CN113861703B - Wheel-sticking-free asphalt material and preparation method thereof - Google Patents
Wheel-sticking-free asphalt material and preparation method thereof Download PDFInfo
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- CN113861703B CN113861703B CN202010622399.2A CN202010622399A CN113861703B CN 113861703 B CN113861703 B CN 113861703B CN 202010622399 A CN202010622399 A CN 202010622399A CN 113861703 B CN113861703 B CN 113861703B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2495/00—Bituminous materials, e.g. asphalt, tar or 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
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
- C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The wheel-sticking-free asphalt material comprises the following substances in parts by mass: 50-65 parts of asphalt, 3-5 parts of additive A, 2-4 parts of additive B, 1-3 parts of asphalt emulsifier, 0.1-3 parts of emulsion stabilizer, pH value regulator and water. Wherein the additive A is one or the combination of two substances of ethylene bisstearic acid amide and ethylene bisoleic acid amide; the additive B is boron mud powder; the asphalt emulsifier is a composite emulsifier which is compounded by alkylamine emulsifier and quaternary ammonium salt emulsifier. The additive in the wheel-sticking-free asphalt material can ensure that the asphalt does not have the wheel sticking phenomenon under the environment of 60 ℃ due to the synergistic effect, and has better storage stability.
Description
Technical Field
The invention belongs to the field of petroleum asphalt, and mainly relates to a wheel-sticking-free asphalt material and a preparation method thereof.
Background
In road construction and maintenance engineering, a process of spreading a sticky layer material is usually adopted between adjacent structural layers to promote an integral stressed structure to be formed between the layers, so that the problems of interlayer structure pushing, hugging and the like caused by traffic load are reduced, and the durability of the pavement is improved.
The adhesive layer materials on the market at present are various in variety, and the summary mainly includes four types: coal tar, cutback asphalt, emulsified asphalt and modified emulsified asphalt. The emulsified asphalt and the modified emulsified asphalt do not need to be heated during construction, have small pollution to the environment, are labor-saving and labor-saving, are widely concerned, and are main varieties for key research and wide application of the existing asphalt pavement adhesive layer materials.
In the actual work progress, current glutinous layer material, after the spread is accomplished, the breakdown of emulsion speed is slow, and early strength is low, influences the construction process, even if the complete breakdown of emulsion of glutinous layer material, and pitch has condensed completely, still very easily adheres to asphalt paver and other road equipment tires that generate heat, causes the damage of tie coat, has destroyed the homogeneity and the cohesiveness on glutinous layer, has reduced bonding efficiency, and then influences the durability on road surface. Therefore, the problem that the current adhesive layer material adheres to the wheel is always an unavoidable problem for construction units.
The invention aims to provide a wheel-sticking-free asphalt material and a preparation method thereof, which are used for interlayer bonding of road construction, have simple process, low energy consumption, low requirement on emulsification equipment, high demulsification speed, wheel-sticking resistance in the construction process, and improve the construction efficiency and the construction quality.
Disclosure of Invention
The invention provides a wheel-sticking-free asphalt material and a preparation method thereof.
The wheel-sticking-free asphalt material comprises the following substances in parts by mass: 50-65 parts of asphalt, 3-5 parts of additive A, 2-4 parts of additive B, 1-3 parts of asphalt emulsifier, 0.1-3 parts of emulsion stabilizer, pH value regulator and water.
Wherein, the asphalt is one or the mixture of two substances of heavy traffic No. 70 asphalt and No. 90 asphalt.
Wherein, the additive A is one or two of ethylene bis-stearic acid amide and ethylene bis-oleic acid amide.
Wherein the additive B is boron mud powder.
The asphalt emulsifier is a composite emulsifier and is formed by compounding an alkylamine emulsifier and a quaternary ammonium salt emulsifier.
Wherein the alkylamine emulsifier is one or more of bistrimethyloctadecylamine, hexadecylamine or octadecylamine.
