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Título
Statistical Study of the Effectiveness of Surface Application of Graphene Oxide as a Coating for Concrete Protection
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Coatings
Número de la revista
1
Datos de la obra
Merino Maldonado, D.; Antolín Rodríguez, A.; Rodríguez González, Á.; Fernández Raga, M.; González Domínguez, J. M.; Juan Valdés, A.; García González, J. (2023). Statistical Study of the Effectiveness of Surface Application of Graphene Oxide as a Coating for Concrete Protection. Coatings, 13(1), https://doi.org/10.3390/COATINGS13010213
Editor
MDPI
Fecha
2023
Abstract
[EN] Improving the protection of concrete by applying graphene oxide (GO) as a surface treat-
ment has become the objective of the present study. This study focuses on performing a statistical
analysis to study different levels of GO application as an exterior coating, thus observing the effec-
tiveness of the coating and the optimization of the treatment material for concrete protection. Four
tests were performed to define concrete durability, such as pressurized water penetration, capillary
absorption, freeze-thaw resistance and carbonation resistance. The results showed an increase in
concrete durability with any level of GO application on the surface, considering that the optimum
amount of application for water impermeability and freeze-thaw resistance is 26.2 μg/cm2, since it
was possible to reduce pressurized water penetration by 45%, capillary water absorption by 57% and
freeze-thaw detachment by 25%. However, the optimum application rate for carbonation resistance
is 52.4 μg/cm2, reducing carbonation by almost 60%. In conclusion, if the concrete is going to be
exposed to less aggressive environments, the application of a mild surface coating of GO is sufficient
for its protection, and if the concrete is going to be exposed to more aggressive environments, it is
necessary to increase the amount of GO. The performance of GO as a coating significantly increased
the degree of protection of the concrete, increasing its service life and proving to be a promising
treatment for concrete surface protection.
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