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

Quick-setting emulsified asphalt cold patch material and preparation method thereof

A technology of emulsified asphalt and cold patch, which is applied in the field of road construction materials, can solve problems such as insufficient adhesion between the cold patch and the original base surface, shortened service life of the cold patch, and delamination of the interface to improve mechanical properties. Performance and bonding performance, fast strength formation, rapid formation effect

Inactive Publication Date: 2020-05-08
广州市市维新材料科技有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional cold patching material has two major defects: one is that the strength is slowly formed, relying on the volatilization of the solvent, the asphalt gradually thickens, and gradually forms the strength. This process generally takes 5 to 7 days, and usually in the process of forming strength, cold patching The repairing position of the material is prone to damage again, which shortens the service life of the cold patching material; second, the pits and grooves on the asphalt pavement usually appear concentrated after raining. In order to repair quickly, it is impossible to wait for the road to dry before repairing. Insufficient adhesion of the base surface, easy to cause delamination and peeling off of the interface

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quick-setting emulsified asphalt cold patch material and preparation method thereof
  • Quick-setting emulsified asphalt cold patch material and preparation method thereof
  • Quick-setting emulsified asphalt cold patch material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a quick-setting emulsified asphalt cold patch, which is composed of quick-setting anionic emulsified asphalt, a coagulation-accelerating film-forming agent and mineral materials in a weight ratio of 1:1.8:16.6. in,

[0040] The coagulant film-forming agent is composed of calcium chloride powder and water in a weight ratio of 15:85.

[0041] The quick-setting anionic emulsified asphalt is composed of the following raw materials in terms of weight percentage: 60% linear SBS modified asphalt, 1.5% anionic emulsifier and 38.5% water. The solid content of the quick-setting anionic emulsified asphalt is 55% to 60%, and the linear SBS content in the linear SBS modified asphalt is 4.5%.

[0042] The mineral material is composed of coarse aggregate, fine aggregate, waste recycled RAP and mineral powder, and the weight ratio of coarse aggregate, fine aggregate, waste recycled RAP and mineral powder is 28:26:42:4. Coarse aggregates are selected from grav...

Embodiment 2

[0054] This embodiment provides a quick-setting emulsified asphalt cold patch, which is composed of quick-setting anionic emulsified asphalt, a coagulation-accelerating film-forming agent and mineral materials in a weight ratio of 1:1.2:12.5. in,

[0055] The film-accelerating agent is composed of magnesium chloride powder and water in a weight ratio of 10:90.

[0056] The quick-setting anionic emulsified asphalt is composed of the following raw materials in terms of weight percentage: 55% of linear SBS modified asphalt, 1.2% of anionic emulsifier and 43.8% of water. The solid content of the quick-setting anionic emulsified asphalt is 55% to 60%, and the linear SBS content in the linear SBS modified asphalt is 4.5%.

[0057] The mineral material is composed of coarse aggregate, fine aggregate, waste recycled RAP and mineral powder, and the weight ratio of coarse aggregate, fine aggregate, waste recycled RAP and mineral powder is 22:22:50:6. Coarse aggregates are selected fro...

Embodiment 3

[0069] This embodiment provides a quick-setting emulsified asphalt cold patch, which is composed of quick-setting anionic emulsified asphalt, a coagulation-accelerating film-forming agent and mineral materials in a weight ratio of 1:1.5:14. in,

[0070] The coagulant film-forming agent is composed of sodium chloride powder and water in a weight ratio of 13:87.

[0071] The quick-setting anionic emulsified asphalt is composed of the following raw materials in terms of weight percentage: 58% linear SBS modified asphalt, 1.4% anionic emulsifier and 40.6% water. The solid content of the quick-setting anionic emulsified asphalt is 55% to 60%, and the linear SBS content in the linear SBS modified asphalt is 4.5%.

[0072] Mineral materials are composed of coarse aggregate, fine aggregate, waste recycled RAP and mineral powder. The weight ratio of coarse aggregate, fine aggregate, waste recycled RAP and mineral powder is 35:32:30:3. Coarse aggregates are selected from gravel or was...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a quick-setting emulsified asphalt cold patch material and a preparation method thereof. The quick-setting emulsified asphalt cold patch material is composed of quick-setting anionic emulsified asphalt, a coagulation-promoting film-forming agent and mineral aggregate according to a weight ratio of 1:(1.2-1.8):(12.5-16.6), the coagulation-promoting film-forming agent is composed of chloride powder and water in a weight ratio of (10-15):(85-90), and the quick-setting anionic emulsified asphalt is composed of, by weight, 55-60% of linear SBS modified asphalt, 1.2-1.5% of an anionic emulsifier, and the balance of water. The quick-setting anionic emulsified asphalt is adopted and can be used in a humid environment, the quick-setting anionic emulsified asphalt contains the linear SBS modified asphalt, and the mechanical properties and the bonding property of the quick-setting emulsified asphalt cold patch material can be well improved; and the preparation method is simple and convenient to operate, and the prepared quick-setting emulsified asphalt cold patch material can be used for quickly constructing and quickly forming strength and is high in environmental adaptability.

Description

technical field [0001] The invention relates to the technical field of road building materials, in particular to a quick-setting emulsified asphalt cold patch and a preparation method thereof. Background technique [0002] At present, as a way of repairing potholes at room temperature, cold patching materials are more and more used in emergency repairs. The traditional cold patching material has two major defects: one is that the strength is slowly formed, relying on the volatilization of the solvent, the asphalt gradually thickens and gradually forms the strength, this process generally takes 5 to 7 days, and usually in the process of forming strength The location of the repaired material is prone to damage again, which shortens the service life of the cold patching material; second, the pits and grooves on the asphalt pavement usually appear concentrated after raining. In order to repair quickly, it is impossible to wait for the road to dry before repairing. Insufficient ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B111/72
CPCC04B26/26C04B2111/0075C04B2111/72C04B2201/10C04B22/124C04B14/02C04B14/06C04B14/28C04B18/16C04B22/062C04B18/0427C04B22/12
Inventor 朱东浩丘俊锋许龙洪晶
Owner 广州市市维新材料科技有限公司