CN112280321A - Asphalt and preparation method thereof - Google Patents
Asphalt and preparation method thereof Download PDFInfo
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- CN112280321A CN112280321A CN202011180287.2A CN202011180287A CN112280321A CN 112280321 A CN112280321 A CN 112280321A CN 202011180287 A CN202011180287 A CN 202011180287A CN 112280321 A CN112280321 A CN 112280321A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Civil Engineering (AREA)
- Materials Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses asphalt, which comprises the following raw materials in parts by weight: 400 parts of matrix asphalt 280-60 parts, 30-60 parts of thermoplastic rubber, 55-80 parts of waste rubber powder, 30-50 parts of waste plastic, 35-65 parts of stabilizer, 50-80 parts of filler, 30-40 parts of defoamer and 45-70 parts of tackifying resin. The asphalt has high strength, good stability and low production cost, and can meet the requirement of long-term use of roads. In addition, the invention also provides a preparation method of the asphalt, which has simple process and low cost and is suitable for industrial production.
Description
Technical Field
The invention relates to the technical field of road building materials, in particular to asphalt and a preparation method thereof.
Background
With the rapid development of roads and urban roads in China, the traffic transportation industry also puts higher requirements on the comfort, durability, safety and environmental protection of road pavements. Asphalt is also increasingly consumed as one of the common materials for paving.
Asphalt is a waterproof, moistureproof and anticorrosive organic cementing material, and can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt: wherein, the coal tar pitch is a byproduct of coking; petroleum pitch is the residue of crude oil distillation; natural bitumen is stored underground, and some forms a mineral layer or is accumulated on the surface of the crust. In the prior art, the performance of the traditional asphalt pavement is easy to degrade under the action of a heavy-duty vehicle, the traditional asphalt pavement has low strength, poor stability and high maintenance cost, and the requirement of long-term use of the road cannot be met.
Therefore, how to provide asphalt with high strength, good stability and low production cost becomes a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to solve the technical problems, the invention provides asphalt which has high strength, good stability and low production cost and can meet the requirement of long-term use of roads. In addition, the invention also provides a preparation method of the asphalt, which has simple process and low cost and is suitable for industrial production.
The invention discloses asphalt, which comprises the following raw materials in parts by weight: 400 parts of matrix asphalt 280-60 parts, 30-60 parts of thermoplastic rubber, 55-80 parts of waste rubber powder, 30-50 parts of waste plastic, 35-65 parts of stabilizer, 50-80 parts of filler, 30-40 parts of defoamer and 45-70 parts of tackifying resin.
Preferably, the particle size of the waste rubber powder is 80-140 meshes.
Preferably, the matrix asphalt is one or more of petroleum asphalt, natural asphalt, coal asphalt and rock asphalt.
Preferably, the waste plastic is one or more of waste polyethylene, waste polypropylene, waste polybutylene, waste polystyrene, or waste ethylene-vinyl acetate copolymer.
Preferably, the thermoplastic rubber is a styrene-isoprene-styrene block copolymer, and/or a styrene-butadiene-styrene block copolymer.
Preferably, the filler is one or more of calcium carbonate, carbon black, shredded paper, sawdust, cotton dust, glass fiber, asbestos, argil, mica, talc, hollow microspheres, diatomite, quartz, silica, white carbon black and metal powder.
Preferably, the stabilizer is one or more of rosin, rosin resin, polyvinyl alcohol and sulfur; and/or the defoaming agent is one of a butyl phosphate defoaming agent, a polysiloxane defoaming agent and a polyether modified silicone oil defoaming agent; and/or the tackifying resin is one or more of coumarone-indene resin, C5, C9, C5/C9 petroleum resin, DCPD resin, alkyl phenolic resin and xylene resin.
