Anti-rut asphalt modifier and preparation method thereof and modified asphalt and application thereof

An asphalt modifier and modified asphalt technology, applied in the field of asphalt modifiers, can solve problems such as not fully meeting road requirements, intensified rutting, and segregation, so as to avoid poor storage stability, reduce energy consumption and loss, and facilitate construction The effect of simple process

Inactive Publication Date: 2010-10-13
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD +3
View PDF1 Cites 54 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0049] In addition, there are modification methods such as polymers, fibers, and rubber powders; the limitations of traditional technologies: the addition amount is limited to 4-5%, which cannot fully meet the road use requirements; in addition, technical problems require cumbersome swelling, colloid, etc. Grinding for high-speed shear processing, segregation and other problems during storage
Some roads were severely damaged 1-2 years after they were built and used. Some road sections were damaged in a large area in the year they were opened to traffic, far short of the design life.
Second, the damage range

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
  • Anti-rut asphalt modifier and preparation method thereof and modified asphalt and application thereof
  • Anti-rut asphalt modifier and preparation method thereof and modified asphalt and application thereof
  • Anti-rut asphalt modifier and preparation method thereof and modified asphalt and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] Weigh 50 parts of SBS; 50 parts of SIS; 50 parts of SEBS; 50 parts of SEPS; 5 parts of PE; 10 parts of rubber (or reclaimed rubber) with a fineness of 25 mesh. First heat the thermoelastic body to 40°C; under the condition of 20r / min, add polyolefin and rubber powder to the thermoplastic elastomer and mix uniformly; then the mixture is heated to 80°C within 10min, and then heated to within 15min At 150°C, the temperature is raised to 200°C within 5 minutes; the mixture is cooled, extruded to form a finished product, and it is packed into barrels for later use.

Embodiment 2

[0111] Weigh 20 parts of SBS; 200 parts of PE; 100 parts of APP; 100 parts of LDPE; 20 parts of EVA; 250 parts of rubber (or recycled rubber parts) with a fineness of 80 mesh. The preparation process and conditions are the same as in Example 1.

Embodiment 3

[0113] Weigh SIS, 30 parts by weight; SEBS, 80 parts; SEPS, 10 parts; PE, 50 parts; HDPE, 100 parts; PP, 250 parts; PE, 150 parts; LDPE, 100 parts, rubber parts (or reclaimed rubber Parts) 200 parts, the fineness is 45 mesh. The preparation process and conditions are the same as in Example 1.

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 discloses a traffic anti-rut asphalt modifier and a preparation method thereof; the asphalt modifier is prepared from the following components in parts by weight: 20 to 200 parts of thermoplastic elastomer, 5 to 450 parts of polyolefin, and 5 to 400 parts of rubber powder. Simultaneously, the invention also discloses modified asphalt which contains the asphalt modifier and application of the modified asphalt in asphalt mixture. The invention can significantly improve the high-temperature performance and the anti-rut capability of the asphalt mixture, improves anti-water damage and anti-low temperature cracking and other performance, and has high cost performance. Compared with asphalt modification, the invention does not need to add asphalt modification equipment, can significantly reduce energy consumption and loss in the production process, can realize long-termed inventory, prevents the problem of the poor storage stability of modified asphalt, does not affect the mixing proportion design, does not change the gradation of the asphalt mixture under any content, only finely adjusts the asphalt-aggregate ratio, has simple construction process, and realizes random adding through a direct feeding method.

Description

Technical field [0001] The invention relates to an asphalt modifier for anti-rutting traffic, and also relates to a preparation method of the asphalt modifier. [0002] At the same time, it also relates to the modified asphalt containing the above-mentioned asphalt modifier and the application of the modified asphalt in the asphalt mixture. Background technique [0003] The current modified asphalt methods to improve the high temperature performance and rutting resistance of asphalt include: [0004] (1) Direct miscibility method [0005] Due to the difference in polymer molecular weight and chemical structure, the solubility rate of asphalt is very different. For modifiers such as SBS and PE, it is not suitable to use spiral blades to produce modified asphalt. For EVA, APP, APAO, it is easy to be dissolved by asphalt. For the polymer, from an economic point of view, the method of mixing with spiral blades should be used to produce modified asphalt. [0006] For polymers that are not ...

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): C04B24/26C04B26/26C08L95/00C08L53/00C08L23/00C08L21/00
Inventor 何唯平赵欣平李伟新
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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