CN108165031A - A kind of production technology of rubber powder modified asphalt - Google Patents
A kind of production technology of rubber powder modified asphalt Download PDFInfo
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- CN108165031A CN108165031A CN201711232615.7A CN201711232615A CN108165031A CN 108165031 A CN108165031 A CN 108165031A CN 201711232615 A CN201711232615 A CN 201711232615A CN 108165031 A CN108165031 A CN 108165031A
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of production technologies of rubber powder modified asphalt, are related to asphalt roads, for solving in the prior art, rubber powder makes cementitious matter become viscous at high temperature and mixture thinner thickness, gather materials in mixture relatively thick, be in direct contact between building stones, so that being more difficult to be compacted；Road surface after construction easily leads to the problem of the diseases such as loose, pit slot.It includes the following steps that step 1 selects rubber powder, and rubber powder selects the rubber powder granule of the desulfurization 60% of 60~100 mesh of grain size, and step 2 selects dispersant, and step 3 selects additive, and the additive is disulfide alcohol：The pungent salt of fourth：AEO3：Barium sulfate：AEO9 presses following weight ratios 30：20：30：10：10 are formulated；Step 4 after matrix pitch is heated, adds in rubber powder, matrix pitch modifying agent, dispersant, additive, stirs swelling 120 minutes, squeeze into development tank stirring at low speed after being pumped into colloid mill grinding, add stabilizer.The technique that the technical program provides can keep viscosity at high temperature.
Description
Technical field
The present invention relates to asphalt roads, are a kind of production technologies of rubber powder modified asphalt specifically.
Background technology
In road pavement particularly plateau laying road, to asphalt high-temperature stability, low-temperature cracking-resistance, ductility, viscous tough
Property, tensile capacity and water peel-ability requirement it is very high.And plain asphalt for weather conditions severe plateau road pavement when,
Performance is far from the requirment.During the broiling summer, the road that the strong ultraviolet light irradiation plain asphalt in plateau is laid with is often
Frost boiling understands bursting by freezing again to cold winter road.Vehicle traveling is very dangerous.
Patent document 200710048460.1 discloses SBR road modified asphalts matching method and production technology.By described in
Butadiene-styrene rubber (SBR), butadiene and styrene copolymer SBR be incorporated by a certain percentage in pitch and use shear pump or colloid
Mill crushes SBR to be mixed with pitch.Technical solution SBR modified pavement asphalts are mixed in bitumen for road use to pitch
The modifying agent to play an important role can be improved, bitumen for road use is made significantly to be carried than plain asphalt tensile capacity and water peel-ability
Height, while technical solution SBR modified pavement asphalts have good high-temperature stability, i.e., good high temperature rutting resistance；
Original state can be kept in the case of environment temperature change dramatically, ageing resistance, uvioresistant and durability are splendid.
In order to improve the elasticity at a temperature of pavement usage, the temperature sensitivity on road surface is reduced, while resist to improve road surface
Deformability and antifatigue cracking, it is proposed that the technology of rubber asphalt, rubber asphalt are first to be processed into waste tire protoplasm
Rubber powder, then be combined, while add a variety of high polymer modifying agent, and fully mixing in certain thickness grading ratio
Under the hot conditions of conjunction (180 DEG C or more), the cementing material of modified pitch that is formed after being reacted with the abundant swell of matrix pitch.
" rubber asphalt " is commonly understood by being the pitch for being added to rubber." rubber asphalt " concept popular at present has
Three kinds：The rubber asphalt of the rubber asphalt of " dry method ", the rubber asphalt of " wet method " and " pitch library mixing method ".
" dry method " (application) rubber asphalt is first to mix rubber powder with gathering materials, and then adds pitch and is mixed and stirred, should
Method is rubber powder to be considered as the part gathered materials, but the volume of ordinary rubber powder all cannot be too high.The usage is less.
" wet method " is first to mix a certain amount of rubber powder with pitch, is reacted at high temperature and what is formed has
The mixture of certain property, is to apply to obtain most commonly used rubber asphalt production method at present.
