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Environment-friendly vulcanizing material modifier for drainage asphalt roads and preparation method thereof

A technology of drainage asphalt and modifier, which is applied in the direction of building insulation materials, building components, buildings, etc., and can solve the problems of uneconomical, inconvenient, uneconomical, and increased raw material consumption, etc.

Inactive Publication Date: 2013-05-01
SHANGHAI PUDONG ROAD & BRIDGE CONSTR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modifier provided in this patent accounts for 8% of the asphalt mixture, and the dosage is too large, that is, it is mainly suitable for large-scale road paving projects, and the required raw material consumption increases accordingly, resulting in high cost. If used The repair of small-scale or small-scale drainage asphalt pavement will waste resources, be uneconomical, and have low cost performance
[0007] In addition, for small-scale or large-scale regional repairs, it is not economical and inconvenient to apply existing related technologies or materials because of the small amount of materials required

Method used

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  • Environment-friendly vulcanizing material modifier for drainage asphalt roads and preparation method thereof
  • Environment-friendly vulcanizing material modifier for drainage asphalt roads and preparation method thereof
  • Environment-friendly vulcanizing material modifier for drainage asphalt roads and preparation method thereof

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preparation example Construction

[0028] Simultaneously, the present invention also provides a kind of preparation method of the environment-friendly hot-fill material modifier that is used for drainage asphalt pavement, and described method comprises the following steps:

[0029] A. Add 10-20 parts by weight of rock bitumen to the reactor, preheat the reactor to 130-160°C, and stir for 5-10 minutes;

[0030] B. Heat up the reaction kettle to 170-190°C, add 10-20 parts by weight of rubber powder, and stir for 60-120 minutes;

[0031] C. Gradually lower the temperature to 140-160°C, add 30-500 parts by weight of polyester and 0.1-1 part by weight of tackifier in turn, and stir for 20-40 minutes to obtain a mixture containing rubber powder, polyester, and tackifier. Mixture with rock bitumen;

[0032] D. After the mixing is completed, the mixture is injected into the extruder, sheared and water-cooled to granulate, and the finally obtained granules are the environmental-friendly hot-fill modifier for drainage a...

Embodiment 1

[0036]Add 50 parts by weight of rock asphalt with a bitumen content of 30% to the reactor, preheat to 150°C, and stir rapidly for 40 minutes; then raise the temperature of the reactor to 180°C, and load 20 parts by weight of rubber powder with a particle size of 60 mesh, Stir rapidly for 80 minutes; then wait for the reaction kettle to cool down naturally to 140°C, then add 0.1 parts by weight of tackifier SBS and 30 parts by weight of polyester polymethyl methacrylate in sequence, and stir rapidly for 30 minutes; after the final stirring is completed, put The mixture is injected into a twin-screw extruder, sheared and water-cooled to granulate. The prepared particles are not only an environment-friendly hot-fill modifier for drainage asphalt pavement.

Embodiment 2

[0038] Add 75 parts by weight of rock asphalt with a bitumen content of 40% to the reactor, preheat to 160°C, and stir rapidly for 50 minutes; then raise the temperature of the reactor to 180°C, and load 10 parts by weight of rubber powder with a particle size of 80 mesh, Stir rapidly for 70 minutes; then wait for the reaction kettle to cool down naturally to 150°C, then add 1 part by weight of tackifier SBS and 100 parts by weight of polyester polyethyl methacrylate in sequence, and stir rapidly for 40 minutes; after the final stirring is completed, pour the mixture into Single-screw extruder, shear water-cooled granulation. The prepared particles are not only an environment-friendly hot-fill modifier for drainage asphalt pavement.

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Abstract

The invention discloses an environment-friendly vulcanizing material modifier for drainage asphalt roads. The modifier comprises the following components in part by weight: 10 to 20 parts of rubber powder, 30 to 500 parts of polyester matters, 0.1 to 1 part of tackifier and 50 to 80 parts of rock asphalt. The invention further discloses a preparation method of the environment-friendly vulcanizing material modifier for the drainage asphalt roads. The modifier provided by the invention has the advantages of low preparation cost, easiness and convenience in execution and operation, high specificity (for the repairing engineering of small-scale or range asphalt roads), economy, and easiness and convenience in execution of repairing materials and technology for the drainage asphalt roads.

Description

technical field [0001] The invention belongs to the intersecting field of road composite materials and environmental protection, and in particular relates to an environment-friendly hot patch modifier for drainage asphalt pavement and a preparation method thereof, especially suitable for repairing small-scale or range drainage asphalt pavement project. Background technique [0002] Drainage asphalt pavement is a kind of asphalt mixture pavement with various functions. Because of its advantages of inhibiting water splashing and fogging, reducing noise, reducing glare, preventing water drift and increasing the adhesion between pavement and tires, it has been used by many State use. With the acceleration of urbanization in my country, the related technologies of drainage asphalt pavement continue to develop and mature, and the quantity and quality of paving continue to increase. [0003] With the passage of time, the drainage asphalt pavement will gradually appear different d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L23/08C08L31/04C08L75/04C08L33/12C08L33/10C08L53/02
Inventor 李军代刘钢闫国杰邓国民李交马利志夏庆宇徐韵淳袁月王腾飞黄兴源
Owner SHANGHAI PUDONG ROAD & BRIDGE CONSTR
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