CN108623200A - It is a kind of to be used to wrap up in oil type salt and preparation method thereof from snow-melting asphalt pavement - Google Patents
It is a kind of to be used to wrap up in oil type salt and preparation method thereof from snow-melting asphalt pavement Download PDFInfo
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- CN108623200A CN108623200A CN201810463372.6A CN201810463372A CN108623200A CN 108623200 A CN108623200 A CN 108623200A CN 201810463372 A CN201810463372 A CN 201810463372A CN 108623200 A CN108623200 A CN 108623200A
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- Prior art keywords
- salt
- snow
- oil type
- coupling agent
- wrapping
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
It is provided by the invention a kind of for wrapping up in oil type salt and preparation method thereof from snow-melting asphalt pavement, including porous material, salt, coupling agent solution and hydrophobing agent, wherein, the mass ratio between porous material, salt, coupling agent solution and hydrophobing agent is (55~70)：(20~30)：(3~5)：(6~10)；The salt is added to by way of substituting fine aggregate in asphalt, it can be in winter during snowfall, reduce bituminous paving accumulated snow freezing point, realize active deicing or snow melting, and the salt continuous action time is long, with good durability, the bituminous paving of making has good pavement performance, has broad application prospects；Preparation method provided by the invention is simple for process, economic cost is low, can effectively improve the salinization composition granule of bituminous paving deicing or snow melting performance.
Description
Technical field
The invention belongs to highway maintenance fields, and in particular to it is a kind of for from snow-melting asphalt pavement wrap up in oil type salt and
Preparation method.
Background technology
In High aititude mountain highway, bend is more, the temperature difference is big, and in winter, road snow easily freezes and the duration is long, freezes
Coefficient of road adhesion reduces under state, and vehicle travels frictional resistance and reduces, and braking effect is greatly lowered, and vehicle operating is extremely unstable
It is fixed, safety factor of travel is reduced, vehicular traffic safety accident is be easy to cause.
During Winter Snow, our generally uses dispense deicing salt, artificial and snow removal with machine, inhibit icing pavement technique,
Salt pavement technique, heating power snow melt technology etc. alleviate ice disaster.But manually efficiency of cleaning snow is low, influences traffic；Machinery
Snow removing cannot remove accumulated snow comprehensively, and there are still ice sheets to influence traffic safety for road surfaces；Elasticity is mated formation with rough type technology only simultaneously
Freeze in the laying initial stage limited inhibition ice and snow of energy, and easily cause road table particle missing, and secondary deicing is costly；Heating power snow melt
Technique building technology is complicated, involves great expense, unsuitable large-scale promotion application.
Salt pavement technique relies on salinity to be constantly precipitated under the collective effect of moisture and vehicular load, reduces road surface product
Traffic jam is effectively relieved to achieve the effect that road surface active deicing or snow melting in snow ice point, it is ensured that traffic safety, active are melted
The technical principle of snow is of increased attention.
The development of the country such as Germany, Switzerland is more early to salt Research on Bituminous Pavement, and Germany is more by the way that chloride to be added to
It in the natural material of hole, is analyzed by salt and reaches snow melt effect, but since the salt of addition is mostly with hygroscopic chlorine
Compound, therefore in store and transport etc. after there are larger difficulties, and hygroscopicity causes road surface to be in moisture state, antiskid
Property reduce, influence traffic safety；Switzerland scholar develops new material V-260 and V- by the hydrophobicity of improvement salt
175, the two can effectively reduce road surface freezing point to -20 DEG C, -10 DEG C respectively.Japan is on the basis of German deicing salt, by changing
The hygroscopicity of kind chloride, salinity speed of separating out, and take and chloride is adjusted to the measures such as acetate type salt, in nineteen eighty-three day
This carries out technological cooperation with Germany and develops Mafilon products.
China about technique research than later, 2008 just start in bituminous paving using snow melt press down ice material
MFL is introduced the country, established production line in Taian Shandong in 2013 and put into effect by material, China in 2009, and 2014 develop
Mafilon of new generation.Some snow melts suppression ice material is also developed while absorbing foreign technology, product has ICB, middle hand over to resist
Dark ice filler, IGD (Iceguard) etc..
Above-mentioned salt pavement technique improves coefficient of road adhesion, reduces snow removing amount during Winter Snow, section
Human and material resources input is saved, while deicing or snow melting is efficient, construction technology is simple, but there are cost height, Thaw performances
The problem of being difficult to reach counterbalance effect with pavement performance.
