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Cold repairing, asphalt mixture and its manufacturing method

A technology of cold patching asphalt and mixture, which is applied in the field of asphalt mixture and asphalt mixture manufacturing, and can solve the problems that emulsified asphalt materials cannot be used for large-scale construction of high-grade road surface maintenance, road maintenance restrictions, and inconvenient construction. Achieve excellent high temperature stability, improve properties, and strong wear resistance

Inactive Publication Date: 2005-03-30
袁永长
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two materials must be used at one time, and cannot be used next time. If it rains during construction, the materials cannot be used after being exposed to rain.
In addition, emulsified asphalt materials cannot be used for large-scale construction and maintenance of high-grade road surfaces
Furthermore, hot-mix asphalt materials and emulsified asphalt materials are only suitable for construction in seasons with high temperatures, while in winter with low temperatures, construction is very inconvenient or even impossible.
Therefore, road maintenance is restricted in many ways

Method used

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  • Cold repairing, asphalt mixture and its manufacturing method

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Embodiment

[0052] The composition of the cold-patch asphalt mixture of the present invention and its content in parts by weight are as follows:

[0053]

[0054] Mineral materials, according to the JTJ052-2000 (transfer) asphalt mixture mineral material grading and asphalt dosage range (square hole sieve), the grades of mineral materials are coarse-grained AC-30 I, II, AC-25 I, II, medium-grained AC-20 I, II, AC-16 I, II, fine grain AC-13 I, II, AC-10 I, II, sand grain AC-5 I, II; extra coarse AM-40, coarse grain AM-30, AM-25, medium grain AM-20, AM-16, fine grain AM-13, AM-10.

[0055] The manufacture method of cold patch asphalt mixture of the present invention is as follows:

Embodiment 4、5、9

[0056] The manufacture method of embodiment 4,5,9:

[0057] (1) Preparation of prepolymer A:

[0058] Put the heavy oil into the jacketed stainless steel reaction kettle, and when the temperature rises to 75-85°C, add C 5 or C 9 Petroleum resin, continue to heat up, when the temperature rises to 85-95 ° C, start the high-speed mixer, and shear and mix in the reactor for 20-40 minutes to obtain prepolymer A.

[0059] (2) Preparation of prepolymer B:

[0060] Will C 4 or C 5 or C 9 Add solvent oil into the closed enamel reaction kettle and heat up to 40-50°C, add styrene-butadiene rubber, continue to heat up to 70-80°C, start the high-speed shearing machine, and shear and disperse in the reaction kettle to obtain a prepolymer b.

[0061] (3) Preparation of prepolymer C:

[0062] Add diesel oil or gasoline into a closed stainless steel reaction kettle. When the temperature rises to 30-50°C, add thermoplastic styrene-butadiene rubber. After constant heat for 20-40 minutes,...

Embodiment 3、7、8、10

[0067] The manufacture method of embodiment 3,7,8,10:

[0068] (1) Preparation of prepolymer A:

[0069] Put the heavy oil into the jacketed stainless steel reaction kettle, and when the temperature rises to 75-85°C, add C 5 or C 9 Petroleum resin, continue to heat up, when the temperature rises to 95-100 ° C, start the high-speed mixer, and shear and mix in the reactor for 25-35 minutes to obtain prepolymer A.

[0070] (2) Preparation of prepolymer B:

[0071] Will C 3 or C 7 or C 8 or C 10 Add solvent oil into the closed enamel reaction kettle and heat up to 40-50°C, add styrene-butadiene rubber, continue to heat up to 70-80°C, start the high-speed shearing machine, and shear and disperse in the reaction kettle to obtain a prepolymer b.

[0072] (3) Preparation of prepolymer C:

[0073] Add diesel oil or gasoline into a closed stainless steel reaction kettle. When the temperature rises to 30-50°C, add thermoplastic styrene-butadiene rubber. After constant heat for 3...

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Abstract

An asphalt mixture for cold repair of asphalt pavement is prepared from heavy oil, C5 or C9 petroleum resin, C1-C10 solvent oil, butadiene-styrene rubber, diesel oil or kerosene or gasoline, thermoplastic butadiene-styrene rubber, naphthenic oil, mineral oil RC-10, petroleum asphalt and minerals through preparing 3 predymers, preparing cold repair additive, and adding petroleum asphalt for making asphalt mixture and minerals. Its advantages are convenient application, and no environmental pollution.

Description

technical field [0001] The invention relates to a road patching material, in particular to an asphalt mixture for cold construction asphalt pavement materials and a manufacturing method for the asphalt mixture. Background technique [0002] The existing road materials for asphalt roads mainly include hot mix asphalt mixture and emulsified asphalt mixture. Hot mix asphalt mixture is made by frying and mixing petroleum asphalt, mineral materials, powder materials, etc. in a certain proportion with asphalt mixing equipment in the factory. Then transport the hot hot asphalt mixture to the construction site in time to repair the asphalt road surface. But the whole process needs to be closed to traffic. Emulsified asphalt mixture is made by mixing emulsified asphalt, mineral materials, powder, etc. in a certain proportion. After the emulsified asphalt mixture is used for road repair construction, it must wait for the emulsion in the emulsified asphalt mixture to break. It usual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00E01C7/20
Inventor 袁永长郝培文袁永奇
Owner 袁永长
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