In addition, the invention also provides a preparation method of the asphalt, which comprises the following steps:
preparing materials: weighing the raw materials according to the parts by weight, and heating the matrix asphalt to the temperature of 120-;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing 3-6 times at a high speed by using a shearing machine or grinding 3-6 times by using a colloid mill in a mixing tank at the temperature of 140-160 ℃ to obtain a pretreatment substance A;
transferring the pretreatment substance A to a storage tank to develop for 2-5 hours to obtain a development substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 180 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 25-40min to obtain a mixture C;
stirring the mixture C at a constant temperature for 25-50min at a stirring speed of 600-800r/min, and standing for 3-5 hours after stirring is completed to obtain the asphalt.
Preferably, the method comprises the following steps:
preparing materials: weighing the raw materials in parts by weight,
heating the matrix asphalt to 135 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing for 5 times at a high speed by using a shearing machine or grinding for 5 times by using a colloid mill in a mixing tank at the temperature of 150 ℃ to obtain a pretreated substance A;
transferring the pretreatment substance A to a storage tank to develop for 4 hours to obtain a developmental substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 165 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 35min to obtain a mixture C;
and stirring the mixture C for 35min at a constant temperature, wherein the stirring speed is 700r/min, and standing for 3 hours after the stirring is finished to obtain the asphalt.
The invention has the beneficial effects that:
1. the asphalt provided by the invention has high strength, good stability and low production cost, and can meet the long-term use requirement of roads.
2. The method provided by the invention has the advantages of simple process and low cost, and is suitable for industrial production.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
The asphalt comprises the following raw materials in parts by weight: 280 parts of matrix asphalt, 30 parts of thermoplastic rubber, 55 parts of waste rubber powder, 30 parts of waste plastic, 35 parts of stabilizer, 50 parts of filler, 30 parts of defoaming agent and 45 parts of tackifying resin.
Wherein the particle size of the waste rubber powder is 80 meshes; the matrix asphalt is petroleum asphalt; the waste plastics are waste polyethylene; the thermoplastic rubber is a styrene-isoprene-styrene block copolymer; the filler is calcium carbonate; the stabilizer is rosin; the defoaming agent is a butyl phosphate defoaming agent; the tackifying resin is coumarone-indene resin.
Specifically, the preparation method of the asphalt comprises the following steps:
preparing materials: weighing the raw materials in parts by weight, and heating the matrix asphalt to 120 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing 3 times at a high speed by using a shearing machine or grinding 3 times by using a colloid mill in a mixing tank at the temperature of 140 ℃ to obtain a pretreated substance A;
transferring the pretreatment substance A to a storage tank for development for 2 hours to obtain a development substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 150 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 25min to obtain a mixture C;
and stirring the mixture C for 25min at a constant temperature, wherein the stirring speed is 600r/min, and standing for 3 hours after stirring is finished to obtain the asphalt.
Example 2
The asphalt comprises the following raw materials in parts by weight: 400 parts of matrix asphalt, 60 parts of thermoplastic rubber, 80 parts of waste rubber powder, 50 parts of waste plastic, 65 parts of stabilizer, 80 parts of filler, 40 parts of defoaming agent and 70 parts of tackifying resin.
Wherein the particle size of the waste rubber powder is 140 meshes; the matrix asphalt is rock asphalt; the waste plastics are waste polybutylene and waste ethylene-vinyl acetate copolymer; the thermoplastic rubber is a styrene-butadiene-styrene block copolymer; the filler is shredded paper, sawdust, cotton flock and white carbon black; the stabilizer is polyvinyl alcohol; the defoaming agent is a polysiloxane defoaming agent; the tackifying resin is alkyl phenolic resin and xylene resin.
Specifically, the preparation method of the asphalt comprises the following steps:
preparing materials: weighing the raw materials in parts by weight,
heating the matrix asphalt to 135 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing for 5 times at a high speed by using a shearing machine or grinding for 5 times by using a colloid mill in a mixing tank at the temperature of 150 ℃ to obtain a pretreated substance A;
transferring the pretreatment substance A to a storage tank to develop for 4 hours to obtain a developmental substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 165 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 35min to obtain a mixture C;
and stirring the mixture C for 35min at a constant temperature, wherein the stirring speed is 700r/min, and standing for 3 hours after the stirring is finished to obtain the asphalt.
