Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high rubber asphalt and preparation method thereof

A technology of high rubber asphalt and asphalt, which is applied in the field of high rubber asphalt and its preparation, can solve the problems of high cost and unstable index, and achieve the effects of excellent thermal storage stability, easy control, and high viscosity and toughness

Active Publication Date: 2019-06-28
江苏宝利路面材料技术有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a high-glue asphalt material with excellent high and low temperature performance based on "ultrafine particle filling and grafting technology" to overcome the defects of high cost and index instability of conventional high-viscosity modified asphalt

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 kind of high rubber asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: In terms of mass fraction, add 6% of SBS411 (LG) to 94 parts of 70# heavy traffic asphalt, and use a colloid mill to shear at 170-190°C.

[0034] Step 2: Transfer the sheared modified asphalt to a high-speed disperser and stir for 150 minutes. The stirring speed is 800-900r / min. During the process, add a total of 0.15 parts of sulfur to prepare modified asphalt. The prepared modified asphalt is numbered 1, and its properties are shown in Table 1.

Embodiment 2

[0036] Step 1: In parts by mass, 50 parts of desulfurized colloidal particles and 50 parts of SBS are uniformly mixed.

[0037] Step 2: In parts by mass, 12 parts of the mixture are added to 88 parts of 70# asphalt, and sheared with a colloid mill at 170-190°C.

[0038] Step 3: Transfer the sheared modified asphalt to a high-speed disperser and stir for 120 minutes to develop at a stirring speed of 800-900r / min to prepare high-bonding asphalt. The prepared modified asphalt is numbered 2, and its properties are shown in Table 1.

Embodiment 3

[0040] Step 1: In terms of parts by mass, 50 parts of desulfurized rubber particles and 50 parts of SBS are mixed in a disc grinder for solid-phase mechanochemical reaction to prepare SBS / desulfurized rubber particle modified composites. The reaction temperature is normal temperature. The rotating speed is 900r / min, and the time is 20 seconds.

[0041] Step 2: In parts by mass, 12 parts of the mixture are added to 88 parts of 70# asphalt, and sheared with a colloid mill at 170-190°C.

[0042] Step 3: Transfer the sheared modified asphalt to a high-speed disperser and stir for 120 minutes to develop at a stirring speed of 800-900r / min to prepare high-bonding asphalt. The prepared modified asphalt is numbered 3, and its properties are shown in Table 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

PropertyMeasurementUnit
sizeaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to high-rubber asphalt and a preparation method thereof. The high-rubber asphalt comprises components in percentage by weight as follows: 84%-90% of heavy traffic paving asphalt and 10%-16% of a modified compound, wherein the modified compound is a mixture obtained by mixing desulfurized rubber particles and SBS (styrene butadiene styrene) through a solid state mechanochemical reaction, wherein the ratio of the desulfurized rubber particles to SBS in percentage by weight is (90 / 10)-(50 / 50). The preparation method is implemented as follows: firstly, modified composite particles are prepared from the desulfurized rubber particles and SBS through solid state mechanochemical mixing, the modified particles are added to asphalt at the temperature of 170-190 DEG C, sheared highly at a high speed on a colloid mill and stirred at a high-speed dispersion machine, and a high-rubber asphalt material is obtained. The prepared high-rubber asphalt has the characteristics of high adhesive force, stable heat storage and excellent high-temperature and low-temperature performance; good economic benefits and environmental protection benefits are generated with the use of waste rubber, sulfuration for stabilization is not required, the construction environment is improved and the problem that incompatible asphalt is difficult to stabilize is solved.

Description

technical field [0001] The invention relates to the field of asphalt material improvement, in particular to a high-glue asphalt and a preparation method thereof. Background technique [0002] As a cementing material, asphalt has the advantages of waterproof, insulation, corrosion resistance, etc., and has a good bonding effect with stone ore materials. It has been widely used as road construction materials for a long time. In recent years, with the increase of traffic volume and traffic load, people have put forward more stringent requirements for road paving asphalt materials, but ordinary modified asphalt can no longer fully meet the actual needs, and it is necessary to prepare asphalt materials with high cohesion. [0003] Add high content of polymer to asphalt to prepare high-viscosity modified asphalt, which has better bonding performance and can effectively improve the high and low temperature performance of asphalt. Therefore, people have been devoting themselves to ...

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): C08L95/00C08L53/02C08L21/00
CPCC08L21/00C08L53/02C08L95/00C08L2205/03
Inventor 徐思田周建明周子炜王仕峰朱亚琴陶红
Owner 江苏宝利路面材料技术有限公司