Avaliação da incorporação de material luminescente alternativo no revestimento de pavimentos flexíveis para condições de visibilidade noturna

Abstract

Luminescent materials, when used for decorative purposes, have a well-established applicability, such as in the ornamentation of aquariums, outdoor gardens, lawns, emergency exit signs, and walkways. These materials are composed of synthetic resins with no environmental impact, and their luminescence is naturally obtained without the need for electricity. However, within the field of engineering, their application is infrequent, especially in the context of road infrastructure. Considering this scenario, the present study aims to evaluate the utilization and feasibility of using these materials for horizontal road signage. For the purposes of this study, tests were conducted on specimens of CBUQ (Conventional Bituminous Concrete Mix) incorporating three different materials: luminous stones with granulometry equivalent to coarse aggregate, luminous stones with granulometry equivalent to fine aggregate, and painting with luminescent Glow Corion paint. The objective was to assess the luminosity behavior of the specimens over time after exposure to natural light ceased. The results obtained demonstrated that among the materials tested, the application of Glow Corion paint to the surface of the specimen yielded the best results, with good surface adhesion. The maximum observed duration of brightness was approximately 780 minutes, with the first 5 minutes displaying intense brightness followed by a progressive decay of phosphorescence.