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Asphalt regenerating agent for recycling waste asphalt, and preparation method and application thereof

A technology of asphalt rejuvenating agent and waste asphalt, applied in building components, building insulation materials, buildings, etc., can solve the problems of poor anti-aging performance and low flash point, and achieve the effects of low temperature performance improvement, performance recovery, and reasonable matching.

Active Publication Date: 2013-09-04
HUNAN YUNZHONG REGENERATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art such as low flash point and poor anti-aging performance, and provide a kind of product with excellent comprehensive performance, which can restore the performance of aged asphalt, and can make the regenerated asphalt meet the performance index requirements. The asphalt rejuvenator also provides a preparation method and application of an asphalt rejuvenator with simple steps, convenient operation and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of asphalt regeneration agent used for recycling waste asphalt, comprising the following components in mass fraction:

[0031] Petroleum-based naphthenic rubber oil 90%,

[0032] Asphalt modifier TPS 3%,

[0033] Terpene resin 2%,

[0034] Plasticizer 3% and

[0035] Anti-flaking agent 2%.

[0036] The raw materials of the above formulas are all industrial grades, and the asphalt modifier TPS is a high-viscosity asphalt modified additive (commercially available) produced by Japan Dayou Construction Co., Ltd.; the terpene resin of this embodiment is made of turpentine. Pinene (or pinpinene) is a linear polymer obtained by polymerization; the anti-stripping agent in this example is an asphalt adhesion enhancer "AD-here LOF6500" produced by Yamei Company of the United States.

[0037] The preparation method of the above-mentioned bitumen regenerant of the present embodiment specifically comprises the following steps:

[0038] (1) Preheat the petroleum-based nap...

Embodiment 2

[0042] A kind of asphalt regeneration agent used for recycling waste asphalt, comprising the following components in mass fraction:

[0043] Petroleum-based naphthenic rubber oil 80%,

[0044] Asphalt modifier TPS 5%,

[0045] Terpene resin 5%,

[0046] Plasticizer 5%, and

[0047] Anti-flaking agent 5%.

[0048] The raw materials of the above formulas are all industrial grades, and the asphalt modifier TPS is a high-viscosity asphalt modified additive produced by Japan Dayou Construction Co., Ltd.; the terpene resin in this embodiment is made of pinene (or pine Pinene) is a linear polymer obtained by polymerization; the plasticizer of this embodiment is dioctyl phthalate, and the anti-stripping agent of this embodiment is the asphalt adhesion enhancer "AD" produced by American Yami Company. -here LOF6500".

[0049] The preparation method of the above-mentioned bitumen regenerant of the present embodiment specifically comprises the following steps:

[0050](1) Preheat th...

Embodiment 3

[0054] A kind of asphalt regeneration agent used for recycling waste asphalt, comprising the following components in mass fraction:

[0055] Petroleum-based naphthenic rubber oil 70%,

[0056] Asphalt modifier TPS 10%,

[0057] Terpene resin 10%,

[0058] Plasticizer 5%, and

[0059] Anti-flaking agent 5%.

[0060] Above each formula raw material is industrial grade, and asphalt modifier TPS is the high-viscosity asphalt modified additive produced by Japan Dayou Construction Co., Ltd.; The linear polymer obtained by polymerization of olefin; the plasticizer of this embodiment is dioctyl phthalate, and the anti-peeling agent of this embodiment is the asphalt adhesion enhancer "AD-here" produced by Yamei Company of the United States. LOF6500".

[0061] The preparation method of the above-mentioned bitumen regenerant of the present embodiment specifically comprises the following steps:

[0062] (1) Preheat the petroleum-based naphthenic rubber oil in the above ratio to 160°...

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Abstract

The invention discloses an asphalt regenerating agent for recycling waste asphalt. The asphalt regenerating agent comprises 70-90mass% of rubber oil, 2-10mass% of an asphalt modifier TPS, 2-10mass% of a terpene resin, 2-5mass% of a plasticizer and 2-5mass% of an anti-stripping agent. A preparation method of the asphalt regenerating agent comprises the following steps: preheating the rubber oil to 140-160DEG C; sequentially adding the asphalt modifier TPS and the terpene resin to a stirring kettle, and carrying out stirring dispersion at a constant temperature; and sequentially adding the plasticizer and the anti-stripping agent to the stirring kettle, uniformly mixing, cooling to room temperature, and carrying out sealed preservation of the prepared asphalt regenerating agent. The asphalt regenerating agent can be added to aged modified asphalt to controllably adjust the performances and the effects of regenerated asphalt through adjusting the proportion of the asphalt regenerating agent. The asphalt regenerating agent is excellent, has a simple process operation, can recover the performances of the aged asphalt, and allows the regenerated asphalt to reach performance index requirements.

Description

technical field [0001] The invention relates to an asphalt additive and its preparation method and application, in particular to a waste asphalt regeneration agent and its preparation method and application, belonging to the field of road traffic construction materials. Background technique [0002] Under the natural action of sunlight, rain, oxidation, etc., asphalt will undergo a series of volatilization, oxidation, and polymerization reactions, resulting in essential changes in the internal structure and performance of asphalt. This similar asphalt aging process makes the road surface dry, brittle, Then there are cracks, looseness and other diseases, resulting in deterioration of road performance. The aging of asphalt is mainly manifested in the change of its components, the oil content is greatly reduced, the asphaltene is increased, the colloidal structure is changed, the viscosity of the asphalt is increased, the rheological index is reduced, and the performance of the...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L91/00C08L45/00C08K5/12C08K5/17
Inventor 李伯平董维君
Owner HUNAN YUNZHONG REGENERATION TECH CO LTD
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