Invention content
The purpose of the present invention is to provide a kind of for wrapping up in oil type salt and preparation method thereof from snow-melting asphalt pavement,
Solving existing salt pavement technique, there are cost height, Thaw performance and pavement performances to be difficult to reach counterbalance effect
The problem of.
In order to achieve the above object, the technical solution adopted by the present invention is：
It is provided by the invention a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, including porous material, salt,
Coupling agent solution and hydrophobing agent, wherein the mass ratio between porous material, salt, coupling agent solution and hydrophobing agent is (55
~70)：(20~30)：(3~5)：(6~10).
Preferably, the porous material is honeycomb structure.
Preferably, the porous material is slag.
Preferably, the salt is sodium chloride.
Preferably, the coupling agent solution is by γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water
It is formed with ethyl alcohol, wherein γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water and ethyl alcohol are molten in coupling agent
Mass percent is 1 in liquid:5:9.
Preferably, the hydrophobing agent is polymethyl siloxane.
A kind of preparation method for wrapping up in oil type salt for from snow-melting asphalt pavement includes the following steps：
Step 1, porous material and salt be mixed and stirred for uniformly, obtaining mixture；
Step 2, coupling agent solution is added in mixture and stirs evenly, obtains mixed slurry；Wherein, porous material,
The mass ratio of salt and coupling agent solution is (55~70)：(20~30)：(3~5)；
Step 3, hydrophobing agent is added into mixed slurry and stirs evenly, obtains semi-finished product；Wherein, hydrophobing agent and coupling agent
The mass ratio of solution is (6~10)：(3~5)；
Step 4, the semi-finished product obtained in step 3 are placed in incubator and are aged 30-60min, obtain wrapping up in oil type salinization
Object.
Preferably, in step 1, before being mixed porous material and salt, placement is dried in an oven,
In, baking temperature is 160 DEG C, keeps the temperature 3-6h.
Preferably, in step 2, the coupling agent solution is by γ-aminopropyl triethoxysilane or methyl trimethoxy oxygroup
Silane, water and ethyl alcohol composition, wherein γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water and ethyl alcohol are in idol
It is 1 to join mass percent in agent solution:5:9.
Preferably, in step 4 gained wrap up in oil type salt when in use, be placed in grinder and be ground, obtain
The deicing salt of grain size≤0.075mm.
Compared with prior art, the beneficial effects of the invention are as follows：
Provided by the invention a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, the salt is by substituting thin collection
The mode of material is added in asphalt, can reduce bituminous paving accumulated snow freezing point in winter during snowfall, realize actively
Deicing or snow melting, and the salt continuous action time is long, has good durability, the bituminous paving of making is with good
Pavement performance has broad application prospects.
Further, a kind of preparation method work for wrapping up in oil type salt for from snow-melting asphalt pavement provided by the invention
Skill is simple, economic cost is low, can effectively improve the salinization composition granule of bituminous paving deicing or snow melting performance.
Specific implementation mode
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content be not limited solely to the embodiment.
It is provided by the invention a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, including porous material, salt,
Coupling agent solution and hydrophobing agent, wherein porous material 55%~70%, salt 20~30%, coupling agent solution 3~5%,
Hydrophobing agent 6~10%.
Porous material used is honeycomb structure, which can fully wrap up salinity, preferably slag, the slag
Specific surface area is much larger than slag, and grindability is better than slag；The full water ultimate compressive strength of slag is more than 120MPa, meets
Pipeline material mechanical strength index request；Stability is gradually increased with free calcium oxide (f-CaO) constantly resolution.
Salt used is sodium chloride, and the freezing point of sodium chloride is minimum in salinization composition granule under same concentrations, can effectively inhibit
Bituminous paving freezes during Winter Snow, and rear reduction deicing difficulty icy on road.
The coupling agent solution is by γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water and ethanol group
At wherein three's mass percent in coupling agent solution is 1:5:9.
Specifically：Functional group there are two tools in coupling agent solute molecule structure, respectively organic-philic and close Inorganic functional groups,
Close Inorganic functional groups can promote the bonding of coupling agent and slag, the polymer that organic-philic functional group generates after coupling agent hydrolysis
Hydrophobing agent can be effectively bonded, the effect of water is that hydrolysis occurs with coupling agent, and ethyl alcohol is used for dissolved dilution γ-aminopropyl three
Ethoxysilane or methyltrimethoxysilane, and so that its hydrolysis is generated network shaped polymer and be uniformly dispersed in slag
Surface.
