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Oil-rub-resistant modified asphalt and preparation method thereof

A modified asphalt, anti-oil pollution technology, applied in building components, building thermal insulation materials, buildings, etc., can solve the problems of road damage, affecting the driving quality and driving safety of roads in public areas, gasoline and diesel pollution on asphalt roads, etc. Effects of aging, increasing strength and high temperature resistance to heavy loads, maintaining structural strength and bearing capacity

Active Publication Date: 2019-06-28
上海道淳交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some special road sections, such as large public parking lots, bus lanes, logistics distribution centers, airport aprons, and port roads, which are prone to diesel and gasoline pollution, road surface damage caused by such pollution is very common. It affects the road driving quality and driving safety in these public areas, but the existing SBS modified asphalt technology cannot solve this problem
And for these areas that are prone to gasoline and diesel pollution, they are usually areas where heavy-duty vehicles gather, so the asphalt pavement in these areas is not only extremely vulnerable to the risk of gasoline and diesel pollution, but also needs to improve the high-temperature anti-rutting ability of the asphalt mixture Therefore, it is necessary to develop a special special modified asphalt that resists oil pollution to improve the ability of the road surface to resist gasoline and diesel pollution, and to enhance the anti-heavy load performance of the road surface

Method used

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  • Oil-rub-resistant modified asphalt and preparation method thereof
  • Oil-rub-resistant modified asphalt and preparation method thereof
  • Oil-rub-resistant modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Recipe 1

[0028] Material

content

No. 70 base asphalt

91.70％

Styrene-butadiene-styrene block copolymer (SBS)

2.00％

Ethylene-vinyl acetate copolymer

0.60％

Ethylene-acrylate copolymer

2.00％

Fischer-Tropsch wax

0.70％

Aromatic oil

2.80％

sulfur

0.10％

A silane coupling agent

0.10％

[0029] According to above formula, prepare according to the following method:

[0030] 1) Pour the heated 70# base asphalt into the asphalt tank according to the calculated amount, and then put the asphalt tank in the heating jacket;

[0031] 2) Slowly stir the asphalt to ensure that the temperature of the asphalt is uniform without causing local overheating; after the asphalt is heated to 182-185 degrees, adjust the stirring speed to low speed stirring, and add the SBS and ethylene-vinyl acetate copolymer that need to be added , ethylene-acrylic ester copolymer, Fischer-Tropsch wax, and aromatic oi...

Embodiment 2

[0042] Recipe 2

[0043] Material

content

No. 70 base asphalt

91.10％

Styrene-butadiene-styrene block copolymer (SBS)

3.00％

Ethylene-vinyl acetate copolymer

1.00％

Ethylene-acrylate copolymer

1.00％

Fischer-Tropsch wax

1.50％

Aromatic oil

2.00％

sulfur

0.15％

A silane coupling agent

0.20％

[0044] According to above formula, prepare according to the following method:

[0045] 1) Pour the heated 70# base asphalt into the asphalt tank according to the calculated amount, and then put the asphalt tank in the heating jacket;

[0046]2) Slowly stir the asphalt to ensure that the temperature of the asphalt is uniform without causing local overheating; after the asphalt is heated to 182-185 degrees, adjust the stirring speed to low speed stirring, and add the SBS and ethylene-vinyl acetate copolymer that need to be added , ethylene-acrylic ester copolymer, Fischer-Tropsch wax, and aromatic oil...

Embodiment 3

[0056] Recipe 3

[0057] Material

content

No. 90 base asphalt

90％

Styrene-butadiene-styrene block copolymer (SBS)

3.50％

Ethylene-vinyl acetate copolymer

2.50％

Ethylene-acrylate copolymer

0.50％

Fischer-Tropsch wax

2％

Aromatic oil

1.00％

sulfur

0.18％

A silane coupling agent

0.30％

[0058] According to above formula, prepare according to the following method:

[0059] 1) Pour the heated 70# base asphalt into the asphalt tank according to the calculated amount, and then put the asphalt tank in the heating jacket;

[0060] 2) Slowly stir the asphalt to ensure that the temperature of the asphalt is uniform without causing local overheating; after the asphalt is heated to 182-185 degrees, adjust the stirring speed to low speed stirring, and add the SBS and ethylene-vinyl acetate copolymer that need to be added , ethylene-acrylic ester copolymer, Fischer-Tropsch wax, and aromatic oil are ...

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PUM

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Abstract

The invention discloses an oil-rub-resistant modified asphalt. The asphalt is prepared from, by weight, 85-95% of matrix asphalt, 2-4% of a styrene-butadiene-styrene block copolymer, 0.5-3% of an ethylene-vinyl acetate copolymer, 0.5-2% of an ethylene-acrylate copolymer, 0.5-2% of Fischer-Tropsch wax, 1-3% of aromatic hydrocarbon oil, 0.1-0.2% of sulfur and 0.1-0.3% of a silane coupling agent. Theinvention further discloses a preparation method of the oil-rub-resistant modified asphalt. Compared with the prior art, by means of the oil-rub-resistant modified asphalt, the special asphalt pavement disease oil pollution can be effectively prevented, and meanwhile the anti-heavy load performance of a pavement is enhanced.

Description

technical field [0001] The invention relates to asphalt materials, in particular to an oil-pollution-resistant modified asphalt with excellent oil-pollution-resistance properties and a preparation method thereof. Background technique [0002] At present, the vast majority of asphalt pavements are built by high-temperature mixing and paving of asphalt and stones composed of different grades. However, when diesel oil or gasoline and other similar substances leak onto the asphalt pavement, it will pollute the surface of the road. Asphalt. Since diesel or gasoline is a light component extracted from petroleum, and asphalt used in roads is also a heavy component extracted from petroleum, the two substances have a natural compatibility, and diesel or gasoline will be very Rapidly dilute the asphalt components in the asphalt pavement, causing the loss of cohesion between the asphalt film and the aggregate, and falling off from the aggregate surface. This peeling will develop down...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L23/08C08K3/06C08K5/54
Inventor 侯睿陶卓辉
Owner 上海道淳交通科技有限公司