CN105524295A - Foaming agent for foam-warm-mix asphalt and preparation method thereof - Google Patents
Foaming agent for foam-warm-mix asphalt and preparation method thereof Download PDFInfo
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- CN105524295A CN105524295A CN201610025513.7A CN201610025513A CN105524295A CN 105524295 A CN105524295 A CN 105524295A CN 201610025513 A CN201610025513 A CN 201610025513A CN 105524295 A CN105524295 A CN 105524295A
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- foam
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- asphalt
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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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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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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- 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
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- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a foaming agent for foam-warm-mix asphalt, and belongs to the technical field of foam-warm-mix asphalt pavement. The foaming agent is prepared from the following components in parts by weight: 1.5-5.0 parts of cationic surfactant, 0.1-0.5 part of a stabilizing agent, 0.01-0.10 part of a regulating agent and 94-98 parts of water. The invention further discloses a method for preparing the foaming agent for foam-warm-mix asphalt. The foam-warm-mix asphalt prepared by the foaming agent has the advantages of high expansion ratio, long half-life, stable performance and the like; and the preparation method of the foaming agent is simple in steps and easy to operate, and has good practicality.
Description
Technical field
Patent of the present invention belongs to foam warm-mixed asphalt pavement technique field, is specifically related to a kind of foam warm-mixed asphalt whipping agent and preparation method thereof.
Background technology
The exhaustion day by day of environmental pollution and the energy is two large focuses of current global common concern, and along with people are to the raising day by day of environmental protection, health perception, " environmental protection, green, low-carbon (LC) " technology is a megatrend of socio-economic development.Hot-mix asphalt mixture in construction process because mix high temperature construction can produce a large amount of poisonous and harmful flue gases, consume a large amount of energy, shortcoming such as release greenhouse gases etc., have concurrently for this reason reduce production energy consumption, the warm mix asphalt technologies that reduces the advantage such as waste gas and dust discharge develops rapidly as the very promising brand-new material in one, asphalt pavement material field.Warm-Mix Bitumen Mixture reduces 20-30 DEG C than the construction temperature of hot-mix asphalt mixture, but can also keep the use properties of hot-mix asphalt mixture, enjoys favor for this reason.
At present comparatively ripe warm mix technology has following three kinds: foam warm mix technology, organic glutinous warm mix technology is fallen, glutinous warm mix technology falls in chemistry.Wherein the green warm mix technology of the not any chemical stabilizer of admixture, cost reduction---foam warm-mixed asphalt is more and more by the concern of experts and scholars.So-called foam warm-mixed asphalt is a certain proportion of water of admixture in the pitch of sensing high temperature, pitch is sharply vaporized, rapid spatial expansion, foam generated pitch, pitch sprays into the form of foam asphalt and mixes cylinder and become asphalt with aggregate blending, and now the ratio of viscosities pitch of foam asphalt is much lower, and workability increases greatly for this reason, fully can wrap at a lower temperature and gather materials, and then reduce the mix temperature of asphalt.
For foam warm-mixed asphalt, two important performance perameters are rate of expansion and transformation period, and it has very important impact to the mix of plate form rubber and construction process.In order to improve the pavement performance of its compound, the rate of expansion of foam warm-mixed asphalt should should extend large as much as possible, transformation period as far as possible.The transformation period is not less than 10s simultaneously to require rate of expansion to be not less than 10 times in " asphalt highway regeneration techniques specification " (JTJF41-2008).But rate of expansion and the transformation period of the foam warm-mixed asphalt at present prepared by simple Water blown are all relatively little.In prior art, CN102505608B proposes a kind of preparation method of foam asphalt, and the rate of expansion of prepared foam asphalt is not less than 10, and the transformation period is not less than 8s, by adjustment asphalt foaming temperature and water consumption be also difficult to be improved significantly.CN104448865A has prepared a kind of foaming modification bituminous composition, and wherein containing the component such as asphalt modifier, emulsifying agent, the rate of expansion of prepared foam asphalt is the highest can to 12 times, and the transformation period grows to 10s most.For this reason simple to improve the ability of rate of expansion and transformation period with Water blown be limited, also needs the whipping agent adding the interfacial tension reducing water-in-oil bubble in foam asphalt to improve foaming effect simultaneously, less to the research of this aspect at present.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of foam warm-mixed asphalt whipping agent; Another object of the present invention is to provide a kind of preparation method of foam warm-mixed asphalt whipping agent.
