First, emulsification fineness determines the stability of emulsified asphalt. Emulsified asphalt is formed by water and asphalt through the action of emulsifier to form a stable emulsion. The smaller the emulsification fineness, the smaller the particle size of water and asphalt particles, which helps to improve the stability of the emulsion and reduce the occurrence of stratification and coagulation. Stable emulsion can ensure the performance stability of emulsified asphalt during storage and transportation.
Secondly, emulsification fineness affects the application performance of emulsified asphalt. In road construction and maintenance projects, emulsified asphalt is mainly used for the preparation of asphalt mixtures and pavement sealing. Smaller emulsification fineness can make asphalt particles better dispersed in the mixture, improve the uniformity and density of the mixture, and thus improve the rutting resistance, crack resistance and durability of the pavement.

In order to control the emulsification fineness, it is crucial to choose the right emulsified asphalt equipment. Modern emulsified asphalt equipment usually adopts advanced technologies such as high shear emulsifier and high-frequency vibrating screen, which can effectively reduce the particle size of the emulsion and improve its stability. At the same time, equipment maintenance and cleaning are also key links to ensure the emulsification fineness. Regularly inspect and maintain the equipment to ensure its normal operation, and clean it in time to avoid the influence of residues on the quality of the emulsion.
In addition, the selection and use of emulsifiers are also one of the factors affecting the emulsification fineness. Different types of emulsifiers have different performance characteristics. Selecting a suitable emulsifier can improve the stability of the emulsion and control the emulsification fineness. During use, the amount and ratio of the emulsifier should be strictly controlled to obtain the best emulsification effect.
In summary, the emulsification fineness plays an important role in the production and application of emulsified asphalt. By selecting suitable emulsified asphalt equipment, maintaining and cleaning equipment, and selecting suitable emulsifiers, the emulsification fineness can be effectively controlled and the performance and application effect of emulsified asphalt can be improved. In practical applications, the emulsification fineness should be reasonably adjusted according to engineering requirements and material performance requirements to meet different construction conditions and durability requirements.