Preparation method of high-strength composite modified emulsified asphalt

A composite modified asphalt and composite modification technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of accelerating the demulsification speed of emulsified asphalt, insufficient shearing and durability, and enhancing emulsified asphalt. Restore the effect of enhancing original properties, reducing looseness and improving adhesion

Pending Publication Date: 2021-02-19
HEBEI LUNTE PETROLEUM CHEM
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned technical problems, the present invention is to provide a product with good stability and high bonding strength, which can reduce the problems of sticking wheels during construction, weak bonding between layers, long maintenance time, i

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
  • Preparation method of high-strength composite modified emulsified asphalt
  • Preparation method of high-strength composite modified emulsified asphalt
  • Preparation method of high-strength composite modified emulsified asphalt

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036]Example 1

[0037]A method for preparing high-strength composite modified emulsified asphalt. The addition amounts of the following substances are based on the quality of SBS modified asphalt:

[0038]S1. Heat and stir the SBS modified asphalt that meets the requirements of the specification to 175℃, and mix it with 3% of the mass of SBS modified asphalt (to ensure that the viscosity index meets the requirements) rosin resin and 1.5% polystyrene The diene copolymer SBR modifier is sheared by a high-speed shearing machine for 120 minutes to obtain a high-strength SBS modified asphalt. The shear speed is 700r / min during preparation, and the high-strength SBS modified asphalt is cooled to 150°C in the air;

[0039]S2. Take the high-strength SBS modified asphalt as the standard, add 2% of the rubber oil of the high-strength SBS modified asphalt to the high-strength composite modified asphalt, and add 0.4% of the high-strength SBS modified asphalt to the oil-soluble liquid warm mix Regenera...

Example Embodiment

[0043]Example 2

[0044]A method for preparing high-strength composite modified emulsified asphalt. The addition amounts of the following substances are based on the quality of SBS modified asphalt:

[0045]S1. Heat the SBS modified asphalt that meets the requirements of the specification to 180°C, and mix it with a mixture of rosin resin and coumarone resin 2.5% of the quality of the SBS modified asphalt (the amount of mixing to ensure that the viscosity index meets the requirements), more than 2% Chain polyolefin modifier, use high-speed shearing machine to shear for 110min to obtain high-strength SBS modified asphalt with a shear speed of 800r / min, and cool the high-strength SBS modified asphalt to 150℃ in air;

[0046]S2. Taking high-strength SBS modified asphalt as the standard, add 3% of the high-strength SBS modified asphalt with rubber oil to the high-strength composite modified asphalt, and add 0.5% of the high-strength SBS modified asphalt with oil-soluble liquid warm mix Regeneran...

Example Embodiment

[0050]Example 3

[0051]A method for preparing high-strength composite modified emulsified asphalt. The addition amounts of the following substances are based on the quality of SBS modified asphalt:

[0052]S1. Heat the SBS modified asphalt that meets the requirements of the specification to 185℃, and mix it with 3% of the SBS modified asphalt (to ensure that the viscosity index meets the requirements) terpene resin, and 2% of the multi-chain polyolefin modified asphalt. Using a high-speed shearing machine to cut for 120 minutes to obtain high-strength SBS modified asphalt with a shear speed of 750r / min. Cool the high-strength SBS modified asphalt to 145°C in the air;

[0053]S2. Taking high-strength SBS modified asphalt as the standard, add 2.5% of the high-strength SBS modified asphalt with rubber oil to the high-strength composite modified asphalt, and add 0.4% of the high-strength SBS modified asphalt with oil-soluble liquid warm mix Regenerant, the temperature is kept at 175℃, and the h...

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

The invention relates to the technical field of road asphalt materials, in particular to a preparation method of high-strength composite modified emulsified asphalt. The asphalt has the advantages that the stability is better, the bonding strength is high, and the problems of wheel sticking, infirm inter-layer bonding, long maintenance time, insufficient shearing property and durability and the like in the construction process are reduced. The process is simple, the production cost can be effectively reduced, the viscosity and bonding performance of the emulsified asphalt are enhanced, and thedemulsification speed of the emulsified asphalt is increased; the composite modified emulsified asphalt is composed of high-strength composite modified asphalt and an emulsifier aqueous solution, theoil-water mass ratio of a mixture of the high-strength composite modified asphalt and the emulsifier aqueous solution is 60: 40-65: 35, that is, the content of evaporation residues of the high-strength composite modified emulsified asphalt is 60%-65%, and the preparation method comprises the following steps: S1, carrying out asphalt heating treatment; S2, preparing high-strength SBS modified asphalt; S3, preparing high-strength composite modified asphalt; S4, preparing an emulsifier aqueous solution; and S5, preparing the high-strength composite modified emulsified asphalt.

Description

technical field [0001] The invention relates to the technical field of road asphalt materials, in particular to a preparation method of high-strength composite modified emulsified asphalt. Background technique [0002] At present, the commonly used pavement preventive maintenance materials at home and abroad are mainly coatings, coils, chemicals, asphalt-based fibers, modified emulsified asphalt and other types. [0003] Coating materials can be divided into asphalt, polymer-modified asphalt and synthetic polymer according to the main components of the film-forming material, but there are shortcomings such as insufficient bonding strength under high temperature conditions, and weak resistance to construction damage. . [0004] Coil preventive maintenance materials are mainly made of synthetic rubber, synthetic resin or plastic and rubber blended materials, mixed with appropriate amount of chemical additives and fillers such as stabilizers, accelerators, vulcanizing agents a...

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): C08J3/03C08L95/00C08L53/02C08L93/04C08L9/06C08L91/00C08L45/02C08L23/02C08L45/00C08L57/02
CPCC08J3/03C08J2395/00C08J2453/02C08J2493/04C08J2409/06C08J2491/00C08J2445/02C08J2423/02C08J2445/00C08J2457/02
Inventor 耿磊柳宁
Owner HEBEI LUNTE PETROLEUM CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap