Bitumen Emulsion Manufacturing Process

Bitumen Emulsion Manufacturing Process

Bitumen emulsion is mainly composed of the following five main materials: bitumen, water, emulsifier, acid, and modifier. In order to store stability or to satisfy other special uses, a small amount of additives will be added. Metong is the best bitumen emulsion plant manufacturers. Here we provide the professional bitumen emulsion solution.

The manufacturing process of bitumen emulsion can be divided into the following four processes: bitumen preparation, soap preparation, bitumen emulsion, and emulsion storage.

1. Bitumen Preparation

Bitumen is the major component of emulsified bitumen, which account for 50% to 65% of the total mass of emulsified bitumen in general. After spraying or mixing the emulsified bitumen, it is going to demulsify. Then the moisture is evaporated. And what remains on the road surface is the bitumen. Therefore, the preparation of bitumen is critical.

Choosing suitable brand and label of bitumen according to the use of emulsified bitumen. The preparation process of bitumen is mainly the process of heating and keeping the bitumen at the appropriate temperature.

During the process of bitumen preparation, the temperature control is very important. If the temperature of bitumen is too low, which will cause the bitumen to be sticky and the flow to be difficult. Thus it will also cause the emulsification to be difficult. If the temperature is too high, on the one hand, it will cause the bitumen aging. On the other hand, the temperature of the emulsified bitumen will be too high, which will affect the stability of the emulsifier and the quality of the emulsified bitumen.

2. Soap Preparation

According to the different emulsified bitumen, choose suitable  type and dosage of emulsifier and additives to prepare emulsifier aqueous solution (soap liquid).

According to the different types of emulsified bitumen equipment and emulsifier, the manufacturing process of emulsifier aqueous solution (soap liquid) is also different. For the automatic continuous emulsified bitumen production equipment, each component of the soap liquid (water, acid, emulsifier, etc.) is automatically completed by the program which is set up by the production equipment itself. As long as the supply of each material is guaranteed, all these processes can be realized; for semi continuous type or intermittent type production equipment, the soap liquid should be manually prepared according to the formula requirements. Some emulsifier water solution needs to add acid to adjust pH value. Some (such as quaternary ammonium salt) do not need. Some solid emulsifiers at room temperature need to be heated and melted before preparing the soap liquid. Because the temperature of soap liquid is generally controlled between 55 and 75 degrees Celsius before entering the emulsification equipment

3. Bitumen Emulsion

Put the rational preparation of bitumen and soap into the emulsifying machine together. After the mechanical action of pressurization, shearing and grinding, the bitumen will become uniform and fine particles. These particles will disperse evenly in the soap liquid and form bitumen emulsion. The appropriate temperature of emulsified bitumen should be around 85  degrees Celsius.

4. Emulsion Storage

The emulsified bitumen comes out of the emulsifying machine and enters the storage tank after cooling. Mixing device shall be installed in a storage tank and be used to mix regularly. Because it can help to slow down the segregation of emulsified bitumen.
Related Articles
  • Equipment Recommendation: Bitumen Sprayer

    Equipment Recommendation: Bitumen Sprayer

    June 27, 2019Bitumen sprayer is a black pavement construction machine. It is the main equipment for the construction of roads, urban roads, airports and port terminals. It is used to build bitumen pavement or to m...view
  • What Properties Should Asphalt Materials For Road Use Possess?

    What Properties Should Asphalt Materials For Road Use Possess?

    February 28, 2019The asphalt repair supplies used for pavement repairing is different from the ordinary hot mix asphalt mixture. The asphalt mixture is prepared in advance, packed and stored in bags. When pits are fou...view
  • Asphalt Softening Point Tester Operating Procedures

    Asphalt Softening Point Tester Operating Procedures

    June 27, 20191. Place the brass ring on a glass plate coated with glycerol talc powder.2. After the asphalt is heated and melted, it is injected into the ring.3. After natural cooling for 30 minutes, use a hot kni...view
  • Repair of Cracks in Asphalt Pavement

    Repair of Cracks in Asphalt Pavement

    February 28, 2019The cracks of asphalt pavement are mainly longitudinal and transverse cracks in the initial stage of use. For such cracks, joint filling technology is generally used to prevent moisture from entering ...view
  • What Are The Methods Of Asphalt Surface Treatment?

    What Are The Methods Of Asphalt Surface Treatment?

    February 28, 2019Asphalt surface treatment is an early form of pavement structure in China, which uses asphalt materials to treat pavement structure. The main purpose is to protect the pavement structure, prolong the ...view
  • What Is Bituminous Macadam Pavement?

    What Is Bituminous Macadam Pavement?

    February 28, 2019It is also called black macadam pavement or open graded asphalt concrete pavement. Its processing technology and paving technology are close to asphalt concrete pavement, but its pores are large (the ...view
Contact Us
  • +86-571-87177003
  • Room 2201, Building 2, Qiantang Aviation Mansion, No.6, Shimin Street, Hangzhou, China