A method of it is built the road using coal directly-liquefied residue
Technical field
The invention belongs to field of road, and in particular to a method of it is built the road using coal directly-liquefied residue.
Background technique
As international energy contention is increasingly fierce, oil price constantly breaks through the new highest record in history, for strategic reserves of energy
Demand, Oil Projects also accelerated development is substituted in global range.China's energy resource structure status is coal resources relative abundance, stone
Oil, natural gas are relatively deficient.With the rapid development of the national economy, China constantly increases the consumption figure of oil product, significantly
It has been more than the growth rate of same period crude oil production.Domestic petroleum production is unable to satisfy demand, leads to China's oil import volume
It is all year by year to increase.Coal resources abundant are made full use of, development of coal liquefaction technology is to reduce to depend on external crude oil unduly, is alleviated
One of China's oil shortage of resources, the important channel of oil product supply and demand pressure, while being also to improve coal resources in China
Utilization rate mitigates pollution that caused by coal burning, promotes the important measure of the energy, economy, harmonious development.
Coal oil (Coal-to-liquids, CTL) be using coal as raw material, by chiral process produce oil product and
One technology of petrochemicals includes two kinds of technology paths of DCL/Direct coal liquefaction and ICL for Indirect Coal Liquefaction.DCL/Direct coal liquefaction be by
Coal by catalytic hydrogenation direct liquefaction synthesizing liquid HC fuel, and removes the atoms such as sulphur, nitrogen, oxygen under high-temperature and high-pressure conditions.
1.4 tons of liquefied residues will be generated by generating one ton of oil using DCL/Direct coal liquefaction method, and coal liquefaction residue is a kind of high-carbon, high ash, height
The substance of sulphur, its appearance is in solid asphalt shape at room temperature, and softening point is about 180 DEG C or so, and organic species therein include
Heavy coal liquids, bitumen and unconverted coal;Inorganic matter includes minerals and additional catalyst in coal.It is right
It is very huge in the yield of large-scale coal liquification device, coal liquefaction residue, such as one phase of China's Shenhua Group DCL/Direct coal liquefaction, 2,500,000 t/
A tank oil commercialization demonstration plant can produce 3,880,000 t/a of coal liquefaction residue under running at full capacity state, and so a large amount of coal is straight
If connecing liquefied residue does not find ideal processing technique or method, environment will certainly be caused seriously to pollute, so no matter
Consider that the research on utilization to coal directly-liquefied residue is all that coal liquefaction craft is opened from energy strategy angle or environmental protection angle
The important component of hair.Since the bitumen content in coal directly-liquefied residue is higher, it is very suitable to prepare
Pipeline material, and its cost of material is well below asphalt material.
The Chinese invention patent of Patent No. 200610012547.9 discloses a kind of road asphalt modifier, which will
Coal liquefaction residue is directly as road asphalt modifier, and when preparing modified pitch, coal directly-liquefied residue modifying agent accounts for modification
The 5-10% of pitch weight, the invention is simple, it is optimization coal directly-liquefied residue is utilized, still, the coal liquid as modifying agent
Change residue additive amount is very small, and after coal liquefaction residue content improves again, due to pitch embrittlement, cryogenic property is bad, it is difficult to full
Sufficient pavement performance requirement.The Chinese patent of Patent No. 201010216320.2 discloses that a kind of coal directly-liquefied residue is compound to be changed
Property pitch directly prepared by coal directly-liquefied residue by the way that oil content and colloid are added in the coal directly-liquefied residue of melting
At modified pitch, the modified asphalt manufacturing simple process is cheap, still, ingredient and drip due to coal directly-liquefied residue
Green ingredient difference is very big, and coal directly-liquefied residue is directly prepared into modified pitch, and performance indexes is difficult to reach modified
The requirement of pitch;The Chinese patent of Patent No. 201010198795.3 discloses a kind of coal directly-liquefied residue, and to prepare pitch mixed
Coal directly-liquefied residue, asphalt, polyethylene are crushed respectively, are connect by the preparation method of solidifying soil surface anti-rut agent, this method
Mixed according to certain weight ratio, finally by mixture extruding pelletization, the anti-rut agent of 2-5mm solid particle forms is made, should
The anti-rut agent of invention can significantly improve the anti-rut behavior of bituminous pavement, but the anti-rut agent of the invention is needed using petroleum
Pitch is unable to improve other performances of bituminous concrete as raw material.