Wherein the quaternary ammonium salt emulsifier is one or more of octadecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, octadecyl dimethyl benzyl ammonium chloride, hexadecyl pyridine cation ammonium chloride, and tetradecyl amidopropyl dimethyl benzyl ammonium chloride.
Wherein the mass ratio of the alkylamine emulsifier to the quaternary ammonium salt emulsifier is 1.
Wherein, the emulsion stabilizer is one or more of calcium chloride, magnesium chloride, sodium carboxymethyl cellulose, polyacrylamide and polyvinyl alcohol.
Wherein the pH value regulator is hydrochloric acid.
The invention also discloses a preparation method of the wheel-sticking-free asphalt material, which comprises the following steps:
(1) Heating 50-65 parts of asphalt to a molten state, adding 3-5 parts of additive A, heating to 160-170 ℃, stirring at a constant temperature for 10-20 minutes, and adding 2-4 parts of additive B to obtain an asphalt-based material;
(2) Mixing 1-3 parts of asphalt emulsifier, pH value regulator and water, heating to 50-70 ℃, adding into a colloid mill preheated to 50-70 ℃ (preferably 60 ℃) to grind for 1-5 minutes (preferably 1 minute), adding the asphalt-based material obtained in the step (1), continuing to grind for 1-5 minutes (preferably 2 minutes), adding 0.1-3 parts of emulsion stabilizer, continuing to grind for 1-5 minutes (preferably 2 minutes), stopping grinding, and continuing to stir to 50-70 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
The wheel-sticking-free asphalt material and the preparation method thereof have the following advantages:
(1) The additive in the wheel-sticking-free asphalt material can ensure that the wheel sticking phenomenon of the asphalt can not occur under the environment with the temperature of 60 ℃;
(2) In the preparation method of the wheel-sticking-free asphalt material, the emulsification step of the asphalt is more excellent than that of the traditional method for preparing the emulsified asphalt by adding the emulsifier and the stabilizer at one time and grinding at one time, so that the asphalt-based material which is difficult to emulsify can be quickly emulsified, and the prepared emulsified asphalt has better storage stability.
Detailed Description
The following parts are all parts by mass.
Example 1
Heating 60 parts of No. 70 asphalt and 5 parts of No. 90 asphalt to a molten state, adding 3 parts of ethylene bis-oleamide, heating to 160 ℃, stirring for 10 minutes at a constant temperature, and adding 2 parts of boron mud powder to obtain an asphalt-based material.
0.5 part of bistrimethyloctadecylamine, 1.5 parts of octadecyldimethylbenzylammonium chloride, a pH value regulator and water are mixed and heated to 50 ℃, added into a colloid mill preheated to 60 ℃ for grinding for 1 minute, then added with the asphalt-based material obtained by the method for continuous grinding for 2 minutes, added with 1 part of magnesium chloride and 0.5 part of sodium carboxymethylcellulose for continuous grinding for 2 minutes, and continuously stirred to 50 ℃ after grinding is stopped to obtain the wheel-bonding-free emulsified asphalt liquid.
Example 2
And heating 60 parts of No. 70 asphalt to a molten state, adding 4 parts of ethylene bis stearamide, heating to 170 ℃, stirring at a constant temperature for 20 minutes, and adding 4 parts of boron mud powder to obtain the asphalt-based material.
Mixing and heating 0.7 part of hexadecylamine, 2.1 parts of octadecyl trimethyl ammonium chloride, a pH value regulator and water to 60 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method for continuously grinding for 2 minutes, adding 2.5 parts of calcium chloride and 0.05 part of polyacrylamide for continuously grinding for 2 minutes, stopping grinding, and continuously stirring to 60 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
Example 3
And heating 40 parts of No. 70 asphalt and 10 parts of No. 90 asphalt to a molten state, adding 5 parts of ethylene bis stearamide, heating to 165 ℃, stirring for 15 minutes at a constant temperature, and adding 3 parts of boric sludge to obtain the asphalt-based material.
