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

Shape memory epoxy resin modified asphalt mixture and preparation method thereof

A technology of epoxy resin and modified asphalt, applied in the field of material processing, can solve the problems of insufficient anti-deformation ability to resist deformation, not fundamentally solved, limited deformation recovery and self-healing ability of asphalt mixture, and low cost. , environment-friendly, simple preparation process

Inactive Publication Date: 2018-12-07
XIAN UNIV OF POSTS & TELECOMM
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the viscoelastic-plastic material properties of asphalt mixture, it is impossible to avoid the accumulation of plastic deformation and shrinkage deformation of asphalt mixture under the combined action of repeated traffic loads and environmental temperature changes. The deformation ability is not enough to resist the generation and accumulation of deformation, and the deformation recovery and self-healing ability of the asphalt mixture itself is limited, resulting in the high temperature rutting and low temperature cracking of the asphalt pavement have not been fundamentally resolved

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
  • Shape memory epoxy resin modified asphalt mixture and preparation method thereof
  • Shape memory epoxy resin modified asphalt mixture and preparation method thereof
  • Shape memory epoxy resin modified asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The inventive shape-memory epoxy resin modified asphalt mixture is made of asphalt, aggregate, shape-memory epoxy resin and mineral powder. In parts by mass, it includes 4.8 parts of asphalt, 100 parts of aggregate, 1 part of shape memory epoxy resin and 6 parts of mineral powder. Among them, the asphalt is 90# road petroleum asphalt, the aggregate is diorite gravel, which is composed of coarse material and fine material with a weight ratio of 2:1, the mineral powder is made of limestone; the shape memory epoxy resin is made of bisphenol A ring Oxygen resin (3500) (toughening agent), polypropylene glycol diglycidyl ether, and isophorone diamine (curing agent) are obtained by curing reaction; details are as follows:

[0036]1) Prepolymerize the epoxy resin and the toughening agent at 60°C for 30 minutes to obtain a prepolymer;

[0037] 2) According to the content of the epoxy resin, add a curing agent to the prepolymer to carry out a pre-curing reaction with the hydroge...

Embodiment 2

[0042] The difference between this embodiment and Example 1 is that the shape memory epoxy resin is made of bisphenol F type epoxy resin (4500), resorcinol bisglycidyl ether, phthalene The amines are prepared by a curing reaction; the glass transition temperature of the shape memory epoxy is 45°C.

[0043] The preparation method of the shape-memory epoxy resin modified asphalt mixture in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0045] The difference between this example and Example 1 is that the shape-memory epoxy resin is made by curing reaction of novolac epoxy resin (6000), linoleic acid dimer diglycidyl ether, and diethylenetriamine , the glass transition temperature of the shape memory epoxy resin is 50°C.

[0046] The preparation method of the shape-memory epoxy resin asphalt mixture of this embodiment is the same as that of Embodiment 1.

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
Glass transition temperatureaaaaaaaaaa
Granularityaaaaaaaaaa
Glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention provides a shape memory epoxy resin modified asphalt mixture and a preparation method thereof. The preparation method comprises the following steps: taking 4-6 parts of asphalt, 100 parts of aggregate, 1-20 parts of shape memory epoxy resin and 1-6 parts of mineral powder according to parts by mass; mixing the aggregate and the shape memory epoxy resin, and then blending uniformly atthe temperature of 140 DEG C to 180 DEG C to obtain a blending mixture a; mixing the asphalt and the blending mixture a, and then blending uniformly at the temperature of 140 DEG C to 180 DEG C to obtain a mixing mixture b; and mixing the mineral powder and the blending mixture b, then blending uniformly at the temperature of 140 DEG C-180 DEG C, cooling to a room temperature, and thus obtainingthe shape memory epoxy resin modified asphalt mixture. The shape memory epoxy resin modified asphalt mixture has an excellent pavement performance and a remarkable improvement effect on the deformation recovery performance of the asphalt mixture; and the preparation method is simple in operation and low in cost and has low requirements on equipment and the characteristics of environmental protection.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a shape memory epoxy resin modified asphalt mixture and a preparation method thereof. Background technique [0002] Asphalt pavement is widely used in urban roads and expressways because of its excellent road performance, and it is the main pavement structure form of high-grade highways in my country. Asphalt mixture is the surface material of asphalt pavement, which is in direct contact with the external environment. Asphalt mixture is a temperature-sensitive material, its mechanical behavior and performance are greatly affected by temperature, especially under the action of continuous high and low temperature and rapid cooling, asphalt pavement will produce thermal stability such as rutting, crowding, and pushing Diseases, low-temperature cracks and temperature cracks, etc., in the low-temperature rainy and snowy climate, the road surface will freeze and frost, which will se...

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): C04B26/26
CPCC04B26/26C04B24/281C04B14/28C04B14/04C04B24/023C04B24/121
Inventor 周雪艳马骉李宁袁阳光
Owner XIAN UNIV OF POSTS & TELECOMM
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