Environment-friendly rubber asphalt and preparation method thereof

An environmentally friendly rubber and asphalt technology, which is applied to building insulation materials, building components, buildings, etc., can solve the problems of complex process, strict requirements, and high cost of rubber asphalt, and achieve the effects of reducing environmental pollution, improving high temperature performance, and reducing production costs

Inactive Publication Date: 2018-04-17
FOSHAN GAOMING DISTRICT MINGCHENG TOWN NEW ENERGYNEW MATERIAL IND TECH INNOVATION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, although the superiority of rubber asphalt is very prominent, due to the complicated activation of waste rubber powder and the large amount of asphalt, rubber asphalt has problems such as high cost, complicated process, and strict requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The environment-friendly rubber modifier provided by the present embodiment comprises components by mass percentage: 73% of base asphalt, waste tire rubber powder and modifier 27% (wherein 20 mesh waste tire rubber powder 92%, 2% activator, 2% binder, 2% activator, 1% vulcanizing agent, 1% antioxidant), heat the base asphalt, the heating temperature is 185 °C, after the base asphalt is melted, waste rubber powder and modifier Mix evenly, pour it into the base asphalt, and manually stir for 10 minutes to mix the waste rubber powder and modifier into the base asphalt, use a high-speed shearer, stir at a speed of 1200 rpm for 12 minutes, and then use a 3500 rpm Stir at a speed of 12 minutes, and finally adjust to a speed of 5500 rpm and stir for 25 minutes, and carry out 60 minutes of stability development treatment to obtain environmentally friendly rubber asphalt.

[0033] Among them, the base asphalt is 70# base asphalt, which is better produced in China.

[0034] Wast...

Embodiment 2

[0041] The environment-friendly rubber modifier provided by the present embodiment comprises components by mass percentage: base asphalt 75%, waste tire rubber powder and modifier 25% (wherein 40 mesh waste tire rubber powder 88%, 3% activator, 3% binder, 3% active agent, 2% vulcanizing agent, 1% antioxidant), heat the base asphalt, the heating temperature is 180°C, after the base asphalt is melted, the waste rubber powder and modifier Mix evenly, pour it into the base asphalt, and manually stir for 10 minutes to mix the waste rubber powder and modifier into the base asphalt, use a high-speed shearer, stir at a speed of 1000 rpm for 15 minutes, and then use a 3000 rpm Stir at a speed of 15 minutes, and finally adjust to a speed of 5000 rpm and stir for 30 minutes, and carry out 80 minutes of stability development treatment to obtain environmentally friendly rubber asphalt.

[0042] Among them, the base asphalt is 90# base asphalt, which is better produced in China.

[0043] W...

Embodiment 3

[0050] The environment-friendly rubber modifier provided by the present embodiment comprises components by mass percentage: base asphalt 78%, waste tire rubber powder and modifier 22% (wherein 40 mesh waste tire rubber powder 82%, 4% activator, 5% binder, 4% activator, 3% vulcanizing agent, 2% antioxidant), heat the base asphalt, the heating temperature is 175 °C, after the base asphalt is melted, waste rubber powder and modifier Mix evenly, pour it into the base asphalt, and manually stir for 10 minutes to mix the waste rubber powder and modifier into the base asphalt, use a high-speed shearer, stir at a speed of 800 rpm for 18 minutes, and then use a 2500 rpm Stir at a speed of 18 minutes, and finally adjust to a speed of 4500 rpm and stir for 35 minutes, and carry out 90 minutes of stability development treatment to obtain a new type of environmentally friendly rubber asphalt.

[0051] Among them, the base asphalt is 50# base asphalt, which is better produced in China.

[...

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PUM

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Abstract

The invention discloses an environment-friendly rubber asphalt, which comprises matrix asphalt, waste tire rubber powder and a modifier, the mass percentage of the matrix asphalt is 73-77%, and the mass percentage of the waste tire rubber powder and modifier The percentage content is 23 ~ 27%; wherein said waste tire rubber powder and modifier are mainly made of the following raw materials in mass percentage content: waste tire rubber powder 82 ~ 92%, activator 2 ~ 4%, bonding Agent 2~5%, Active Agent 2~4%, Vulcanizing Agent 1~3%, Antioxidant 1~2%. The environmentally friendly rubber asphalt can not only recycle waste materials such as waste rubber powder and waste engine oil, but also improve the use performance of the asphalt. Also disclosed is a preparation method of the above-mentioned environment-friendly rubber asphalt, which has the advantages of simple activation of waste rubber powder, low cost and simple process.

Description

technical field [0001] The invention belongs to the technical field of asphalt, and in particular relates to an environment-friendly rubber asphalt and a preparation method thereof. Background technique [0002] Asphalt is a temperature-sensitive material. In summer, the strength of asphalt mixture will decrease with the increase of temperature, which will soften the road surface. In winter, asphalt mixture will easily produce shrinkage cracks, which will cause cracks in the road surface. Therefore, it is necessary to Modification of asphalt to improve its performance at high and low temperatures. Modifiers for asphalt are mainly thermoplastic elastomeric polymers, such as polyisoprene, random or block copolymers of styrene and conjugated diene, and butyl rubber, etc., through modification, the asphalt has Excellent mechanical properties and dynamic properties, especially very good viscoelasticity, but due to the high price and large amount of modifiers, the cost of modifie...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L19/00C08L91/00C08L23/06C08K3/22C08K5/357C08K5/09C08K3/06
CPCC08L95/00C08K2003/2296C08L2201/08C08L2205/02C08L2205/035C08L2207/24C08L19/003C08L91/00C08L23/06C08K3/22C08K5/357C08K5/09C08K3/06
Inventor 黄莉
Owner FOSHAN GAOMING DISTRICT MINGCHENG TOWN NEW ENERGYNEW MATERIAL IND TECH INNOVATION CENT
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