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

Modified asphalt, and production process and application thereof

A technology of modified asphalt and production process, which is applied in the direction of building components, building insulation materials, construction, etc.

Inactive Publication Date: 2018-03-20
苏州三创路面工程有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For example, a kind of SBS modified asphalt and its production method disclosed in the Chinese patent whose authorized announcement number is "CN101962482B", etc., in the above production method, the small pieces of SBS are evenly dispersed in the asphalt and fully diffused, but from the microscopic Look, the SBS and the asphalt are not well mixed, and the particles of the two substances are still aggregated together

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
  • Modified asphalt, and production process and application thereof
  • Modified asphalt, and production process and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A modified asphalt production process, such as figure 1 shown, including the following steps:

[0038] Step 1: Prepare the base asphalt and keep stirring.

[0039] Step 2: Soak the SBS and let it stand for 10-50 minutes; cut the SBS into sheets of uniform size and then soak and swell. In this example, star-shaped SBS is used, and the density after swelling is 0.96-1.00g / cm 3 It is considered that the swelling is successful; then oil is poured into the swollen SBS, and the oil temperature is controlled to be 40-50°C, and the oil is naphthenic oil; the control standing time is 10 minutes in this embodiment, and the oil temperature is 40°C. ℃.

[0040] Step 3: Heat the base asphalt prepared in step 1 to 150-180°C, and pour it into the premixing tank. In this embodiment, the heating temperature is controlled to be 150°C.

[0041] Step 4: Pour the SBS and stabilizer processed in step 2 into the premix tank, mix and stir until evenly dispersed. In this embodiment, the st...

Embodiment 2

[0046] A modified asphalt production process, such as figure 1 shown, including the following steps:

[0047] Step 1: Prepare the base asphalt and keep stirring.

[0048] Step 2: Soak the SBS and let it stand for 10-50 minutes; cut the SBS into sheets of uniform size and then soak and swell. In this example, star-shaped SBS is used, and the density after swelling is 0.96-1.00g / cm 3 It is considered that the swelling is successful; then oil is poured into the SBS after it is swollen, and the oil temperature is controlled to be 40-50 ° C, and the oil adopts naphthenic oil; the control standing time is 50 minutes in the present embodiment, and the oil temperature is 50 °C. ℃.

[0049] Step 3: Heat the base asphalt prepared in step 1 to 150-180°C, and pour it into the premixing tank. In this embodiment, the heating temperature is controlled to be 180°C.

[0050] Step 4: Pour the SBS and stabilizer processed in step 2 into the premix tank, mix and stir until evenly dispersed. In...

Embodiment 3

[0055] A modified asphalt production process, such as figure 1 shown, including the following steps:

[0056] Step 1: Prepare the base asphalt and keep stirring.

[0057] Step 2: Soak the SBS and let it stand for 10-50 minutes; cut the SBS into sheets of uniform size and then soak and swell. In this example, star-shaped SBS is used, and the density after swelling is 0.96-1.00g / cm 3 It is considered that the swelling is successful; then oil is poured into the swollen SBS, and the oil temperature is controlled to be 40-50 ° C, and the oil is naphthenic oil; the control standing time is 20 minutes in this embodiment, and the oil temperature is 45 °C. ℃.

[0058] Step 3: Heat the base asphalt prepared in step 1 to 150-180°C and pour it into the premixing tank. In this embodiment, the heating temperature is controlled to be 165°C.

[0059] Step 4: Pour the SBS and stabilizer processed in step 2 into the premix tank, mix and stir until evenly dispersed. In this embodiment, the ...

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
Densityaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to modified asphalt, and a production process and application thereof. The production process comprises the following steps of (1) preparing matrix asphalt for standby use; (2) soaking and standing SBS (Styrene Butadiene Styrene); (3) heating the matrix asphalt prepared in the step (1) to 150 to 180 DEG C, and pouring into a premixing tank; (4) pouring the SBS processed in the step (2) and a stabilizer into the premixing tank, and mixing and stirring to disperse uniformly; (5) repeatedly shearing and grinding the matter mixed uniformly in the step (4), and obtaining submicron particles; (6) placing the matter in the step (5) into a sealed container, stirring and developing for more than 30 hours, and controlling the temperature to be 170 to 200 DEG C. According to thescheme, during preparing and mixing, the SBS and the modified asphalt are subjected to physical mixing and chemical crosslinking, and along with the adding of the stabilizer, the SBS and the asphaltare subjected to crosslinking reaction or grafting reaction or other chemical reactions, so that a networked overall structure is formed, and the modified asphalt obtained after treatment is improvedin property and better in heat storage performance.

Description

technical field [0001] The invention relates to an asphalt, in particular to a modified asphalt and its production process and application. Background technique [0002] Modification of asphalt is the requirement of asphalt pavement for the development of modern road traffic. Modern roads, especially high-grade roads, are characterized by large traffic volume, heavy load and fast speed, which put forward higher and higher quality requirements for asphalt. Ordinary petroleum asphalt is difficult to meet the requirements, so the petroleum asphalt must be modified. Modified asphalt is mainly composed of modifiers and base asphalt. Commonly used modifiers include styrene-butadiene-styrene thermoplastic elastomer (SBS), styrene-butadiene rubber (SBR), polyethylene (PE) and other types Modifier. Because styrene-butadiene-styrene thermoplastic elastomer (SBS) has both rubber and resin road performance and prolongs the service life of the road surface, SBS is a promising modifier....

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): C08L95/00C08L53/02C08K3/06C08J3/24
CPCC08J3/246C08J2395/00C08J2453/02C08L95/00C08L2201/08C08L53/02C08K3/06
Inventor 王少寅高振华李刚仲光昇
Owner 苏州三创路面工程有限公司
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