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

Waste sole rubber modified asphalt and preparing method thereof

A technology for modifying asphalt and rubber powder, applied in building components, building insulation materials, construction and other directions, can solve the problems of cumbersome sorting process of rubber powder by color, difficult to implement, less road paving materials, etc., and achieve high temperature rutting resistance. , Enhance the effect of waterproof and interlayer adhesion, and reduce the amount of mixing

Active Publication Date: 2016-03-09
TIANJIN HI TECH ENVIRONMENT DEV CO LTD
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN104558733A discloses a method for activating waste shoe sole rubber powder and its application. The waste shoe sole rubber powder is selected to remove impurities, classified according to color and crushed to 30-60 meshes. After the plasticizer is activated, the reclaimed rubber is prepared. This method can restore the performance of the reclaimed rubber after desulfurization and activation, but the process of sorting the rubber powder by color is cumbersome and difficult to implement.
[0005] At present, there are many methods of activating shoe sole rubber powder to prepare reclaimed rubber, but few of them apply it as an asphalt modifier to road paving materials.

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
  • Waste sole rubber modified asphalt and preparing method thereof
  • Waste sole rubber modified asphalt and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The base asphalt is rapidly heated to 185-190° C., and the waste shoe sole rubber powder (the shoe sole rubber powder is a composition of rubber bottom, tendon bottom, EVA bottom, and TPR bottom) that accounts for 30% of the mass percentage of pitch is added therein with stirring. Mass ratio is 50:25:5:20), in the premixing tank, it was insulated and stirred by high-speed disperser for 15 minutes, and the stirring rate was 400r / min, and then it was sheared for 20 minutes through high-shear emulsifying machine, and the shear rate was 3000r / min, then stirred and developed in the reaction tank for 3 hours, the reaction temperature was kept at 180-185°C, and finally the cross-linking agent accounting for 0.15% of the mass percentage of the base asphalt was slowly added, and the waste shoe sole was obtained by continuing to heat and stir for 1 hour Rubber powder modified asphalt, testing its performance.

Embodiment 2

[0038] The matrix asphalt is rapidly heated to 185-190° C., and the waste shoe sole rubber powder (the shoe sole rubber powder is a composition of rubber bottom, tendon bottom, EVA bottom, and TPR bottom) that accounts for 15% of the mass percentage of the pitch is stirred and added therein. The mass ratio is 50:25:5:20), adding the waste tire rubber powder that accounts for 10% of the asphalt by mass percentage, in the premix tank, it was insulated and stirred by a high-speed disperser for 15 minutes, and the stirring speed was 400r / min, followed by High-shear mixing and emulsifying machine sheared for 20 minutes at a shear rate of 3000r / min, then stirred and developed in a reaction tank for 3 hours, and the reaction temperature was kept at 180-185°C. Slowly add the coupling agent, continue to keep warm and stir for 1 hour to prepare waste shoe sole rubber powder modified asphalt, and test its performance.

Embodiment 3

[0040]The base asphalt is rapidly heated to 185-190°C, and the SBS791-H that accounts for 3.5% by mass of the asphalt is added with stirring, and 10% of the mass percent of the asphalt is added at the same time. , at the bottom of beef tendon, at the bottom of EVA, at the bottom of TPR, its mass ratio is 50:25:5:20), in the premix tank, it was insulated and stirred by a high-speed disperser for 15 minutes, and the stirring speed was 400r / min, and then passed through The high-shear mixing emulsifier shears for 15 minutes at a shear rate of 3000r / min, then stirs and develops in the reaction tank for 3 hours, and the reaction temperature is kept at 175-180°C. Slowly add the joint agent, continue to keep warm and stir for 2 hours to prepare SBS composite waste shoe sole rubber powder modified asphalt, and test its performance.

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 size (mesh)aaaaaaaaaa
particle size (mesh)aaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses waste sole rubber modified asphalt and a preparing method thereof. The waste sole rubber modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 25-35 parts of waste sole rubber powder and 0.15-0.525 part of crosslinking agent. The problem of environment pollution caused by a waste shoe material is effectively solved by using the waste sole rubber powder as a modifier in the asphalt; the waste sole rubber modified asphalt can solve the problem of high temperature track resistance in a heavy load traffic environment, enhances waterproofness of a road surface and inter-layer cohesiveness, prolongs the service life of an asphalt road surface and reduces road surface noise. In addition, the waste sole rubber powder and waste tire rubber powder or SBS are compounded to modify the asphalt, the dosage of the waste tire rubber powder and the SBS is greatly reduced and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of modified asphalt, in particular to waste shoe sole rubber powder modified asphalt and a preparation method thereof. Background technique [0002] With the development of the transportation industry, rubber powder modified asphalt, as a new type of road paving material, is more and more used in highway construction because it can significantly improve the high temperature stability and low temperature cracking performance of asphalt concrete. At present, most of the rubber powder used for modified asphalt is radial tire powder, and waste footwear is rarely recycled due to its low recycling price and low application value, so the general disposal methods are landfill, incineration or random disposal. If discarded, it will cause huge environmental pollution. If these waste shoe materials can be utilized, it will be of great significance in terms of environmental protection, humanity and resource conservatio...

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): C08L95/00C08L21/00C08L23/08C08K13/02C08K3/06C08K5/14C08K3/22C08K5/098
CPCC08K2201/014C08L95/00C08L2201/08C08L2205/025C08L2205/035C08L2312/00C08L21/00C08L23/0853C08K13/02C08K3/06C08K5/14C08K2003/222C08K2003/2296C08K5/098
Inventor 李翠红余强鄂志英
Owner TIANJIN HI TECH ENVIRONMENT DEV CO LTD
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