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Waste road asphalt recycling agent

A technology of road asphalt and regeneration agent, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problem of high cost and achieve the effect of reducing the cost of raw materials

Inactive Publication Date: 2013-06-26
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of waste and old road asphalt regeneration agent, to solve the problem of the high cost of existing waste and old road asphalt regeneration agent

Method used

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preparation example Construction

[0022] The preparation method step of asphalt regenerant of the present invention can be:

[0023] (1) Mix waste rubber powder, plasticizer, and aromatic light oil, add peptizer after fully swelling at room temperature, and mix;

[0024] (2) Microwave the mixed solution obtained in step (1) at a power of 360-900w, preferably under anaerobic conditions. Thermal and non-pyrogenic action undergoes considerable softening and degradation to form a viscous, homogeneous black liquid;

[0025] (3) After microwave treatment, add petroleum resin at 70-90°C and mix well to obtain the waste asphalt regeneration agent of the present invention;

[0026] The consumption of each raw material component in the method is: based on the total mass of waste rubber powder, plasticizer and aromatic light oil, the mass percentage of waste rubber powder, plasticizer, aromatic light oil is: waste rubber powder : 20% to 25%, plasticizer: 10% to 20%, aromatic light oil: 60% to 75%, and the mass percenta...

Embodiment 1

[0031] Following the technical scheme of the present invention, the preparation raw material consumption of the waste asphalt regeneration agent of this embodiment is:

[0032] The mass percentages of waste rubber powder, dibutyl phthalate, and furfural oil are: 20% of waste rubber powder, 15% of dibutyl phthalate, and 65% of furfural oil;

[0033] The added quality of peptizer pentachlorothiophenol is 0.1% of the waste rubber powder quality;

[0034] The added quality of petroleum resin is 12% of the total mass of waste rubber powder, plasticizer, aromatic light oil and peptizer.

[0035] The specific preparation method is:

[0036] (1) Fully mix waste rubber powder with dibutyl phthalate and furfural oil, and swell at room temperature for 30 minutes;

[0037] (2) Add peptizer to the swollen solid-liquid mixture, and stir well;

[0038] (3) Put the mixed solution into a triangular flask, plug it with a glass stopper with a small hole, put it into a microwave processor, sel...

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Abstract

The invention discloses a waste road asphalt recycling agent. The waste road asphalt recycling agent is prepared by mixing waste rubber powder, a plasticizer, an aromatic light oil component and a peptizer, performing microwave treatment, then adding petroleum resin and uniformly mixing. When the waste road asphalt recycling agent is used for recycling of waste road asphalt, the adding weight is 8%-10% of the weight of the waste road asphalt. The waste road asphalt recycling agent disclosed by the invention is formed by selecting waste rubber with low price as a raw material and developing through an appropriate treatment process, so that the cost of the raw material is reduced. Furthermore, the recycled asphalt prepared by utilizing the recycling agent disclosed by the invention has better secondary anti-aging performance.

Description

technical field [0001] The invention relates to a waste and old road asphalt regeneration agent, in particular to a waste and old road asphalt regeneration agent prepared by using waste rubber as a main raw material through microwave degradation treatment technology. Background technique [0002] Due to the aging effect of traffic load and natural factors, after a certain number of years of use, various diseases will appear on the asphalt pavement and gradually expand until it cannot be opened to traffic normally. According to the design life of the asphalt pavement and the actual use conditions, the asphalt concrete pavement needs to be renovated once every 10-15 years, that is, the old pavement is removed and a new asphalt pavement is paved again. According to rough calculations, China discards more than 2 million tons of road asphalt mixture every year, including more than 100,000 tons of asphalt. It can be predicted that with the increase of road mileage, the waste mixtu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L57/02C08L21/00C08K5/11C08J11/28
CPCY02W30/62
Inventor 栗培龙丁湛张争奇
Owner CHANGAN UNIV