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High-quality pavement petroleum asphalt material and preparation method thereof

A road petroleum asphalt and asphalt technology, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problems of high-grade road construction that cannot meet heavy loads, large traffic volume, lack of high-quality road petroleum asphalt production technology, and poor road performance and other issues, to achieve the effects of excellent technical performance and road performance, improved use value, and low production cost

Active Publication Date: 2012-11-28
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 technical specification requirements
Some asphalt itself has a high asphaltene content, and during high-temperature storage and mixing, the unstable colloidal components in the asphalt are easily oxidized and transformed into asphaltene, which further increases the asphaltene content and rapidly reduces the low-temperature performance and aging resistance of asphalt , resulting in poor road performance and short service life, unable to meet the requirements of heavy load, large traffic volume, and high-grade road construction

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
Comparison scheme
Effect test

Embodiment 1

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

[0030] 1) Under the condition of 120-200°C, heat 89 parts by mass of the main asphalt to a molten state, pump it into the batching tank, add 1 part by mass of polymer cross-linking agent under the condition of 135°C-140°C, and stir for 30 minutes , after stirring evenly, three-stage high-speed shearing is carried out by a shearing machine;

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

[0032] 3) Add 0.1 part of mass heat stabilizer, stir for 30 minutes, and then grind it through a colloid mill to obtain high-quality road petroleum asphalt.

[0033] Among them, the main asphalt used refers to the vacuum deep-drawn residual oil and the vacuum residual oil of heavy crude oil, and its four-component content is: asphaltene30%, Aroma > 15%. The blended asphalt used refers to ordinary road petroleum asphalt with h...

Embodiment 2

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

[0040] 1) Under the condition of 120-200°C, heat 90 parts by mass of the main asphalt to a molten state, pump it into the batching tank, add 1.2 parts by mass of polymer cross-linking agent under the condition of 140°C-145°C, and stir for 35 minutes , after stirring evenly, three-stage high-speed shearing is carried out by a shearing machine;

[0041] 2), pump into the blending tank, add 8 parts of quality blended asphalt and stir evenly;

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

[0043] Among them, the main asphalt used refers to the vacuum deep-drawn residual oil and the vacuum residual oil of heavy crude oil, and its four-component content is: asphaltene30%, Aroma > 15%. The blended asphalt used refers to ordinary road petroleum...

Embodiment 3

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

[0050] 1) Under the condition of 120-200°C, 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 cross-linking agent under the condition of 135°C-140°C, and stir for 30 minutes , after stirring evenly, three-stage high-speed shearing is carried out by a shearing machine;

[0051] 2), pump into the blending tank, add 12 parts of quality blended asphalt and stir evenly;

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

[0053]Among them, the main asphalt used refers to the vacuum deep-drawn residual oil and the vacuum residual oil of heavy crude oil, and its four-component content is: asphaltene30%, Aroma > 15%. The blended asphalt used refers to ordinary road petroleum asph...

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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 asphaltproduct. 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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Patent Type & Authority Patents(China)
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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