Mixing and heating 0.4 part of octadecylamine, 1.2 parts of tetradecylamidopropyl dimethyl benzyl ammonium chloride, a pH value regulator and water to 70 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method, continuously grinding for 2 minutes, adding 2 parts of calcium chloride and 1 part of polyvinyl alcohol, continuously grinding for 2 minutes, stopping grinding, and continuously stirring to 70 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
Example 4
Heating 50 parts of No. 70 asphalt and 5 parts of No. 90 asphalt to a molten state, adding 2 parts of ethylene bis stearamide and 2 parts of ethylene bis oleamide, heating to 165 ℃, stirring for 15 minutes at a constant temperature, and adding 4 parts of boron mud powder to obtain an asphalt-based material.
Mixing and heating 0.3 part of octadecylamine, 0.9 part of cetylpyridinium cation ammonium chloride, a pH value regulator and water to 60 ℃, adding the mixture into a colloid mill preheated to 55 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method for continuously grinding for 2 minutes, adding 0.1 part of polyacrylamide, continuously grinding for 2 minutes, stopping grinding, and continuously stirring to 55 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
Example 5
Heating 65 parts of No. 70 asphalt to a molten state, adding 3 parts of ethylene bis stearamide, heating to 165 ℃, stirring for 12 minutes at a constant temperature, and adding 2.5 parts of boron mud powder to obtain an asphalt-based material.
Mixing and heating 0.6 part of octadecylamine, 1.8 parts of cetylpyridinium cation ammonium chloride, a pH value regulator and water to 65 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method for continuously grinding for 2 minutes, adding 2 parts of calcium chloride and 0.08 part of polyacrylamide for continuously grinding for 2 minutes, stopping grinding, and continuously stirring to 60 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
Comparative example 1 preparation of emulsified asphalt by Once grinding without additive A and additive B and adding asphalt emulsifier, pH regulator and emulsion stabilizer all at once
Mixing 0.7 part of hexadecyl amine, 2.1 parts of octadecyl trimethyl ammonium chloride, 2.5 parts of calcium chloride, 0.05 part of polyacrylamide, a pH value regulator and water, heating to 60 ℃, adding the mixture into a colloid mill, adding 65 parts of No. 70 asphalt, and grinding for 5 minutes.
Comparative example 2-essentially the same as example 2, except that there is no additive B
Heating 60 parts of No. 70 asphalt to a molten state, adding 4 parts of ethylene bis stearamide, heating to 170 ℃, and stirring at a constant temperature for 20 minutes to obtain an asphalt-based material.
Mixing and heating 0.7 part of hexadecylamine, 2.1 parts of octadecyl trimethyl ammonium chloride, a pH value regulator and water to 60 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method for continuously grinding for 2 minutes, adding 2.5 parts of calcium chloride and 0.05 part of polyacrylamide for continuously grinding for 2 minutes, stopping grinding, and continuously stirring to 60 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
Comparative example 3-essentially the same as example 2, except that there is no additive A
And heating 60 parts of No. 70 asphalt to a molten state, adding 4 parts of boric sludge powder, heating to 170 ℃, and stirring at a constant temperature for 20 minutes to obtain an asphalt-based material.
Mixing and heating 0.7 part of hexadecylamine, 2.1 parts of octadecyl trimethyl ammonium chloride, a pH value regulator and water to 60 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method for continuously grinding for 2 minutes, adding 2.5 parts of calcium chloride and 0.05 part of polyacrylamide for continuously grinding for 2 minutes, stopping grinding, and continuously stirring to 60 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
Comparative example 4-basically, the same procedure as in example 2 was repeated, except that the asphalt emulsifier was a quaternary ammonium salt emulsifier, not a complex emulsifier composed of an alkylamine-based emulsifier and a quaternary ammonium salt-based emulsifier
And heating 60 parts of No. 70 asphalt to a molten state, adding 4 parts of ethylene bis stearamide, heating to 170 ℃, stirring at a constant temperature for 20 minutes, and adding 4 parts of boron mud powder to obtain the asphalt-based material.
