CN109369070A - A kind of asphalt pavement material and preparation method thereof that acid rain resistant corrodes - Google Patents
A kind of asphalt pavement material and preparation method thereof that acid rain resistant corrodes Download PDFInfo
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- CN109369070A CN109369070A CN201811386285.1A CN201811386285A CN109369070A CN 109369070 A CN109369070 A CN 109369070A CN 201811386285 A CN201811386285 A CN 201811386285A CN 109369070 A CN109369070 A CN 109369070A
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/23—Acid resistance, e.g. against acid air or rain
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses the asphalt pavement materials that a kind of acid rain resistant corrodes, including following component: asphalt, compatilizer, SBS, micron silica, EVA rubber powder, antioxidant, naphthalenesulfonate formaldehyde condensation compound, magnetic Nano earth silicon material, modified molecular screen and SBR modified pitch.During acid rain impregnates, by acid rain various acid ingredients and salinity be adsorbed in nanometer silicon dioxide material and bagasse molecular sieve, and flow freely its moisture inside the nanotube, drainage is good；Since acid rain out of pitch seep by subordinate, therefore pitch is influenced by the removing of water than more serious, therefore is used to the extraordinary cementitious matter of aggregate adhesive property, and the water-resistance on road surface is improved；Bagasse molecular sieve has good magnetism, and the mutual absorption property between Silica Nanotube is good, very good to the adsorption effect of acid ingredient and salinity in acid rain.The performance that there is the asphalt pavement material that acid rain resistant of the invention corrodes good acid rain resistant to corrode, also has extraordinary protective effect to the roadbed under pitch.
Description
Technical field
The asphalt pavement material corroded the present invention relates to pavement technique field more particularly to a kind of acid rain resistant and its preparation side
Method.
Background technique
Acid rain is the wet deposition in acid deposition, and acid deposition can be divided into " wet deposition " and " dry deposition " two major classes, the former
Refer to all vaporous pollutants or particulate contaminant, the person of falling to the ground, the latter with precipitation forms such as rain, snow, mist or hails
Then refer on the date not rained, for the acidic materials of the dust fall institute band to lower in the air.Acid rain divides nitric acid type acid rain again
And sulfate type acid rain.
Acid rain refers to the precipitation of sleet of the pH less than 5.6 or other forms.Rain, snow etc. are inhaled in formation and descent
The substances such as the sulfur dioxide in air, oxynitrides are received and dissolved, the acid precipitation that pH is lower than 5.6 is formd.Acid rain master
If artificial discharges into atmosphere caused by a large amount of acidic materials.The acid rain of China is mainly because a large amount of combustion of sulfur amounts are high
Coal and formed, mostly sulfuric acid rain is less nitric acid rain, in addition, the tail gas of various vehicular emissions is also to form acid rain important
Reason.The some areas in China have become the multiple area of acid rain, and the range and degree of Acid Rain Pollution have caused the close pass of people
Note.
Surface gathered water when drainage road can be by rainfall penetrates into following impermeable stratum, and rapid by road shoulder position
Drain, to alleviate damage caused by ponding road pavement structure.This pavement structure can also eliminate rainy day high vehicle speeds
When the smooth phenomenon of moisture film, improve travel safety, further, it is also possible to reduce brought by vehicle driving high speed increasingly increasingly
Serious noise phenomena.
Acid rain can not only damage asphalt material, and can also cause to corrode to roadbed through asphalt material, thus
The durability on road surface is substantially reduced, in order to further increase the durability of bituminous pavement, it is necessary to study a kind of acid rain resistant and invade
Asphalt pavement material of erosion and preparation method thereof.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of acid rain resistant corrode asphalt pavement material and
Preparation method.
Technical scheme is as follows:
A kind of asphalt pavement material that acid rain resistant corrodes, including following component: asphalt, compatilizer, SBS, micron order
Silica, EVA rubber powder, antioxidant, naphthalenesulfonate formaldehyde condensation compound, magnetic Nano earth silicon material, modified molecular screen
With SBR modified pitch.