Summary of the invention
The purpose of the present invention is aiming at the problems existing in the prior art, provide a kind of to build the road using coal directly-liquefied residue
Method, the present invention is used to the asphalt built the road and uses mix using the pitch that coal directly-liquefied residue is prepared as primary raw material
Feed additives are closed, 15% asphalt content can be saved;The physical properties of asphalt that the present invention is used to build the road can be with
Reach or better than modified asphalt concrete, greatly improves asphalt anti-cracking performance and anti-rut behavior.
To achieve the above object, the present invention provides a kind of method built the road using coal directly-liquefied residue, including walks as follows
It is rapid:
1), asphalt mixture additive is prepared with coal directly-liquefied residue, crosslinking agent, promotor, adhesive, plasticizer;
2), into the gathering materials of preheating while the pitch of asphalt mixture additive and fusing is added, stirs evenly, is made mixed
Close material;
3) miberal powder, is added into mixed material, stirs evenly, asphalt is made;
4), the bituminous mixture laying on roadbed and is compacted.
Wherein, crosslinking agent described in step 1) is alkyl phenolic resin, p-tert-butylphenol-acetylene resin, chlorinated paraffin
One of resin, C 9 petroleum resin or polyterpene resin are a variety of, preferably alkyl phenolic resin.Crosslinking agent of the invention can
With in intermolecular bridging action, so that being mutually bonded multiple molecules is cross-linked into reticular structure.
Wherein, promotor described in step 1) is octadecanoid acid, sulfenamide type accelerators, thuriam acceserator, oxygen
Change one of zinc or magnesia or a variety of, preferably octadecanoid acid or sulfenamide type accelerators.Promotor of the invention can
To improve surface-active of each component in conjunction with building stones.
Wherein, adhesive described in step 1) be one of random polypropylene, polyvinyl butyral or reclaimed rubber or
It is a variety of.The elastic recovery capability that adhesive of the invention can increase viscosity, improve asphalt.
Wherein, plasticizer described in step 1) is one of paraffin oil, castor oil, tall oil, retinal or coal tar
Or a variety of, preferably paraffin oil.Plasticizer of the invention can make crosslinking agent, promotor, adhesive and coal directly-liquefied residue
It merges into each other, dispersion is more evenly.
Wherein, pitch is prepared with coal directly-liquefied residue, crosslinking agent, promotor, adhesive, plasticizer described in step 1)
Mixture additive includes the following steps:
A elemental analysis) is carried out to coal directly-liquefied residue, by the element of obtained elemental analysis result and high-quality asphalt point
Analysis result is compared;
B) according to comparison result determine coal directly-liquefied residue, crosslinking agent, promotor, adhesive, plasticizer weight match
Than;
C mixed processing is carried out after) crushing coal directly-liquefied residue, crosslinking agent, promotor, adhesive respectively, obtains
One mixture, it is spare;
D plasticizer) is preheated to 60-90 DEG C, obtains viscous liquid;
E) into the first mixture be added step D) made from viscous liquid carry out kneading processing, obtain the second mixing
Object;
F) by the second mixture extruding pelletization, the asphalt mixture additive is obtained.
Wherein, step C) described in coal directly-liquefied residue, crosslinking agent, promotor, the smashed granularity of adhesive be 80-
120 mesh.
Wherein, step C) described in mixed processing under agitation in carry out.
In particular, the mixing speed of the mixed processing is 30-50r/min, mixing time 10-25min.
Wherein, step D) described in plasticizer preheating temperature be 60-90 DEG C, preferably 65-85 DEG C, further preferably
70-80℃。
Wherein, step E) described in mediate processing temperature be 80-120 DEG C, mediate processing time be 3-5min.
Wherein, step F) described in granulation partial size be 2.5-3.5mm.
Wherein, further include step G) asphalt mixture additive after granulation is subjected to cooling, is packed.
In particular, the temperature of the cooling is 0-20 DEG C.
Wherein, the weight of the coal directly-liquefied residue, crosslinking agent, promotor, adhesive and plasticizer are as follows:
Coal directly-liquefied residue: 55-90;
Crosslinking agent: 10-35;
Promotor: 0.01-0.45;
Adhesive: 5-15;
Plasticizer: 0.5-5.
In particular, the weight of the coal directly-liquefied residue, crosslinking agent, promotor, adhesive and plasticizer are as follows:
Coal directly-liquefied residue: 60-85;
Crosslinking agent: 15-30;
Promotor: 0.02-0.40;
Adhesive: 7-13;
Plasticizer: 1.0-4.5.
