Asphalt concrete self curing agent and application method thereof

A kind of asphalt concrete, self-maintenance technology, applied in the field of traffic engineering, can solve the problems of poor durability of asphalt concrete roads, and achieve the effect of keeping the performance of asphalt unchanged, prolonging the service life and improving the anti-aging performance

Pending Publication Date: 2020-04-10
HEBEI SHANGSHAN PETROLEUM MACHINERY CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem of poor durability of asphalt concrete roads, the invention provides a self-curing agent for asphalt concrete

Method used

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  • Asphalt concrete self curing agent and application method thereof

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Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a self-curing agent for asphalt concrete, including modified zeolite and asphalt regeneration agent (physical index: 60 °C viscosity 11000m 2 / s, saturated + aromatic content 75.43%, gum + asphaltene content 24.03%). Its preparation method is:

[0026] S1. Calcining the coarse and fine components of dual-stage zeolite with a particle size porosity of 10-90% in an electric furnace at 400°C for 1 hour, then soaking in 0.1mol / L NaOH solution for 2 hours after natural cooling, and then Spray a composite coupling agent into the zeolite under the stirring state of 800~1200rpm (the composite coupling agent is a mixture of silane coupling agent, titanate and aluminate with a mass ratio of 3:1:1, and the total amount of natural zeolite The mass ratio of the mass to the composite coupling agent is 50:1), and the coarse component modified zeolite and the fine component modified zeolite are prepared.

[0027] S2. Place the modified zeolite obtained in S1 ...

Embodiment 2

[0029] This embodiment provides a self-curing agent for asphalt concrete, including modified zeolite and asphalt regeneration agent (physical index: 60 °C viscosity 11000m 2 / s, saturated + aromatic content 75.43%, gum + asphaltene content 24.03%). Its preparation method is:

[0030] S1. Calcining the coarse and fine components of dual-graded zeolite with a particle size porosity of 10-90% in an electric furnace at 400°C for 1.5 hours, then soaking in 0.12mol / L NaOH solution for 1 hour after natural cooling, and then Spray the composite coupling agent into the zeolite under the stirring state of 800~1200rpm (the composite coupling agent is a mixture of silane coupling agent, titanate and aluminate with a mass ratio of 2.5:1.2:0.8, zeolite and composite The mass ratio of the coupling agent is 10:1), and the coarse component modified zeolite and the fine component modified zeolite are prepared.

[0031] S2, place the modified zeolite obtained in S1 in a negative pressure envir...

Embodiment 3

[0033] This embodiment provides a self-curing agent for asphalt concrete, including modified zeolite and asphalt regeneration agent (physical index: 60 °C viscosity 11000m 2 / s, saturated + aromatic content 75.43%, gum + asphaltene content 24.03%). Its preparation method is:

[0034] S1. Calcining the coarse and fine components of dual-graded zeolite with a particle size porosity of 10 to 90% in an electric furnace at 500°C for 1 hour, then soaking in 0.08mol / L NaOH solution for 2 hours after natural cooling, and then Spray the composite coupling agent into the zeolite under the stirring state of 800~1200rpm (the composite coupling agent is a mixture of silane coupling agent, titanate and aluminate with a mass ratio of 3.5:0.8:1.2, and the zeolite and composite The mass ratio of the coupling agent is 100:1), and the coarse component modified zeolite and the fine component modified zeolite are prepared.

[0035] S2. Place the modified zeolite obtained in S1 in a negative pres...

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Abstract

The invention belongs to the technical field of traffic engineering, and specifically relates to an asphalt concrete self curing agent and an application method thereof. The asphalt concrete self curing agent comprises a hard porous material and an asphalt regenerating agent. The hard porous material adsorbs the asphalt regenerating agent to form the asphalt concrete self curing agent. The asphaltconcrete self curing agent can modify asphalt. During the aging process of asphalt, the asphalt regenerating agent is continuously released, the aging of asphalt is delayed, and the asphalt durability is obviously improved. After the asphalt concrete containing the curing agent is applied to a road, the pavement damage is inhibited, and the service life of the road is prolonged.

Description

technical field [0001] The invention belongs to the technical field of traffic engineering, and in particular relates to an asphalt concrete self-curing agent and a using method thereof. Background technique [0002] my country's investment in transportation infrastructure is huge and increasing day by day, most of which are asphalt concrete roads. However, asphalt concrete roads need to be affected by natural conditions such as light, heat, water or immersion for a long time after paving, which can cause aging of asphalt and the resulting poor temperature and water stability, resulting in asphalt Cracks, subsidence, potholes, etc. will appear on concrete roads after three or four years of use, and the durability problem is very serious. Contents of the invention [0003] Aiming at the problem of poor durability of asphalt concrete roads, the invention provides an asphalt concrete self-curing agent. [0004] And, the present invention also provides a method for using the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B20/06C04B20/02C04B20/10C04B26/26
CPCC04B20/023C04B20/06C04B20/1044C04B26/26C04B14/047C04B14/02C04B18/12C04B14/06C04B20/0096
Inventor 侯东伟韩宇栋孙国辉孙合平袁振刘伟京许兵吕新明刘东升高文亮夏喜新李合营
Owner HEBEI SHANGSHAN PETROLEUM MACHINERY CO LTD
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