Preferably, the asphalt pavement material that the acid rain resistant corrodes, the ingredient including following weight percent: petroleum drip
Green 45-55%, compatilizer 7-12%, SBS 12-18%, micron silica 2-5%, EVA rubber powder 1-3%, antioxidant
0.5-1%, naphthalenesulfonate formaldehyde condensation compound 0.2-0.5%, magnetic Nano earth silicon material 0.01-0.03%, modified molecules
Sieve 1.2-2% and SBR modified pitch surplus.
The compatilizer is high fragrant alkene；Antioxidant is antioxidant AT168.
Preferably, the preparation method of the magnetic Nano earth silicon material, includes the following steps；
A, the method with reference to Chinese invention patent CN102874820A prepares cellular silica nanotube；
B, the cellular silica nanotube in step A is dissolved in ethylene glycol, FeCl is added3·6H2O and Na2CO3,
PEG-400 is added after stirring and dissolving, is uniformly mixed；Solution is sealed in autoclave, 150-180 DEG C of forced air drying is put into
12-16h is heated in case；
C, after to reaction solution cooling, do not have magnetic impurity using the removing of magnet separation method；It is cleaned with ethanol solution
Remaining organic matter, it is dry, magnetic Nano earth silicon material can be obtained after grinding.
Preferably, the length of the cellular silica nanotube in the step A is 2-5 μm, is slightly 150-
400nm。
Preferably, the modified molecular screen is magnetic modified molecular screen.
Preferably, the preparation method of the magnetic modified molecular screen, comprising the following steps:
Step 1: molecular sieve is prepared using bagasse, and aperture adjustment is carried out to carbon molecular sieve, obtains bagasse point
Son sieve；
Step 2: bagasse molecular sieve being put into pre-configured iron oxide and ferrous oxide mixed solution, heating
60-100 DEG C of immersion 10-30min；
Step 3: it by the bagasse molecular sieve after immersion, is put into high-intensity magnetic field after draining and magnetizes 20-30min；Then it carries out
600-800 DEG C of high-temperature roasting, crushes repeatedly, crosses 325 meshes, magnetic modified molecular screen can be obtained.
Preferably, in the step two, the molar ratio of iron oxide and ferrous oxide is 1:1.
A kind of preparation method for the asphalt pavement material that acid rain resistant corrodes, comprising the following steps:
A, after mixing magnetic Nano earth silicon material and modified molecular screen, the compatilizer of 8-10% is added, wet process is ground
Mill is uniformly mixed；
B, in high-shear impeller, adjusting mixing speed is 2000-3500r/min, by asphalt and the modified drip of SBR
Blueness is heated to 180-220 DEG C, and remaining compatilizer, SBS, micron silica, EVA rubber powder, antioxidant, naphthalene sulfonic acids is added
Salt formaldehyde condensation products keep temperature and stir 30-45min；
C, the mixture in step A is added, continues to stir 20-30min；Form homogeneous system.
The present invention utilizes molecular sieve on the basis of bagasse molecular sieve prepared by Chinese invention patent CN106185916A
Absorption property molecular sieve is further modified, by iron oxide and ferrous oxide mixed solution heat impregnate, then
Magnetization, can be by iron oxide and ferrous oxide ordered arrangement, and then ferrous oxide is oxidized to iron oxide by high-temperature roasting again；Finally
Crushing obtains micron order modified magnetic molecular sieve.
The main function of magnetic Nano earth silicon material of the invention is to be combined with each other with modified molecular screen and be dispersed in drip
In blueness, a kind of composite material is formed, which can both allow water flow to pass through from nanotube, smoothly penetrate into road bed, and can be with
The various acid ingredients and salinity in acid rain are intercepted, make the absorption of these substances over a molecular sieve, effective protection road bed is not by acid
The erosion of rain.