" pitch library mixing method " refers to that shoddy carries out mixing in oil plant or pitch library with heated bitumen, is then dispensed into drip
Green concrete mixing plant or construction site.One kind that " pitch library mixing method " can also produce in fact as " wet method ", but its useless rubber
Rubber powder dosage generally no more than 10%, rubber powder dosage is relatively low, and viscosity is relatively low compared with rubber asphalt (" wet method " produces), mixes
With the mixture performance that rubber-asphalt mixture is not achieved is identical.
At present, the concept of external " rubber asphalt " increasingly tends to refer exclusively to the rubber asphalt of " wet method " production.Rubber drips
Blueness be using 18%~22% shoddy, pitch and additive composition mixture, with gather materials mix before elder generation at high temperature
It is reacted.The rubber powder that rubber asphalt uses is mostly 80 mesh, and the ingredient for being rich in natural rubber containing 25 ± 2% is needed in rubber powder, should
Ingredient can be obtained directly from waste rubber tire.Rubber asphalt use rubber powder it is general there are two types of, one kind is only with discarded wheel
Tire rubber, another kind are not only with discarded rubber for tire, and have added natural rubber.Rubber asphalt production when, be
Enhance the compatibility of rubber powder and matrix pitch, can generally be added as needed on additive, common additive is generally filled
Oil, dosage are generally the 2.5~6.0% of asphalt content.
The technical specification (rubber asphalt technology application guide) in U.S. Ya Lisangna states：
| Detection project | Technical indicator |
| Viscosity, 177 DEG C, (Pa.S) | 1.5~4.0 |
| Needle penetration (25 DEG C, 100g, 5s), (0.1mm) | ≥25 |
| Softening point (DEG C) | ≥54 |
| Elasticity is restored, 25 DEG C (%) | ＞ 60 |
Although rubber asphalt has many good qualities, but can not solve all road-surface problems, and rubber asphalt must be selected suitably
It selects, design, produce and constructs, Pavement Performance could be improved.The prior art has the following disadvantages, and rubber asphalt and its mixture are applied
Working hour, temperature requirement are stringent.Rubber powder makes cementitious matter become viscous at high temperature and mixture thinner thickness, gathers materials in mixture
It is relatively thick, it is in direct contact between building stones, so that being more difficult to be compacted.Road surface after construction easily generates the diseases such as loose, pit slot.
Invention content
The present invention seeks to be intended to provide a kind of rubber powder modified asphalt for preventing viscosity reduction under high temperature.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of production technology of rubber powder modified asphalt, includes the following steps,
Step 1, selects rubber powder, and rubber powder selects the rubber powder granule of the desulfurization 60% of 60~100 mesh of grain size, the desulfurization of rubber powder
The active origin cause of formation, granularity selection mainly consider and the affinity of SBS, SBR,
Step 2 selects dispersant, as activating agent,
Step 3 selects additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 is by following
Weight ratio 30: 20: 30: 10: 10 is formulated；
Step 4, after matrix pitch is heated, addition rubber powder, matrix pitch modifying agent, dispersant, additive, stirring are molten
Swollen 120 minutes, development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, adds stabilizer.
Using above-mentioned technical proposal, by project team's many experiments, in the rubber powder of the desulfurization 60% of 60~100 mesh of grain size
Grain blast blending, indices show excellent, and kinematic viscosity is excessive.Viscosity is asphalt material important indicator, and viscosity is big
Pitch generated under load action smaller shear-deformable, elastic recovery properties are good, have with the dynamic stability of asphalt
Larger incidence relation adds in rubber powder granule, with the increase of incorporation, the viscosity either high temperature viscosity or low temperature of pitch
Viscosity can show the rule risen, and for low temperature viscosity, this is good rule, and has its dual character for high-temperature viscosity, and one
Aspect shows good road surface stability, on the other hand can cause the difficulty for paving and being compacted.In order to pave and be compacted, this technology
Dispersant is added in scheme, the good mobility of modified pitch is shown after adding dispersant.
