Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Additive for asphalt mixture, asphalt mixture and preparation method thereof

A technology for asphalt mixtures and additives, which is applied in the field of additives for asphalt mixtures, asphalt mixtures and their preparation, and can solve problems such as unsatisfactory distribution of nano-oxides

Active Publication Date: 2021-11-05
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the deficiencies in the prior art, one of the purposes of the present invention is to provide additives for asphalt mixture and preparation method thereof, to solve the problem of unsatisfactory distribution of nano-oxides in asphalt mixture; the second purpose of the present invention To provide asphalt mixture and its preparation method

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 1

[0033] Configure the following raw materials: 4.6wt% of SBS modified asphalt, 86.9wt% of aggregate, 4.3wt% of mineral powder, and 4.2wt% of additives (composed of nano-zinc oxide and lake asphalt, the mass ratio is 2:25). The specific preparation steps of the asphalt mixture are: 1), add asphalt and additives and heat up to 160-180°C, and stir for 10 minutes; 2), control the temperature at 160-180°C, add aggregates to the asphalt mixture in step 1), Mix for 5 minutes; then add mineral powder and mix for 90 seconds to obtain a high-performance asphalt mixture.

[0034] Wherein, the preparation method of the additive comprises the following steps: adding nano-zinc oxide into a surfactant (sodium fatty alcohol ether sulfate), stirring for 10 minutes, washing, and drying to obtain surface-modified nano-oxides. The nano-oxide is placed in the lake pitch in the molten state, sheared at a high speed for 30 minutes, and the rotation speed is 4000r / min, and finally the additive is obta...

Embodiment 2

[0036] Configure the following raw materials: SBS modified asphalt 5.1wt%, aggregate 87.7wt%, mineral powder 4.3wt%, additive (composition of nano-titanium oxide and lake asphalt, mass ratio is 2:25) 2.9wt%. The specific preparation steps of the asphalt mixture are: 1), add asphalt and additives and heat up to 160-180°C, and stir for about 10 minutes; 2), control the temperature at 160-180°C, and add aggregates to the asphalt mixture in step 1) , and mix for about 5 minutes; then add mineral powder and mix for 90 seconds to obtain a high-performance asphalt mixture.

[0037] Wherein, the preparation method of the additive comprises the following steps: adding nano-titanium oxide into a surfactant (sodium fatty alcohol ether sulfate), stirring for 10 minutes, washing, and drying to obtain a surface-modified nano-oxide, the The nano-oxide is placed in the lake pitch in the molten state, sheared at a high speed for 30 minutes, and the rotation speed is 4000r / min, and finally the ...

Embodiment 3

[0039] The raw materials of the following composition are configured: 4.0wt% of SBS modified asphalt, 87.3wt% of aggregate, 4.5wt% of mineral powder, and 3.5wt% of additive (composition of nano-cerium oxide and lake asphalt). The specific preparation steps of the asphalt mixture are: 1), add asphalt and additives and heat up to 160-180°C, and stir for about 10 minutes; 2), control the temperature at 160-180°C, and add aggregates to the asphalt mixture in step 1) , and mix for about 5 minutes; then add mineral powder and mix for 90 seconds to obtain a high-performance asphalt mixture.

[0040] Wherein, the preparation method of the additive comprises the following steps: adding nano-cerium oxide into a surfactant (sodium fatty alcohol ether sulfate), stirring for 10 minutes, washing, and drying to obtain surface-modified nano-oxides. The nano-oxide is placed in the lake pitch in the molten state, sheared at a high speed for 30 minutes, and the rotation speed is 4000r / min, and f...

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 present invention relates to additives for asphalt mixture, asphalt mixture and preparation method thereof. According to the ratio, heat the asphalt and additives to 160-180°C, mix, and stir for 5-15 minutes to obtain a molten material; mix the aggregate into the molten material for 2-10 minutes to obtain an asphalt mixture; preferably, During mixing, keep the temperature of the molten material at 160-180°C. When the nano-oxide is added in the form of the additive of the present invention, it can improve the dispersibility of the nano-oxide in the asphalt mixture, thereby improving the uniformity of the distribution of each component in the asphalt mixture, and then improving the pavement performance of the paved asphalt pavement .

Description

technical field [0001] The present invention relates to additives for asphalt mixture, asphalt mixture and preparation method thereof. Background technique [0002] Asphalt mixture is a pavement construction material mixed with asphalt, mineral powder, coarse and fine aggregate and binder, and is usually used as a material for road construction and maintenance. Due to the rapid development of road engineering in my country in recent years, the requirements for the quantity and especially the quality of asphalt mixture are getting higher and higher. However, in some areas at present, especially in mountainous areas with bad weather, the asphalt pavement suffers from the joint action of the environment and the load, and the asphalt pavement has a series of diseases such as deformation and cracking. [0003] In view of the above problems, a series of measures such as modifiers are commonly used in asphalt mixtures in the prior art to improve the performance and prolong the lif...

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 Patents(China)
IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/0075C04B18/12C04B14/28C04B14/30C04B24/16C04B24/36
Inventor 谢军詹易群黄拓吴昱林王一帆
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com