Example 3
The asphalt comprises the following raw materials in parts by weight: 300 parts of matrix asphalt, 50 parts of thermoplastic rubber, 60 parts of waste rubber powder, 40 parts of waste plastic, 50 parts of stabilizer, 60 parts of filler, 35 parts of defoamer and 65 parts of tackifying resin.
Wherein the particle size of the waste rubber powder is 120 meshes; the matrix asphalt is natural asphalt and coal asphalt; the waste plastics are waste polyethylene and waste polypropylene; the thermoplastic rubber is a styrene-isoprene-styrene block copolymer and a styrene-butadiene-styrene block copolymer; the filler is shredded paper, sawdust, cotton dust, glass fiber and metal powder; the stabilizer is rosin resin and polyvinyl alcohol; defoaming agent polyether modified silicone oil defoaming agent; the tackifying resin is coumarone-indene resin and xylene resin.
Specifically, the preparation method of the asphalt comprises the following steps:
preparing materials: weighing the raw materials in parts by weight, and heating the matrix asphalt to 145 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing 4 times at high speed by using a shearing machine or grinding 5 times by using a colloid mill in a mixing tank at the temperature of 158 ℃ to obtain a pretreated substance A;
transferring the pretreatment substance A to a storage tank to develop for 4 hours to obtain a developmental substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 168 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 35min to obtain a mixture C;
and stirring the mixture C for 40min at a constant temperature, wherein the stirring speed is 700r/min, and standing for 4 hours after the stirring is finished to obtain the asphalt.
Example 4
The asphalt comprises the following raw materials in parts by weight: 330 parts of matrix asphalt, 43 parts of thermoplastic rubber, 78 parts of waste rubber powder, 48 parts of waste plastic, 55 parts of stabilizer, 58 parts of filler, 38 parts of defoaming agent and 65 parts of tackifying resin.
Wherein the particle size of the waste rubber powder is 135 meshes; the matrix asphalt is coal asphalt. The waste plastics is waste polypropylene; the thermoplastic rubber is a styrene-butadiene-styrene block copolymer; the filler is mica, talc, hollow microsphere, and diatomaceous earth; the stabilizer is rosin and sulfur; the defoaming agent is a polysiloxane defoaming agent; the tackifying resin is DCPD resin.
Specifically, the preparation method of the asphalt comprises the following steps:
preparing materials: weighing the raw materials in parts by weight, and heating the matrix asphalt to 126 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing 3 times at a high speed by using a shearing machine or grinding 3 times by using a colloid mill in a mixing tank at the temperature of 155 ℃ to obtain a pretreated substance A;
transferring the pretreatment substance A to a storage tank to develop for 5 hours to obtain a developmental substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 175 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 36min to obtain a mixture C;
and stirring the mixture C for 48min at a constant temperature, wherein the stirring speed is 780r/min, and standing for 3.5 hours after stirring is finished to obtain the asphalt.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The asphalt is characterized by comprising the following raw materials in parts by weight:
400 parts of matrix asphalt 280-60 parts, 30-60 parts of thermoplastic rubber, 55-80 parts of waste rubber powder, 30-50 parts of waste plastic, 35-65 parts of stabilizer, 50-80 parts of filler, 30-40 parts of defoamer and 45-70 parts of tackifying resin.
2. The asphalt according to claim 1, wherein the particle size of the waste rubber crumb is 80 to 140 mesh.
3. The asphalt according to claim 1, wherein the base asphalt is one or more of petroleum asphalt, natural asphalt, coal asphalt and rock asphalt.
4. The asphalt according to claim 1, wherein the waste plastic is one or more of waste polyethylene, waste polypropylene, waste polybutylene, waste polystyrene, or waste ethylene-vinyl acetate copolymer.