Hydrophobing agent used is polymethyl siloxane, which is 112 °, and surface tension is low, hydrophobic moisture resistance
Good, it acts as reduce salinity precipitation rate and amount of precipitation, it is ensured that the durability of the deicing salt, hydrophobing agent and coupling agent solution
Mass ratio is 2:1.
A kind of preparation method for wrapping up in oil type salt for from snow-melting asphalt pavement includes the following steps：
Step 1, porous material and salt be mixed and stirred for uniformly, obtaining mixture；
Step 2, coupling agent solution is added in mixture and stirs evenly, obtains mixed slurry；Wherein, porous material,
The mass ratio of salt and coupling agent solution is (55~70)：(20~30)：(3~5)；
Step 3, hydrophobing agent is added into mixed slurry and stirs evenly, obtains semi-finished product；Wherein, hydrophobing agent and coupling agent
The mass ratio of solution is (6~10)：(3~5)；
Step 4, the semi-finished product obtained in step 3 are placed in incubator and are aged 30-60min, obtain wrapping up in oil type salinization
Object.
Preferably, it in step 1, before being mixed porous material and salt, needs to place and dry in an oven,
Wherein, baking temperature is 160 DEG C, keeps the temperature 3-6h.
It wraps up in oil type salt when in use, needs to be placed in grinder and be ground, obtain melting for grain size≤0.075mm
Avenge agent.
Embodiment one：
(1) raw materials such as slag and sodium chloride 3-6 hours are kept the temperature at 160 DEG C to be dried for standby；
(2) γ-aminopropyl triethoxysilane or methyltrimethoxysilane, second alcohol and water are prepared into coupling in proportion
Agent solution is spare；
(3) dry slag, sodium chloride are put into mix and stir and stir 10-30min in pot, ensure mixture uniform mixing, salt
Dividing can be well into slag, and the mass ratio of slag, sodium chloride and coupling agent solution is 70:20:3.3；
(4) coupling agent solution is added in uniformly mixed mixture, stirs 10-30min so that coupling agent solution can
It is contacted as much as possible with mixture；
(5) hydrophobing agent is added and stirs 10-30min so that hydrophobing agent preferably wraps under coupling agent cementation mixed
It closes and expects surface, the mass ratio of hydrophobing agent and coupling agent solution is 6.7:3.3；
(6) mixture of preparation is put into incubator and is aged 30-60min, it is therefore an objective to so that mixture is uniformly mixed, improve mixed
Close the visco-plasticity of material, while the volatilization of accelerating alcohol；
(7) it adds mixture into grinder to be ground, the deicing salt of preparation≤0.075mm particle sizes.
Embodiment two：
(1) raw materials such as slag and sodium chloride 3-6 hours are kept the temperature at 160 DEG C to be dried for standby；
(2) γ-aminopropyl triethoxysilane or methyltrimethoxysilane, second alcohol and water are prepared into coupling in proportion
Agent solution is spare；
(3) dry slag, sodium chloride are put into mix and stir and stir 10-30min in pot, ensure mixture uniform mixing, salt
Dividing can be well into slag, and the mass ratio of slag, sodium chloride and coupling agent solution is 65:23:4；
(4) coupling agent solution is added in uniformly mixed mixture, stirs 10-30min so that coupling agent solution can
It is contacted as much as possible with mixture；
(5) hydrophobing agent is added and stirs 10-30min so that hydrophobing agent preferably wraps under coupling agent cementation mixed
It closes and expects surface, the mass ratio of hydrophobing agent and coupling agent solution is 2:1；
(6) mixture of preparation is put into incubator and is aged 30-60min, it is therefore an objective to so that mixture is uniformly mixed, improve mixed
Close the visco-plasticity of material, while the volatilization of accelerating alcohol；
(7) it adds mixture into grinder to be ground, the deicing salt of preparation≤0.075mm particle sizes.