The invention has the beneficial effects that: 1, the present invention existing pitch on the basis of be added magnetic silica material
Can be during acid rain impregnate due to the special construction of Silica Nanotube with bagasse molecular sieve, it will be in acid rain
Various acid ingredients and salinity are adsorbed in nanometer silicon dioxide material and bagasse molecular sieve, and make its moisture out of nanotube
Portion flows freely, and drainage is good；2, due to acid rain out of pitch subordinate seep, therefore pitch influenced by the removing of water it is tighter
Weight, therefore asphalt, the pairs of extraordinary cementitious matter of aggregate adhesive property of SBS and SBR modified pitch group are used, improve road surface
Water-resistance；3, in the modifying process of bagasse molecular sieve, first iron ion and ferrous ion are absorbed into inside molecular sieve, so
Afterwards by magnetic field ordered arrangement, by ferrous ions, molecular sieve has good magnetism, improves and silica nanometer
Mutual absorption property between pipe is very good to the adsorption effect of acid ingredient and salinity in acid rain.In conclusion of the invention
Acid rain resistant corrode asphalt pavement material have good acid rain resistant corrode performance, there also have to the roadbed under pitch to be very good
Protective effect.
Specific embodiment
Embodiment 1:
A kind of asphalt pavement material that acid rain resistant corrodes, the ingredient including following weight percent: asphalt 52%, phase
Hold agent 8%, SBS 15%, micron silica 2.5%, EVA rubber powder 1.5%, antioxidant 0.7%, naphthalene sulphonate formaldehyde
Condensation product 0.3%, magnetic Nano earth silicon material 0.015%, modified molecular screen 1.8% and SBR modified pitch surplus.
The compatilizer is high fragrant alkene；Antioxidant is antioxidant AT168；The grain of the micron silica
Diameter is 50-200 μm.
The preparation method of the magnetic Nano earth silicon material, includes the following steps；
A, the method with reference to Chinese invention patent CN102874820A prepares cellular silica nanotube；
B, the cellular silica nanotube in step A is dissolved in ethylene glycol, FeCl is added3·6H2O and Na2CO3,
PEG-400 is added after stirring and dissolving, is uniformly mixed；Solution is sealed in autoclave, is put into 160 DEG C of air dry ovens
Heat 15h；
C, after to reaction solution cooling, do not have magnetic impurity using the removing of magnet separation method；It is cleaned with ethanol solution
Remaining organic matter, it is dry, magnetic Nano earth silicon material can be obtained after grinding.
The length of cellular silica nanotube in the step A is 2-5 μm, is slightly 150-400nm.
In the solution of the step B, CO3 2-With Fe3+Molar ratio be 4:1, PEG-400 additional amount is overall solution volume
1/15。
The modified molecular screen is magnetic modified molecular screen.
The preparation method of the magnetic modified molecular screen, comprising the following steps:
Step 1: molecular sieve is prepared using bagasse, and aperture adjustment is carried out to carbon molecular sieve, obtains bagasse point
Son sieve；
Step 2: bagasse molecular sieve being put into pre-configured iron oxide and ferrous oxide mixed solution, heating
80 DEG C of immersion 25min；
Step 3: it by the bagasse molecular sieve after immersion, is put into high-intensity magnetic field after draining and magnetizes 25min；Then 750 are carried out
DEG C high-temperature roasting, crushes repeatedly, crosses 325 meshes, magnetic modified molecular screen can be obtained.
In the step two, the molar ratio of iron oxide and ferrous oxide is 1:1.
A kind of preparation method for the asphalt pavement material that acid rain resistant corrodes, comprising the following steps:
A, after mixing magnetic Nano earth silicon material and modified molecular screen, 8.5% compatilizer is added, wet process is ground
Mill is uniformly mixed；
B, in high-shear impeller, adjusting mixing speed is 2500r/min, and asphalt and SBR modified pitch are added
Remaining compatilizer, SBS, micron silica, EVA rubber powder, antioxidant, naphthalene sulphonate formaldehyde contracting is added to 205 DEG C in heat
Object is closed, temperature is kept and stirs 35min；
C, the mixture in step A is added, continues to stir 25min；Form homogeneous system.
