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Road asphalt and preparation method thereof

A technology for road asphalt and petroleum asphalt, applied in the field of materials, can solve the problems of easy deformation of road asphalt, easy aging of asphalt, pockmarked surface, etc., and achieve the effects of good adhesion and permeability, not easy to crack and fall off, and simple preparation process

Inactive Publication Date: 2019-12-17
珠海市三悦石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Asphalt roads in the prior art are prone to problems such as pavement aging, cracks, and pockmarks during service time. The main reason is that the used road asphalt is easy to age, and the adhesion between road asphalt and road sand is poor, and the permeability is poor. In summer, the temperature of the road surface is too high. For example, the road asphalt at 55°C is easy to soften, and the traffic is squeezed, which makes the road asphalt easy to deform and fall off.

Method used

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  • Road asphalt and preparation method thereof
  • Road asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of road asphalt, in parts by weight, comprises the following components:

[0039]

[0040] The molar ratio of C and H in the petroleum pitch is 0.87.

[0041] The viscosity of the petroleum pitch at 135° C. is 0.8 Pa·s.

[0042] The petroleum bitumen is composed of alkanes, cycloalkanes and aromatics.

[0043] The content of phenol and phenol derivatives in the coker oil is 20-22% by mass percentage.

[0044] C in the condensate 5 -C 8 The content of hydrocarbon mixture (comprising alkanes, alkenes, alkynes) is 83% by mass percentage.

[0045] The condensed oil also contains thiophenes, mercaptans, and sulfides.

[0046] The sulfur content of the cycle oil is 0.1% by mass percentage.

[0047] The cycle oil is a hydrocarbon mixture obtained by catalytic cracking of crude oil.

[0048] The density of the heat transfer oil is 0.88g / cm 3 .

[0049] The heat-conducting oil is an alkylnaphthalene-type heat-conducting oil (a compound connected with an alkane...

Embodiment 2

[0057] A kind of road asphalt, in parts by weight, comprises the following components:

[0058]

[0059] The viscosity of the petroleum pitch at 135° C. is 0.8 Pa·s.

[0060] The petroleum bitumen is composed of alkanes, cycloalkanes and aromatics.

[0061] The petroleum asphalt is light asphalt (provided by Sinopec Maoming Branch, model 180#).

[0062] The content of phenol and phenol derivatives in the coker oil is 25% by mass percent.

[0063] C in the condensate 5 -C 8 The content of hydrocarbon mixture (comprising alkanes, alkenes, alkynes) is 88% by mass percentage.

[0064] The condensed oil also contains thiophenes, mercaptans, and sulfides.

[0065] The sulfur content of the cycle oil is 0.3% by mass percentage.

[0066] The cycle oil is a hydrocarbon mixture obtained by catalytic cracking of crude oil.

[0067] The density of the heat transfer oil is 0.89g / cm 3 .

[0068] The heat-conducting oil is an alkylbenzene-type heat-conducting oil (mainly composed...

Embodiment 3

[0077] A kind of road asphalt, in parts by weight, comprises the following components:

[0078]

[0079] The molar ratio of C and H in the petroleum pitch is 0.86.

[0080] The viscosity of the petroleum pitch at 135° C. is 1.8 Pa·s.

[0081] The petroleum bitumen is composed of alkanes, cycloalkanes and aromatics.

[0082] The content of phenol and phenol derivatives in the coker oil is 26% by mass percentage.

[0083] C in the condensate 5 -C 8 The content of hydrocarbon mixture (comprising alkanes, alkenes, alkynes) is 84% ​​by mass percentage.

[0084] The condensed oil also contains thiophenes, mercaptans, and sulfides.

[0085] The sulfur content of the cycle oil is 0.4% by mass percentage.

[0086] The cycle oil is a hydrocarbon mixture obtained by catalytic cracking of crude oil.

[0087] The density of the heat transfer oil is 0.89g / cm 3 .

[0088] The heat transfer oil is one of alkyl biphenyl type heat transfer oils (compounds such as alkyl branched chai...

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Abstract

The invention belongs to the field of materials, and discloses road asphalt which comprises the following components in parts by weight: 50-80 parts of petroleum asphalt, 10-18 parts of coking oil, 10-30 parts of condensate oil, 1-3 parts of circulating oil, 1-3 parts of heat conduction oil, 0.5-2.5 parts of an asphalt regenerating agent and 0.5-2 parts of a viscosity reducer. The molar ratio of Cto H in the petroleum asphalt is 0.86 to 0.88. The prepared road asphalt can still keep good adhesive force and permeability to sand and stone at the temperature of 60 DEG C, is not easy to age, is long in service life in a road, and is not easy to crack and fall off; the quality guarantee period of the prepared road asphalt at normal temperature can be as long as 3 years, the preparation processof the road asphalt is simple, and no pollution is generated to the environment in the preparation process.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a road asphalt and a preparation method thereof. Background technique [0002] Asphalt is divided into petroleum asphalt, coal tar pitch and natural asphalt. Petroleum asphalt is generally the residue after crude oil distillation, coal tar pitch is generally a by-product of coking, and natural asphalt is formed according to special natural climate conditions. Widely used in highways and urban roads. [0003] Asphalt roads in the prior art are prone to problems such as pavement aging, cracks, and pockmarks during service time. The main reason is that the used road asphalt is easy to age, and the adhesion between road asphalt and road sand is poor, and the permeability is poor. In summer, the temperature of the road surface is too high, for example, the road asphalt at 55°C is easy to soften, and the extrusion of passing vehicles makes the road asphalt easy to deform and fall off. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L83/10
CPCC08L95/00C08L2205/025C08L2205/035C08L91/00C08L83/10
Inventor 赵炜鸣赵国峰
Owner 珠海市三悦石油化工有限公司