Modified Elestex preparation

Abstract

A process for preparing the modified emulsified asphalt is prepared from basic asphalt emulsifier and latex as modifier through mixing latex with emulsifier, stirring, heating, mixing with asphalt and stirring. Its advantages are excellent performance, high construction efficiency of road pavement, and long service life.

Description

technical field

[0001] The invention relates to a modified emulsified asphalt and a preparation method thereof, belonging to asphalt emulsification and modification

[0002] technology field. Background technique

[0003] The slurry seal construction technology with emulsified asphalt as the binder has many advantages such as wide application range, convenient construction, energy saving, pollution reduction, and extended construction period. However, due to the disadvantages of single base asphalt, such as strong temperature sensitivity, low viscosity, and poor flexibility, the popularization and application of slurry sealing technology is restricted.

[0004] In view of the outstanding advantages of slurry seal construction technology, its popularization and application is imperative, but the problem is how to improve the performance of emulsified asphalt. That is to modify the emulsified asphalt to make it have excellent low-temperature crack res...

Examples

Embodiment Construction

[0018] The preparation method of the modified emulsified asphalt of the present invention is a water-soluble emulsification method, and its specific operation process is as follows:

[0019] 1. Add quantitative emulsifier, modifier latex, stabilizer, water and other materials into the mixer, fully stir and mix, and control the temperature at 60-95°C, so that the content of emulsifier is 1-10%, and the latex accounts for 1- 20% latex emulsion.

[0020] 2. When the temperature of asphalt reaches 130-170°C, mix and emulsify with latex emulsion at the ratio of (1-4): 1 at the same time through an emulsification mill, then mechanically stir and defoam to obtain modified emulsified asphalt.

technical field

[0001] The invention relates to a modified emulsified asphalt and a preparation method thereof, belonging to asphalt emulsification and modification

[0002] technology field. Background technique

[0003] The slurry seal construction technology with emulsified asphalt as the binder has many advantages such as wide application range, convenient construction, energy saving, pollution reduction, and extended construction period. However, due to the disadvantages of single base asphalt, such as strong temperature sensitivity, low viscosity, and poor flexibility, the popularization and application of slurry sealing technology is restricted.

[0004] In view of the outstanding advantages of slurry seal construction technology, its popularization and application is imperative, but the problem is how to improve the performance of emulsified asphalt. That is to modify the emulsified asphalt to make it have excellent low-temperature crack res...

Examples

Embodiment Construction

[0018] The preparation method of the modified emulsified asphalt of the present invention is a water-soluble emulsification method, and its specific operation process is as follows:

[0019] 1. Add quantitative emulsifier, modifier latex, stabilizer, water and other materials into the mixer, fully stir and mix, and control the temperature at 60-95°C, so that the content of emulsifier is 1-10%, and the latex accounts for 1- 20% latex emulsion.

[0020] 2. When the temperature of asphalt reaches 130-170°C, mix and emulsify with latex emulsion at the ratio of (1-4): 1 at the same time through an emulsification mill, then mechanically stir and defoam to obtain modified emulsified asphalt.