Technical scheme: for achieving the above object, the present invention adopts following technical scheme:
A kind of foam warm-mixed asphalt whipping agent, it comprises the composition of following weight fraction: cats product: 1.5-5.0 part, stablizer: 0.1-0.5 part, conditioning agent: 0.01-0.10 part, water: 94-98 part.
Described cats product is one or several the mixture in Dodecyl trimethyl ammonium chloride, tetrahydroglyoxaline system tensio-active agent, polyacrylamide, octadecyl amido-2-hydroxypropyl-triethyl ammonium chloride.
Described tetrahydroglyoxaline system tensio-active agent is one or several the mixture in dodecyl carboxymethyl sodium form tetrahydroglyoxaline acetate, 1-N-hydroxyethyl-2-alkyl imidazoline quaternary ammonium salt, 2-alkyl-N-hydroxyethyl-N-hydroxypropyl sulfo group tetrahydroglyoxaline.
Described stablizer is CaCl
2, Natvosol, one or several mixture in xylogen.
Described conditioning agent is hydrochloric acid.
Described conditioning agent regulates whipping agent pH to be 2 ~ 4.
A preparation method for foam warm-mixed asphalt whipping agent, by cats product, stablizer, conditioning agent and water, is mixed to get warm-mixed asphalt whipping agent stirring in proportion.
Inventive principle: for foam warm-mixed asphalt, its rate of expansion and the performance impact of transformation period to foam asphalt larger.Wherein the reason of breaking of foam is mainly divided into following two aspects, is first the speed having decreased beyond the recovery of foam surface tension force of the temperature and pressure in foam, and then lather collapse; Moreover be pressure in foam when having exceeded its capillary limit, foam also can break.In the water-in-oil system that formed of foam asphalt, the size of bubble surface tension force is a very crucial index for this reason.
Large quantifier elimination finds, two-phase interface stable existence be enable must to reduce its surface tension, and the present invention sets about from the surface tension reducing bubble the foaming character improving foam asphalt for this reason.Under technique for fixing condition, the surface tension of the foam that simple Water blown is formed is certain, and then the rangeability of its rate of expansion and transformation period is little.The comparatively effective means of current reduction water-oil interface surface tension add a certain amount of tensio-active agent, research produces advantageously foam after finding to add tensio-active agent in system, and the foam formed is more stable, the simultaneously stablizer of its stabilization of admixture part and conditioning agent in system, prepared foam warm-mixed asphalt has the features such as rate of expansion is high, long half time, stable performance, and method is simple, easy handling, cost is low, has good popularizing application prospect in Practical Project.
Beneficial effect: compared with prior art, a kind of foam warm-mixed asphalt whipping agent of the present invention, the foam warm-mixed asphalt prepared by this whipping agent has that rate of expansion is high, long half time, steady performance; The preparation method of foam warm-mixed asphalt whipping agent of the present invention, step is simple, and easy handling, possesses good practicality.
Embodiment
Describe foam warm-mixed asphalt whipping agent of the present invention and preparation method thereof in detail below in conjunction with embodiment, then use corresponding whipping agent to prepare foam warm-mixed asphalt, its foaming character is evaluated.But the present invention is not limited to following examples.
A kind of foam warm-mixed asphalt whipping agent, by weight, raw material composition comprises: cats product: 1.5-5.0 part, stablizer: 0.1-0.5 part, conditioning agent: 0.01-0.10 part, water: 94-98 part.
Cats product is one or several the mixture in Dodecyl trimethyl ammonium chloride, tetrahydroglyoxaline system tensio-active agent, polyacrylamide, octadecyl amido-2-hydroxypropyl-triethyl ammonium chloride.Tetrahydroglyoxaline system tensio-active agent is one or several the mixture in dodecyl carboxymethyl sodium form tetrahydroglyoxaline acetate, 1-N-hydroxyethyl-2-alkyl imidazoline quaternary ammonium salt, 2-alkyl-N-hydroxyethyl-N-hydroxypropyl sulfo group tetrahydroglyoxaline.