Embodiment three：
(1) raw materials such as slag and sodium chloride 3-6 hours are kept the temperature at 160 DEG C to be dried for standby；
(2) γ-aminopropyl triethoxysilane or methyltrimethoxysilane, second alcohol and water are prepared into coupling in proportion
Agent solution is spare；
(3) dry slag, sodium chloride are put into mix and stir and stir 10-30min in pot, ensure mixture uniform mixing, salt
Dividing can be well into slag, and the mass ratio of slag, sodium chloride and coupling agent solution is 55:30:5；
(4) coupling agent solution is added in uniformly mixed mixture, stirs 10-30min so that coupling agent solution can
It is contacted as much as possible with mixture；
(5) hydrophobing agent is added and stirs 10-30min so that hydrophobing agent preferably wraps under coupling agent cementation mixed
It closes and expects surface, the mass ratio of hydrophobing agent and coupling agent solution is 1:2；
(6) mixture of preparation is put into incubator and is aged 30-60min, it is therefore an objective to so that mixture is uniformly mixed, improve mixed
Close the visco-plasticity of material, while the volatilization of accelerating alcohol；
(7) it adds mixture into grinder to be ground, the deicing salt of preparation≤0.075mm particle sizes.
Example IV：
(1) raw materials such as slag and sodium chloride 3-6 hours are kept the temperature at 160 DEG C to be dried for standby；
(2) γ-aminopropyl triethoxysilane or methyltrimethoxysilane, second alcohol and water are prepared into coupling in proportion
The spare % of agent solution；
(3) dry slag, sodium chloride are put into mix and stir and stir 10-30min in pot, ensure mixture uniform mixing, salt
Dividing can be well into slag, and the mass ratio of slag, sodium chloride and coupling agent solution is 65:26:3；
(4) coupling agent solution is added in uniformly mixed mixture, stirs 10-30min so that coupling agent solution can
It is contacted as much as possible with mixture；
(5) hydrophobing agent is added and stirs 10-30min so that hydrophobing agent preferably wraps under coupling agent cementation mixed
It closes and expects surface, the mass ratio of hydrophobing agent and coupling agent solution is 1:2；
(6) mixture of preparation is put into incubator and is aged 30-60min, it is therefore an objective to so that mixture is uniformly mixed, improve mixed
Close the visco-plasticity of material, while the volatilization of accelerating alcohol；
(7) it adds mixture into grinder to be ground, the deicing salt of preparation≤0.075mm particle sizes.
Embodiment five：
(1) raw materials such as slag and sodium chloride 3-6 hours are kept the temperature at 160 DEG C to be dried for standby；
(2) γ-aminopropyl triethoxysilane or methyltrimethoxysilane, second alcohol and water are prepared into coupling in proportion
Agent solution is spare；
(3) dry slag, sodium chloride are put into mix and stir and stir 10-30min in pot, ensure mixture uniform mixing, salt
Dividing can be well into slag, and the mass ratio of slag, sodium chloride and coupling agent solution is 60:25:5；
(4) coupling agent solution is added in uniformly mixed mixture, stirs 10-30min so that coupling agent solution can
It is contacted as much as possible with mixture；
(5) hydrophobing agent is added and stirs 10-30min so that hydrophobing agent preferably wraps under coupling agent cementation mixed
It closes and expects surface, the mass ratio of hydrophobing agent and coupling agent solution is 1:2；
(6) mixture of preparation is put into incubator and is aged 30-60min, it is therefore an objective to so that mixture is uniformly mixed, improve mixed
Close the visco-plasticity of material, while the volatilization of accelerating alcohol；
(7) it adds mixture into grinder to be ground, the deicing salt of preparation≤0.075mm particle sizes.
Deicing salt prepared by embodiment one, embodiment two, embodiment three, example IV, embodiment five is passed through into replacement
The mode that 0.075mm gathers materials is added in asphalt, prepares test specimen, and carries out salt respectively and analyze experiment.
Described to gather materials using AC-13 gradings, each shelves gather materials as shown in table 1, and pitch used is SBSI-C types, optimum oil-stone ratio
It is 4.71%, test result is as shown in table 2.
1 aggregate grading of table
2 test result of table
Claims (10)
1. a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, which is characterized in that including porous material, salt, idol
Join agent solution and hydrophobing agent, wherein the mass ratio between porous material, salt, coupling agent solution and hydrophobing agent be (55~
70)：(20~30)：(3~5)：(6~10).
2. according to claim 1 a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, which is characterized in that described
Porous material is honeycomb structure.
3. according to claim 2 a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, which is characterized in that described
Porous material is slag.