Mixing and heating 2.8 parts of octadecyl trimethyl ammonium chloride, a pH value regulator and water to 60 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt base material obtained by the method for continuously grinding for 2 minutes, adding 2.5 parts of calcium chloride and 0.05 part of polyacrylamide, continuously grinding for 2 minutes, and continuously stirring to 60 ℃ after grinding is stopped to obtain the wheel-sticking-free emulsified asphalt liquid.
Comparative example 5-basically, the same procedure as in example 2 was repeated, except that the asphalt emulsifier, pH adjuster and emulsion stabilizer were added at one time and emulsified asphalt was prepared by grinding at one time
And heating 60 parts of No. 70 asphalt to a molten state, adding 4 parts of ethylene bis stearamide, heating to 170 ℃, stirring at a constant temperature for 20 minutes, and adding 4 parts of boron mud powder to obtain the asphalt-based material.
0.7 part of hexadecylamine, 2.1 parts of octadecyl trimethyl ammonium chloride, 2.5 parts of calcium chloride, 0.05 part of polyacrylamide, a pH value regulator and water are mixed and heated to 60 ℃, added into a colloid mill preheated to 60 ℃ for grinding for 1 minute, and then added with the asphalt-based material obtained by the method for continuous grinding for 4 minutes.
Comparative example 6-essentially the same procedure as in example 2 was followed, except that the stirring was not continued to 50-70 ℃ after the milling was stopped
And heating 60 parts of No. 70 asphalt to a molten state, adding 4 parts of ethylene bis stearamide, heating to 170 ℃, stirring at a constant temperature for 20 minutes, and adding 4 parts of boron mud powder to obtain the asphalt-based material.
Mixing and heating 0.7 part of hexadecylamine, 2.1 parts of octadecyl trimethyl ammonium chloride, a pH value regulator and water to 60 ℃, adding the mixture into a colloid mill preheated to 60 ℃ for grinding for 1 minute, adding the asphalt-based material obtained by the method, continuously grinding for 2 minutes, adding 2.5 parts of calcium chloride and 0.05 part of polyacrylamide, and continuously grinding for 2 minutes.
The properties of the asphalt materials obtained in the above examples and comparative examples were measured, and the results are shown in table 1.
TABLE 1 asphalt material test results without sticking wheel
As can be seen from the data in table 1,
(1) The asphalt material of the non-stick wheel prepared in the embodiments 1-5 of the invention has the advantages of good emulsification effect, good storage stability and no sticking to the wheel at high temperature.
(2) Comparative example 1 emulsified asphalt prepared from ordinary heavy traffic asphalt has unsatisfactory properties, manifested by sticky hands, high storage stability for 5 days, and poor storage stability.
(3) In comparative examples 2 and 3 in which the additives A and B were not added simultaneously and only one of the additives A or B was added, the emulsified asphalt prepared was poor in wheel non-sticking effect.
(4) For comparative example 4 using a single emulsifier, comparative example 5 using a conventional emulsification method (i.e., emulsified asphalt is prepared by adding asphalt emulsifier, pH adjuster and emulsion stabilizer at once and grinding at once), comparative example 6 where stirring is not continued after grinding: the emulsified asphalt prepared in comparative examples 4 to 6 had a good wheel tack free effect, but the asphalt was difficult to emulsify, and the prepared emulsified asphalt had a high storage stability for 1 day and 5 days, and the storage stability was poor, i.e., insufficient emulsification.
Claims (8)
1. The wheel-sticking-free asphalt material comprises the following substances in parts by mass: 50-65 parts of asphalt, 3-5 parts of additive A, 2-4 parts of additive B, 1-3 parts of asphalt emulsifier, 0.1-3 parts of emulsion stabilizer, pH value regulator and water; the additive A is one or the combination of two substances of ethylene bis stearamide and ethylene bis oleamide; the additive B is boron mud powder.