Embodiment 2:
A kind of asphalt pavement material that acid rain resistant corrodes, the ingredient including following weight percent: asphalt 55%, phase
Hold agent 7%, SBS 18%, micron silica 2%, EVA rubber powder 3%, antioxidant 1%, naphthalenesulfonate formaldehyde condensation compound
0.2%, magnetic Nano earth silicon material 0.03%, modified molecular screen 1.2% and SBR modified pitch surplus.
The compatilizer is high fragrant alkene；Antioxidant is antioxidant AT168；The grain of the micron silica
Diameter is 50-200 μm.
The preparation method of the magnetic Nano earth silicon material, includes the following steps；
A, the method with reference to Chinese invention patent CN102874820A prepares cellular silica nanotube；
B, the cellular silica nanotube in step A is dissolved in ethylene glycol, FeCl is added3·6H2O and Na2CO3,
PEG-400 is added after stirring and dissolving, is uniformly mixed；Solution is sealed in autoclave, is put into 180 DEG C of air dry ovens
Heat 12h；
C, after to reaction solution cooling, do not have magnetic impurity using the removing of magnet separation method；It is cleaned with ethanol solution
Remaining organic matter, it is dry, magnetic Nano earth silicon material can be obtained after grinding.
The length of cellular silica nanotube in the step A is 2-5 μm, is slightly 150-400nm.
In the solution of the step B, CO3 2-With Fe3+Molar ratio be 8:3, PEG-400 additional amount is overall solution volume
1/12。
The modified molecular screen is magnetic modified molecular screen.
The preparation method of the magnetic modified molecular screen, comprising the following steps:
Step 1: molecular sieve is prepared using bagasse, and aperture adjustment is carried out to carbon molecular sieve, obtains bagasse point
Son sieve；
Step 2: bagasse molecular sieve being put into pre-configured iron oxide and ferrous oxide mixed solution, heating
100 DEG C of immersion 10min；
Step 3: it by the bagasse molecular sieve after immersion, is put into high-intensity magnetic field after draining and magnetizes 30min；Then 600 are carried out
DEG C high-temperature roasting, crushes repeatedly, crosses 325 meshes, magnetic modified molecular screen can be obtained.
In the step two, the molar ratio of iron oxide and ferrous oxide is 1:1.
A kind of preparation method for the asphalt pavement material that acid rain resistant corrodes, comprising the following steps:
A, 8% compatilizer will be added after magnetic Nano earth silicon material and modified molecular screen mix, wet grinding,
It is uniformly mixed；
B, in high-shear impeller, adjusting mixing speed is 3500r/min, and asphalt and SBR modified pitch are added
Remaining compatilizer, SBS, micron silica, EVA rubber powder, antioxidant, naphthalene sulphonate formaldehyde contracting is added to 180 DEG C in heat
Object is closed, temperature is kept and stirs 45min；
C, the mixture in step A is added, continues to stir 20min；Form homogeneous system.
Embodiment 3:
A kind of asphalt pavement material that acid rain resistant corrodes, the ingredient including following weight percent: asphalt 45%, phase
Hold agent 12%, SBS 12%, micron silica 5%, EVA rubber powder 1%, antioxidant 0.5%, naphthalene sulphonate formaldehyde condensation
Object 0.5%, magnetic Nano earth silicon material 0.01%, modified molecular screen 2% and SBR modified pitch surplus.
The compatilizer is high fragrant alkene；Antioxidant is antioxidant AT168；The grain of the micron silica
Diameter is 50-200 μm.
The preparation method of the magnetic Nano earth silicon material, includes the following steps；
A, the method with reference to Chinese invention patent CN102874820A prepares cellular silica nanotube；
B, the cellular silica nanotube in step A is dissolved in ethylene glycol, FeCl is added3·6H2O and Na2CO3,
PEG-400 is added after stirring and dissolving, is uniformly mixed；Solution is sealed in autoclave, is put into 150 DEG C of air dry ovens
Heat 16h；
C, after to reaction solution cooling, do not have magnetic impurity using the removing of magnet separation method；It is cleaned with ethanol solution
Remaining organic matter, it is dry, magnetic Nano earth silicon material can be obtained after grinding.
The length of cellular silica nanotube in the step A is 2-5 μm, is slightly 150-400nm.