Wherein, the preheating temperature gathered materials described in step 2) is 190-200 DEG C.
In particular, preheating time >=12 hour.
Wherein, gathering materials with miberal powder (being referred to as mineral aggregate) in the present invention is granite, the composition to gather materials are as follows: 15~
20mm rubble, 10~15mm rubble, 5~10mm rubble, 3~5mm rubble, 0~3mm aggregate chips.The screening result to gather materials is shown in
Table 1-5.
Table 1.15-20mm gathers materials screening result
Sieve diameter (mm) |
26.5 |
19.0 |
16.0 |
13.2 |
9.5 |
Percent of pass (%) |
100.0 |
95.7 |
38.5 |
2.2 |
0.1 |
Table 2.10-15mm gathers materials screening result
Sieve diameter (mm) |
19.0 |
16.0 |
13.2 |
9.5 |
4.75 |
Percent of pass (%) |
100.0 |
99.1 |
84.2 |
11.6 |
0.3 |
Table 3.5-10mm gathers materials screening result
Sieve diameter (mm) |
13.2 |
9.5 |
4.75 |
2.36 |
Percent of pass (%) |
100.0 |
91.8 |
4.4 |
0.3 |
Table 4.3-5mm gathers materials screening result
Sieve diameter (mm) |
9.5 |
4.75 |
2.36 |
1.18 |
0.6 |
Percent of pass (%) |
100.0 |
88.2 |
2.5 |
0.7 |
0.5 |
Table 5.0-3mm gathers materials screening result
Sieve diameter (mm) |
4.75 |
2.36 |
1.18 |
0.6 |
0.3 |
0.15 |
0.075 |
Percent of pass (%) |
100.0 |
97.0 |
77.7 |
65.8 |
48.2 |
26.9 |
5.1 |
The aggregate mix proportion is for example shown in table 6:
6. aggregate mix proportion example of table
Mineral aggregate specification (mm) |
15-20mm |
10-15mm |
5-10mm |
3-5mm |
0-3mm |
Miberal powder |
Ratio (%) |
25 |
17 |
19 |
17 |
17 |
5 |
Wherein, the temperature of molten asphalt described in step 2) is 100-110 DEG C, preferably 105 DEG C.
Wherein, the weight ratio of asphalt mixture additive described in step 2) and pitch is (25-40): (65-85).
Wherein, whipping temp described in step 2) is 170-185 DEG C, preferably 180 DEG C;Mixing time is 40-50s,
Preferably 45s.
Wherein, whipping temp described in step 3) is 170-185 DEG C, preferably 180 DEG C;Mixing time is 20-40s,
Preferably 30s.
Wherein, the total weight of the pitch and asphalt mixture additive with gather materials and the ratio between the total weight of miberal powder is
(4.1-5.8): 100.
The method of the present invention has the advantages that
1) asphalt of the present invention for building the road uses the pitch prepared using coal directly-liquefied residue as primary raw material
Mixture additive, not only realizes the efficient utilization of coal liquefaction residue, but also protects environment.
2) after being added to asphalt mixture additive in asphalt of the present invention for building the road, 15% or more can be saved
Asphalt stock, reduce costs.
3) asphalt all technical of the present invention for building the road can satisfy JTG F40-2004 " highway
Asphalt Pavement Construction Technique specification " requirement, the cracking resistance and rutting resistance of bituminous concrete, dynamic stability can be significantly improved
Degree reaches 8000 times/mm or more.
4) asphalt preparation method of the present invention for building the road is simple, cheap, mixes in traditional pitch
Without increasing working procedure in material manufacturing technique, especially suitable for high temperature area and heavy traffic section.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent.But examples are merely exemplary for these, and it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
Mineral aggregate in the present invention is granite, including is gathered materials and miberal powder, the composition to gather materials are as follows: 15~20mm rubble,
10~15mm rubble, 5~10mm rubble, 3~5mm rubble, 0~3mm aggregate chips, the screening result to gather materials is referring to table 1-5;Institute
Aggregate mix proportion example is stated referring to table 6.
Pitch used in the present invention is 70# matrix pitch, is provided, is met by petroleum dyestuff pitch Co., Ltd in Qinhuangdao
70#, 90# or 110# road asphalt of JTG F40-2004 " Ministry of Communications's bi tumenf orr oad technical requirements " is suitable for this hair
It is bright.
