As the use of emulsified asphalt increases year by year, its economic and social benefits become more and more significant. The use of emulsified asphalt to prevent the road surface can not only reduce the total cost of maintenance, but also has the advantages of flexibility, timeliness and simplicity. It should be promoted and used in road maintenance in the future. Then, in the process of using the bitumen emulsion plant, it means that the emulsified asphalt equipment will become an indispensable product to help customers in the future.

In a sense, the emulsified asphalt equipment uses water to "dilute" the asphalt, thereby improving the flowability of the asphalt.

However, when the emulsified asphalt equipment is subjected to high-speed centrifugation, shearing, and mechanical action, the emulsified asphalt equipment is made into particles having a particle diameter of 0.1 to 5 μm and dispersed in an aqueous medium containing a surfactant (emulsifier-stabilizer). In the middle, since the emulsifier can be adsorbed on the surface of the emulsified asphalt equipment particles, the interfacial tension between water and asphalt is reduced, so that the asphalt particles can form a stable dispersion system in water, and the emulsified asphalt equipment is an oil-in-water emulsion. The dispersion system is brownish brown, the asphalt is a dispersed phase, the water is a continuous phase, and has good fluidity at normal temperature. The emulsified asphalt equipment has stable product quality, closed material transmission, high automation and civilized production, easy to standardize management, and double-grinding configuration can be used to produce modified emulsified asphalt.

At present, emulsified asphalt is widely used in preventive maintenance new technologies and new processes, such as fog seal layer, slurry seal layer, micro-surface, cold regeneration, gravel seal, cold mix and cold-filled materials.

Emulsified asphalt is a kind of emulsion at room temperature formed by dispersing bitumen into the water phase. It is a new material for recycling. It saves energy by more than 50% compared with traditional hot asphalt, and saves asphalt by 10%-20. %, and the pollution is small. The larger characteristic of emulsified asphalt is that it can be stored at room temperature. No heating is required during spraying and mixing, and there is no need to heat the stone. This greatly simplifies the construction and avoids burns and burns caused by hot asphalt. The baking of asphalt steam with high temperature mixture is very popular among maintenance workers.