长余辉材料的路面应用和研究进展

Pavement Application and Research Progress of Long-Afterglow Material

摘要:

长余辉材料是一种无电源、非放射性、可循环蓄光发光的功能材料，吸光5～10 min可在黑暗中持续发光12 h以上，在绿色交通与道路安全领域的应用潜力显著。在相关研究的基础上，回顾了长余辉材料的发展历程，阐述了金属硫化物、铝酸盐和硅酸盐3种主要长余辉材料的发光特性与发光原理，对比分析了涂料型、水泥基、树脂基、沥青类自发光路面的技术特点，指出当前材料存在耐水性不足、发光衰减快、路面耐久性与成本控制的适配性差等问题。研究结果表明，自发光路面可降低夜间事故率、减少照明能耗与光污染。最后从材料改性、路面结构优化、施工工艺标准化等方面进行展望，为长余辉材料在道路工程中的推广应用提供参考。

Abstract:

Long-afterglow material is a power-free, non-radioactive and recyclable light-storing and luminescent functional material, which can absorb light for 5~10 min and continuously emit light in the dark for more than 12 h, showing significant application potential in green transportation and road safety. Based on existing studies, the development history of long-afterglow materials is reviewed, the luminescence characteristics and principles of three main long afterglow materials, namely metal sulfides, aluminates and silicates, are expounded, and the technical characteristics of four coating-based, cement-based, resin-based and asphalt-based self-luminous pavements are compared and analyzed, which is pointed out that the current materials have problems such as insufficient water resistance, rapid luminescence attenuation, and poor compatibility between pavement durability and cost control. The research result shows that the self-luminous pavements can reduce night traffic accidents, lighting energy consumption and light pollution. Finally, the prospects are put forward from material modification, pavement structure optimization and construction standardization, which can provide references for the application and popularization of long-afterglow materials in road engineering.