CN108587202A - A kind of bottom of tower oil rubber modified bitumen and preparation method thereof - Google Patents
A kind of bottom of tower oil rubber modified bitumen and preparation method thereof Download PDFInfo
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- CN108587202A CN108587202A CN201810405717.2A CN201810405717A CN108587202A CN 108587202 A CN108587202 A CN 108587202A CN 201810405717 A CN201810405717 A CN 201810405717A CN 108587202 A CN108587202 A CN 108587202A
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of bottom of tower oil rubber modified bitumens, are made of the raw material of following parts by weight：100 parts of asphalt, 15~25 parts of rubber powder, 2~8 parts of bottom of tower oil.A kind of method preparing bottom of tower oil rubber modified bitumen is still further provided, this method is：Pitch is heated to molten condition first, bottom of tower oil then is added into the asphalt of molten condition and rubber powder stirs evenly, obtains mixture, then shear the mixture, development is stood after shearing, finally obtains bottom of tower oil rubber modified bitumen.Bottom of tower oil of the present invention has preferable activation to rubber powder, it can not only promote activation swelling of the rubber powder in asphalt, modified pitch of good performance is obtained, and improves the recovery utilization rate of used oil and waste tire, there is notable economic and social benefit.
Description
Technical field
The invention belongs to rubber modified bitumen technical fields, and in particular to a kind of bottom of tower oil rubber modified bitumen and its preparation
Method.
Background technology
With China's expanding economy, the application of machine oil is increasingly extensive, and the used oil generated every year by Motor Maintenance is about
18000000 tons.However a used oil part is directly outwelled, and is polluted to soil and water body；Another part is burnt as fuel
Fall, utility value is not high.Be becoming tight world energy sources day under environmental protection dual-pressure, be badly in need of increase used oil recycling and
Regeneration dynamics.The important means that refining process is utilized as regenerating waste oil, is worldwide widely used.Used oil passes through
It the larger residue of residual amount, as bottom of tower oil, bottom of tower oil can be total in a distillation column with asphalt after vacuum distillation processing
There is good compatibility and stability after mixed.On the other hand, until the output of China's waste tire in 2012 has occupied the world
First, total weight is 10,180,000 tons, and the waste tire rate of recovery in China is less than 50% at present.The generation of a large amount of waste tires
Immense pressure is caused to China's environment, is referred to as " black pollution ", and waste tire is applied to rubber drip is made in pitch
High temperature Rut resistance, anti-low-temperature cracking and the anti-fatigue performance of pitch can be improved in blueness.
Application No. is disclosed in a kind of environment-friendly rubber asphalt of CN201510858768.7 and preparation method thereof using useless
Old tire rubber powder, and add the auxiliary agents such as activator, adhesive, activating agent, vulcanizing agent and antioxidant and make rubber asphalt.It should
Method simplifies the activating process of rubber asphalt, reduces cost, but auxiliary additive is more in this method, and technique is more multiple
It is miscellaneous, and obtain rubber asphalt cryogenic property and decrease.
Invention content
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of bottom of tower oil to change
Property rubber asphalt.By adding bottom of tower oil come rubber modified bitumen in the rubber modified bitumen, wherein bottom of tower oil has rubber powder
Preferable activation can not only promote activation swelling of the rubber powder in asphalt, and improve used oil and waste and old
The recovery utilization rate of tire has notable economic and social benefit.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of bottom of tower oil rubber modified bitumen, it is special
Sign is, is made of the raw material of following parts by weight：100 parts of asphalt, 15~25 parts of rubber powder, 2~8 parts of bottom of tower oil are described
Bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
There is good compatibility and stability, the fragrance in the oil of bottom of tower after bottom of tower oil is blended with asphalt in the present invention
Component has preferable activation to rubber powder, promotes activation swelling of the rubber powder in pitch.
Above-mentioned a kind of bottom of tower oil rubber modified bitumen, which is characterized in that be made of the raw material of following parts by weight：Oil drips
It is 100 parts green, 18~22 parts of rubber powder, 4~6 parts of bottom of tower oil.
Above-mentioned a kind of bottom of tower oil rubber modified bitumen, which is characterized in that be made of the raw material of following parts by weight：Oil drips
It is 100 parts green, 20 parts of rubber powder, 4 parts of bottom of tower oil.
In addition, the present invention also provides a kind of method preparing a kind of above-mentioned bottom of tower oil rubber modified bitumen, feature exists
In this method is：Asphalt is heated to molten condition first, bottom of tower oil is then added into the asphalt of molten condition
It is stirred evenly with rubber powder, obtains mixture, then the mixture 45min is sheared with the rate of 3000r/min~5000r/min
~60min, shearing stand development 45min~60min under conditions of being placed on 165 DEG C~185 DEG C, finally obtain bottom of tower oil and be modified
Rubber asphalt.
In preparation process of the present invention three components by high temperature develop, be conducive to rubber powder particles simultaneously absorption tower base oil and
Light components in asphalt and activation cleavage is swollen, form smaller glue core, glue core colloid abundant in the oil of bottom of tower
Under effect, the colloidal dispersion of finely dispersed stabilization is formed, therefore mixes bottom of tower oil in modified pitch and is conducive to improve rubber drip
Green low-temperature cracking-resistance and anti-fatigue performance meets bituminous paving requirement under the conditions of complicated climatic environment.
Above-mentioned a kind of bottom of tower oil rubber modified bitumen, which is characterized in that the time of the stirring is 10min, then oil
Pitch, bottom of tower oil and rubber powder are tentatively realized and are stirred evenly.
Above-mentioned a kind of bottom of tower oil rubber modified bitumen, which is characterized in that the rate of the shearing is 4000r/min, is cut
The time cut is 60min.
Above-mentioned a kind of bottom of tower oil rubber modified bitumen, which is characterized in that the temperature for standing development is 175 DEG C, quiet
The time for setting development is 60min.
Compared with the prior art, the present invention has the following advantages：
1, there is good compatibility and stability, the virtue in the oil of bottom of tower after bottom of tower oil is blended with asphalt in the present invention
Fragrant component has preferable activation to rubber powder, promotes activation swelling of the rubber powder in pitch.Through height after a period of time
Temperature development, be conducive to rubber powder particles simultaneously absorption tower base oil and light components in asphalt and activation cleavage is swollen, shape
At smaller glue core, under glue core colloid effect abundant in the oil of bottom of tower, the colloidal dispersion of finely dispersed stabilization is formed.It mixes
Add bottom of tower oil to be conducive to improve the low-temperature cracking-resistance and anti-fatigue performance of rubber asphalt, meets pitch under the conditions of complicated climatic environment
Pavement usage requirement.
2, the viscosity of bottom of tower oil rubber modified bitumen prepared by the present invention has certain reduction, advantageously reduces pitch mixing
It the mix temperature of material and rolls temperature, saves energy consumption, and manufacture craft is simple, it is cheap, it is easy to utilize.
3, the yield of the used bottom of tower oil of the present invention is larger, and performance is stablized, and is typically used as waste for discharging, and this hair
It is bright to use its rubber modified bitumen, its value is developed, is turned waste into wealth, environment can be improved.Therefore, bottom of tower of the invention oil
Rubber modified bitumen can improve used oil and waste tire recovery utilization rate, be conducive to environmental protection.
Technical scheme of the present invention is described in further detail below by drawings and examples.
Description of the drawings
Fig. 1 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and rubber asphalt prepared by comparative example 1
Complex modulus principal curve.
Fig. 2 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and rubber asphalt prepared by comparative example 1
Tired factor curve figure at different temperatures.
Fig. 3 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and rubber asphalt prepared by comparative example 1
Stiffness modulus S (t) comparison diagrams after short ageing at -18 DEG C and -24 DEG C.
Fig. 4 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and rubber asphalt prepared by comparative example 1
Stiffness modulus S (t) comparison diagrams after long-term ageing at -18 DEG C and -24 DEG C.
Fig. 5 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and rubber asphalt prepared by comparative example 1
M value comparison diagrams after short ageing at -18 DEG C and -24 DEG C.
Fig. 6 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and rubber asphalt prepared by comparative example 1
M value comparison diagrams after long-term ageing at -18 DEG C and -24 DEG C.
Specific implementation mode
Embodiment 1
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
20 parts, 2 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is：Asphalt is heated to molten condition first,
Then bottom of tower oil is added into the asphalt of molten condition and rubber powder stirs evenly, obtain mixture, then with 4000r/min
Rate shear the mixture 60min, shearing stands development 60min under conditions of being placed on 175 DEG C, finally obtain bottom of tower oil
Rubber modified bitumen.
Embodiment 2
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
20 parts, 4 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is same as Example 1.
Embodiment 3
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
20 parts, 6 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is same as Example 1.
Embodiment 4
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
20 parts, 8 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is same as Example 1.
Embodiment 5
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
15 parts, 2 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is：Asphalt is heated to molten condition first,
Then bottom of tower oil is added into the asphalt of molten condition and rubber powder stirs evenly, obtain mixture, then with 3000r/min
Rate shear the mixture 45min, shearing stands development 45min under conditions of being placed on 165 DEG C, finally obtain bottom of tower oil
Rubber modified bitumen.
Embodiment 6
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
25 parts, 8 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is：Asphalt is heated to molten condition first,
Then bottom of tower oil is added into the asphalt of molten condition and rubber powder stirs evenly, obtain mixture, then with 5000r/min
Rate shear the mixture 50min, shearing stands development 55min under conditions of being placed on 185 DEG C, finally obtain bottom of tower oil
Rubber modified bitumen.
Embodiment 7
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
18 parts, 4 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is：Asphalt is heated to molten condition first,
Then bottom of tower oil is added into the asphalt of molten condition and rubber powder stirs evenly, obtain mixture, then with 3000r/min
Rate shear the mixture 60min, shearing stands development 60min under conditions of being placed on 175 DEG C, finally obtain bottom of tower oil
Rubber modified bitumen.
Embodiment 8
The present embodiment bottom of tower oil rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, rubber powder
22 parts, 6 parts of bottom of tower oil.The bottom of tower oil is used oil remaining residue after vacuum distillation is handled.
The preparation method of the present embodiment bottom of tower oil rubber modified bitumen is：Asphalt is heated to molten condition first,
Then bottom of tower oil is added into the asphalt of molten condition and rubber powder stirs evenly, obtain mixture, then with 4000r/min
Rate shear the mixture 60min, shearing stands development 60min under conditions of being placed on 185 DEG C, finally obtain bottom of tower oil
Rubber modified bitumen.
Comparative example 1
This comparative example rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, 20 parts of rubber powder.
The preparation method of this comparative example rubber modified bitumen is：Pitch is heated to molten condition first, then to melting
Rubber powder is added in the asphalt of state to stir evenly, obtains mixture, then the mixing is sheared with the rate of 4000r/min
Object 60min, shearing stand development 60min, finally obtain bottom of tower oil rubber modified bitumen under conditions of being placed on 175 DEG C.
Comparative example 2
This comparative example rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, 20 parts of rubber powder,
10 parts of bottom of tower oil.
The preparation method of this comparative example rubber modified bitumen is same as Example 1.
Comparative example 3
This comparative example rubber modified bitumen is made of the raw material of following parts by weight：100 parts of asphalt, 20 parts of rubber powder,
12 parts of bottom of tower oil.
The preparation method of this comparative example rubber modified bitumen is same as Example 1.
The bottom of tower oil that 1~embodiment of the embodiment of the present invention 8 and 1~comparative example of comparative example 3 use is is placed in destilling tower
Used oil remains in the bottoms in tower after vacuum distillation is handled, and appearance is dark thick liquid.Rubber powder uses
Waste and used rubber tyre passes through trimming at normal temperatures, and it is fine to be processed into 20 mesh~100 purposes for the techniques such as steel wire separation, magnetic separation, milling
Rubber powder.Asphalt is No. 110 heavy traffic paving asphalts, and technical indicator meets《Asphalt highway construction skill
Art specification》The technology requirement of (JTG F40-2004).
Reference《Highway engineering pitch and Asphalt Mixture Experiment regulation》Asphalt Penetration in (JTG E20-2011) prolongs
The experiment of degree, softening point, viscosity, elastic recovery properties, bottom of tower oil rubber modified bitumen prepared by 1~embodiment of embodiment 8,
The correlated performance of rubber modified bitumen and asphalt prepared by 1~comparative example of comparative example 3 is tested, and the results are shown in Table 1.
The test result of 1 bottom of tower oil rubber modified bitumen of table, rubber modified bitumen and asphalt
From the data in table 1：Bottom of tower oil rubber modified bitumen and comparative example 1 prepared by 1~embodiment of embodiment 8~
Rubber asphalt prepared by comparative example 3 can meet the requirement of highway engineering pitch and asphalt, but by embodiment 1
Rubber asphalt prepared by bottom of tower oil rubber modified bitumen and comparative example 1 prepared by~embodiment 4 is compared, and all uses 100
The asphalt and 20 parts of rubber powders of part, the only volume of bottom of tower oil are different, carefully analyze, are obtained mixed with tower to test result
Base oil advantageously reduces the 135 DEG C of viscosity and 175 DEG C of viscosity of modified pitch, this advantageously reduces the mix temperature of asphalt
With roll temperature, be further conducive to the Energy Consumption of Construction for saving asphalt, while having added bottom of tower oil and being also beneficial to improve
25 DEG C of elastic restoration ratios, but 10 parts of bottom of tower oil has been added in the modified pitch of comparative example 2, in the modified pitch of comparative example 3
12 parts of bottom of tower oil has been added, but has found that the test data of comparative example 2 and comparative example 3 shows its 25 DEG C of elastic restoration ratios not
Increase because of the increase of bottom of tower oil, reduces instead, this illustrates that the volume of bottom of tower oil is extensive to 25 DEG C of elasticity of rubber modified bitumen
Multiple rate increases in the range of 2 parts~8 parts, and 25 DEG C of elasticity, which restore data, can indicate that the anti-fatigue performance of pitch is carried
Height, therefore between the parts by weight of bottom of tower oil are limited to 2 parts~8 parts, mixing the rubber modified bitumen of this range could reduce and change
Property pitch 135 DEG C of viscosity and 175 DEG C of viscosity, and improve 25 DEG C of elastic restoration ratios of modified pitch, mixed so as to improve pitch
The mix temperature of material and the anti-fatigue performance for rolling temperature and raising rubber modified bitumen.
The bottom of tower oil that the HDR-1 types dynamic shear rheometer produced using TA companies prepares 2~embodiment of embodiment 6 changes
Property rubber asphalt and comparative example 1 prepare rubber asphalt carry out DSR test.Rubber modified bitumen 52 DEG C, 58
DEG C, under the conditions of 64 DEG C, carry out the scanning of 0.1Hz~25Hz frequencies.Between 46 DEG C~78 DEG C, it is spaced 4 DEG C of totally 9 temperature conditions
Lower carry out temperature scanning, scan frequency 10rad/s.The strain applied in DSR test is 10%, and fixture is straight
Diameter is 25mm, and asphalt membrane thickness is 1mm.DSR test obtains the complex modulus under the conditions of different tests and phase
Angle.Complex modulus is obtained according to time temperature equivalence principle, Fig. 1 is bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6
The complex modulus principal curve of the rubber asphalt prepared with comparative example 1.Fig. 2 is that bottom of tower oil prepared by 2~embodiment of embodiment 6 is modified
The tired factor curve figure of rubber asphalt prepared by rubber asphalt and comparative example 1 at different temperatures.From Fig. 1 and Fig. 2：From
As can be seen that rubber prepared by bottom of tower oil rubber modified bitumen and comparative example 1 prepared by comparative example 2, embodiment 4 in Fig. 1
Pitch, all use 100 parts asphalt and 20 parts of rubber powders, the volume of only bottom of tower oil is different, show that bottom of tower oil volume is 4
Part~8 parts when, the complex modulus difference of modified pitch is not notable.From figure 2 it can be seen that the situation constant in rubber powder volume
Under, increase the volume of bottom of tower oil, the tired factor increases, and shows that bottom of tower oil can improve the fatigue behaviour of modified pitch.
The bottom of tower oil modified rubber drip using rotary thin film in drying oven and pressure ageing oven prepared by 2~embodiment of embodiment 6
Rubber asphalt prepared by green and comparative example 1 carries out short ageing and long-term ageing, aging method reference respectively《Highway engineering pitch
And Asphalt Mixture Experiment regulation》(JTG E20-2011) is carried out.Sample after aging is produced by CANNON companies of the U.S.
BBR testers carry out -18 DEG C and -24 DEG C of bending creep tests, obtain creep stiffness S and creep rate m values.Fig. 3 is to implement
At -18 DEG C after rubber asphalt short ageing prepared by bottom of tower oil rubber modified bitumen and comparative example 1 prepared by 2~embodiment of example 6
With stiffness modulus S (t) comparison diagrams at -24 DEG C；Fig. 4 be 2~embodiment of embodiment 6 prepare bottom of tower oil rubber modified bitumen and
Stiffness modulus S (t) comparison diagrams after rubber asphalt long-term ageing prepared by comparative example 1 at -18 DEG C and -24 DEG C；Fig. 5 is to implement
At -18 DEG C after rubber asphalt short ageing prepared by bottom of tower oil rubber modified bitumen and comparative example 1 prepared by 2~embodiment of example 6
With the m value comparison diagrams at -24 DEG C；Fig. 6 is that bottom of tower oil rubber modified bitumen prepared by 2~embodiment of embodiment 6 and comparative example 1 are made
M value comparison diagrams after standby rubber asphalt long-term ageing at -18 DEG C and -24 DEG C.Experimental result is as shown in figures 4-6.From Fig. 3
It is dripped with can be seen that embodiment 2, bottom of tower oil rubber modified bitumen prepared by embodiment 4 and rubber prepared by comparative example 1 in Fig. 4
After short ageing and long-term ageing, comparison stiffness modulus S (t) is added blueness it is found that when rubber powder (20 parts) volume is constant
The increase of bottom of tower oil, stiffness modulus S (t) are reduced, and show that modified pitch crack resistance at low-temperature is improved, but compare implementation simultaneously
Bottom of tower oil rubber modified bitumen prepared by example 4 and embodiment 6 is it is found that bottom of tower oil volume is constant, when the increase of rubber powder volume, strength
Modulus S (t) to be spent to increase, the low-temperature cracking-resistance of bottom of tower oil rubber modified bitumen is declined,.It is real as can be known from Fig. 5 and Fig. 6
Apply example 2, bottom of tower oil rubber modified bitumen prepared by embodiment 4 and rubber asphalt prepared by comparative example 1 and tower prepared by comparative example 2
Base oil rubber asphalt after short ageing and long-term ageing, comparison creep rate m values it is found that when rubber powder volume is constant,
Bottom of tower oil increases, and creep rate m values increase, and deformation of creep ability enhances bottom of tower oil modified pitch under cryogenic, shows tower
Base oil modified pitch crack resistance at low-temperature is improved.And bottom of tower oil modified rubber drip prepared by comparative example 4 and embodiment 5
Blueness is it is found that bottom of tower oil volume is constant, and when rubber powder volume is reduced, creep rate m values are substantially reduced, modified pitch low-temperature cracking-resistance
Declined, therefore, bottom of tower oil and rubber powder are capable of the cryogenic property of common modified oil pitch.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention.It is every according to invention skill
Art essence still falls within technical solution of the present invention to any simple modification, change and equivalence change made by above example
Protection domain in.
Claims (7)
1. a kind of bottom of tower oil rubber modified bitumen, which is characterized in that be made of the raw material of following parts by weight：100 parts of asphalt,
15~25 parts of rubber powder, 2~8 parts of bottom of tower oil, the bottom of tower oil are used oil remaining residue after vacuum distillation is handled.
2. a kind of bottom of tower oil rubber modified bitumen according to claim 1, which is characterized in that by the raw material of following parts by weight
It is made：100 parts of asphalt, 18~22 parts of rubber powder, 4~6 parts of bottom of tower oil.
3. a kind of bottom of tower oil rubber modified bitumen according to claim 1, which is characterized in that by the raw material of following parts by weight
It is made：100 parts of asphalt, 20 parts of rubber powder, 4 parts of bottom of tower oil.
4. a kind of preparing a kind of method of bottom of tower oil rubber modified bitumen as described in claim 1,2 or 3, which is characterized in that should
Method is：Asphalt is first heated to molten condition, bottom of tower oil and rubber are then added into the asphalt of molten condition
Powder stirs evenly, and obtains mixture, then with the rate of 3000r/min~5000r/min shear the mixture 45min~
60min, shearing stand development 45min~60min under conditions of being placed on 165 DEG C~185 DEG C, finally obtain bottom of tower oil and be modified rubber
Glue pitch.
5. according to the method described in claim 4, it is characterized in that, the time of the stirring is 10min.
6. according to the method described in claim 4, it is characterized in that, the rate of the shearing be 4000r/min, the time of shearing
For 60min.
7. according to the method described in claim 4, it is characterized in that, it is described stand development temperature be 175 DEG C, stand development
Time is 60min.
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| CN113201226A (en) * | 2021-05-25 | 2021-08-03 | 山东交通学院 | Modified asphalt mixed with waste engine oil residues and waste rubber and preparation method thereof |
| CN113512297A (en) * | 2021-05-25 | 2021-10-19 | 山东交通学院 | Composite modified asphalt doped with waste engine oil residues and polyphosphoric acid and preparation method thereof |
| CN113921091A (en) * | 2021-11-25 | 2022-01-11 | 西南交通大学 | Modified asphalt main curve construction method based on double S-shaped functions |
| CN114854218A (en) * | 2022-03-28 | 2022-08-05 | 东南大学 | High-content rubber modified asphalt and preparation method and application thereof |
| CN115181429A (en) * | 2022-06-16 | 2022-10-14 | 山西省交通科技研发有限公司 | Biological oil modified rubber asphalt and phase separation evaluation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113201226A (en) * | 2021-05-25 | 2021-08-03 | 山东交通学院 | Modified asphalt mixed with waste engine oil residues and waste rubber and preparation method thereof |
| CN113512297A (en) * | 2021-05-25 | 2021-10-19 | 山东交通学院 | Composite modified asphalt doped with waste engine oil residues and polyphosphoric acid and preparation method thereof |
| CN113512297B (en) * | 2021-05-25 | 2022-07-22 | 山东交通学院 | Composite modified asphalt doped with waste engine oil residues and polyphosphoric acid and preparation method thereof |
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| CN115181429A (en) * | 2022-06-16 | 2022-10-14 | 山西省交通科技研发有限公司 | Biological oil modified rubber asphalt and phase separation evaluation method thereof |
| CN115181429B (en) * | 2022-06-16 | 2023-11-14 | 山西省交通科技研发有限公司 | Biological oil modified rubber asphalt and phase separation evaluation method thereof |
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Application publication date: 20180928 |