Unlock instant, AI-driven research and patent intelligence for your innovation.

Emulified and modified asphalt and its prepn

A technology for emulsifying modified asphalt and emulsifiers, which is applied in the processing of tar asphalt/petroleum asphalt/natural asphalt, and the petroleum industry, and can solve the problems of restricting the popularization and application of slurry seal technology, strong temperature sensitivity, and poor flexibility , to achieve the effect of shortening the closing time of traffic, excellent performance and obvious effect

Inactive Publication Date: 2003-09-10
杨林江
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] 1. Preparation of modified asphalt

[0018] (1) When the temperature of the base asphalt reaches 150-170°C, add 1-20% (accounting for the weight percentage of the base asphalt) of SBS modifier to fully disperse and swell;

[0019] (2) Pass the swollen matrix asphalt and SBS through a high-speed shear mill to achieve refinement and further dispersion;

[0020] (3) Under the condition of 140-190°C, incubate for a certain period of time to make qualified modified asphalt.

[0021] 2. Preparation of emulsion

[0022] Add quantitative emulsifier, stabilizer, water, hydrochloric acid and other materials into the mixer and mix thoroughly. The temperature is controlled at 60-95° C., and an aqueous emulsion with an emulsifier content of 1-10% is prepared.

[0023] 3. Put the modified asphalt and the emulsion in the ratio of (1-4): 1 at the same time through the emulsification mill, then mechanically stir and defoam to make the emulsified modified asphalt.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The modified and emulsified asphalt consists of asphalt as substrate, emulsifier and modified latex and features the amount of emulsifier and modifier latex added into the substrate being 1-20 wt% and 1-10 wt% of asphalt substrate separately. During its preparation, modifier is first added into asphalt substrate through heating, stirring and grinding in a grinding machine to produce modified asphalt; and emulsifier is then added into the modified asphalt through mixing and emulsifying in a emulsifying machine to obtain the modified and emulsified asphalt. The modified and emulsified asphalt has excellent performance and is used in road maintenance.

Description

technical field [0001] The invention relates to an emulsified modified asphalt and a preparation method thereof, belonging to the technical field of asphalt modification and emulsified processing. Background technique [0002] 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. [0003] 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 r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C10C3/00
Inventor 杨林江
Owner 杨林江