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According to the different bonding methods between glass beads and road marking coatings, glass beads can be divided into two types: surface spread glass beads and pre mixed glass beads. In addition, according to different particle sizes, glass beads can be divided into multiple models and produced according to construction requirements.

When selecting glass beads, the following factors need to be considered: roundness, purity, gradation, refractive index, water resistance, corrosion resistance, etc. The glass bead processing technology and particle size distribution corresponding to different marking coatings also vary.

The application of glass beads in road markings has the following advantages:
(1) Improve visibility at night and on rainy days to enhance road safety;
(2) Enhance the reflective performance of marking coatings to make the markings more prominent;
(3) Wear resistant and prolong the service life of marking coatings;
(4) It has good water resistance and corrosion resistance, and can adapt to various climatic conditions.

The methods for detecting the quality of glass beads include: appearance quality inspection, roundness measurement, particle size distribution analysis, refractive index measurement, water resistance test, etc.

When using glass beads, the following issues should be noted:
(1) Select suitable glass beads based on the type of coating and construction conditions;
(2) Ensure that the quality and specifications of the glass beads meet the standard requirements;
(3) Pay attention to the storage and transportation of glass beads to prevent damage and contamination;
(4) During the construction process, ensure that the glass beads are evenly distributed on the marking line.

With the continuous development of road marking coating technology, the application trend of glass beads in road markings is as follows: (1) Research and application of high refractive index glass beads to improve the reflective performance of marking coatings; (2) The development of environmentally friendly glass beads reduces energy consumption and pollution during the production process of glass beads; (3) Exploration of new glass bead addition technology to achieve more uniform and durable marking effects; (4) The application of intelligent detection and control systems in glass bead quality inspection improves detection efficiency and accuracy.