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

Preparation method of RAP large-proportion mixing amount asphalt regenerant

An asphalt regenerant with a large proportion of technology, used in building components, building insulation materials, buildings, etc., can solve the problem of low regeneration efficiency of waste asphalt mixture, and achieve the effect of improving bonding effect, enhancing interface performance and improving durability. Effect

Inactive Publication Date: 2021-01-29
哈工元科技(辽宁)有限公司
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low regeneration efficiency of waste asphalt mixture, and provide a method for preparing asphalt regeneration agent with a large proportion of RAP

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

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific implementation mode one: the preparation method of the asphalt rejuvenator with a large proportion of RAP in this implementation mode is implemented according to the following steps:

[0014] 1. Weigh 40-60 parts of bio-asphalt, 40-60 parts of rubber oil, 5-10 parts of styrene, 3-5 parts of SBS and 5-10 parts of corn stalk fiber according to the parts by mass as raw materials;

[0015] 2. Put the bio-asphalt in the raw material in a container, add styrene, stir evenly, add part of the rubber oil in the raw material, continue to stir, add corn straw fiber, stir to obtain a mixed solution, and heat it at a temperature of 50-70°C 3 to 5 hours to obtain component A;

[0016] 3. Put the remaining rubber oil in the raw material in a container, add SBS particles, and stir at 35-50°C to obtain component B;

[0017] 4. Mix component A and component B evenly to obtain asphalt rejuvenator with large proportion of RAP.

specific Embodiment approach 2

[0018] Embodiment 2: This embodiment is different from Embodiment 1 in that the fiber length of the corn stalk fiber is 0.5 mm to 5 mm, and the fiber diameter is 50 to 300 μm.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step two, the bio-asphalt in the raw material is placed in a container, styrene is added, and stirred at 180r / min to 240r / min at room temperature for 10- 15 minutes.

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
Fiber lengthaaaaaaaaaa
Fiber diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of an RAP large-proportion mixing amount asphalt regenerant, belongs to the field of road engineering, and aims to solve the problem that the regenerationefficiency of a waste asphalt mixture is relatively low. The preparation method comprises the following steps: 1, weighing biological asphalt, rubber oil, styrene, SBS and corn straw fibers as raw materials; 2, stirring and mixing biological asphalt, styrene, a part of rubber oil and corn straw fibers to obtain a component A; 3, adding SBS particles into the rubber oil, and heating and stirring toobtain a component B; and 4, mixing the component A and the component B to obtain the asphalt regenerant. After the biological asphalt reacts with styrene, the bonding effect between the recycled asphalt and stone can be improved. SBS and a rubber oil solution can be used as interface enhancing components, so that the interface performance of the mixture is further enhanced, and the durability isimproved, and the stability of RAP large-proportion regeneration performance is ensured. The asphalt regenerant prepared by the invention can realize large-proportion regeneration application with RAP exceeding 50%.

Description

technical field [0001] The invention belongs to the field of road engineering, and in particular relates to a preparation method of an asphalt regeneration agent with a large proportion of RAP. Background technique [0002] In recent years, with the prosperity of my country's economy, the construction of my country's highway engineering field has also developed rapidly. By the end of 2018, my country's expressway mileage reached 143,000 kilometers, ranking first in the world. Asphalt concrete pavement is widely used in high-grade highways because of its convenient maintenance and high driving comfort. However, the design life of asphalt pavements in my country is about 10 to 15 years. So far, a considerable number of asphalt pavements have reached or approached their service life, and are facing large-scale maintenance and even reconstruction. In addition, due to the shortage of resources and the requirements of environmental protection policies, high-quality stone materia...

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): C08L95/00C08L21/00C08L53/02C08L97/02
CPCC08L95/00C08L21/00C08L2205/035C08L2205/16
Inventor 冯德成宋宇易军艳裴忠实
Owner 哈工元科技(辽宁)有限公司
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