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

Biomass material-based recycled asphalt and preparation method thereof

A biomass material, recycled asphalt technology, applied in building insulation materials, building structures, building components, etc., can solve the problems affecting the low-temperature bonding strength and ductility of waste asphalt, poor low-temperature performance of recycled asphalt, and the bonding effect of rejuvenating agents. It can achieve the effect of obvious anti-thermal oxidation aging effect, improved low-temperature crack resistance, and inhibition of further aging.

Active Publication Date: 2019-07-26
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high aromatic content and many unsaturated bonds in the petroleum-based rejuvenator, it is easy to undergo oxidation reaction to generate carbonyl under high temperature conditions, so the anti-aging performance is poor
In addition, the aging effect causes asphalt to become hard and brittle, which seriously affects the low-temperature bonding strength and ductility of waste asphalt. Conventional asphalt rejuvenators have poor bonding effects, so the prepared recycled asphalt has poor low-temperature performance.

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
  • Biomass material-based recycled asphalt and preparation method thereof
  • Biomass material-based recycled asphalt and preparation method thereof
  • Biomass material-based recycled asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of biomass material-based regenerated asphalt, including the following raw materials (by mass): 30 parts of waste and old asphalt, 20 parts of new asphalt, 15 parts of wood tar, 5 parts of biomass fiber, 3.5 parts of plasticizer, 0.8 parts of stable agent, 0.3 parts of compatibilizer.

[0040] A method for preparing biomass material-based regenerated asphalt, comprising the following steps: (1) mixing new asphalt and waste asphalt in proportion, heating to 160°C, adding wood tar and biomass fiber to the heated mixed asphalt in sequence, Cut at a rate of 2000r / min for 20 minutes and then stir for 20 minutes to obtain the primary sample of regenerated asphalt; (2) Add plasticizer, stabilizer and compatibilizer to the primary sample of regenerated asphalt obtained in step (1), and stir for 15 minutes , to produce recycled asphalt.

Embodiment 2

[0042] A kind of biomass material-based regenerated asphalt, including the following raw materials (by mass parts): 40 parts of waste and old asphalt, 20 parts of new asphalt, 15 parts of wood tar, 6 parts of biomass fiber, 5.0 parts of plasticizer, 1.0 part of stable agent, 0.4 parts of compatibilizer.

[0043] A method for preparing biomass material-based regenerated asphalt, comprising the following steps: (1) mixing new asphalt and waste asphalt in proportion, heating to 160°C, adding wood tar and biomass fiber to the heated mixed asphalt in sequence, Cut at a rate of 2500r / min for 25 minutes and then stir for 25 minutes to obtain a primary sample of regenerated asphalt; (2) Add plasticizer, stabilizer, and compatibilizer to the primary sample of regenerated asphalt obtained in step (1), and stir for 20 minutes , to produce recycled asphalt.

Embodiment 3

[0045] A kind of biomass material-based regenerated asphalt, including the following raw materials (by mass): 30 parts of waste asphalt, 10 parts of new asphalt, 10 parts of wood tar, 3 parts of biomass fiber, 3.0 parts of plasticizer, 0.5 parts of stable agent, 0.2 parts of compatibilizer.

[0046]A method for preparing biomass material-based regenerated asphalt, comprising the following steps: (1) mixing new asphalt and waste asphalt in proportion and heating to 150°C, adding wood tar and biomass fiber to the heated mixed asphalt in sequence, Cut at a rate of 1500r / min for 15 minutes and then stir for 15 minutes to obtain the primary sample of recycled asphalt; (2) Add plasticizer, stabilizer and compatibilizer to the primary sample of recycled asphalt obtained in step (1), and stir for 10 minutes , to produce recycled asphalt.

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
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses biomass material-based recycled asphalt which comprises, by weight, 30-40 parts of waste asphalt, 10-20 parts of new asphalt, 10-20 parts of wood tar oil, 3-6 parts of biopolymer fibers, 3-5 parts of plasticizers, 0.5-1.5 parts of stabilizers and 0.2-0.5 part of compatibilizers. The invention further discloses a preparation method of the biomass material-based recycled asphalt and preparation method. The method includes the steps: preparing a recycled asphalt prototype sample; preparing recycled asphalt. The biomass material-based recycled asphalt can effectively restore pavement performances of waste asphalt, antioxidant aging and low-temperature anti-cracking performances of the waste asphalt are remarkably improved, and a preparation process is simple, easy to operate and low in preparation cost.

Description

technical field [0001] The invention belongs to the field of new materials, and also relates to the field of sustainable recycling of waste, in particular to a biomass material-based regenerated asphalt and a preparation method thereof. Background technique [0002] According to incomplete statistics, about 120 million tons of waste asphalt mixtures are produced on highways alone in my country every year. If the recycling of waste pavement materials (RAP) is applied to road infrastructure construction and maintenance, it will turn waste into treasure and form a circular economy. The industrial chain of the model can avoid land occupation and environmental pollution caused by stacking of waste materials, reduce the demand for stone materials, asphalt, and cement, and reduce road construction and maintenance costs at the same time, which has significant social and environmental benefits. [0003] At present, the recycling and recycling of waste asphalt mixture in my country mos...

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): C08L95/00C08L97/02C08K5/12C08K5/17
CPCC08L95/00C08L2201/08C08L2205/025C08L2205/035C08L2205/16C08L97/02C08K5/12C08K5/17C08K5/09
Inventor 刘克非蒋康张雪飞吴超凡叶泳周佳
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY 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