1. Introduction to slow cracking and fast setting asphalt emulsifier

Slow cracking and fast setting asphalt emulsifier (R5520) is a cationic amide asphalt emulsifier developed by Longteng Road Company. It has excellent asphalt emulsification ability and the characteristic of low dosage use without affecting mixing time and forming time It is a universal microsurface emulsifier. It can also be used to produce BCR, SBS modified emulsified asphalt, and cold mix and cold lay ultra-thin overlay emulsified asphalt.

2. Formula of slow cracking and fast setting asphalt emulsifier

The formula of slow cracking and fast setting asphalt emulsifier mainly includes tall oil fatty acids, lignin amine, nonylphenol, acrylic acid, isopropanol, alkylphenol polyoxyethylene ether and octanol phenol polyoxyethylene ether. The proportions of these components are: 20-30 parts of tall oil fatty acids, 10-20 parts of lignin amine, 5-10 parts of nonylphenol, 10-30 parts of acrylic acid, 5-10 parts of isopropanol, 5-10 parts of alkylphenol polyoxyethylene ether, and 5-10 parts of octylphenol polyoxyethylene ether. The preparation method includes adding tall oil fatty acids to lignin amine, heating to 180-200 ℃ under nitrogen protection, and reacting for 0.5-1 hour to obtain a mixture; Then add other ingredients in proportion and keep at 170-180 ℃ for 2-3 hours to obtain a slow cracking and fast setting amphoteric asphalt emulsifier. This method is easy to control, has mild reaction conditions, is environmentally friendly, and produces emulsifiers that are uniform, delicate, stable in performance, strong in emulsifying ability, and have good slow cracking and fast setting effects. ‌

3. Usage method of slow cracking and fast setting asphalt emulsifier

At room temperature, it is a light red viscous liquid. Before use, heat it with an electric heating belt to above 40 ° C and pour or pump it. When using, adjust the soap solution pH to 2.0-2.5 with hydrochloric acid.

4. Application process of slow cracking and fast setting asphalt emulsifier

Micro surface, cold mix and cold lay ultra-thin cover

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

(1) Appearance: Light red viscous liquid

(2) Active ingredient content: 70%

(3) PH value: 7.0~9.0

(4) Dosage: 1.5% -1.8% (physical addition amount, base asphalt) 1.8% -2.5% (physical source addition amount, modified asphalt)

(5) Packaging: 200kg/drum

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

In specific applications, slow cracking and fast setting asphalt emulsifier has extensive compatibility of lotion stone, excellent storage and good mixing performance, and is suitable for slurry seal coat and upper seal coat construction of emulsified asphalt.