Stablizer is CaCl
2, Natvosol, one or several mixture in xylogen.Conditioning agent is the dilute hydrochloric acid of adjustment whipping agent pH value.Water is tap water.
A preparation method for foam warm-mixed asphalt whipping agent, by cats product, stablizer, conditioning agent and water, is mixed to get warm-mixed asphalt whipping agent according to aforementioned proportion stirring.
In embodiment, the character of matrix pitch used and SBS modifying asphalt is in table 1.
Table 1 matrix pitch fundamental property index
By method described in this patent and step, prepared 4 foam warm-mixed asphalt samples respectively, concrete formula measurement result is shown in embodiment 1-4, and to prepare foam warm-mixed asphalt evaluation result with Water blown for comparative example.
Embodiment 1
According to ratio of quality and the number of copies Dodecyl trimethyl ammonium chloride and 2.0 parts, CaCl
20.3 part, hydrochloric acid 0.02 part and 97.68 parts, water is mixed with whipping agent; Matrix pitch is heated to 160 DEG C, and whipping agent takes 2.0wt% (inner blending method), prepares foam asphalt under certain conditions, and its performance index are shown in Table 2.
Embodiment 2
Whipping agent is mixed with according to 3.5 parts, ratio of quality and the number of copies tetrahydroglyoxaline system tensio-active agent, Natvosol 0.2 part, hydrochloric acid 0.03 part and 96.25 parts, water; Matrix pitch is heated to 150 DEG C, and whipping agent takes 3.0wt% (inner blending method), prepares foam asphalt under certain conditions, and its performance index are shown in Table 2.
Embodiment 3
Whipping agent is mixed with according to ratio of quality and the number of copies tetrahydroglyoxaline system's tensio-active agent and polyacrylamide 1.5 parts, Natvosol 0.3 part, hydrochloric acid 0.02 part and 96.65 parts, water; Matrix pitch is heated to 160 DEG C, and whipping agent takes 2.5% (inner blending method), prepares foam asphalt under certain conditions, and its performance index are shown in Table 2.
Embodiment 4
Whipping agent is mixed with according to ratio of quality and the number of copies octadecyl amido-2-hydroxypropyl-triethyl ammonium chloride and polyacrylamide 2.0 parts, Natvosol 0.4 part, hydrochloric acid 0.03 part and 95.57 parts, water; SBS modifying asphalt is heated to 170 DEG C, and whipping agent takes 3.0wt% (inner blending method), prepares foam asphalt under certain conditions, and its performance index are shown in Table 2.
Comparative example 1
Matrix pitch is heated to 160 DEG C, and water takes 2.0wt% (inner blending method), prepares foam asphalt under certain conditions, and its performance index are shown in Table 2.
Comparative example 2
SBS modifying asphalt is heated to 170 DEG C, and water takes 3.0wt% (inner blending method), prepares foam asphalt under certain conditions, and its performance index are shown in Table 2.
The leading indicator test result of prepared foam warm-mixed asphalt is in table 2.
Table 2 foam warm-mixed asphalt experimental data
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 |
| Rate of expansion/% | 15 | 13 | 16 | 12 | 10 | 8 |
| Transformation period/s | 36 | 39 | 30 | 37 | 11 | 15 |
From above specific examples and evaluation result, the rate of expansion of the foam warm-mixed asphalt prepared by whipping agent adopting the present invention to prepare and transformation period are far away higher than regular foam pitch.On the whole, use its foaming character of foam asphalt prepared by whipping agent better, and then the property indices of foam asphalt can be improved.This whipping agent can be applied to the preparation of the asphalt foam warm-mixed asphalts such as ordinary road petroleum pitch, SBS modifying asphalt, rubber asphalt.
Claims (7)
1. a foam warm-mixed asphalt whipping agent, is characterized in that: it comprises the composition of following weight fraction: cats product: 1.5-5.0 part, stablizer: 0.1-0.5 part, conditioning agent: 0.01-0.10 part, water: 94-98 part.
