Glass beads are made by firing glass sand. Glass beads can be divided into glass beads (glass beads is a kind of glass beads, refers to the particle size of 1 mm below the solid sphere) and glass beads according to the size. According to the use of points can be divided into reflective glass beads, sand blasting glass beads, grinding glass beads, filling glass beads. Reflective glass beads can be divided into reflective glass beads for safety and protection and glass beads for screen; according to the refractive index, it can be divided into general refractive index and high refractive index glass beads. General refractive index of 1.5-1.64, high refractive index is generally in 1.8-2.2, assuming that the most suitable as a reflective glass beads with a refractive index of 1.93, the refractive index of the refractive index can be satisfied with the refraction back to the parallel rays, so it is not the higher the refractive index of the reflective effect of the best. According to the shape can be divided into regular glass beads and unruly glass beads. According to the colour can also be divided into colourful glass beads and colourless glass beads. Let's talk about the road reflective glass beads.

Road reflective glass beads

Road reflective glass beads is a kind of glass sand (waste glass) as a material by high temperature melting and constitute a kind of fine glass beads, observed under the microscope for the spherical, colourless, bright, refractive index of 1.50-1.64 between the diameter of 75 microns to 1400 microns between the general. So it is also called reflective glass beads. Now in the domestic primary consumption of road reflective glass beads technology is flame floating method and electrothermal melting method.

Road reflective glass beads as road marking (paint) in the reflective material, can improve the road marking paint retro-reflective function, advancing the safety of night driving, has been the traffic department to be sure. When the car trekking at night, the lamps shine on the road symbol line with glass beads, can make the lamp light and parallel reflection back, so that the driver can see the trekking direction, advancing the safety of night driving. Now, the reflective glass beads have become the irreplaceable reflective material in the road safety commodities.

Road with reflective glass beads, the primary use in the room temperature type, hot melt road marking coating guess, one as a premixed material to ensure that the marking in the life of the period of long time reflective; one in the marking of the construction of the surface of the sprinkle, can play an immediate reflective effect.

Coated glass beads are divided into two kinds, one as a road reflective, one as a screen with reflective. Coated glass beads is the use of a high-function organic material on the glass beads to stop the external disposal, so that the glass beads surface adsorption of dust in the air phenomenon is weakened. Because the coated glass beads are rich in specific coupling agent, improve the adhesion of the beads and paint can prevent part of the fine glass beads pile up into the coating guess. Because of its function of floatability, use floating in the paint surface, it has the largest surface area, can add more than 30% of the use rate. The glass beads are more functional after coating and disposal. It has very good reflective function in the environment which is often wet with rain and fog.

Technical Parameters

Appearance: colourless bright sphere, bright and round, no significant bubbles or impurities.

Rounding rate: rounding rate ≥80% Density: 2.4-2.6g/cm3 Refractive index: Nd≥1.50

Composition: soda-lime glass composition, SiO2 content >70%

Part of the national implementation standards:

Chinese Standard GB/T 24722-2009 No.1, 2, 3;.

Korea Standard KSL 2521 No.1 and 2; British Standard BS6088 Class A; Korean Standard KSL 2521 No.1 and 2.

British Standard BS6088 Class A and B.

American Standard AASHTO M247 type 1 and type 2.

European Standards EN1423 and EN1424.

Turkish Standard TS EN1423.

New Zealand Standard NZS2009: 2002.

Taiwan Standard CNS.

Japanese Standard JIS R3301.

Australian Standard A,B,C,D.