In the solution of the step B, CO3 2-With Fe3+Molar ratio be 3:1, PEG-400 additional amount is overall solution volume
1/18。
The modified molecular screen is magnetic modified molecular screen.
The preparation method of the magnetic modified molecular screen, comprising the following steps:
Step 1: molecular sieve is prepared using bagasse, and aperture adjustment is carried out to carbon molecular sieve, obtains bagasse point
Son sieve；
Step 2: bagasse molecular sieve being put into pre-configured iron oxide and ferrous oxide mixed solution, heating
60 DEG C of immersion 30min；
Step 3: it by the bagasse molecular sieve after immersion, is put into high-intensity magnetic field after draining and magnetizes 20min；Then 800 are carried out
DEG C high-temperature roasting, crushes repeatedly, crosses 325 meshes, magnetic modified molecular screen can be obtained.
In the step two, the molar ratio of iron oxide and ferrous oxide is 1:1.
A kind of preparation method for the asphalt pavement material that acid rain resistant corrodes, comprising the following steps:
A, 10% compatilizer will be added after magnetic Nano earth silicon material and modified molecular screen mix, wet grinding,
It is uniformly mixed；
B, in high-shear impeller, adjusting mixing speed is 2000r/min, and asphalt and SBR modified pitch are added
Remaining compatilizer, SBS, micron silica, EVA rubber powder, antioxidant, naphthalene sulphonate formaldehyde contracting is added to 220 DEG C in heat
Object is closed, temperature is kept and stirs 30min；
C, the mixture in step A is added, continues to stir 30min；Form homogeneous system.
Comparative example 1
By the magnetic Nano earth silicon material removal in embodiment 1, remaining proportion and preparation method are constant.
Comparative example 2
By the magnetic modified molecular screen removal in embodiment 1, remaining proportion and preparation method are constant.
Comparative example 3
Magnetic Nano earth silicon material in embodiment 1 is replaced with into nonmagnetic nanometer silicon dioxide material, remaining
Proportion and preparation method are constant.
Comparative example 4
Magnetic modified molecular screen in embodiment 1 is replaced with into nonmagnetic modified molecular screen, remaining proportion and preparation side
Method is constant.
Comparative example 5
Magnetic Nano earth silicon material in embodiment 1 is replaced with into magnetic Nano silica particulate material, remaining
Proportion and preparation method are constant.
The ground surface material acid rain resistant corrosion of embodiment 1-3 and comparative example 1-5 is investigated using following analysis test method
Performance:
Test 1: by the ground surface material of each embodiment, it is prepared into 200mm × 200mm × 5mm test block, test block is placed in acid rain
Middle immersion；The acid rain is according to molar ratio c (SO4 2-): c (NO3-The ratio of)=9:1 prepares the artificial acid rain of pH=4；
Primary fresh acid rain is replaced within every 7 days, it is 1 day dry before replacing, it is repeated according to immersion-drying-immersion period；After 6 months
Take out test.The compression strength of test block, flexural strength, weightlessness, surface smoothness (ocular estimate) are investigated.Test result is such as
Table 1.
Table 1: the acid rain resistant test data of asphalt pavement material
Test 2: by the ground surface material of each embodiment, being laid on the concrete test block surface of 200mm × 200mm, with a thickness of
5mm；Test block is put into the testing cassete of 200mm × 200mm, acid rain is poured into；The acid rain is according to molar ratio c (SO4 2-): c
(NO3-The ratio of)=9:1 prepares the artificial acid rain of pH=4；Primary fresh acid rain is replaced within every 7 days, it is 1 day dry before replacing, it presses
It is repeated according to immersion-drying-immersion period；Test is taken out after 6 months.It (note that in test, acid rain can not directly connect
Touch concrete test block).The compression strength of concrete test block, flexural strength are investigated.Test result such as table 2.
