1. Introduction to slow cracking and fast setting asphalt emulsifier products

Slow cracking and fast setting asphalt emulsifier is a special type of asphalt emulsifier mainly used for the preparation of emulsified asphalt. Its characteristic is that the demulsification speed is slow (slow cracking), while the molding speed of the mixture is fast (fast solidification). This emulsifier reduces the surface tension of asphalt and water, mixing them to form a water in oil liquid. It is suitable for construction processes that require mixing with stones, such as micro surfacing, slurry sealing, and pit repair in road maintenance. Slow cracking and fast setting asphalt emulsifier (LT-CMK715) is a non acid regulating cationic slow cracking and fast setting emulsifier with excellent emulsifying performance and good product stability after emulsification; It has a wide adaptability to various types of stone materials and can meet the construction requirements at higher temperatures; During the demulsification process, it can actively drive away the moisture on the surface of the stone material, and the mixture is formed quickly, which can meet the requirements of rapid open traffic. Can be used for micro surfacing and slurry sealing during highway construction.

2. Synthesis method of slow cracking and fast setting asphalt emulsifier

The synthesis of slow cracking and fast setting cationic asphalt emulsifiers usually uses nonylphenol polyoxyethylene ether, epichlorohydrin, and trimethylamine as the main raw materials. Synthesize polyoxyethylene cationic asphalt emulsifier through specific chemical reactions, and prepare emulsified asphalt under specific conditions to ensure emulsification effect and storage stability.

3. Chemical composition and properties of slow cracking and fast setting asphalt emulsifier

Slow cracking and fast setting asphalt emulsifiers are usually cationic, mainly composed of nonylphenol polyoxyethylene ether, epichlorohydrin, and trimethylamine, synthesized through specific chemical reactions. The active ingredient content is usually above 55%, the pH value is between 2.0-3.0, and the appearance is a dark brown viscous liquid.

4. Usage of slow cracking and fast setting asphalt emulsifier

Heat the water to 60-65 ℃, add the pre measured asphalt emulsifier to the water, and stir evenly. Heating the asphalt temperature to 120 ℃ can produce emulsified asphalt.

5. Application scope of slow cracking and fast setting asphalt emulsifier

Micro surface, slurry seal, modified slurry seal, etc.

6. Main technical indicators of slow cracking and fast setting asphalt emulsifier:

Appearance: Dark brown viscous liquid

PH value: No need to adjust during use

Dosage: 2.0~2.5%

Packaging: 200kg/drum

7. Application scope of slow cracking and fast setting asphalt emulsifier

Slow cracking and fast setting asphalt emulsifiers are widely used in construction such as slurry sealing, micro surfacing, and cold recycling, and have excellent emulsification and mixing effects. Excellent performance under high temperature and rainy construction conditions, able to achieve traffic opening within 1 hour, suitable for construction on high traffic sections.