Supercharge Your Innovation With Domain-Expert AI Agents!

Admixture capable of enhancing high-temperature properties of asphalt concrete and preparation method thereof

A technology for asphalt concrete and high temperature performance, which is applied in the field of admixtures that can improve the high temperature performance of asphalt concrete and its preparation field, can solve the problems of limited promotion and application, poor heat aging resistance, etc., and achieves simple process and improved flame retardancy. , The effect of improving low temperature cracking performance and water stability performance

Inactive Publication Date: 2015-11-18
辽宁省交通科学研究院有限责任公司
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Northeast China belongs to the seasonally frozen climate area, with cold winters and hot summers, but polyethylene is very sensitive to environmental stress (chemical and mechanical effects), and has poor heat aging resistance. Further promotion and application of admixtures in the region

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
  • Admixture capable of enhancing high-temperature properties of asphalt concrete and preparation method thereof
  • Admixture capable of enhancing high-temperature properties of asphalt concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An external admixture that can improve the high-temperature performance of asphalt concrete. The chemical composition is: homopolymer PP (T30S) 10wt%, maleic anhydride 0.01wt%, dicumyl peroxide 0.03wt%, tetrakis[β-(3, 5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester 0.03wt%, ethyl acetate 0.05wt%, polyethylene resin 90wt%. The preparation method is as follows:

[0026] (1) Dry the homopolymer PP (T30S) at 50°C for 24 hours, and set aside;

[0027] (2) According to mass percentage: homopolymer PP (T30S) 10wt%, maleic anhydride 0.01wt%, dicumyl peroxide 0.03wt%, tetrakis[β-(3,5-di-tert-butyl-4- Hydroxyphenyl) propionic acid] pentaerythritol ester 0.03wt%, ethyl acetate 0.05wt%, matching raw material, under room temperature, carry out mixing in high-speed mixer, and wherein stirring speed is 3000r / min, and stirring time is 10~15min, obtains high molecular compatibilizer;

[0028] (3) The polymer compatibilizer and polyethylene resin are blended and ...

Embodiment 2

[0032] An external admixture that can improve the high-temperature performance of asphalt concrete. The chemical composition is: homopolymer PP (T30S) 20wt%, maleic anhydride 0.02wt%, dicumyl peroxide 0.06wt%, tetrakis[β-(3, 5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester 0.06wt%, ethyl acetate 0.1wt%, polyethylene resin and high-density polyethylene resin composite material 80wt%. The preparation method is as follows:

[0033] (1) Dry the homopolymer PP (T30S) at 60°C for 24 hours and set aside;

[0034] (2) According to mass percentage: homopolymer PP (T30S) 20wt%, maleic anhydride 0.02wt%, dicumyl peroxide 0.06wt%, tetrakis[β-(3,5-di-tert-butyl-4- Hydroxyphenyl) propionic acid] pentaerythritol ester 0.06wt%, ethyl acetate 0.1wt%, matching raw material, under room temperature, carry out mixing in high-speed mixer, and wherein stirring speed is 4000r / min, and stirring time is 10~15min, obtains high molecular compatibilizer;

[0035] (3) The polymer co...

Embodiment 3

[0039] An external admixture that can improve the high-temperature performance of asphalt concrete. The chemical composition is: homopolymer PP (S1003) 10wt%, maleic anhydride 0.01wt%, dicumyl peroxide 0.03wt%, tetrakis[β-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester 0.03wt%, ethyl acetate 0.05wt%, polyethylene resin, linear polyethylene and low-density polyethylene composite material 90wt%. The preparation method is as follows:

[0040] (1) Dry the homopolymer PP (S1003) at 60°C for 24 hours, and set aside;

[0041] (2) According to mass percentage: homopolymer PP (S1003) 10wt%, maleic anhydride 0.01wt%, dicumyl peroxide 0.03wt%, tetrakis[β-(3,5-di-tert-butyl-4- Hydroxyphenyl) propionic acid] pentaerythritol ester 0.03wt%, ethyl acetate 0.05wt%, matching raw material, under room temperature, carry out mixing in high-speed mixer, wherein stirring speed is 3500r / min, and stirring time is 10~15min, obtains high molecular compatibilizer;

[0042] (3) T...

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
impact strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The invention provides an admixture capable of enhancing high-temperature properties of asphalt concrete and a preparation method thereof. The admixture is composed of the following chemical components: a PP (polypropylene) homopolymer, maleic anhydride, an initiator, an antioxidant, an organic solvent and a PE (polyethylene) material. The preparation method comprises the following steps: (1) heating and drying the PP homopolymer; (2) proportionally mixing the PP homopolymer, maleic anhydride, initiator, antioxidant and organic solvent at room temperature to obtain a high-polymer compatilizer; and (3) carrying out blend extrusion on the high-polymer compatilizer and PE material, and granulating the extruded material to obtain the admixture. The asphalt concrete admixture has the advantages of excellent impact resistance, higher strength, higher toughness and higher melting point. When being used in asphalt concrete, the admixture can enhance the modulus of the asphalt concrete, improve the high-temperature anti-rut capacity of the asphalt concrete and improve the low-temperature cracking resistance and water stability of the asphalt concrete.

Description

technical field [0001] The invention specifically relates to an external admixture capable of improving the high-temperature performance of asphalt concrete and a preparation method thereof. Background technique [0002] With the continuous increase of heavy traffic, rutting has become one of the main forms of early damage to asphalt pavement. In recent years, in order to resist rutting, styrene butadiene styrene (SBS) modified asphalt has been widely used in highway asphalt pavement. However, due to the effect of channelized traffic and a large amount of heavy-duty traffic, even with the use of SBS modified asphalt, some road sections still have rutting defects after they are put into operation. It has to be repaired, which wastes a lot of manpower and material resources, and in the closed traffic process, the traffic service level is seriously reduced. [0003] Judging from the research and application of high modulus asphalt concrete at home and abroad, the method of ad...

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): C08F255/02C08F222/06C08L51/06B29C45/78
Inventor 金鑫朱建平刘云全高明
Owner 辽宁省交通科学研究院有限责任公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com