Abstract

MECHURA, Verónica Vanesa; DELBONO, Héctor Luis  and  RIVERA, José Julián. Accelerated polishing test in road marking paint and its connection with water absorption. Ing. Desarro. [online]. 2022, vol.40, n.2, pp.187-203.  Epub Apr 10, 2023. ISSN 0122-3461.  https://doi.org/10.14482/inde.40.02.621.829.

The durability of road marking materials is evaluated with tests ranging from field tests, to ones that employ large-scale equipment. These require either significant testing periods or enormous investments. To evaluate abrasion, methods from the general field of paints are used, which presents a shortcoming in the evaluation related to the behavior in the presence of water. This aspect generates an interest in adapting the Aggregate Accelerated Polishing test to evaluate the wear through a weight loss in the paints. Given that this equipment is used in roads, it enabled its use in road quality control laboratories. The resulting values are contrasted with those obtained in the Taber Abraser test and an in-service test carried out for this purpose. Additionally, absorption in water is implemented as an additional parameter. Finally, it is highlighted that adopting the accelerated polishing test allows having an estimation of the behavior in service, with the advantage of being able to test several samples, simultaneously, under the same conditions, finding that the absorption of water is related to the results.

Keywords : Abrasion; absorption; accelerated polishing; paints; road marking.

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