Specifically, the method that the present invention is built the road using coal directly-liquefied residue is as follows:
1), prepare asphalt mixture additive (referring specifically to embodiment 1-14);
2), using mineral aggregate, pitch and step 1) prepare asphalt mixture additive prepare asphalt (referring specifically to
Embodiment 15-21);
3), the bituminous mixture laying for being prepared step 2) using paver is on roadbed;
4), asphalt is compacted using road roller,.
Embodiment 1 prepares asphalt mixture additive
1) elemental analysis is carried out to coal directly-liquefied residue, by the element of obtained elemental analysis result and high-quality asphalt point
Analysis result is compared;
2) according to comparison result determine coal directly-liquefied residue, crosslinking agent, promotor, adhesive, plasticizer weight match
Than;
3) prepare raw material (kg) according to following weight proportion:
Coal directly-liquefied residue 55, alkyl phenolic resin 35, octadecanoid acid 0.01, Atactic Polypropelene 5, paraffin oil 0.5;
Coal directly-liquefied residue, alkyl phenolic resin, octadecanoid acid, Atactic Polypropelene are passed through into Raymond mill respectively
At 80 mesh powders;
4) by coal directly-liquefied residue powder, alkyl phenolic resin powder, octadecanoid acid powder and Atactic Polypropelene powder
End is placed in high-speed mixer, is stirred mixing, obtains the first mixture;
Wherein, the speed of stirring is 30r/min, and the time of stirring is 25min;
5) paraffin oil is heated to 60 DEG C;
6) paraffin oil after heating is added in the first mixture carries out kneading processing, obtains the second mixture;
Wherein, the temperature for mediating processing is 80 DEG C, and the time for mediating processing is 5min;
7) the second mixture is placed in extruding pelletization in pelletizer, obtains additive pellet;Wherein, the partial size of the pellet
For 2.5-3.5mm.
6) additive pellet is cooling, packing to get, wherein the temperature of the cooling is 0-20 DEG C.
Embodiment 2 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 90, p- tert-butyl benzene
Phenol-acetylene resin 10, sulfenamide type accelerators 0.45, polyvinyl butyral 7, castor oil 1;By coal directly-liquefied residue,
P-tert-butylphenol-acetylene resin, sulfenamide type accelerators, polyvinyl butyral powder are broken into 90 mesh powders;Step 4)
By coal directly-liquefied residue powder, p-tert-butylphenol-acetylene resin powder, sulfenamide type accelerators powder, polyvinyl alcohol
Butyral powder, which is added in high-speed mixer, is stirred mixing, obtains the first mixture;Wherein, the speed of stirring is 50r/
Min, the time of stirring are 10min;Castor oil is heated to 75 DEG C by step 5);After heating is added in step 6) in the first mixture
Castor oil carry out kneading processing, obtain the second mixture;Wherein, the temperature for mediating processing is 120 DEG C, mediates the time of processing
Except 3min, remaining is same as Example 1.
Embodiment 3 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 60, chlorinated paraffin resin
15, thuriam acceserator 0.05, reclaimed rubber 15, coal tar 5;By coal directly-liquefied residue, chlorinated paraffin resin, thiurams
Promotor, reclaimed rubber are respectively crushed into 100 mesh powders by Raymond mill;Step 4) is by coal directly-liquefied residue powder, chlorination
Paraffin resin powder, thuriam acceserator powder, reclaimed rubber powder are added in high-speed mixer and are stirred, and obtain first
Mixture;Wherein, the speed of stirring is 45r/min, and the time of stirring is 12min;Coal tar is heated to 65 DEG C by step 5);Step
The rapid coal tar 6) being added after heating in the first mixture carries out kneading processing, obtains the second mixture;Wherein, kneading is handled
Temperature be 85 DEG C, mediate processing time be 3.5min except, remaining is same as Example 1.
Embodiment 4 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 70, C 9 petroleum resin
20, zinc oxide 0.3, reclaimed rubber 10, paraffin oil 2;Coal directly-liquefied residue, C 9 petroleum resin, zinc oxide, reclaimed rubber are passed through
Raymond mill is respectively crushed into 110 mesh powders;Step 4) by coal directly-liquefied residue powder, C 9 petroleum resin powder, oxidation
Zinc powder, reclaimed rubber powder are added in high-speed mixer and are stirred, and obtain the first mixture;Wherein, the speed of stirring is
40r/min, the time of stirring are 15min;Paraffin oil is heated to 70 DEG C by step 5);6) after heating being added in the first mixture
Paraffin oil carry out kneading processing, obtain the second mixture;Wherein, the temperature for mediating processing is 90 DEG C, mediates the time of processing
Except 4min, remaining is same as Example 1.