Table 2: the acid rain resistant test data of concrete test block
By the above test data it is recognised that the asphalt pavement material that corrodes of acid rain resistant of the invention have it is good acidproof
Rain performance also has extraordinary protective effect to the roadbed under pitch.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. the asphalt pavement material that a kind of acid rain resistant corrodes, which is characterized in that including following component: asphalt, compatilizer,
SBS, micron silica, EVA rubber powder, antioxidant, naphthalenesulfonate formaldehyde condensation compound, magnetic Nano earth silicon material,
Modified molecular screen and SBR modified pitch.
2. the asphalt pavement material that acid rain resistant as described in claim 1 corrodes, which is characterized in that including following weight percent
Ingredient: asphalt 45-55%, compatilizer 7-12%, SBS 12-18%, micron silica 2-5%, EVA rubber powder 1-
3%, antioxidant 0.5-1%, naphthalenesulfonate formaldehyde condensation compound 0.2-0.5%, magnetic Nano earth silicon material 0.01-
0.03%, modified molecular screen 1.2-2% and SBR modified pitch surplus.
3. the asphalt pavement material that acid rain resistant as described in claim 1 corrodes, which is characterized in that the magnetic Nano dioxy
The preparation method of silicon nitride material, includes the following steps；
A, the method with reference to Chinese invention patent CN102874820A prepares cellular silica nanotube；
B, the cellular silica nanotube in step A is dissolved in ethylene glycol, FeCl is added3·6H2O and Na2CO3, stirring
PEG-400 is added after dissolution, is uniformly mixed；Solution is sealed in autoclave, is put into 150-180 DEG C of air dry oven
Heat 12-16h；
C, after to reaction solution cooling, do not have magnetic impurity using the removing of magnet separation method；Residual is cleaned with ethanol solution
Organic matter, it is dry, magnetic Nano earth silicon material can be obtained after grinding.
4. the asphalt pavement material that acid rain resistant as claimed in claim 3 corrodes, which is characterized in that the bee in the step A
The length of nest shape Silica Nanotube is 2-5 μm, is slightly 150-400nm.
5. the asphalt pavement material that acid rain resistant as described in claim 1 corrodes, which is characterized in that the modified molecular screen is
Magnetic modified molecular screen.
6. the asphalt pavement material that acid rain resistant as claimed in claim 5 corrodes, which is characterized in that the magnetic modified molecules
The preparation method of sieve, comprising the following steps:
Step 1: molecular sieve is prepared using bagasse, and aperture adjustment is carried out to carbon molecular sieve, obtains bagasse molecule
Sieve；
Step 2: bagasse molecular sieve being put into pre-configured iron oxide and ferrous oxide mixed solution, heats 60-
100 DEG C of immersion 10-30min；
Step 3: it by the bagasse molecular sieve after immersion, is put into high-intensity magnetic field after draining and magnetizes 20-30min；Then 600- is carried out
800 DEG C of high-temperature roastings, crush repeatedly, cross 325 meshes, magnetic modified molecular screen can be obtained.
7. the asphalt pavement material that acid rain resistant as claimed in claim 6 corrodes, which is characterized in that in the step two, oxygen
The molar ratio for changing iron and ferrous oxide is 1:1.
8. a kind of preparation method for the asphalt pavement material that acid rain resistant corrodes, which comprises the following steps:
A, after mixing magnetic Nano earth silicon material and modified molecular screen, the compatilizer of 8-10% is added, wet grinding mixes
It closes uniform；
B, in high-shear impeller, adjusting mixing speed is 2000-3500r/min, and asphalt and SBR modified pitch are added
Remaining compatilizer, SBS, micron silica, EVA rubber powder, antioxidant, naphthalene sulfonate first is added to 180-220 DEG C in heat
Aldehyde condensate keeps temperature and stirs 30-45min；
C, the mixture in step A is added, continues to stir 20-30min；Form homogeneous system.
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| CN201811386285.1A CN109369070A (en) | 2018-11-20 | 2018-11-20 | A kind of asphalt pavement material and preparation method thereof that acid rain resistant corrodes |
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| CN201811386285.1A CN109369070A (en) | 2018-11-20 | 2018-11-20 | A kind of asphalt pavement material and preparation method thereof that acid rain resistant corrodes |
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Application publication date: 20190222 |