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

Warm mix type high modulus asphalt mixture additive and preparation method thereof

A kind of asphalt mixture, high modulus technology, applied in the direction of building insulation materials, building components, buildings, etc., can solve the problem of weakening the low temperature performance and water stability of asphalt mixture, limiting large-scale promotion and application, compatibility and Poor uniform dispersion and other problems, to achieve the effect of improving convenience, improving low temperature performance and water stability, and improving compatibility

Inactive Publication Date: 2020-01-03
CHINA FIRST HIGHWAY ENG +1
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high-modulus anti-rutting agent products with better performance on the market are expensive, mostly around 20,000 yuan
The high price limits its large-scale promotion and application
[0004] In order to reduce production costs and promote the popularization and application of anti-rutting agent products in engineering, researchers often use waste or recycled polyolefins and other materials such as rubber powder to compound anti-rutting agents for asphalt mixtures, such as Chinese patents CN102964525A, CN101451016A, CN101805470A and CN103897411A all disclose the composition of anti-rutting additives, but there are some defects, such as poor compatibility and uniform dispersion between modifiers, mineral materials or asphalt, poor improvement effect at high temperature, or Although the high temperature performance has been greatly improved, it has weakened the low temperature performance and water stability of the asphalt mixture to a certain extent.

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
  • Warm mix type high modulus asphalt mixture additive and preparation method thereof
  • Warm mix type high modulus asphalt mixture additive and preparation method thereof
  • Warm mix type high modulus asphalt mixture additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Warm-mix high modulus asphalt mixture additives include the following components by weight, 10 kg of polymer organic wax, 25 kg of thermoplastic elastomer polymer polypropylene, 5 kg of waste truck tire rubber powder (30 mesh), KH~550 5 kg of silane coupling agent, 5 kg of inorganic filler cement, 7 kg of anti-aging agent p-diphenylamine and 40 kg of hard asphalt.

[0029] The preparation process of warm-mix high-modulus asphalt mixture additives is as follows: First, use the auxiliary device of the silo, that is, the electronic metering device to accurately weigh the content of each component, and then control the content of each component in the silo according to the proportion of the components. The feeding speed and the inclination angle of the feed chute, each component is introduced into the feed hopper of the screw extruder through the feed trough, and the mixed components enter the screw extruder through the funnel for mixing, and are extruded by the extruder. A...

Embodiment 2

[0033] The economical high-modulus asphalt mixture additive includes the following components according to the weight, 12 kilograms of high molecular organic wax, 35 kilograms of thermoplastic elastomer polymer low-density polyethylene, 7 kilograms (50 mesh) of waste truck tire rubber powder, titanic acid 5 kg of ester coupling agent, 5 kg of 1:1 mixture of inorganic filler cement and nano-calcium carbonate, 8 kg of anti-aging agent disulfide and 45 kg of natural asphalt.

[0034] The preparation process of economical high modulus asphalt mixture additives is as follows: First, use the auxiliary device of the silo, that is, the electronic metering device to accurately weigh the content of each component, and then control the content of each component in the silo according to the proportion of the components. The material speed and the inclination angle of the feed trough, each component is introduced into the feed hopper of the screw extruder through the feed chute, the mixed c...

Embodiment 3

[0038] The economical high modulus asphalt mixture additive includes the following components according to the weight, 8 kilograms of high molecular organic wax, 45 kilograms of thermoplastic elastomer polymer polystyrene, 5 kilograms (40 mesh) of waste car tire rubber powder, aluminate 5 kg of coupling agent, 5 kg of inorganic filler cement and nano calcium carbonate 2:1 mixture, 9 kg of anti-aging agent diphenylamine and 50 kg of hard asphalt.

[0039] The preparation process of economical high modulus asphalt mixture additives is as follows: First, use the auxiliary device of the silo, that is, the electronic metering device to accurately weigh the content of each component, and then control the content of each component in the silo according to the proportion of the components. The material speed and the inclination angle of the feed trough, each component is introduced into the feed hopper of the screw extruder through the feed chute, the mixed components enter the screw e...

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 sizeaaaaaaaaaa
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a warm mix type high modulus asphalt mixture additive and a preparation method thereof. The warm mix type high modulus asphalt mixture additive comprises the following raw materials in parts by weight: 15-35 parts of polymer organic wax, 25-40 parts of thermoplastic elastomer polymer, 10-20 parts of waste rubber powder, 5-10 parts of coupling agent, 5-10 parts of inorganicfiller, 5-15 parts of anti-aging agent and 10-35 parts of pitch-based material. Through the specific proportioning and processing technology of the invention, the additive obtained after compounding can reduce the production temperature of the mixture, improve the high-temperature rutting resistance of the asphalt mixture, and improve the low-temperature performance and water stability of the asphalt mixture to a certain extent. Compared with the imported rutting resistance agents on the market, the additive has low production cost and good application prospects.

Description

technical field [0001] The invention relates to an asphalt mixture additive and a preparation method thereof, in particular to a warm-mix high-modulus asphalt mixture additive which improves the anti-rutting performance of the road surface and can reduce the mixing temperature of the mixture and the preparation method thereof. Background technique [0002] In recent years, the rapid development of the national economy has greatly improved people's lives and production methods, but at the same time it has also brought great challenges to the transportation industry, such as the rapid increase in traffic volume, serious overloading, increasing vehicle axle loads and The increasingly severe external climate and environment not only greatly reduce the service life of the built expressways, but also make the new roads appear earlier with diseases, such as ruts, water damage, cracks, etc. These diseases not only seriously affect the road surface Driving comfort, and the occurrence...

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): C08L95/00C08L23/12C08L101/00C08L19/00C08L23/06C08L25/06C08K13/02C08K5/18C08K5/544C08K3/013C08K5/372
CPCC08K2003/265C08K2201/011C08L95/00C08L2205/035C08L2207/04C08L2207/066C08L2207/24C08L23/12C08L101/00C08L19/003C08K5/18C08K5/544C08K3/013C08L23/06C08K13/02C08K3/26C08K5/372C08L25/06
Inventor 巩智利许飞胡留富薛峰
Owner CHINA FIRST HIGHWAY ENG
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