5. The asphalt according to claim 1, wherein the thermoplastic rubber is a styrene-isoprene-styrene block copolymer, and/or a styrene-butadiene-styrene block copolymer.
6. The asphalt according to claim 1, wherein the filler is one or more of calcium carbonate, carbon black, shredded paper, wood chips, cotton chips, glass fibers, asbestos, clay, mica, talc, hollow microspheres, diatomaceous earth, quartz, silica, white carbon black and metal powder.
7. The asphalt according to claim 1, wherein the stabilizer is one or more of rosin, rosin resin, polyvinyl alcohol and sulfur;
and/or the presence of a gas in the gas,
the defoaming agent is one of a butyl phosphate defoaming agent, a polysiloxane defoaming agent and a polyether modified silicone oil defoaming agent;
and/or the tackifying resin is one or more of coumarone-indene resin, C5, C9, C5/C9 petroleum resin, DCPD resin, alkyl phenolic resin and xylene resin.
8. Process for the preparation of bitumen according to any one of claims 1 to 7, characterised in that it comprises the following steps:
preparing materials: weighing the raw materials in parts by weight,
heating the matrix asphalt to the temperature of 120-150 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing 3-6 times at a high speed by using a shearing machine or grinding 3-6 times by using a colloid mill in a mixing tank at the temperature of 140-160 ℃ to obtain a pretreatment substance A;
transferring the pretreatment substance A to a storage tank to develop for 2-5 hours to obtain a development substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 180 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 25-40min to obtain a mixture C;
stirring the mixture C at a constant temperature for 25-50min at a stirring speed of 600-800r/min, and standing for 3-5 hours after stirring is completed to obtain the asphalt.
9. A process for the preparation of bitumen as claimed in claim 8, comprising the following steps:
preparing materials: weighing the raw materials in parts by weight,
heating the matrix asphalt to 135 ℃ to obtain high-temperature asphalt;
adding thermoplastic rubber and tackifying resin into high-temperature asphalt, and shearing for 5 times at a high speed by using a shearing machine or grinding for 5 times by using a colloid mill in a mixing tank at the temperature of 150 ℃ to obtain a pretreated substance A;
transferring the pretreatment substance A to a storage tank to develop for 4 hours to obtain a developmental substance;
putting the developmental substances into a reaction kettle, simultaneously adding waste rubber powder, waste plastics, a stabilizer and a filler into the reaction kettle, heating to 165 ℃, and uniformly mixing and stirring to obtain a mixture B;
uniformly stirring the defoaming agent and the mixture B, and placing the mixture B into a vacuum drying oven to remove bubbles for 35min to obtain a mixture C;
and stirring the mixture C for 35min at a constant temperature, wherein the stirring speed is 700r/min, and standing for 3 hours after the stirring is finished to obtain the asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011180287.2A CN112280321A (en) | 2020-10-29 | 2020-10-29 | Asphalt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011180287.2A CN112280321A (en) | 2020-10-29 | 2020-10-29 | Asphalt and preparation method thereof |
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| CN112280321A true CN112280321A (en) | 2021-01-29 |
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| CN202011180287.2A Pending CN112280321A (en) | 2020-10-29 | 2020-10-29 | Asphalt and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113402892A (en) * | 2021-06-22 | 2021-09-17 | 哈尔滨金英建材有限公司 | Building rapid-setting repairing material and preparation system and preparation method thereof |
| CN113604061A (en) * | 2021-07-30 | 2021-11-05 | 海南恒建沥青路面有限公司 | Anti-cracking asphalt and preparation method thereof |
| CN115044218A (en) * | 2022-07-12 | 2022-09-13 | 南通交融建设工程有限公司 | High-performance asphalt mixture and preparation method thereof |
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| CN113402892A (en) * | 2021-06-22 | 2021-09-17 | 哈尔滨金英建材有限公司 | Building rapid-setting repairing material and preparation system and preparation method thereof |
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Application publication date: 20210129 |