2. a kind of foam warm-mixed asphalt whipping agent according to claim 1, is characterized in that: described cats product is one or several the mixture in Dodecyl trimethyl ammonium chloride, tetrahydroglyoxaline system tensio-active agent, polyacrylamide, octadecyl amido-2-hydroxypropyl-triethyl ammonium chloride.
3. a kind of foam warm-mixed asphalt whipping agent according to claim 2, is characterized in that: described tetrahydroglyoxaline system tensio-active agent is one or several the mixture in dodecyl carboxymethyl sodium form tetrahydroglyoxaline acetate, 1-N-hydroxyethyl-2-alkyl imidazoline quaternary ammonium salt, 2-alkyl-N-hydroxyethyl-N-hydroxypropyl sulfo group tetrahydroglyoxaline.
4. a kind of foam warm-mixed asphalt whipping agent according to claim 1, is characterized in that: described stablizer is CaCl
2, Natvosol, one or several mixture in xylogen.
5. a kind of foam warm-mixed asphalt whipping agent according to claim 1, is characterized in that: described conditioning agent is hydrochloric acid.
6. a kind of foam warm-mixed asphalt whipping agent according to claim 5, is characterized in that: described conditioning agent regulates whipping agent pH to be 2 ~ 4.
7. the preparation method of a kind of foam warm-mixed asphalt whipping agent in claim 1 ~ 6 described in any one, is characterized in that: by cats product, stablizer, conditioning agent and water, is mixed to get warm-mixed asphalt whipping agent stirring in proportion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610025513.7A CN105524295B (en) | 2016-01-13 | 2016-01-13 | A kind of foam warm-mixed asphalt foaming agent and preparation method thereof |
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| CN201610025513.7A CN105524295B (en) | 2016-01-13 | 2016-01-13 | A kind of foam warm-mixed asphalt foaming agent and preparation method thereof |
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| CN105524295B CN105524295B (en) | 2018-07-24 |
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Cited By (7)
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| CN106187283A (en) * | 2016-07-20 | 2016-12-07 | 绍兴职业技术学院 | A kind of low-carbon energy-saving assembled architecture warming plate and preparation method thereof |
| CN106496677A (en) * | 2016-12-13 | 2017-03-15 | 江苏天诺道路材料科技有限公司 | Asphalt foaming agent and preparation method thereof |
| CN108504113A (en) * | 2018-04-10 | 2018-09-07 | 重庆交通大学 | SBS is modified foam warm-mixed asphalt 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 |
| CN111171587A (en) * | 2020-01-03 | 2020-05-19 | 武汉市市政路桥有限公司 | Self-compaction asphalt cement and preparation method thereof |
| CN114395262A (en) * | 2021-12-28 | 2022-04-26 | 青岛东方雨虹建筑材料有限公司 | Foaming modified asphalt waterproof coiled material and preparation method thereof |
| CN116854406A (en) * | 2023-07-07 | 2023-10-10 | 常熟路桥工程有限公司 | Foaming warm mix asphalt mixture and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106187283A (en) * | 2016-07-20 | 2016-12-07 | 绍兴职业技术学院 | A kind of low-carbon energy-saving assembled architecture warming plate and preparation method thereof |
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| 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 |
| CN111171587A (en) * | 2020-01-03 | 2020-05-19 | 武汉市市政路桥有限公司 | Self-compaction asphalt cement and preparation method thereof |
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| CN116854406A (en) * | 2023-07-07 | 2023-10-10 | 常熟路桥工程有限公司 | Foaming warm mix asphalt mixture and preparation method thereof |
| CN116854406B (en) * | 2023-07-07 | 2024-03-26 | 常熟路桥工程有限公司 | Foaming warm mix asphalt mixture and preparation method thereof |
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| CN105524295B (en) | 2018-07-24 |
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Effective date of registration: 20190517 Address after: 226100 Room 3, No. 268 Binggang Avenue, Binjiang Street, Haimen City, Nantong City, Jiangsu Province Patentee after: Nantong Xinzhi Creation Material Technology Co.,Ltd. Address before: No. 8, West Road, Buddha city, Jiangning District, Nanjing, Jiangsu Patentee before: HOHAI University |