1. Introduction to Medium Setting Asphalt Emulsifier
Medium-setting asphalt emulsifier is a chemical additive that can control the demulsification speed of emulsified asphalt between fast setting and slow setting. Its demulsification time is usually 30 minutes to 2 hours, and it has the characteristics of construction flexibility and fast molding. It is suitable for scenarios that require a balance between operation time and engineering efficiency.
Medium setting asphalt emulsifier is a surfactant used in the production of emulsified asphalt, belonging to the cationic quaternary ammonium salt emulsifier. It is mainly used for the production of emulsified asphalt for construction purposes such as adhesive layer oil, crushed stone seal layer, and emulsified asphalt cold base oil. Medium setting asphalt emulsifier (LT-CZ2) is of high quality, low cost, easy to operate, and has strong permeability. It is particularly suitable for prime coat, tack coat oil, crushed stone seal coat, etc.
2. Classification and Characteristics of Medium setting Asphalt Emulsifiers
Medium setting asphalt emulsifiers are classified according to their breaking speed and have the following characteristics:
(1) Appearance: Generally colorless transparent liquid or white paste.
(2) Solubility: Easily soluble in hot water and organic solvents.
(3) Application scope: Suitable for pavement construction such as permeable layer, adhesive layer, and crushed stone seal layer.
3. Usage of Medium Setting Asphalt Emulsifier
When using a medium setting asphalt emulsifier, it is usually added to water, heated to 60-70 ℃ to dissolve and stir evenly, while the asphalt is heated to 120-130 ℃. After both materials reach the production temperature, emulsified asphalt production is carried out. This emulsifier is easy to operate and use, with a small dosage, easy to store emulsified asphalt products, and has a wide range of applications.
4. Main technical indicators of medium setting asphalt emulsifier
(1) Appearance: Light yellow transparent liquid
(2) Active ingredient content: 40%~45%
(3) PH value: 6-7 (no need to adjust acid during use)
(4) Dosage: 0.8~1.2%
(5) Packaging: 200kg/drum
5. Application scenarios of medium setting asphalt emulsifier
Medium setting asphalt emulsifiers are widely used in practical production, especially in the construction of adhesive layer oil, crushed stone seal layer, and emulsified asphalt cold base oil. Its production cost is low, the appearance is viscous, and it is easy to operate and use. In addition, the production process of medium setting emulsified asphalt is simple, the source of raw materials is sufficient, and there are no three wastes generated during the production process.
In summary, medium setting asphalt emulsifiers play an important role in road construction, with stable performance and strong emulsifying ability, suitable for various complex road construction conditions.
