Conceptual uses and classification of emulsified asphalt
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Conceptual uses and classification of emulsified asphalt
Release Time:2024-02-21
Emulsified asphalt is an oil-in-water liquid produced by asphalt and water with surfactant added through emulsified asphalt production equipment. It is liquid at room temperature and can be used directly or diluted with water. Asphalt is solid at room temperature. If it needs to be used, it needs to be heated to liquid before use. Higher temperatures make it more dangerous to use. Emulsified asphalt is a derivative of asphalt. Compared with asphalt, it has the advantages of simple construction, improved construction environment, no need for heating, safety and environmental protection.
Classification of emulsified asphalt:
Conceptual uses and classification of emulsified asphalt_1Conceptual uses and classification of emulsified asphalt_2
1. Classify by usage method
Emulsified asphalt is classified according to the method of use, and its use can also be described by the method of use. Spray-type emulsified asphalt is generally used as waterproof layer, bonding layer, permeable layer, sealing oil, emulsified asphalt penetrating pavement, and layer-laying emulsified asphalt surface treatment technology. Mixed emulsified asphalt needs to be mixed with stone. After mixing, it can be spread evenly until the emulsified asphalt is demulsified and the water and wind evaporate, and then it can be used for normal traffic. Mixed emulsified asphalt can be used as a waterproof layer or as a surface layer in maintenance engineering construction. Mainly used in slurry sealing, mixed emulsified asphalt surface treatment technology, emulsified asphalt gravel mixed pavement, emulsified asphalt concrete pavement, repair of pavement potholes and other diseases, cold recycling of old asphalt pavement materials and other mixing construction processes.
2. Classify according to the particle nature of asphalt emulsifiers
Emulsified asphalt is classified according to particle nature and can be divided into: cationic emulsified asphalt, anionic emulsified asphalt, and nonionic emulsified asphalt. Currently, cationic emulsified asphalt is widely used.
Cationic emulsified asphalt has the characteristics of good adhesion and is widely used in building waterproofing and highway construction. Cationic emulsified asphalt is divided into three types according to the demulsification speed: fast cracking type, medium cracking type, and slow cracking type. For specific applications, please refer to the introduction of emulsified asphalt and asphalt emulsifiers in Construction Materials. Slow cracking type can be divided into two types according to the molding time of the mixture: slow setting and fast setting.
Anionic emulsified asphalt is divided into two types: medium cracking and slow cracking. The demulsification speed of the mixture is slow setting.
Non-ionic emulsified asphalt has no obvious demulsification time and is mainly used for cement and aggregate mixing and paving semi-rigid stable base courses and for semi-rigid permeable layer oil spraying.
How to choose which emulsified asphalt to use in an application? You can refer to this article, or consult the website customer service! Thank you for your attention and support!