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Asphalt pavement maintenance coating material and preparation method thereof

A technology for coating materials and asphalt pavement, which is applied in the direction of asphalt coatings, coatings, chemical instruments and methods, etc., can solve the problem of inability to achieve the stiffness and stability of asphalt mastic, and the inability to achieve long-term durability and anti-seepage, operation High environmental requirements and other issues, to achieve the effect of shortening the drying time, good workability, and improving the filming speed

Active Publication Date: 2021-09-21
山东哈力克新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. The composition of the material is simple. Only the water-based emulsification process is used for the asphalt binder, which can realize the compensation for the asphalt film on the road surface after polishing. The thickness is too thin, and the stiffness and stability of asphalt mastic cannot be achieved. The wear resistance is poor. Finally, it is impossible to achieve "long-term durable anti-seepage";
[0009] 2. The demulsification speed is too fast, the performance is unstable, the storage time is short, and the operating environment requirements such as temperature and wind speed are high
[0010] 3. Most of the reductive and regenerative mist seal materials on the market use aromatic hydrocarbon organic solvents, which are poor in environmental protection

Method used

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  • Asphalt pavement maintenance coating material and preparation method thereof
  • Asphalt pavement maintenance coating material and preparation method thereof
  • Asphalt pavement maintenance coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1: Preparation of modified masterbatch.

[0063] Table 2 Modified masterbatch material ratio and parameter control

[0064]

[0065] Material Description:

[0066] Oleic acid: molecular weight 282.46, melting point 13-14°C;

[0067] Palmitoleic acid: molecular weight 254.41, melting point 0.5°C;

[0068] Soybean oleic acid: 280≤molecular weight≤284, melting point 15℃.

[0069] 【Preparation】

[0070] Add the main solvent 2 and anti-seepage agent in the formula amount into the small reaction kettle, stir at 50°C for 20 minutes to dissolve completely, then add the silane coupling agent and modifier in turn, maintain the temperature and continue stirring for 40 minutes, and naturally drop to After room temperature, ultrasonically treat for a certain period of time to obtain activated modified masterbatches, which are respectively recorded as masterbatch 1, masterbatch 2, masterbatch 3, masterbatch 4, masterbatch 5, masterbatch 6, masterbatch 7, and masterb...

Embodiment 2

[0071] Example 2: Preparation of asphalt pavement maintenance coating material.

[0072] Table 3 Material ratio of coating materials

[0073]

[0074] Material Description:

[0075] Qingchuan Rock Asphalt: Penetration 3 (0.1mm) at 25°C, softening point 220°C;

[0076] 50# asphalt: at 25°C, the penetration is 45 (0.1mm), and the softening point is 67°C;

[0077] 40# asphalt: at 25°C, the penetration is 38 (0.1mm), and the softening point is 70°C;

[0078] 30# asphalt: at 25°C, the penetration is 28 (0.1mm), and the softening point is 72°C.

[0079] 【Preparation】

[0080] A1. Heating the asphalt binder to above 135°C, then cooling to maintain a fluid and transportable state to obtain component A;

[0081] A2. Mix the main solvent 1 with the modified masterbatch at a temperature of 50°C and stir evenly to obtain component B;

[0082] A3. Slowly add component A to the main mixer of component B and mix, then add stabilizer, drier, and functional filler in turn, and stir ev...

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Abstract

The invention discloses an asphalt pavement maintenance coating material and a preparation method thereof, and belongs to the field of road engineering. The coating material is prepared from a main solvent I, an asphalt cement, a functional filler, a modified master batch, a stabilizer and a drier according to a specific ratio, and the tested Brookfield viscosity of the coating material at 20 DEG C is 2000-4000 cPs. Compared with the prior art, the coating material disclosed by the invention can greatly improve the water sealing and anti-loosening performance of a pavement, is simple and convenient in implementation process and stable in performance, and has very good popularization and application values.

Description

technical field [0001] The invention relates to the field of road engineering, and specifically provides an asphalt pavement maintenance coating material and a preparation method thereof. Background technique [0002] Asphalt pavement surface seal is one of the most commonly used preventive maintenance methods to solve pavement water seepage and loose damage. At present, it is mainly divided into fog seal, stone chip seal, slurry seal and micro surface. [0003] The mist seal is to spray emulsified asphalt or rejuvenator on the aging asphalt pavement to renew and restore the oxidized asphalt on the pavement. Spraying with spraying equipment, the construction method is simple, but it may reduce the anti-friction ability of the road surface. Only the original asphalt pavement is compensated for the lack of asphalt film. life. [0004] The stone chip seal is to spray a layer of asphalt material (hot asphalt, light asphalt, emulsified asphalt, etc.) on the road surface, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/65C09D7/20C09D7/61C09D7/63C09F9/00
CPCC09D195/00C09D7/65C09D7/20C09D7/61C09D7/63C09F9/00C08K2003/265C08L25/10C08L53/02C08L11/02C08L97/02C08K3/26C08K3/34C08K5/09Y02W30/91
Inventor 邱昌春王春林付建村李振丰
Owner 山东哈力克新材料科技有限公司
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