2. The non-wheel-sticking asphalt material as set forth in claim 1, wherein the asphalt is one or a mixture of heavy asphalt No. 70 and No. 90 asphalt.
3. The non-wheel-sticking asphalt material as set forth in claim 1, wherein said asphalt emulsifier is a composite emulsifier made by compounding an alkylamine type emulsifier and a quaternary ammonium salt type emulsifier.
4. The non-wheel-sticking asphalt material as claimed in claim 3, wherein the mass ratio of the alkylamine-based emulsifier to the quaternary ammonium-based emulsifier is 1.
5. The non-wheel-sticking asphalt material of claim 3 or 4, wherein the alkylamine-based emulsifier comprises one or more of bistrimethyloctadecylamine, hexadecylamine or octadecylamine; the quaternary ammonium salt emulsifier comprises one or more of octadecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, octadecyl dimethyl benzyl ammonium chloride, hexadecyl pyridine cation ammonium chloride, and tetradecyl amidopropyl dimethyl benzyl ammonium chloride.
6. The non-wheel-sticking asphalt material as set forth in claim 1, wherein the emulsion stabilizer comprises one or more of calcium chloride, magnesium chloride, sodium carboxymethylcellulose, polyacrylamide and polyvinyl alcohol.
7. The non-wheel-sticking asphalt material as set forth in claim 1, wherein said pH adjusting agent comprises hydrochloric acid.
8. A method for preparing a non-stick asphalt material as defined in any one of claims 1 to 7, comprising:
(1) Heating 50-65 parts by mass of asphalt to a molten state, adding 3-5 parts by mass of additive A, heating to 160-170 ℃, stirring at a constant temperature for 10-20 minutes, and adding 2-4 parts by mass of additive B to obtain an asphalt-based material;
(2) Mixing and heating 1-3 parts of asphalt emulsifier, pH value regulator and water to 50-70 ℃, adding the mixture into a colloid mill preheated to 50-70 ℃ for grinding for a certain time, adding the asphalt-based material obtained in the step (1) for continuously grinding for a certain time, adding 0.1-3 parts of emulsion stabilizer for continuously grinding for a certain time, stopping grinding, and continuously stirring to 50-70 ℃ to obtain the wheel-sticking-free emulsified asphalt liquid.
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| CN106630762A (en) * | 2015-11-02 | 2017-05-10 | 中国石油化工股份有限公司 | Warm mix polymer modified asphalt mixture and preparation method thereof |
| CN109626872A (en) * | 2018-12-25 | 2019-04-16 | 山东大学 | A kind of foamed asphalt and preparation method thereof of red mud-boron mud compounding foaming |
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| CN104761917B (en) * | 2014-01-02 | 2019-05-17 | 深圳海川新材料科技有限公司 | A kind of organic composite warm-mixed asphalt and preparation method thereof |
| CN104403335B (en) * | 2014-11-21 | 2017-10-17 | 江苏省交通科学研究院股份有限公司 | A kind of glutinous coating emulsified asphalt and preparation method thereof |
| CN106317518B (en) * | 2015-06-17 | 2018-07-03 | 中国石油化工股份有限公司 | Warm-mixed asphalt warm-mixing agent and its application process |
| CN109096988A (en) * | 2018-08-10 | 2018-12-28 | 鲍逸琴 | Novel not viscous wheel heated bitumen sticking layer oil and preparation method thereof |
| CN109437815B (en) * | 2018-12-25 | 2019-06-14 | 山东大学 | A kind of emulsified asphalt compounding red mud-boron mud filling and grouting material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106630762A (en) * | 2015-11-02 | 2017-05-10 | 中国石油化工股份有限公司 | Warm mix polymer modified asphalt mixture and preparation method thereof |
| CN109626872A (en) * | 2018-12-25 | 2019-04-16 | 山东大学 | A kind of foamed asphalt and preparation method thereof of red mud-boron mud compounding foaming |
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