Embodiment 5 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 75, alkyl phenolic resin
25, magnesia 0.2, random polypropylene 12, tall oil 3;By coal directly-liquefied residue, alkyl phenolic resin, magnesia, random poly-
Propylene is respectively crushed into 120 mesh powders by Raymond mill;Step 4) is by coal directly-liquefied residue powder, alkyl phenolic resin powder
End, magnesium oxide powder, random polypropylene powder are added in high-speed mixer and are stirred, and obtain the first mixture;Wherein, it stirs
The speed mixed is 35r/min, and the time of stirring is 20min;Tall oil is heated to 75 DEG C by step 5);Step 6) is in the first mixing
Tall oil after heating is added in object carries out kneading processing, obtains the second mixture;Wherein, the temperature for mediating processing is 100 DEG C,
The time for mediating processing is except 4.5min, remaining is same as Example 1.
Embodiment 6 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 80, polyterpene resin 30, ten
Eight alkanoic acids 0.4, polyvinyl butyral 14, coal tar 4.5;By coal directly-liquefied residue, polyterpene resin, octadecanoid acid, poly- second
Enol butyral is respectively crushed into 120 mesh powders by Raymond mill;Step 4) is by coal directly-liquefied residue powder, polyterpene resin
Powder, octadecanoid acid powder, polyvinyl butyral powder end are added in high-speed mixer and are stirred, and obtain the first mixing
Object;Wherein, the speed of stirring is 32r/min, and the time of stirring is 23min, and coal tar is heated to 80 DEG C by step 5);Step 6)
Coal tar after heating is added in the first mixture carries out kneading processing, obtains the second mixture;Wherein, the temperature of processing is mediated
Degree is 110 DEG C, and the time for mediating processing is except 5min, remaining is same as Example 1.
Embodiment 7 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 65, alkyl phenolic resin
22, sulfenamide type accelerators 0.02, polyvinyl butyral 8, retinal 1.5;By coal directly-liquefied residue, alkyl phenolic tree
Rouge, sulfenamide type accelerators, polyvinyl butyral are respectively crushed into 80 mesh powders by Raymond mill;Step 4) is straight by coal
Connect liquefied residue powder, alkyl phenolic resin powder, sulfenamide type accelerators powder, polyvinyl butyral powder end are added to
It is stirred in high-speed mixer, obtains the first mixture;Wherein, the speed of stirring is 47r/min, and the time of stirring is
Retinal is heated to 85 DEG C by 10min, step 5);The retinal that step 6) is added after heating in the first mixture is mediated
Processing, obtains the second mixture;Wherein, mediate processing temperature be 95 DEG C, mediate processing time be 3.5min except, remaining
It is same as Example 1.
Embodiment 8 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 85, p- tert-butyl benzene
Phenol-acetylene resin 24, zinc oxide 0.03, reclaimed rubber 9, coal tar 3.5;By coal directly-liquefied residue, p-tert-butylphenol-second
Alkynes resin, zinc oxide, reclaimed rubber are respectively crushed into 90 mesh powders by Raymond mill;Step 4) is by coal directly-liquefied residue powder
It is mixed that end, p-tert-butylphenol-acetylene resin powder, Zinc oxide powder, reclaimed rubber powder are added to stirring in high-speed mixer
It closes, obtains the first mixture;Wherein, the speed of stirring is 37r/min, and the time of stirring is 22min, and step 5) adds coal tar
Heat is to 77 DEG C;The coal tar that step 6) is added after heating in the first mixture carries out kneading processing, obtains the second mixture;Its
In, the temperature for mediating processing is 105 DEG C, and the time for mediating processing is except 4min, remaining is same as Example 1.
Embodiment 9 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 72, C 9 petroleum resin
17, thuriam acceserator 0.04, polyvinyl butyral 13, paraffin oil 4.0;By coal directly-liquefied residue, nine petroleum tree of carbon
Rouge, thuriam acceserator, polyvinyl butyral are respectively crushed into 100 mesh powders by Raymond mill;Step 4) is straight by coal
Connect liquefied residue powder, C 9 petroleum resin powder, thuriam acceserator powder, polyvinyl butyral powder end are added to height
It is stirred in fast mixing machine, obtains the first mixture;Wherein, the speed of stirring is 35r/min, and the time of stirring is 25min,
Paraffin oil is heated to 72 DEG C by step 5);The paraffin oil that step 6) is added after heating in the first mixture carries out kneading processing,
Obtain the second mixture;Wherein, the temperature for mediating processing is 115 DEG C, and the time for mediating processing is remaining and implementation except 5min
Example 1 is identical.
Embodiment 10 prepares asphalt mixture additive
In addition to step 3) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 62, chlorinated paraffin resin
32, octadecanoid acid 0.35, reclaimed rubber 11, coal tar 2.5;By coal directly-liquefied residue, chlorinated paraffin resin, octadecanoid acid, again
Raw rubber is respectively crushed into 110 mesh powders by Raymond mill;Step 4) is by coal directly-liquefied residue powder, chlorinated paraffin resin-oatmeal
End, octadecanoid acid powder, reclaimed rubber powder are added in high-speed mixer and are stirred, and obtain the first mixture;Wherein, it stirs
Speed be 50r/min, time of stirring is 12min, and coal tar is heated to 78 DEG C by step 5);Step 6) is in the first mixture
The middle coal tar being added after heating carries out kneading processing, obtains the second mixture;Wherein, the temperature for mediating processing is 120 DEG C, is pinched
The time for closing processing is except 3min, remaining is same as Example 1.
Embodiment 11 prepares asphalt mixture additive
1) prepare raw material (kg) according to following weight proportion:
Coal directly-liquefied residue 70-72, alkyl phenolic resin 15-17, octadecanoid acid 0.02-0.10, Atactic Polypropelene
10-11, paraffin oil 2.0-2.5;
Coal directly-liquefied residue, alkyl phenolic resin, octadecanoid acid, Atactic Polypropelene are crushed respectively by Raymond mill
At 80 mesh powders;
4) by coal directly-liquefied residue powder, alkyl phenolic resin powder, octadecanoid acid powder and Atactic Polypropelene powder
End, which is added in high-speed mixer, is stirred mixing, obtains the first mixture;
Wherein, the speed of stirring is 45r/min, and the time of stirring is 20min;
5) paraffin oil is heated to 70 DEG C;
6) paraffin oil after heating is added in the first mixture carries out kneading processing, obtains the second mixture;
Wherein, the temperature for mediating processing is 100 DEG C, and the time for mediating processing is 5min;
7) the second mixture is placed in extruding pelletization in pelletizer, obtains additive pellet;Wherein, the partial size of the pellet
For 2.5-3.5mm.
8) additive pellet is cooling, packing to get, wherein the temperature of the cooling is 0-20 DEG C.
Embodiment 12 prepares asphalt mixture additive
In addition to preparing raw material (kg) according to following weight proportion in step 1): coal directly-liquefied residue 78-80, p- tertiary fourth
Base phenol-acetylene resin 18-20, sulfenamide type accelerators 0.35-0.40, polyvinyl butyral 8.5-9.5, castor oil
1.0-1.5;By coal directly-liquefied residue, p-tert-butylphenol-acetylene resin, sulfenamide type accelerators, polyvinyl alcohol contracting fourth
Aldehyde is respectively crushed into except 90 mesh powders by Raymond mill, remaining is identical as embodiment 11.
Embodiment 13 prepares asphalt mixture additive
In addition to step 1) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 60-62, chlorinated paraffin tree
Rouge 28-30, thuriam acceserator 0.25-0.30, reclaimed rubber 12-13, coal tar 3.0-3.2;By coal directly-liquefied residue, chlorine
Fossil waxes resin, thuriam acceserator, reclaimed rubber are respectively crushed into except 100 mesh powders by Raymond mill, remaining and reality
It is identical to apply example 11.
Embodiment 14 prepares asphalt mixture additive
In addition to step 1) prepares raw material (kg) according to following weight proportion: coal directly-liquefied residue 83-85, nine petroleum tree of carbon
Rouge 23-25, zinc oxide 0.20-0.22, reclaimed rubber 7-8, paraffin oil 4.0-4.5;By coal directly-liquefied residue, nine petroleum tree of carbon
Rouge, zinc oxide, reclaimed rubber are respectively crushed into except 110 mesh powders by Raymond mill, remaining is identical as embodiment 11.
