Design of epoxy resin-based self-luminous pavement material and experiments on its afterglow characteristics
[Objective]Road lighting in rural areas is a critical aspect of new rural road construction.Integrating long afterglow materials into road materials to develop a self-luminous road provides an innovative,ecofriendly,and low-carbon approach to rural road lighting while establishing a theoretical foundation for the use of long afterglow materials in road engineering.[Methods]This study explores a self-luminous epoxy thin-layer cover,mainly through a comprehensive evaluation of both its afterglow characteristics and road performance.To preserve the luminous effect of long afterglow materials,epoxy resin,known for its excellent light transmittance,was selected as the binder.Six different mixing programs were designed,considering the dosage and particle size of the long afterglow materials and their impact on afterglow properties.The afterglow performance of these mixtures was assessed using a screen luminometer under different light conditions,including sunny,cloudy,and rainy weather.Comprehensive performance evaluations of the self-luminous epoxy mixture included assessments of high-temperature stability,low-temperature crack resistance,water stability,and antiloosening performance to verify feasibility.[Results]The results of afterglow characteristics and road performance tests showed that:1)After 30 min of lighting,self-luminous epoxy mixtures reached maximum brightness.The afterglow characteristics were divided into a rapid decline stage followed by a relatively stable stage.However,after more than 4 hours,the brightness remained above the human eyes'minimum recognition threshold of 0.32 mcd/m2.2)The dosage and particle size of long afterglow materials affected the afterglow properties of the mixtures.Higher dosages and larger particle sizes enhanced the light-emitting and luminescence effects.An optimized addition scheme was proposed,using a 15%weight dosage and particle sizes between 10 and 40 mesh.3)Under sunny and cloudy days,the initial luminance of the self-luminous epoxy mixtures reached 370 mcd/m2 and 300 mcd/m2,respectively,decaying to 10 mcd/m2 over time.Despite prolonged immersion,the luminance slightly reduced but still reached 10 mcd/m2 after 4 hours'luminous time,exceeding the minimum recognition threshold of human eyes.4)Compared with the conventional asphalt mixtures,self-luminous epoxy mixtures exhibited super road performance,with improvements in high-temperature stability,water stability,and antiloosening performance by 150%,10%,and 85%,respectively.[Conclusions]The self-luminous road material developed in this study presents satisfactory afterglow characteristics and road performance,meeting the lighting and road performance requirements for rural roads.These findings confirm the feasibility of incorporating long afterglow materials into the pavement to endow roads with afterglow characteristics,providing a reference for using self-luminous epoxy mixtures in rural road lighting.
万方数据
维普
