1. Introduction to high viscosity modified emulsified asphalt products
High viscosity modified emulsified asphalt is an asphalt material that improves its adhesion and durability by adding polymer modifiers to emulsified asphalt. It combines the advantages of emulsified asphalt and modified asphalt, retaining the convenience of using emulsified asphalt at room temperature, and significantly improving its bonding strength and durability through the addition of modifiers.
2. The function of modifier
Modifiers play a crucial role in high viscosity modified emulsified asphalt. Common modifiers include SBR (styrene butadiene rubber lotion) and SBS (styrene butadiene styrene block copolymer). These modifiers can improve the high and low temperature performance of asphalt, enhance its fatigue resistance and durability. SBR modified emulsified asphalt performs well at low temperatures and is suitable for use in high-altitude regions; SBS modified emulsified asphalt can perform well under both high and low temperature conditions, and has a wider range of application prospects.
3. Production process of high viscosity modified emulsified asphalt
The production process of high viscosity modified emulsified asphalt is relatively complex, requiring precise control of the proportions of various components and the mixing process. Usually, the base asphalt accounts for 55%, the modifier accounts for 15%, and the emulsifier and stabilizer account for 30%. In the production process, the emulsifier, modifier and coupling agent are mixed evenly in proportion, and then added to drinking water for mixing to form a stable lotion.
4. Application field of high viscosity modified emulsified asphalt
Highly viscous modified emulsified asphalt is widely used in various engineering projects, including daily maintenance of high-grade highways, bridge deck paving, tunnel protection, underground construction, and roof waterproofing. Due to its excellent durability and wear resistance, the pavement paved with high viscosity modified emulsified asphalt can achieve the effect of high temperature non softening and low temperature non cracking, greatly extending the service life of the pavement.
In summary, high viscosity modified emulsified asphalt significantly improves its adhesion and durability by adding polymer modifiers, and is widely used in various engineering projects, becoming an important material in modern road construction and maintenance.