Embodiment 15 prepares asphalt
It 1) is 4.1% dosage for calculating pitch and mineral aggregate (gather materials and miberal powder) according to bitumen aggregate ratio, and according to following weight
Proportion prepares raw material (kg): asphalt mixture additive 1.025,110# pitch 3.485, mineral aggregate 100.
Wherein, the dosage of asphalt mixture additive is protobitumen dosage (according to the calculated theoretical drip of bitumen aggregate ratio 4.1%
Green dosage) 25wt%, 110# asphalt content be protobitumen dosage 85wt%.The asphalt prepared with this condition,
The asphalt content of 15wt% is saved.
Pitch used in the present invention is 110# matrix pitch, is provided by petroleum dyestuff pitch Co., Ltd in Qinhuangdao, is accorded with
70#, 90# or 110# road asphalt for closing JTG F40-2004 " Ministry of Communications's bi tumenf orr oad technical requirements " are suitable for this hair
It is bright.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, is formed by gathering materials with miberal powder, and the specification of gathering materials is 15~20mm rubble,
10~15mm rubble, 5~10mm rubble, 3~5mm rubble, 0~3mm aggregate chips.The aggregate mix proportion example is referring to table 6.
2) it, will gather materials and be dried 12 hours or more at 195 DEG C, it is spare;
3), 110# pitch is heated to melting at 105 DEG C;
4), under agitation, into the gathering materials of preheating while 110# pitch and the asphalt addition of fusing is added
Agent stirs evenly, and obtains the first mixed material;
Wherein, the whipping temp is 180 DEG C, mixing time 40s.
5) miberal powder is added into the first mixed material, continuation stirs 30s at 180 DEG C, obtains the pitch containing additive
Mixture 1.
Embodiment 16 prepares asphalt
It 1) is 4.4% dosage for calculating pitch and mineral aggregate (gather materials and miberal powder) according to bitumen aggregate ratio, and according to following weight
Proportion prepares raw material (kg):
Asphalt mixture additive 1.1,70# pitch 3.74, mineral aggregate 100.
Wherein, the dosage of asphalt mixture additive is protobitumen dosage (according to the calculated theoretical drip of bitumen aggregate ratio 4.4%
Green dosage) 25wt%, 70# asphalt content be protobitumen dosage 85wt%.The asphalt prepared with this condition, section
The about asphalt content of 15wt%.
Pitch used in the present invention is 70# matrix pitch, is provided, is met by petroleum dyestuff pitch Co., Ltd in Qinhuangdao
70#, 90# or 110# road asphalt of JTG F40-2004 " Ministry of Communications's bi tumenf orr oad technical requirements " is suitable for this hair
It is bright.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, is formed by gathering materials with miberal powder, and the specification of gathering materials is 15~20mm rubble,
10~15mm rubble, 5~10mm rubble, 3~5mm rubble, 0~3mm aggregate chips.The aggregate mix proportion example is referring to table 6.
2) it, will gather materials and be dried 12 hours or more at 190 DEG C, it is spare;
3), 70# pitch is heated to melting at 105 DEG C;
4), under agitation, into the gathering materials of preheating while 70# pitch and the asphalt addition of fusing is added
Agent stirs evenly, and obtains the first mixed material;
Wherein, the whipping temp is 170 DEG C, mixing time 50s.
5) miberal powder is added into the first mixed material, continuation stirs 30s at 170 DEG C, obtains the pitch containing additive
Mixture 2.
Embodiment 17 prepares asphalt
It 1) is 4.8% dosage for calculating pitch and mineral aggregate (gather materials and miberal powder) according to bitumen aggregate ratio, and according to following weight
Proportion prepares raw material (kg):
Asphalt mixture additive 1.44,90# pitch 3.84, mineral aggregate 100.
Wherein, the dosage of asphalt mixture additive is protobitumen dosage (according to the calculated theoretical drip of bitumen aggregate ratio 4.8%
Green dosage) 30wt%, 90# asphalt content be protobitumen dosage 80wt%.The asphalt prepared with this condition, section
The about asphalt content of 20wt%.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, is formed by gathering materials with miberal powder, and the specification of gathering materials is 15~20mm rubble,
10~15mm rubble, 5~10mm rubble, 3~5mm rubble, 0~3mm aggregate chips.The aggregate mix proportion example is referring to table 6.
2) it, will gather materials and be dried 12 hours or more at 200 DEG C, it is spare;
3), 90# pitch is heated to melting at 100 DEG C;
4), under agitation, into the gathering materials of preheating while 90# pitch and the asphalt addition of fusing is added
Agent stirs evenly, and obtains the first mixed material;
Wherein, the whipping temp is 180 DEG C, mixing time 45s.
