1. Product Introduction
Cationic slow cracking and fast setting asphalt emulsifier is a special type of asphalt emulsifier mainly used in road construction and maintenance. Its main feature is "slow cracking and fast setting", which means that during the demulsification of emulsified asphalt, the initial cracking rate is slow, but the setting rate is fast. This characteristic enables emulsified asphalt to better control construction time and quality during the construction process. The cationic slow cracking and fast setting asphalt emulsifier (LT-CMK726) has excellent emulsifying performance and can emulsify various types and origins of asphalt. It has a wide adaptability to stone materials and has the characteristics of long mixing time, fast forming speed, and excellent adaptability in high-temperature environments. Can be used for micro surfacing and cold mix and cold lay thin layer overlay during highway construction.
2. Chemical composition and synthesis methods
Cationic slow cracking and fast setting asphalt emulsifiers are usually synthesized from raw materials such as nonylphenol polyoxyethylene ether, epichlorohydrin, and trimethylamine. Through chemical reaction, N - [2-hydroxy-3-nonylphenol polyoxyethylene ether (15)] propyl trimethylammonium chloride, a cationic asphalt emulsifier of polyoxyethylene type, is generated.
3. Performance indicators and storage conditions
The active content of cationic slow cracking and fast setting asphalt emulsifiers is usually greater than 50%, with a pH value of 2-3 and a solubility of 1.8-2.5%. The emulsifier remains stable within 5 days of storage, with a particle size of less than 5um, and indicators such as evaporation residue and sieve residue meet the regulatory requirements.
4. Instructions for use
Heat the water to 60-65 ℃, add the pre measured asphalt emulsifier to the water, stir evenly, and adjust the pH value of the soap solution to 2-3. Heating the asphalt temperature to 120 ℃ can produce emulsified asphalt.
5. Scope of application
Micro surface, cold mix and cold lay thin layer cover, etc.
6. Main technical indicators
(1) Appearance: reddish brown viscous liquid
(2) PH value: Adjust the pH value to 2-3 when in use
(3) Dosage: 2.0~2.5%
(4) Packaging: 200kg/drum
7. Application areas and construction methods
Cationic slow cracking and fast setting asphalt emulsifier is suitable for various road construction projects, such as slurry sealing, micro surface construction, etc. Its open traffic time is usually within 2 hours, suitable for construction scenarios that require rapid restoration of traffic. The usage method is to add emulsifier to water, stir and heat up to 60-65 ℃, adjust the pH value to 2.5, and then produce emulsified asphalt through emulsified asphalt equipment.
In summary, cationic slow cracking and fast setting asphalt emulsifiers have broad application prospects in road construction and maintenance, and their unique properties make them an ideal choice for rapid construction and high-quality pavement maintenance.
