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A kind of silicon-modified road asphalt pavement maintenance agent and preparation method thereof

A technology of road asphalt and silicon modifier, applied in building components, building insulation materials, construction and other directions, can solve the problems of unfriendly body, insufficient strength, poor durability, etc., to improve road performance, stable performance, and preparation technology. simple effect

Active Publication Date: 2020-08-04
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art discloses a variety of asphalt curing agents, such as Chinese patents 200810069206.4, 201310227803.6 and 201510845710.9 respectively disclose a kind of asphalt curing agent, but there are generally disadvantages such as insufficient strength, poor durability, instability, etc., and benzene, toluene, Toxic aromatics such as anthracene and naphthalene are not environmentally friendly and harmful to the body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A silicon-modified road asphalt pavement maintenance agent, the mass ratio of each component is as follows:

[0018] Stir and mix waste engine oil and kerosene at room temperature according to the mass ratio of 2:1 to obtain asphalt regenerant;

[0019] Add 10g of silicone resin modifier, 10g of ascorbic acid, 3g of anti-wear agent (1g of iron black, 2g of carbon black), 5g of pure acrylic emulsion, and 2g of the above regeneration agent into 50g of ethylene pot liquid, stir for 20 minutes, and then add to the molten 20g of 70# refined asphalt, and stir evenly to get the asphalt curing agent.

[0020] Take 8g of the asphalt curing agent and 192g of recovered aged asphalt and mix and react at 80°C for 1 hour, and analyze and test the obtained asphalt. The softening point decreased from 58.7°C to 48.1°C, the penetration increased from 47dmm to 78dmm, and the ductility at 15°C increased from 50cm to >150cm.

Embodiment 2

[0022] A silicon-modified road asphalt pavement maintenance agent, the mass ratio of each component is as follows:

[0023] Stir and mix waste engine oil and kerosene at room temperature according to the mass ratio of 2:1 to obtain asphalt regenerant;

[0024] Add 10g of silicone resin modifier, 10g of ascorbic acid, 3g of anti-wear agent (2g of iron black, 1g of carbon black), 5g of pure acrylic emulsion, and 2g of the above regeneration agent into 30g of ethylene pot liquid, stir for 20 minutes, and then add to the molten 40g of 90# refined asphalt, and stir evenly to get the asphalt curing agent.

[0025] Take 8g of the asphalt curing agent and 192g of recovered aged asphalt and mix and react at 80°C for 1 hour, and analyze and test the obtained asphalt. The softening point decreased from 58.7°C to 47.8°C, the penetration increased from 47dmm to 79dmm, and the ductility at 15°C increased from 50cm to >150cm.

Embodiment 3

[0027] A silicon-modified road asphalt pavement maintenance agent, the mass ratio of each component is as follows:

[0028] Stir and mix waste engine oil and kerosene at room temperature according to a mass ratio of 4:1 to obtain an asphalt regenerant;

[0029] Add 5g of silicone resin modifier, 3g of ascorbic acid, 0.33g of iron black, 0.67g of carbon black, 1g of sodium silicate, and 2.5g of the above regeneration agent into 50g of ethylene pot liquid, stir for 30 minutes, and then add to 90°C molten 37.5g of SBS modified asphalt, stir evenly to get the asphalt curing agent.

[0030] Take 8g of the asphalt curing agent and 192g of recovered aged asphalt and mix and react at 80°C for 1 hour, and analyze and test the obtained asphalt. The softening point decreased from 58.7°C to 47.8°C, the penetration increased from 47dmm to 75dmm, and the ductility at 15°C increased from 50cm to >150cm.

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PUM

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Abstract

The invention discloses a silicon modified road asphalt pavement maintaining agent which comprises the following components in percentage by mass: 20-40% of refined asphalt, 30-50% of a solvent, 5-10%of a silicon modifier, 1-2.5% of a regeneration agent, 3-10% of a reducing agent, 1-5% of a waterproof anti-seepage agent and 1-3% of a wearing resistant agent, wherein the silicon modifier is an organic silicon resin. The invention further discloses a preparation method of the silicon modified road asphalt pavement maintaining agent. The preparation method comprises the following steps: meltingthe refined asphalt at 90-100 DEG C, sequentially adding the solvent, the regeneration agent, the reducing agent, the waterproof anti-seepage agent and the wearing resistant agent into which the silicon modifier is dissolved, and stirring for 20-30 minutes at a high speed, thereby obtaining the environmental-friendly asphalt maintaining agent. By adopting the silicon modified road asphalt pavementmaintaining agent, properties of an asphalt pavement can be effectively improved, and the service life of the asphalt pavement can be prolonged.

Description

technical field [0001] The invention relates to a silicon-modified road asphalt pavement maintenance agent and a preparation method thereof, belonging to the technical field of road asphalt pavement maintenance and functional restoration. Background technique [0002] Highway is an important transportation infrastructure for the nation, and most of the highways use asphalt pavement. The newly-built asphalt pavement is dark black. With the comprehensive influence of sunlight, rain, traffic load and other aspects during long-term use, the asphalt pavement gradually ages, and early damage such as rutting, cracks, and oil flooding appear in different degrees, resulting in road surface damage. Reduced performance and shortened lifespan. Therefore, it is very necessary to carry out early pre-maintenance of asphalt pavement to prevent further deterioration, causing extensive damage and costing expensive maintenance costs. At present, the use of asphalt road maintenance agent has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L83/04C08L33/04C08L9/08C08L91/00C08K13/02C08K3/04C08K3/22C08K5/1535C08K3/34C08K5/053
CPCC08K2003/2275C08L95/00C08L2205/025C08L2205/035C08L2207/22C08L83/04C08L33/04C08L91/00C08K13/02C08K3/04C08K3/22C08K5/1535C08K3/34C08L9/08C08K5/053
Inventor 温丽瑗陈小平陈东庆袁凯恒柯海
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH