CN104744954B - Anti-rut agent, the composition and its preparation method for preparing it - Google Patents
Anti-rut agent, the composition and its preparation method for preparing it Download PDFInfo
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Abstract
The invention provides a kind of anti-rut agent, the composition and its preparation method that prepare it.By weight percentage, include for preparing the composition of the anti-rut agent：The tetrahydrofuran insoluble of 40%~60% coal liquefaction pitch；4%~12% asphalt；18%~40% polyethylene and/or polypropylene；And 5%~10% rubber powder.When preparing anti-rut agent using said composition for raw material, the water stability that the cost of production anti-rut agent but also manufactured anti-rut agent can not only be reduced is also higher, high-temperature behavior is preferable with cryogenic property, and other technologies index disclosure satisfy that Ministry of Communications ministry standard JTG F40 2004《Standard specification for construction and acceptance of highway asphalt pavement》Requirement.
Description
Technical field
The present invention relates to building material field, in particular to a kind of anti-rut agent, prepare its composition and its make
Preparation Method.
Background technology
At present, the rut problem of bituminous paving is one of the Major Diseases on road surface, drastically influence road-ability and peace
Quan Xing.It is addition anti-rut agent mainly to solve method to this problem, to improve the high-temperature modulus of bituminous paving, the solution method
It is simple to operate, extras need not be increased, therefore this method has obtained more and more extensive application.It is but used at present anti-
The price of rut agent is higher, limits the application of this method to a certain extent.
In addition, the high-temperature behavior of general anti-rut agent is preferable, cryogenic property is poor, so easily occurs when temperature is relatively low
Crack, and then cause its water stability, high-temperature behavior all poor, it is unfavorable for the popularization and application of anti-rut agent.
Therefore, in order to increase application of the anti-rut agent in bituminous paving, a kind of cheap and cryogenic property and high temperature are needed badly
The composition of all preferable anti-rut agent of performance.
The content of the invention
It is a primary object of the present invention to the composition and its preparation method for providing a kind of anti-rut agent, preparing it, with solution
The problem of poor performance at low temperatures of anti-rut agent certainly of the prior art.
To achieve these goals, according to an aspect of the invention, there is provided a kind of group for being used to prepare anti-rut agent
Compound, by weight percentage, said composition include：The tetrahydrofuran insoluble of 40%~60% coal liquefaction pitch；4%~
12% asphalt；18%~40% polyethylene and/or polypropylene；And 5%~10% rubber powder.
Further, by weight percentage, above-mentioned composition includes：The tetrahydrochysene furan of 55%~60% coal liquefaction pitch
Mutter insoluble matter；10%~12% asphalt；18%~27% polyethylene and/or polypropylene；And 8%~10% glue
Powder.
Further, above-mentioned polyethylene and/or above-mentioned polypropylene are that graininess recovery of the softening point higher than 100 DEG C is waste and old poly-
Ethene and/or polypropylene.
Further, the mesh number of above-mentioned rubber powder is between 30~80 mesh.
Further, above-mentioned asphalt is No. 70 pitches or No. 90 pitches.
According to another aspect of the present invention, there is provided a kind of anti-rut agent, the anti-rut agent by above-mentioned composition prepare and
Into.
According to another aspect of the present invention, there is provided a kind of preparation method of anti-rut agent, this method include：Step S1,
Combinations of the above thing is subjected to mixed refining process, forms anti-rut agent.
Further, above-mentioned steps S1 includes：Step S11, above-mentioned composition is preheated to 80~110 DEG C, forms preheating
Mixture；And step S12, above-mentioned preheated mixture is subjected to mixed refining process at a temperature of 115~245 DEG C, forms anti-car
Rut agent.
Further, above-mentioned steps S12 also includes after mixed refining process：Above-mentioned anti-rut agent is extruded into the anti-car of strip
The process of rut agent；And the process of granular anti-rut agent is cut into after above-mentioned strip anti-rut agent is cooled down.
Further, above-mentioned steps S12 carries out above-mentioned mixed refining process and above-mentioned extrusion using screw extruder, preferably above-mentioned
The rotating speed of screw extruder is in 30~60r/min.
Further, above-mentioned preparation method also prepares the tetrahydrofuran insoluble of coal liquefaction pitch using soxhlet type
The step of.
Composition using the present invention is that the dynamic stability of the sign high-temperature behavior of anti-rut agent made of raw material is higher, water
Stability is also higher, and it is larger to characterize the maximum flexural-tensile strain of cryogenic property, and other technologies index disclosure satisfy that portion of Ministry of Communications
Issue standard JTGF40-2004《Standard specification for construction and acceptance of highway asphalt pavement》Requirement；And the composition of the application, not only to coal liquid
The tetrahydrofuran insoluble changed in residue is recycled, and is turned waste into wealth, is avoided the waste of resource, and it is anti-can also to reduce production
The cost of rut agent.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention is described in detail below with reference to embodiment.
As understood by those skilled in the art, the rubber powder of the application refers to waste rubber goodses and handles and obtain through crushing and processing
The powdered elastomeric material arrived.
In a kind of exemplary embodiment of the application, there is provided a kind of composition, count by weight percentage, said composition bag
Include：The tetrahydrofuran insoluble of 40%~60% coal liquefaction pitch；4%~12% asphalt；18%~40% it is poly-
Ethene and/or polypropylene；And 5%~10% rubber powder.
The tetrahydrofuran insoluble prepared in the composition of anti-rut agent comes from coal liquefaction residue, and realizing turns waste into wealth
Purpose, and its softening point is more than 180 DEG C, can effectively improve the anti-rut behavior of compound；General anti-rut agent can be with
The high-temperature behavior of compound is improved, but have ignored cryogenic property, crack easily occurs when temperature is relatively low, once there is moisture to enter
Enter, then influence its water stability；After water stability declines, the adhesion of asphalt and aggregate is peeled off, then when temperature is higher,
Its anti-rut behavior can also decline therewith, and the combination species that the application prepares anti-rut agent add rubber powder, and it can change
During kind compound high-temperature behavior, while its cryogenic property is taken into account, improve maximum flexural-tensile strain of the anti-rut agent in low temperature, make
It is less prone to crack in low temperature, the defects of overcoming the anti-rut agent poor performance at low temperatures being prepared in the prior art,
And the rubber powder is as obtained from waste rubber goodses are handled through crushing and processing, is also beneficial to control being produced into for anti-rut agent
This；Asphalt in composition serves the effect of binding agent, and each component is bonded together；Polyethylene and/or polypropylene
Molecular weight is big, has good heat resistance and cold resistance, and chemical stability is good, also has very high rigidity and stretching strong
Degree, due to its unique property, can play a part of embedded squeezing and reinforcement in compound.
It follows that when the use of said composition being that raw material prepares anti-rut agent, not only to the tetrahydrochysene furan in coal liquefaction residue
Insoluble matter of muttering is recycled, and is turned waste into wealth, and avoids the waste of resource, can also reduce production anti-rut agent cost and
The cryogenic property of manufactured anti-rut agent is preferable with high-temperature behavior, and water stability is also higher, and other technologies index can
Meet Ministry of Communications ministry standard JTG F40-2004《Standard specification for construction and acceptance of highway asphalt pavement》Requirement.
In order to further improve the performance of anti-rut agent, including the performance such as its high-temperature behavior, cryogenic property and water stability,
It is preferred that by weight percentage, above-mentioned composition includes：The tetrahydrofuran insoluble of 55%~60% coal liquefaction pitch；10%
~12% asphalt；18%~27% polyethylene and/or polypropylene；And 8%~10% rubber powder.
In a kind of preferred embodiment of the application, above-mentioned polyethylene and/or above-mentioned polypropylene are that softening point is higher than 100 DEG C
Graininess reclaims waste polyethylene and/or polypropylene.On the one hand such polyethylene and polypropylene can reduce production Rut resistance
The cost of agent；On the other hand, the higher component of softening point is more advantageous to improve the high temperature stability of anti-rut agent, therefore adopts
The high-temperature behavior of anti-rut agent can further be improved with polyethylene of the softening point higher than 100 DEG C and polypropylene.
Present techniques personnel have found that rubber powder mesh number is bigger, and the cryogenic property improvement to pitch is more notable, but increases glue
Powder mesh number can accordingly increase the processing cost of rubber powder, in order to improve the cryogenic property of the anti-rut agent as made from above-mentioned composition,
And the factor of low cost is taken into account, the mesh number of preferably above-mentioned rubber powder is between 30~80 mesh.
In another preferred embodiment of the application, above-mentioned asphalt is No. 70 pitches or No. 90 pitches.It is such
Asphalt can be preferably in binding compositions the technique such as each component, the extrusion being more beneficial in anti-rut agent production.
In another exemplary embodiment of the application, there is provided a kind of anti-rut agent, the anti-rut agent is by combinations thereof
Thing is prepared.
Above-mentioned anti-rut agent is prepared by combinations of the above thing by processing, on the one hand, the production of the anti-rut agent
Cost is relatively low, is more beneficial for the extensive use of anti-rut agent；Still further aspect, the high-temperature behavior of the anti-rut agent preferably, low temperature
Better performances, water stability are also higher, also, the other technologies index of the anti-rut agent disclosure satisfy that Ministry of Communications's ministry standard
JTGF40-2004《Standard specification for construction and acceptance of highway asphalt pavement》Requirement.
In another exemplary embodiment of the application, there is provided a kind of preparation method of anti-rut agent, this method will be upper
The composition stated carries out mixed refining process, forms anti-rut agent.
Above-mentioned preparation method technique is simple and convenient to operate, and equipment requirement is low, is advantageous to improve the production effect of anti-rut agent
Rate, and then be advantageous to its extensive use in asphalt concrete pavement, on the other hand, this method uses combinations of the above thing as original
Material, the better performances for the anti-rut agent being prepared, high-temperature behavior is preferable, and cryogenic property is preferable, and water stability is also higher.
In another exemplary embodiment of the application, preferably above-mentioned steps S1 includes：Step S11, by above-mentioned composition
80~110 DEG C are preheated to, forms preheated mixture；And step S12, by above-mentioned pre- hot mixing at a temperature of 115~245 DEG C
Thing carries out mixed refining process, forms anti-rut agent.The purpose of preheating is to be able to preferably mix each component, if directly entered
Row mixed refining process, easily there is the problem of mixing is uneven, 80~110 DEG C of preheating temperature scope can make pitch have certain flowing
Property, while other components can soften, and contribute to the mixing of each component；Melting temperature scope is kneaded temperature at 115~245 DEG C
Degree is higher, and each component mixing is better, because polyethylene and polyacrylic softening point are higher, when polyethylene and/or polypropylene content
When more, composition softening point is higher, should use higher temperature.
In order to facilitate the application of anti-rut agent so that anti-rut agent is more widely used in asphalt concrete pavement, preferably
Above-mentioned steps S12 also includes after mixed refining process：Above-mentioned anti-rut agent is extruded into the process of strip anti-rut agent；And will
The process of granular anti-rut agent is cut into after above-mentioned strip anti-rut agent cooling.
In another preferred embodiment of the application, above-mentioned steps S12 carries out above-mentioned mixed refining process using screw extruder
With above-mentioned extrusion.The preparation of anti-rut agent is carried out using screw extruder, the production efficiency of anti-rut agent can be improved.
In order that composition evenly and is sufficiently carried out mixed refining process, the strip anti-rut agent of extrusion is more uniform, on
The rotating speed of screw extruder is stated in 30~60r/min.
In another preferred embodiment of the application, above-mentioned preparation method also prepares coal liquefaction using soxhlet type
The step of tetrahydrofuran insoluble of pitch.It is the tetrahydrochysene that a kind of more ripe extracting prepares coal liquefaction pitch using soxhlet type
The method of furans insoluble matter, the efficiency for the tetrahydrofuran insoluble for preparing coal liquefaction pitch can be further improved, and then
Raising prepares the efficiency of anti-rut agent.
In order that the technical scheme of the application can be more clearly understood in those skilled in the art, below with reference to implementation
Example prepares the method for anti-rut agent to the composition using anti-rut agent of the application and prepared anti-rut agent is carried out in detail
Explanation.
Embodiment 1
Prepare in the composition of 1000g anti-rut agents comprising coal liquefaction asphaltic residue 450g, asphalt 120g, waste and old poly-
Ethene 350g and shoddy 80g.The parameter of each composition and weight ratio are as shown in table 1 in concrete composition.
Each component is preheated at 100 DEG C first, is then added into screw extruder, is kneaded, be extruded at 180 DEG C
Bar, then by room temperature water cooling, reuse the anti-rut agent particle that comminutor cuts into 3mm or so.Preheating temperature and mixing
Temperature is as shown in table 2.
The anti-rut agent being prepared is added with 0.3wt% ratio Rut resistance experiment is carried out in bituminous concrete,
60 DEG C, under conditions of 0.7 ± 0.05Mpa of wheel load, the dynamic stability for characterizing its high-temperature behavior is carried out using rut experimental method
Test；Under conditions of 25 DEG C, loading speed 50mm/min, the jelly using freeze-thaw split experimental method to sign water stabilizing
Melt diametral compression test retained strength ratio to be tested；Under conditions of -10 DEG C, loading speed 50mm/min, using compound low temperature
Crooked experiment method is tested the maximum flexural-tensile strain for characterizing cryogenic property.Test result is shown in Table 3.
Embodiment 2
Prepare in the composition of 1000g anti-rut agents comprising coal liquefaction asphaltic residue 400g, asphalt 100g, waste and old poly-
Ethene 400g, shoddy 100g.The performance parameter of each composition and weight ratio are as shown in table 1 in concrete composition.
Composition is preheated at 100 DEG C first, is then added into screw extruder, is kneaded, be extruded at 190 DEG C
Bar, then by room temperature water cooling, reuse the anti-rut agent particle that comminutor cuts into 3mm or so.Preheating temperature and mixing
Temperature is as shown in table 2.
The anti-rut agent being prepared is added with 0.3wt% ratio Rut resistance experiment is carried out in bituminous concrete,
60 DEG C, under conditions of 0.7 ± 0.05Mpa of wheel load, the dynamic stability for characterizing its high-temperature behavior is carried out using rut experimental method
Test；Under conditions of 25 DEG C, loading speed 50mm/min, the jelly using freeze-thaw split experimental method to sign water stabilizing
Melt diametral compression test retained strength ratio to be tested；Under conditions of -10 DEG C, loading speed 50mm/min, using compound low temperature
Crooked experiment method is tested the maximum flexural-tensile strain for characterizing cryogenic property.Test result is shown in Table 3.
Embodiment 3
Prepare in the composition of 1000g anti-rut agents comprising coal liquefaction asphaltic residue 500g, asphalt 100g, waste and old poly-
Propylene 320g, shoddy 80g.The performance parameter of each composition and weight ratio are as shown in table 1 in concrete composition.
Each component is preheated at 100 DEG C first, is then added into screw extruder, is kneaded, be extruded at 195 DEG C
Bar, then by room temperature water cooling, reuse the anti-rut agent particle that comminutor cuts into 3mm or so.Preheating temperature and mixing
Temperature is as shown in table 2.
The anti-rut agent being prepared is added with 0.3wt% ratio Rut resistance experiment is carried out in bituminous concrete,
60 DEG C, under conditions of 0.7 ± 0.05Mpa of wheel load, the dynamic stability for characterizing its high-temperature behavior is carried out using rut experimental method
Test；Under conditions of 25 DEG C, loading speed 50mm/min, the jelly using freeze-thaw split experimental method to sign water stabilizing
Melt diametral compression test retained strength ratio to be tested；Under conditions of -10 DEG C, loading speed 50mm/min, using compound low temperature
Crooked experiment method is tested the maximum flexural-tensile strain for characterizing cryogenic property.Test result is shown in Table 3.
Embodiment 4
Prepare and include coal liquefaction asphaltic residue 550g, asphalt 120g, waste and old in the composition of 1000g anti-rut agents
Polypropylene 230g and shoddy 100g.The performance parameter of each composition and weight ratio are as shown in table 1 in concrete composition.
Each component is preheated at 100 DEG C first, is then added into screw extruder, is kneaded, be extruded at 200 DEG C
Bar, then by room temperature water cooling, reuse the anti-rut agent particle that comminutor cuts into 3mm or so.Preheating temperature and mixing
Temperature is as shown in table 2.
The anti-rut agent being prepared is added with 0.3wt% ratio Rut resistance experiment is carried out in bituminous concrete,
60 DEG C, under conditions of 0.7 ± 0.05Mpa of wheel load, the dynamic stability for characterizing its high-temperature behavior is carried out using rut experimental method
Test；Under conditions of 25 DEG C, loading speed 50mm/min, the jelly using freeze-thaw split experimental method to sign water stabilizing
Melt diametral compression test retained strength ratio to be tested；Under conditions of -10 DEG C, loading speed 50mm/min, using compound low temperature
Crooked experiment method is tested the maximum flexural-tensile strain for characterizing cryogenic property.Test result is shown in Table 3.
Embodiment 5
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using side same as the previously described embodiments
Method is processed to composition, is made anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2.
The anti-rut agent being prepared is added with 0.3wt% ratio Rut resistance experiment is carried out in bituminous concrete,
60 DEG C, under conditions of 0.7 ± 0.05Mpa of wheel load, the dynamic stability for characterizing its high-temperature behavior is carried out using rut experimental method
Test；Under conditions of 25 DEG C, loading speed 50mm/min, the jelly using freeze-thaw split experimental method to sign water stabilizing
Melt diametral compression test retained strength ratio to be tested；Under conditions of -10 DEG C, loading speed 50mm/min, using compound low temperature
Crooked experiment method is tested the maximum flexural-tensile strain for characterizing cryogenic property.Test result is shown in Table 3.
Embodiment 6
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2, by the way of above-described embodiment is compatible
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Embodiment 7
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2, by the way of above-described embodiment is compatible
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Embodiment 8
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2, by the way of above-described embodiment is compatible
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Embodiment 9
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2, by the way of above-described embodiment is compatible
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Embodiment 10
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2, by the way of above-described embodiment is compatible
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Embodiment 11
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing enters shown in table 2, by the way of above-described embodiment is compatible with the temperature being kneaded
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Comparison example 1
The performance parameter weight ratio of each composition is shown in Table 1 in concrete composition, using same above-described embodiment identical side
Method prepares anti-rut agent, and preheating temperature during processing and the temperature being kneaded are as shown in table 2, by the way of above-described embodiment is compatible
The anti-rut agent being prepared is tested, test result is shown in Table 3.
Table 1
Table 2
| Preheating temperature (DEG C) | Melting temperature (DEG C) | |
| Embodiment 1 | 100 | 180 |
| Embodiment 2 | 100 | 190 |
| Embodiment 3 | 100 | 195 |
| Embodiment 4 | 100 | 200 |
| Embodiment 5 | 80 | 115 |
| Embodiment 6 | 110 | 245 |
| Embodiment 7 | 100 | 200 |
| Embodiment 8 | 100 | 200 |
| Embodiment 9 | 100 | 200 |
| Embodiment 10 | 100 | 260 |
| Embodiment 11 | 120 | 200 |
| Comparative example 1 | 100 | 200 |
Table 3
From the test result of above-mentioned table 3, when the tetrahydrofuran insoluble weight ratio of the coal liquefaction pitch in composition
Between 40wt%~60wt%, the weight ratio of asphalt is between 4wt%~12wt%, polyethylene and/or polyacrylic
Weight than between 18wt%~40wt%, the weight ratio of rubber powder between 5%~10%, polyethylene and/or the polypropylene
It is higher than 100 DEG C for softening point, the mesh number of rubber powder is between 30~80 mesh, when asphalt is No. 70 pitches or No. 90 pitch, system