4. according to claim 1 a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, which is characterized in that described
Salt is sodium chloride.
5. according to claim 1 a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, which is characterized in that described
Coupling agent solution is made of γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water and ethyl alcohol, wherein γ-
Aminopropyl triethoxysilane or methyltrimethoxysilane, water and the ethyl alcohol mass percent in coupling agent solution are 1:5:9.
6. according to claim 1 a kind of for wrapping up in oil type salt from snow-melting asphalt pavement, which is characterized in that described
Hydrophobing agent is polymethyl siloxane.
7. a kind of preparation method for wrapping up in oil type salt based on claim 1-6 any one of them, which is characterized in that including with
Lower step：
Step 1, porous material and salt be mixed and stirred for uniformly, obtaining mixture；
Step 2, coupling agent solution is added in mixture and stirs evenly, obtains mixed slurry；Wherein, porous material, salinization
The mass ratio of object and coupling agent solution is (55~70)：(20~30)：(3~5)；
Step 3, hydrophobing agent is added into mixed slurry and stirs evenly, obtains semi-finished product；Wherein, hydrophobing agent and coupling agent solution
Mass ratio be (6~10)：(3~5)；
Step 4, the semi-finished product obtained in step 3 are placed in incubator and are aged 30-60min, obtain wrapping up in oil type salt.
8. according to claim 7 a kind of for wrapping up in oil type salt preparation method, feature from snow-melting asphalt pavement
It is, in step 1, before being mixed porous material and salt, placement is dried in an oven, wherein baking temperature
It is 160 DEG C, keeps the temperature 3-6h.
9. according to claim 7 a kind of for wrapping up in oil type salt preparation method, feature from snow-melting asphalt pavement
Be, in step 2, the coupling agent solution be by γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water and
Ethyl alcohol forms, wherein γ-aminopropyl triethoxysilane or methyltrimethoxysilane, water and ethyl alcohol are in coupling agent solution
Mass percent is 1:5:9.
10. according to claim 7 a kind of for wrapping up in oil type salt preparation method, feature from snow-melting asphalt pavement
Be, in step 4 gained wrap up in oil type salt when in use, be placed in grinder and be ground, obtain grain size≤
The deicing salt of 0.075mm.
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| CN201810463372.6A CN108623200A (en) | 2018-05-15 | 2018-05-15 | It is a kind of to be used to wrap up in oil type salt and preparation method thereof from snow-melting asphalt pavement |
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| CN201810463372.6A CN108623200A (en) | 2018-05-15 | 2018-05-15 | It is a kind of to be used to wrap up in oil type salt and preparation method thereof from snow-melting asphalt pavement |
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Cited By (4)
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| CN110746933A (en) * | 2019-11-19 | 2020-02-04 | 山东高速科技发展集团有限公司 | Active snow-melting agent realizing slow release based on coupling reaction and preparation method thereof |
| CN111662057A (en) * | 2020-06-24 | 2020-09-15 | 江苏天诺环境工程技术开发有限公司 | Self-snow-melting color square brick and preparation method thereof |
| CN112645637A (en) * | 2020-12-23 | 2021-04-13 | 四川省公路规划勘察设计研究院有限公司 | Self-speed-adjusting low-freezing-point material and preparation method thereof |
| CN115260991A (en) * | 2022-07-27 | 2022-11-01 | 胡勇 | Coated snow-melting agent and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110746933A (en) * | 2019-11-19 | 2020-02-04 | 山东高速科技发展集团有限公司 | Active snow-melting agent realizing slow release based on coupling reaction and preparation method thereof |
| CN110746933B (en) * | 2019-11-19 | 2022-05-20 | 山东高速科技发展集团有限公司 | Active snow-melting agent capable of realizing slow release based on coupling reaction and preparation method thereof |
| CN111662057A (en) * | 2020-06-24 | 2020-09-15 | 江苏天诺环境工程技术开发有限公司 | Self-snow-melting color square brick and preparation method thereof |
| CN112645637A (en) * | 2020-12-23 | 2021-04-13 | 四川省公路规划勘察设计研究院有限公司 | Self-speed-adjusting low-freezing-point material and preparation method thereof |
| CN115260991A (en) * | 2022-07-27 | 2022-11-01 | 胡勇 | Coated snow-melting agent and preparation method and application thereof |
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Application publication date: 20181009 |