5) miberal powder is added into the first mixed material, continuation stirs 20s at 180 DEG C, obtains the pitch containing additive
Mixture 3.
Embodiment 18 prepares asphalt
It 1) is 5.0% dosage for calculating pitch and mineral aggregate (gather materials and miberal powder) according to bitumen aggregate ratio, and according to following weight
Proportion prepares raw material (kg):
Asphalt mixture additive 1.75,110# pitch 3.75, mineral aggregate 100.
Wherein, the dosage of asphalt mixture additive is protobitumen dosage (according to the calculated theoretical drip of bitumen aggregate ratio 5.0%
Green dosage) 35wt%, 110# asphalt content be protobitumen dosage 75wt%.The asphalt prepared with this condition,
The asphalt content of 25wt% is saved.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, is formed by gathering materials with miberal powder, and the specification of gathering materials is 15~20mm rubble,
10~15mm rubble, 5~10mm rubble, 3~5mm rubble, 0~3mm aggregate chips.The aggregate mix proportion example is referring to table 6.
2) it, will gather materials and be dried 12 hours or more at 190-200 DEG C, it is spare;
3), 110# pitch is heated to melting at 110 DEG C;
4), under agitation, into the gathering materials of preheating while 110# pitch and the asphalt addition of fusing is added
Agent stirs evenly, and obtains the first mixed material;
Wherein, the whipping temp is 185 DEG C, mixing time 40s.
5) miberal powder is added into the first mixed material, continuation stirs 40s at 185 DEG C, obtains the pitch containing additive
Mixture 4.
Embodiment 19 prepares asphalt
In addition to being 5.4% to calculate the dosage of pitch and mineral aggregate (gather materials and miberal powder), and press according to bitumen aggregate ratio in step 1)
Prepare raw material (kg) according to following weight proportion: asphalt mixture additive 2.16,70# pitch 3.78, mineral aggregate 100.Wherein, pitch
The dosage of mixture additive is the 40wt% of protobitumen dosage (according to the calculated theoretical asphalt content of bitumen aggregate ratio 5.4%),
70# asphalt content is the 70wt% of protobitumen dosage.The asphalt prepared with this condition has saved the pitch of 30wt%
Except dosage, remaining is identical as embodiment 15, and the asphalt 5 containing additive is made.
Embodiment 20 prepares asphalt
In addition to being 5.8% to calculate the dosage of pitch and mineral aggregate (gather materials and miberal powder), and press according to bitumen aggregate ratio in step 1)
Prepare raw material (kg) according to following weight proportion: asphalt mixture additive 2.32,90# pitch 3.77, mineral aggregate 100.Wherein, pitch
The dosage of mixture additive is the 40wt% of protobitumen dosage (according to the calculated theoretical asphalt content of bitumen aggregate ratio 5.8%),
90# asphalt content is the 65wt% of protobitumen dosage.The asphalt prepared with this condition has saved the pitch of 35wt%
Except dosage, remaining is identical as embodiment 15, and the asphalt 6 containing additive is made.
Embodiment 21 prepares asphalt
Other than the asphalt mixture additive in step 1) is prepared by embodiment 11, remaining and 16 phase of embodiment
Together, the asphalt 7 containing additive is made.
The preparation of test example 1 is free of the asphalt of asphalt mixture additive
In addition to according to bitumen aggregate ratio being 4.4% dosage for calculating pitch and mineral aggregate (gather materials and miberal powder) in step 1), and
Prepare raw material (kg) according to following weight proportion: 70# pitch 4.4, mineral aggregate 100;Gather materials middle addition fusing of the step 4) to preheating
70# pitch, stir evenly, obtain except the first mixed material, remaining is identical as embodiment 16, be made be free of asphalt
The asphalt 8 of additive.
The asphalt prepared to embodiment 15-21 and test example 1 is sampled, using conventional method be made test specimen into
Row Marshall performance test, test data are shown in Table 7.
The Marshall Test data comparison of 7.8 kinds of asphalts of table
As can be seen from Table 7, it joined the asphalt of asphalt mixture additive, all technical can
Meet the requirement of JTG F40-2004 " standard specification for construction and acceptance of highway asphalt pavement ", wherein dynamic stability significantly improves, and exists
8000 times/mm or more.