The better performances of standby obtained anti-rut agent, characterize the dynamic stability of high-temperature behavior between 5389~5958 times/mm, and water is stable
Property characterizes the maximum flexural-tensile strain of cryogenic property between 2210~2314 μ ε, and prepare anti-car between 84%~91%
The cost of rut agent have dropped 8~12 yuan/m3；Between 84~110 DEG C, melting temperature exists preheating temperature when preparing anti-rut agent
When between 115~245 DEG C, the better performances for the anti-rut agent being prepared, characterize the dynamic stability of high-temperature behavior 5389~
Between 5958 times/mm, water stability characterizes the maximum flexural-tensile strain of cryogenic property 2206~2314 between 84%~91%
Between μ ε, and the cost for preparing anti-rut agent have dropped 8~12 yuan/m3。
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
1) the combinations of the above thing of the application is the raw material for making anti-rut agent, on the one hand, the tetrahydrofuran in the raw material
Insoluble matter comes from coal liquefaction residue, and rubber powder is also obtained from waste rubber goodses are handled through crushing and processing, is not only become useless
For treasured, and reduce the cost of production anti-rut agent；On the other hand, made of said composition anti-rut agent cryogenic property
Preferably, high-temperature behavior is preferable, and water stability is also higher, and other technologies index disclosure satisfy that Ministry of Communications's ministry standard
JTGF40-2004《Standard specification for construction and acceptance of highway asphalt pavement》Requirement.
2) the preparation method technique of the application is simple and convenient to operate, and equipment requirement is low, is advantageous to improve the life of anti-rut agent
Efficiency is produced, and then is advantageous to its extensive use in asphalt concrete pavement, on the other hand, this method uses combinations of the above thing
For raw material, the better performances for the anti-rut agent being prepared, cryogenic property is preferable, and high-temperature behavior is preferable, and water stability
It is higher.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
1. a kind of composition for being used to prepare anti-rut agent, it is characterised in that by weight percentage, the composition includes：
The tetrahydrofuran insoluble of 40%~60% coal liquefaction pitch；
4%~12% asphalt；
18%~40% polyethylene and/or polypropylene；And
5%~10% rubber powder.
2. composition according to claim 1, it is characterised in that by weight percentage, the composition includes：
The tetrahydrofuran insoluble of 55%~60% coal liquefaction pitch；
10%~12% asphalt；
18%~27% polyethylene and/or polypropylene；And
8%~10% rubber powder.
3. composition according to claim 1 or 2, it is characterised in that the polyethylene and/or the polypropylene are softening
Graininess recovery waste polyethylene and/or polypropylene of the point higher than 100 DEG C.
4. composition according to claim 1 or 2, it is characterised in that the mesh number of the rubber powder is between 30~80 mesh.
5. composition according to claim 1 or 2, it is characterised in that the asphalt is No. 70 pitches or No. 90 drips
It is blue or green.
A kind of 6. anti-rut agent, it is characterised in that anti-rut agent composition system as any one of claim 1 to 5
It is standby to form.
A kind of 7. preparation method of anti-rut agent, it is characterised in that including：
Step S1, the composition any one of claim 1 to 5 is subjected to mixed refining process, forms anti-rut agent.
8. preparation method according to claim 7, it is characterised in that the step S1 includes：
Step S11, the composition is preheated to 80~110 DEG C, forms preheated mixture；And
Step S12, the preheated mixture is subjected to mixed refining process at a temperature of 115~245 DEG C, forms anti-rut agent.
9. preparation method according to claim 8, it is characterised in that the step S12 also includes after mixed refining process：
The anti-rut agent is extruded into the process of strip anti-rut agent；And
The process of granular anti-rut agent is cut into after the strip anti-rut agent is cooled down.
10. preparation method according to claim 9, it is characterised in that the step S12 carries out institute using screw extruder
State mixed refining process and the extrusion.
11. preparation method according to claim 10, it is characterised in that the rotating speed of the screw extruder is in 30~60r/
min。
12. preparation method according to claim 7, it is characterised in that the preparation method is also using soxhlet type
The step of preparing the tetrahydrofuran insoluble of coal liquefaction pitch.
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