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Novel composite rubber modified asphalt and preparation method thereof

A technology of compound modified asphalt and rubber, used in building components, building insulation materials, buildings, etc., can solve the problems of high construction viscosity, poor high temperature resistance, low utilization rate, etc., to solve the problems of utilization rate, uniform reaction state, The effect of prolonging the service life

Inactive Publication Date: 2017-11-21
吉林省嘉瑞沥青科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low utilization rate of existing waste tire rubber powder, poor high temperature resistance of existing rubber asphalt, and high construction viscosity due to increased dosage, the present invention provides a new type of rubber compound modified asphalt and its preparation method

Method used

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  • Novel composite rubber modified asphalt and preparation method thereof
  • Novel composite rubber modified asphalt and preparation method thereof
  • Novel composite rubber modified asphalt and preparation method thereof

Examples

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preparation example Construction

[0043] A kind of preparation method of novel rubber composite modified asphalt of the present invention, comprises the following steps:

[0044] Step 1. Mix the tire top rubber powder, tire sidewall rubber powder, and beak rubber powder evenly to form rubber powder particles, and then use a spraying device to spray white oil, TMTD accelerator, and activator on the surface of the rubber powder particles in sequence. The treated rubber powder particles are swollen due to early oil absorption, and can be quickly integrated into the asphalt to form a dispersion system when producing and processing rubber compound modified asphalt, which solves the problem of difficult dissolution of the rubber powder due to the rubber powder. Additives (white oil, TMTD accelerator, activator) are evenly wrapped on the surface of the particles, so that the reaction state is more uniform and the quality is more stable, and because the materials are matched in proportion, a stable collection and distr...

Embodiment 1

[0050] A kind of novel rubber composite modified asphalt of the present embodiment, its composition and parts by weight are as follows:

[0051]

[0052]

[0053] Prepare the rubber composite modified asphalt of above-mentioned composition and weight part according to the following methods:

[0054] Step 1. Mix the tire top rubber powder, tire sidewall rubber powder, and beak rubber powder evenly to form rubber powder particles, and then use a spraying device to spray white oil, TMTD accelerator, and activator on the surface of the rubber powder particles in sequence.

[0055]Step 2: Preheat the petroleum asphalt to 180°C, and then mix it evenly with the product obtained in Step 1.

[0056] Step 3: Putting SBS and waste recycled plastic particles into the product obtained in Step 2 in sequence, adding a stabilizer and an anti-aging agent under continuous stirring to obtain a blend.

[0057] Step 4: Send the above-mentioned blend into a colloid mill for one-time grinding...

Embodiment 2

[0060] A kind of novel rubber composite modified asphalt of the present embodiment, its composition and parts by weight are as follows:

[0061]

[0062] Prepare the rubber composite modified asphalt of above-mentioned composition and weight part according to the following methods:

[0063] Step 1. Mix the tire top rubber powder, tire sidewall rubber powder, and beak rubber powder evenly to form rubber powder particles, and then use a spraying device to spray white oil, TMTD accelerator, and activator on the surface of the rubber powder particles in sequence.

[0064] Step 2: Preheat the petroleum asphalt to 190°C, and then mix it with the product obtained in Step 1 evenly.

[0065] Step 3: Putting SBS and waste recycled plastic particles into the product obtained in Step 2 in sequence, adding a stabilizer and an anti-aging agent under continuous stirring to obtain a blend.

[0066] Step 4: Send the above-mentioned blend into a colloid mill for one-time grinding, and then ...

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Abstract

The invention discloses novel composite rubber modified asphalt and a preparation method thereof, relating to the field of road paving materials. The problems that the conventional waste tire rubber powder has low utilization rate, the conventional rubber asphalt is poor in high temperature resistance and the applicable viscosity is high due to increase of the doping amount are solved. The novel composite rubber modified asphalt disclosed by the invention comprises the following components in parts by weight: 65-75 parts of petroleum asphalt, 4-6 parts of waste recycled plastic particles, 1-3 parts of SBS (Styrene Butadiene Styrene), 60-75 parts of tire crown rubber powder, 15-30 parts of tire side wall rubber powder, 10-15 parts of tire bead rubber powder, 1.5 parts of white oil, 0.5 part of a TMTD accelerant, 1 part of an activator, 0.2-0.4 part of a stabilizer and 0.1-0.2 part of an anti-aging agent, wherein the granularity of the tire crown rubber powder is 25-40 meshes, the granularity of the tire side wall rubber powder is 30-40 meshes, and the granularity of the tire bead rubber powder is 40-60 meshes. The composite rubber modified asphalt disclosed by the invention is excellent in high temperature resistance, low in applicable viscosity and long in service life, and the utilization rate of waste tire rubber powder is increased.

Description

technical field [0001] The invention relates to the technical field of road paving materials, in particular to a novel rubber composite modified asphalt and a preparation method thereof. Background technique [0002] Rubber asphalt has been widely used in the road industry. While improving road performance and prolonging road life, the emergence of rubber-modified asphalt also reduces and eliminates the "black pollution" of waste tires. However, the existing rubber asphalt materials The choice of rubber tires is still limited. The rubber tires have different rubber components on the top and sidewalls. Therefore, in order to pursue quality and indicators, most companies will propose the concept of tire top rubber when selecting materials, and more will abandon the tire mouth. glue. In the process of making tires, due to the different functions of each part of the tire, the content of natural rubber in each part is also different. For example, the top of the tire plays the r...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L23/06C08L53/02C08L21/00C08L91/06C08K5/00C08K5/40
CPCC08L95/00C08L2201/08C08L2205/025C08L2205/035C08L2207/20C08L23/06C08L53/02C08L21/00C08L91/06C08K5/005C08K5/40
Inventor 林雨冬
Owner 吉林省嘉瑞沥青科技有限公司
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