High-quality pavement petroleum asphalt material and preparation method thereof

A kind of road petroleum asphalt, high-quality technology, used in building insulation materials, building components, construction and other directions, can solve the problem of high-grade road construction that cannot meet heavy load, large traffic volume, lack of high-quality road petroleum asphalt production technology, and high asphaltene content. Advanced problems, to achieve excellent technical performance and road performance, improve the use value, improve the effect of low temperature performance

Active Publication Date: 2010-01-20
XIAN ZHONGLI ASPHALT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production technology of high-quality road petroleum asphalt is lacking, and the output is small, which cannot meet the needs of road construction
[0003] Because the crude oil resources suitable for producing high-quality road asphalt are very limited, and it is difficult to achieve separate mining, separate transportation and separate refining in the mining process, the technical performance of asphalt produced by most refineries does not meet the road industry JTG F40-2004 "Road Asphalt Pavement construction t

Method used

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  • High-quality pavement petroleum asphalt material and preparation method thereof
  • High-quality pavement petroleum asphalt material and preparation method thereof
  • High-quality pavement petroleum asphalt material and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0028] Example 1:

[0029] The preparation method of the high-quality road petroleum asphalt material of the present invention is as follows:

[0030] 1). Under the condition of 120-200℃, heat 89 parts by mass of the main mixed asphalt to a molten state, pump into the batching tank, add 1 part by mass of the polymer crosslinking agent at 135℃-140℃, and stir for 30min , After mixing uniformly, perform three-level high-speed shearing through the shearing machine;

[0031] 2), pump into the blending tank, add 10 parts by mass of the blended asphalt and mix evenly;

[0032] 3). Add 0.1 part of mass heat stabilizer, stir for 30min, and further grind it by colloid mill after uniformity to obtain high-quality road petroleum asphalt.

[0033] The main bitumen used refers to the vacuum residue of the residual oil and heavy crude oil after deep drawing under vacuum. The content of its four components is: asphaltene 30%. Aromatic content> 15%. The blended asphalt used refers to the ordinary ro...

Example Embodiment

[0038] Example 2:

[0039] The preparation method of the high-quality road petroleum asphalt material of the present invention is as follows:

[0040] 1) Under the condition of 120-200℃, heat 90 parts by mass of the main asphalt to the molten state, pump it into the batching tank, add 1.2 parts by mass of the polymer crosslinking agent at 140℃-145℃, and stir for 35min , After mixing uniformly, perform three-level high-speed shearing through the shearing machine;

[0041] 2). Pump into the blending tank, add 8 parts by mass of the blended asphalt and mix evenly;

[0042] 3). Add 0.05 parts by mass of heat stabilizer, stir for 35 minutes, and further grind through colloid mill after uniformity to obtain high-quality road petroleum asphalt.

[0043] The main bitumen used refers to the vacuum residue of the residual oil and heavy crude oil after deep drawing under vacuum. The content of its four components is: asphaltene 30%. Aromatic content> 15%. The blended asphalt used refers to the...

Example Embodiment

[0048] Example 3:

[0049] The preparation method of the high-quality road petroleum asphalt material of the present invention is as follows:

[0050] 1) Under the condition of 120-200℃, heat 87 parts by mass of the main asphalt to the molten state, pump it into the batching tank, add 0.9 parts by mass of polymer crosslinking agent under the condition of 135℃-140℃, and stir for 30min , After mixing uniformly, perform three-level high-speed shearing through the shearing machine;

[0051] 2). Pump into the blending tank, add 12 parts by mass of blended asphalt and mix evenly;

[0052] 3). Add 0.1 parts by mass of heat stabilizer, stir for 20-40 minutes, and then further grind through colloid mill after uniformity to obtain high-quality road petroleum asphalt.

[0053] The main bitumen used refers to the vacuum residue of the residual oil and heavy crude oil after deep drawing under vacuum. The content of its four components is: asphaltene 30%. Aromatic content> 15%. The blended asphal...

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Abstract

The invention discloses a high-quality pavement petroleum asphalt material and a preparation method thereof, belonging to the pavement engineering material technical field. The petroleum asphalt material is prepared from the raw materials according to the parts by weight: 80-95 parts of main asphalt, 5-20 parts of formulated asphalt, 0.01-2 parts of macromolecular crosslinking agent and 0.001-0.25 part of heat stabilizer. The invention adopts chemical crosslinking, heat stabilizer and the combination of cutting and milling to promote the matching of the four components of asphalt to be further optimized and develop in the direction of forming stable colloid structure, improving the pavement performance of the formulated asphalt material and increase the stability of the formulated asphalt product. The invention makes full use of the vacuum residue of residual oil and heavy crude which are treated through vacuum deep extraction and increases the use value so as to reach the effect of resource recycling and environmental protection.

Description

technical field [0001] The invention relates to a road engineering material, in particular to a high-quality road petroleum asphalt material and a blending method thereof. Background technique [0002] At present, the investment in transportation infrastructure construction in various countries is increasing rapidly, and the market demand for high-quality road asphalt is rapidly increasing. However, the production technology of high-quality road petroleum asphalt is lacking, and the output is small, which cannot meet the needs of road construction. [0003] Because the crude oil resources suitable for producing high-quality road asphalt are very limited, and it is difficult to achieve separate mining, separate transportation and separate refining in the mining process, the technical performance of asphalt produced by most refineries does not meet the road industry JTG F40-2004 "Road Asphalt Pavement Construction Technical Specifications" requirements. Some asphalt itself h...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/06C08K13/02C08K5/18C08K5/13C08K3/06C08K5/103C08K5/3492C08J3/24
Inventor 徐培华韩耀斌张俊博苏明
Owner XIAN ZHONGLI ASPHALT CO LTD
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