolymer coatings and varnishes with ceramic additives to concrete and steel substrates. The measurement method used and described in this article was the pull-off method. The pull-off method test provides an easy way to evaluate the degre...

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Bibliographic Details
Published in:Eng (Basel, Switzerland) Switzerland), 2022-03, Vol.3 (1), p.42-59
Main Authors: Łach, Michał, Róg, Gabriela, Ochman, Karolina, Pławecka, Kinga, Bąk, Agnieszka, Korniejenko, Kinga
Format: Article
Language:English
Subjects:
Acids
Additives
Adhesion
adhesion test
Adhesion tests
Adhesive strength
Adhesives
Ceramic coatings
coatings
Concrete
Corrosion resistance
Geopolymers
Measurement methods
Metal surfaces
Protective coatings
pull-off method
steel
Substrates
Varnishes
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Summary:This paper presents the results of testing the adhesion of geopolymer coatings and varnishes with ceramic additives to concrete and steel substrates. The measurement method used and described in this article was the pull-off method. The pull-off method test provides an easy way to evaluate the degree of adhesion of coatings to metal surfaces. The pull-off device provides values for the peel stress, which not only allows a quick determination of the adhesion of the coating to the substrate, but also makes it easier to compare the adhesion of several coatings to each other. However, this method requires appropriate preparation, so an attempt was made to determine its suitability for geopolymer layers. The results of testing the adhesion of a geopolymer layer to a geopolymer substrate and a concrete substrate are presented. As a result of this study, a higher adhesion strength of the geopolymer layer to the geopolymer substrate was found in comparison to geopolymer coatings applied on conventional concrete. Adhesion tests were also conducted for steel substrates to which both geopolymer and acrylic lacquer were applied.
ISSN:2673-4117
2673-4117
DOI:10.3390/eng3010005