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

A chemically modified thermosetting asphalt mixture

A technology of asphalt mixture and chemical modification, which is applied in the field of road engineering asphalt mixture, can solve the problems of difficult pavement quality control, no public reports, irregular cracks, etc., and achieve superior mechanical properties and road performance, and widely Application prospect, excellent effect of fatigue resistance

Active Publication Date: 2019-03-15
云南畅坦科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its harsh construction conditions, it is difficult to control the pavement quality in the pavement project.
Because the viscosity of chemically modified thermosetting asphalt concrete is related to temperature and time, it is easy to cause excessive viscosity or even gelation due to insufficient control of temperature and time, which makes chemically modified thermosetting asphalt concrete agglomerate and become "dead material". Compaction, unable to continue to react to form a cross-linked network, resulting in early disease problems such as irregular cracks, loose cracks, etc.
[0004] The chemically modified thermosetting asphalt concrete provided by the present invention has no public report identical with the present invention through document retrieval

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
  • A chemically modified thermosetting asphalt mixture
  • A chemically modified thermosetting asphalt mixture
  • A chemically modified thermosetting asphalt mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The chemically modified thermosetting asphalt mixture of the present invention is obtained through the following steps:

[0019] (1) Mix the base asphalt, curing agent, auxiliary agent and other modifiers in proportion and then stir for 30 minutes at a temperature of 120°C to obtain the chemically modified thermosetting asphalt B component; the base asphalt is SK70# road With grade A petroleum asphalt, the mass percentage is 79.68%, the curing agent is polysebic anhydride, the mass percentage is 13.94%, the curing accelerator is imidazole, other auxiliary agents are sorbate, curing accelerator and other auxiliary agent quality The percentage is 6.38%;

[0020] (2) Heating bisphenol A type epoxy resin E-51 to 80° C. to obtain component A of epoxy asphalt.

[0021] (3) Grind strong hydrophobic stones from limestone or magmatic rock into mineral aggregates with a particle size below 13mm (see Table 1), weigh 10kg of aggregates of each particle size according to the target...

Embodiment 2

[0024] The chemically modified thermosetting asphalt mixture of the present invention is obtained through the following steps:

[0025] (1) Mix the base asphalt, curing agent, auxiliary agent and other modifiers in proportion and stir for 20 minutes at a temperature of 120°C to obtain the chemically modified thermosetting asphalt B component; the base asphalt is SK70# road With grade A petroleum asphalt, the mass percentage is 79.68%, the curing agent is polysebic anhydride, the mass percentage is 13.94%, the curing accelerator is imidazole, other auxiliary agents are sorbate, curing accelerator and other auxiliary agent quality The percentage is 6.38%;

[0026] (2) Heating bisphenol A type epoxy resin E-51 to 80° C. to obtain component A of epoxy asphalt.

[0027] (3) Grind the strongly hydrophobic stones in limestone or magmatic rock into mineral aggregates with a particle size below 13mm (see Table 1), weigh 10Kg of aggregates of each particle size according to the target ...

Embodiment 3

[0030] The chemically modified thermosetting asphalt mixture of the present invention is obtained through the following steps:

[0031] (1) Mix the base asphalt, curing agent, auxiliary agent and other modifiers in proportion and stir for 20 minutes at a temperature of 130°C to obtain the chemically modified thermosetting asphalt B component; the base asphalt is SK70# road With grade A petroleum asphalt, the mass percent is 73.8%, the curing agent is polysebic anhydride, the mass percent is 19.41%, the curing accelerator is imidazole, other auxiliary agents are sorbate, curing accelerator and other auxiliary agent quality The percentage is 6.79%;

[0032] (2) Heating bisphenol A type epoxy resin E-51 to 80° C. to obtain component A of epoxy asphalt.

[0033] (3) Grind the strongly hydrophobic stones in limestone or magmatic rocks into mineral aggregates with a particle size below 13mm (see Table 1), weigh 10kg of aggregates of each particle size according to the target gradat...

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

No PUM Login to View More

Abstract

Belonging to the technical field of road engineering asphalt mixtures, the invention relates to a chemically modified thermosetting asphalt mixture. According to the chemically modified thermosetting asphalt mixture, epoxy resin, a curing agent and related assistants are added into asphalt, chemical reaction is carried out on the epoxy resin and curing agent to form a cross-linked network so as to change the asphalt performance, and asphalt is transformed from a thermoplastic material to a thermosetting material. The preparation steps include: preparation of a chemically modified thermosetting asphalt component B, preparation of an asphalt mixture, and preparation of chemically modified thermosetting asphalt mixture. The invention has the beneficial effects that: 1. the chemically modified thermosetting asphalt mixture has more superior mechanical properties and pavement performance, and has the advantages of high strength, excellent fatigue resistance, and good durability and aging resistance; and 2. the chemically modified thermosetting asphalt mixture greatly reduces the influence of variable factors in the construction process, and has low construction difficulty, and better guaranteed and controllable quality, thus having very broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of asphalt mixture for road engineering, and in particular relates to a chemically modified thermosetting asphalt mixture. Background technique [0002] Since the beginning of the 21st century, my country's highway construction has entered an era of rapid development, followed by long-span steel box girder bridge deck pavement, long longitudinal slope pavement pavement, heavy-duty traffic pavement pavement and super-long tunnel road pavement. Paving and other issues. In extreme weather conditions, special road pavement and other projects, higher requirements are put forward for pavement materials and processes. [0003] In order to meet the needs of traffic construction and development, and build quality projects, it is necessary to develop new high-performance materials. After the epoxy asphalt is cured, the thermoplastic properties of the asphalt are transformed into a thermosetting material, which has ex...

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 Patents(China)
IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/0075C04B24/04C04B24/045C04B24/128C04B24/281C04B14/28C04B14/14
Inventor 封基良魏亚晏永赵锡生其他发明人请求不公开姓名
Owner 云南畅坦科技有限公司
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