Heat-resisting waste asphalt regenerant and preparation method thereof

A technology of waste asphalt and regeneration agent, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems that the oil content cannot be stable for a long time in asphalt, the high temperature resistance of recycled asphalt is poor, and the difficulty of on-site regeneration is increased, and the wear resistance can be improved. Performance, improve aging resistance, improve the effect of low temperature resistance

Inactive Publication Date: 2015-10-07
浙江兰亭道路工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the added oil cannot exist stably in the asphalt for a long time, and its improvement on the performance of the asphalt mixture is only a short-term behavior, and the regenerant is a viscous liquid at room temperature, which increases the difficulty of on-site regeneration
[0005] Chinese patent (201210576994.2) discloses an environmentally friendly road asphalt regeneration agent, including regeneration components, plasticizers, waste styrene-butadiene rubber powder, and anti-waste agents, wherein the regeneration components are processed greasy floating objects in the sewer The oil obtained, the oil obtained after processing swill, the oil obtained after processing inferior poultry fat, and the oil in waste oil residue, but the regeneration component has a low flash point and poor aging resistance, and the obtained recycled asphalt has high temperature resistance Difference

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  • Heat-resisting waste asphalt regenerant and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A heat-resistant waste asphalt regeneration agent, in parts by weight, comprises the following components:

[0037] 20 parts of rubber oil, 10 parts of waste styrene-butadiene rubber powder,

[0038] 20 parts of simethicone oil, 2 parts of nano-titanium oxide,

[0039] 1 part of plasticizer, 1 part of anti-aging agent.

[0040] Its preparation method comprises the following steps:

[0041] (1) Add 20 parts of rubber oil and 20 parts of simethicone oil into the stirring tank, heat to 170°C, stir and mix evenly, and set aside;

[0042] (2) Continue to add 10 parts of waste styrene-butadiene rubber powder and 2 parts of nano-titanium oxide to the stirring tank, stir for 25 minutes at 140 °C, and add 1 part of plasticizer and 1 part of anti-aging agent when it is naturally cooled to 60 °C , after continuing to stir for 25 minutes, cool to normal temperature to obtain a viscous liquid mixture, which is the heat-resistant waste asphalt regeneration agent of the present inv...

Embodiment 2

[0044] A heat-resistant waste asphalt regeneration agent, in parts by weight, comprises the following components:

[0045] 50 parts of rubber oil, 20 parts of waste styrene-butadiene rubber powder,

[0046] 30 parts of simethicone oil, 10 parts of nano-titanium oxide,

[0047] 4 parts of plasticizer, 5 parts of anti-aging agent.

[0048] Its preparation method comprises the following steps:

[0049] (1) Add 50 parts of rubber oil and 30 parts of simethicone oil into the stirring tank, heat to 200°C, stir and mix evenly, and set aside;

[0050] (2) Continue to add 20 parts of waste styrene-butadiene rubber powder and 10 parts of nano-titanium oxide into the stirring tank, stir for 60 minutes at 180 ° C, and add 4 parts of plasticizer and 5 parts of anti-aging agent when it is naturally cooled to 80 ° C , after continuing to stir for 60 minutes, cool to normal temperature to obtain a viscous liquid mixture, which is the heat-resistant waste asphalt regeneration agent of the p...

Embodiment 3

[0052] A heat-resistant waste asphalt regeneration agent, in parts by weight, comprises the following components:

[0053] 25 parts of rubber oil, 12 parts of waste styrene-butadiene rubber powder,

[0054] 22 parts of simethicone oil, 4 parts of nano-titanium oxide,

[0055] 1.5 parts of plasticizer, 2 parts of anti-aging agent.

[0056] Its preparation method comprises the following steps:

[0057] (1) Add 25 parts of rubber oil and 22 parts of simethicone oil into the stirring tank, heat to 175°C, stir and mix evenly, and set aside;

[0058] (2) Continue to add 12 parts of waste styrene-butadiene rubber powder and 4 parts of nano-titanium oxide into the stirring tank, stir for 30 minutes at 145°C, and add 1.5 parts of plasticizer and 2 parts of anti-aging agent when it is naturally cooled to 65°C , after continuing to stir for 30 minutes, cool to normal temperature to obtain a viscous liquid mixture which is the heat-resistant waste asphalt regenerant of the present inve...

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Abstract

The invention discloses a heat-resisting waste asphalt regenerant which comprises the following components in parts by weight: 20 to 50 parts of rubber oil, 10 to 20 parts of waste butylbenzene rubber powder, 20 to 30 parts of dimethicone, 2 to 10 parts of nanometer titania, 1 to 4 parts of plasticizer and 1 to 5 parts of anti-aging agent. The invention also discloses a preparation method of the heat-resisting waste asphalt regenerant. The heat-resisting waste asphalt regenerant provided by the invention has the advantages of good heat resistance, good high-temperature stability, obvious regeneration effect, sustained action and low cost; the preparation method is simple and non-toxic, and facilitates environmental protection.

Description

Technical field: [0001] The invention relates to the technical field of asphalt regeneration, in particular to a heat-resistant waste asphalt regeneration agent. Background technique: [0002] Asphalt pavement has been widely used on urban and rural roads, especially high-grade highways, for its excellent performance such as smooth driving, no reflection, low noise, small dust, convenient maintenance, and little impact on traffic. However, with the prolongation of use time, various lesions will occur on the asphalt pavement under various loads, making the asphalt pavement slowly turn brittle, lose elasticity, gradually harden, appear cracks, potholes, until aging, and cracks. [0003] The existing pavement maintenance technologies are mainly repairing and refurbishment and pavement regeneration and maintenance. The repairing and refurbishment means re-paving with new modified asphalt. It also causes a large amount of asphalt materials to be wasted in vain; pavement regenera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L9/06C08L83/04C08K13/02C08K3/22C08K5/1515C08K5/18C08K5/13
Inventor 杨林江
Owner 浙江兰亭道路工程技术有限公司
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