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Asphalt road surface functional repairing agent and its production

A technology of asphalt pavement and road asphalt, which is applied in the field of road asphalt pavement functional repair agent and its preparation, can solve the problems of long time of closing traffic and non-compliance, etc., and achieve the effect of rapid recovery to traffic, strong permeability and low viscosity

Active Publication Date: 2007-04-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The old asphalt pavement regeneration agent proposed in the above-mentioned patent, due to the limitation of the permeability of the regeneration agent itself, needs to destroy the structure of the original asphalt pavement when using it, crush the recovered asphalt mixture, mix the regeneration agent with the broken old Re-construction after mixing asphalt mixture
This not only consumes a lot of manpower and material resources, but also requires a long time to close the traffic, which does not meet the requirements of today's transportation development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This example illustrates the preparation of asphalt pavement functional restoration agent with natural asphalt powder.

[0038] With 74g of natural asphalt powder, 354g of anthracene oil, 172g of oil extracted from the fourth line, control the heating temperature at 170 ° C, stir with the EURO ST type electric stirrer produced by the German IKA company, and the rotating speed is 200 rpm. After 20 minutes of reaction, The asphalt pavement functional repair agent ARR-1 was prepared. The test results are shown in Table 4.

Embodiment 2

[0040] This example illustrates the preparation of asphalt pavement functional repair agent with solvent deoiled asphalt.

[0041]Take 86g of solvent deoiled asphalt powder, 350g of anthracene oil, and 164g of four-line extraction oil, control the heating temperature at 120°C, stir with a EURO ST type electric stirrer produced by German IKA company, the speed is 200 rpm, and react for 45 minutes Finally, the asphalt pavement functional repair agent ARR-2 was obtained. The test results are shown in Table 4.

Embodiment 3

[0043] This example illustrates the situation of preparing asphalt pavement functional restoration agent with vacuum residue.

[0044] With 113g of vacuum residue asphalt powder, 331g of anthracene oil, and 156g of oil extracted from the fourth line, the heating temperature is controlled at 80°C, and the EURO ST type electric stirrer produced by the German IKA company is used to stir at a speed of 200 rpm. The reaction is 100 Minutes later, the asphalt pavement functional repair agent ARR-3 was prepared. The test results are shown in Table 4.

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Abstract

A repairing agent for asphalt pavement and its production are disclosed. The repairing agent consists of hard asphalt powder 5-35wt%, heavy mineral oil 16-35wt% and anthracene oil 30-79wt%. The process is carried out by mixing the raw materials at 65-200degree, and reacting for 10-120mins under mechanical agitating and shearing. It's simple and fast, has better permeability, flexibility and elasticity, less hardness, brittleness and viscosity.

Description

technical field [0001] The invention belongs to an asphalt material composition and a preparation method thereof, more specifically to a road asphalt pavement functional repair agent and a preparation method thereof. Background technique [0002] During the use of asphalt pavement, the road surface is worn due to the driving of vehicles, the operation of maintenance equipment and environmental influences, such as the rolling of wheels, steel brushes for maintenance vehicles, automobile exhaust, heat cycle and ultraviolet radiation, rain and other factors make asphalt Pavement is prone to aging. The main performance is that the asphalt on the pavement loses its original viscosity, toughness and cohesion to the aggregate, resulting in cracks, water seepage, potholes and other damage phenomena on the pavement, which eventually leads to damage to the pavement structure and shortens the service life of the asphalt pavement. If the asphalt pavement can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00E01C7/35
Inventor 王翠红王子军佘玉成罗爱兰龙军
Owner CHINA PETROLEUM & CHEM CORP
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