Emulsified asphalt has a wide range of applications, and high-end development is the mainstream trend in its future development.

Emulsified asphalt refers to heating the asphalt to a fluid state, and then mechanically dispersing the asphalt into fine droplets in water containing emulsifiers and stabilizers to form a uniform and stable emulsion liquid asphalt, which appears as a black or brown-black liquid at room temperature. According to the different ionic properties of the emulsifier used, emulsified asphalt can be divided into cationic, anionic, zwitterionic and nonionic emulsified asphalt; according to different uses, it can be divided into two categories: spray emulsified asphalt and mixed emulsified asphalt. Among them, cationic emulsified asphalt is currently the mainstream product in the emulsified asphalt market.

According to the “2022-2027 Emulsified Asphalt Industry Market In-depth Research and Investment Prospects Forecast Analysis Report” released by the Industrial Research Center shows that compared with other forms of asphalt, such as hot asphalt and diluted asphalt, emulsified asphalt has strong adhesion, good ductility, low cost of use, low resource consumption, less material consumption, safety and environmental protection, and easy use, etc. Characteristics, it can be widely used in highway construction, building waterproofing, soil improvement, plant cultivation, metal and non-metal material anti-corrosion, insulation material manufacturing, fuel oil production and other fields.

Specifically, in the field of highway construction, emulsified asphalt can be used in slurry seals, grouting materials, gravel seals, cold filling materials, pavement maintenance and repair, etc.; in the field of building waterproofing, emulsified asphalt is sprayed with quick-setting waterproof coatings An important base material; in the field of thermal insulation materials, emulsified asphalt is the key raw material for the production of emulsified asphalt expanded perlite insulation materials; in the field of metal or non-metal anti-corrosion, emulsified asphalt is waterproof, acid-proof, antibacterial, alkali-proof, cost-effective, etc. Advantages have become anti-corrosion materials for a variety of metal and non-metallic materials.

Currently, emulsified asphalt has a wide range of applications. With the scale of domestic infrastructure investment continuing to expand and the highway construction process accelerating, its market demand continues to increase and consumption increases year by year. According to data from the Ministry of Transport, the country’s total highway mileage reached 5.2807 million kilometers at the end of 2021, an increase of 82,600 kilometers from the end of 2020. Against this background, my country’s emulsified asphalt market has shown continued growth, and the industry has broad prospects for development.

Asphalt emulsifiers are the key to the development of emulsified asphalt technology. However, there is still a big gap between domestic asphalt emulsifiers and foreign advanced products in terms of technical content, product performance, product added value, etc. Therefore, the domestic high-performance emulsified asphalt market is still Leading foreign companies occupy a larger share, and the degree of localization is low.

Industrial analysts personnel said that in recent years, as local enterprises have continued to strengthen technological research and accelerate the transformation of scientific and technological achievements, domestic high-tech Performance emulsified asphalt products are constantly emerging, such as the high-polymer recycled emulsified asphalt (PMRE) products developed by Seco Building Materials Group, and the highly elastic waterproof modified emulsified asphalt (FSP50, FSP55 and FSP60) products. In the future, as the research and development process of local enterprises continues to accelerate, my country’s emulsified asphalt industry will continue to develop in a high-end direction.