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A kind of high-viscosity rubber asphalt and its preparation method and application

A rubber asphalt, high-viscosity technology, applied in building components, building insulation materials, construction, etc., can solve the problems of asphalt dynamic viscosity index storage stability, etc., and achieve good high-temperature storage stability, strong workability, and enhanced binding effect

Active Publication Date: 2022-03-04
中路交建(北京)工程材料技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned prior art has optimized the performance of rubber asphalt, due to the fact that the current pavement has higher and higher requirements on the performance of asphalt, especially the anti-skid and noise reduction large-pore pavement, the dynamic viscosity index and storage capacity of asphalt are very high. Stability requirements are strict, so how to use waste rubber to produce high value-added asphalt still needs further research

Method used

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  • A kind of high-viscosity rubber asphalt and its preparation method and application

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Embodiment 1

[0032] The present embodiment provides a kind of high-viscosity rubber asphalt, in parts by weight, consists of 71 parts of 70# base asphalt, 25 parts of low Mooney viscosity rubber, 1 part of catalyst anhydrous ferric chloride, 1.5 parts of activator alkylphenol disulfide 1.5 parts and 1.5 parts of compatibilizer aluminate coupling agent.

[0033] This embodiment also provides a preparation method for the above-mentioned high-viscosity rubber asphalt, and the specific steps are as follows:

[0034] Get the low Mooney viscosity rubber, alkylphenol disulfide and 70# matrix asphalt and put them into the reaction kettle together, the stirring speed is 800 rpm, and stir for 15 minutes;

[0035] Raise the temperature to 175°C, use a shearing machine or a colloid mill to shear at high speed for 10 minutes, and the shearing speed is 2500 rpm;

[0036] Add anhydrous ferric chloride and aluminate coupling agent, and stir for 5 minutes.

Embodiment 2

[0038] The present embodiment provides a kind of high-viscosity rubber asphalt, in parts by weight, consists of 65 parts of 70# base asphalt, 30 parts of low Mooney viscosity rubber, 1.2 parts of catalyst anhydrous ferric chloride, activator alkylphenol disulfide 2 1.8 parts and 1.8 parts of compatibilizer aluminate coupling agent.

[0039] This embodiment also provides a preparation method for the above-mentioned high-viscosity rubber asphalt, and the specific steps are as follows:

[0040] Get the low Mooney viscosity rubber, alkylphenol disulfide and 70# matrix asphalt and put them into the reaction kettle together, the stirring speed is 800 rpm, and stir for 15 minutes;

[0041] Raise the temperature to 175°C, use a shearing machine or a colloid mill to shear at high speed for 10 minutes, and the shearing speed is 2500 rpm;

[0042] Add anhydrous ferric chloride and aluminate coupling agent, and stir for 5 minutes.

Embodiment 3

[0044] The present embodiment provides a kind of high-viscosity rubber asphalt, in parts by weight, consists of 68 parts of 70# base asphalt, 28 parts of low Mooney viscosity rubber, 1 part of catalyst anhydrous ferric chloride, 1.5 parts of activator alkylphenol disulfide 1.5 parts and 1.5 parts of compatibilizer aluminate coupling agent.

[0045] This embodiment also provides a preparation method for the above-mentioned high-viscosity rubber asphalt, and the specific steps are as follows:

[0046] Get the low Mooney viscosity rubber, alkylphenol disulfide and 70# matrix asphalt and put them into the reaction kettle together, the stirring speed is 800 rpm, and stir for 15 minutes;

[0047] Raise the temperature to 175°C, use a shearing machine or a colloid mill to shear at high speed for 10 minutes, and the shearing speed is 2500 rpm;

[0048] Add anhydrous ferric chloride and aluminate coupling agent, and stir for 5 minutes.

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Abstract

The invention provides a high-viscosity rubber asphalt and its preparation method and application. The high-viscosity rubber asphalt includes base asphalt, low Mooney viscosity rubber, catalyst, activator and compatibilizer. The degree is 60~120 mesh, and the Mooney viscosity value is 35~55 ML(1+4)100℃. In the present invention, rubber asphalt with high viscosity and high temperature storage stability is obtained by adding low Mooney viscosity rubber into the asphalt base and matching specific catalysts, activators and compatibilizers, which can be applied to anti-slip and noise-reducing road surfaces building.

Description

technical field [0001] The invention relates to the technical field of road engineering materials, in particular to a high-viscosity rubber asphalt and its preparation method and application. Background technique [0002] With the rapid development of the automobile industry, a large number of tires are landfilled, resulting in waste of resources and environmental pollution. In order to protect the safety of the environment on which human beings depend, scholars at home and abroad have begun to study the use of rubber tires in asphalt pavement materials, and certain progress has been made in technology. [0003] Patent CN201611201908.4 discloses a rubber asphalt, including 100 parts of base asphalt, 25-35 parts of rubber powder, 5-10 parts of moss ash, 1-2 parts of calcium carbonate, 3-5 parts of polyaryleacetylene resin, naphthene 1~3 parts of oil, 0.5~1.5 parts of polyester fiber; the rubber asphalt made by the above parts by weight has excellent reinforcing effect, and g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L19/00C08K5/375C08K3/16
CPCC08L95/00C08K2003/164C08K2003/168C08L19/003C08K5/375C08K3/16
Inventor 黄浩波李刚丁润铎朱继双黄自文赵立东刘东杰张艳君孟宪东贾晓鹏吴文强
Owner 中路交建(北京)工程材料技术有限公司