It further limits, in the step 2, the dispersant selects 0.1%~3% polyether polyol.
It further limits, the rubber powder is used for SBS modified pitch, and matrix pitch is heated to 160-165 DEG C, adds in addition
Agent, SBS modifier, rubber powder and dispersant stirring swelling 80~120 minutes, be pumped into colloid mill grinding after squeeze into development tank low speed stir
It mixes, adds stabilizer.
Preferably, the rubber powder is used for SBS modified pitch, specifically includes following steps, and pitch is heated to 160 DEG C by S1,
Dehydration is for use, S2, adds in additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 presses following weight
It is formulated than 30: 20: 30: 10: 10, adds in SBS modifier, the SBS modifier volume is 5%, adds in rubber powder, the glue
Powder selects the rubber powder granule of the desulfurization 60% of 80 mesh of grain size, adds in 0.1% polyether polyol, and stirring is swollen 120 minutes, S3,
Development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, rotating speed 4000r/min stirs 20min, adds stabilizer.
It further limits, the rubber powder is used for SBR modified pitch, and matrix pitch is heated to 140-145 DEG C, adds in addition
Agent, SBR modifying agent, rubber powder and dispersant stirring swelling 80~120 minutes, be pumped into colloid mill grinding after squeeze into development tank low speed stir
It mixes, adds stabilizer.
Preferably, the rubber powder is used for SBR modified pitch, specifically includes following steps, and pitch is heated to 140 DEG C by S1,
Dehydration is for use, S2, adds in additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 presses following weight
It is formulated than 30: 20: 30: 10: 10, adds in SBS modifier, the SBS modifier volume is 5%, adds in rubber powder, the glue
Powder selects the rubber powder granule of the desulfurization 60% of 80 mesh of grain size, adds in 0.1% polyether polyol, and stirring is swollen 120 minutes, S3,
Development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, rotating speed 4000r/min stirs 20min, adds stabilizer.
Further limiting, the rubber powder is used for SBS/SBR composite modified asphalts, and matrix pitch is heated to 150-155 DEG C,
It adds in additive, SBS modifier, SBR modifying agent, rubber powder and dispersant stirring to be swollen 80~120 minutes, is pumped into colloid mill grinding
After squeeze into development tank stirring at low speed, add stabilizer.
Preferably, the rubber powder is used for SBS/SBR composite modified asphalts, specifically includes following steps, pitch is heated to
150 DEG C, dehydration is for use, S2, adds in additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 is pressed
It states weight ratio 30: 20: 30: 10: 10 to be formulated, adds in SBS modifier, the SBS modifier volume is 5%, adds in SBR and changes
Property agent, the SBR content of modifier is 5%, adds in rubber powder, and the rubber powder selects the rubber powder of the desulfurization 60% of 80 mesh of grain size
Grain, add in 0.1% polyether polyol, stirring swelling 120 minutes, S3, be pumped into colloid mill grinding after squeeze into development tank low speed stir
It mixes, rotating speed 4000r/min, stirs 20min, add stabilizer.
It further limits, incorporation rubber powder content is 15~20% in the matrix pitch.
After the rubber powder granule for the desulfurization 60% that 60~100 mesh of grain size is mixed in modified pitch, glue is mixed in matrix pitch
Powder content when 8~20%, advance the speed comparatively fast by softening point, 1% is improved per incrementss, softening point will improve 0.3-
0.4 DEG C, and if it exceeds 20% incorporation, then softening point has without apparent variation and will appear Alternate Phenomenon individually.
Rubber powder modified asphalt and plain asphalt performance comparison table
Compared with prior art, in rubber powder modified asphalt, the rubber powder utilized is processed from waste tire to the present invention
, waste-tyre rubber-powder in modified pitch, through special process prepare shown performance data be it is satisfactory,
Indivedual indexs are well beyond the technology requirement of national formulation, and from the reference number to feed intake, production cost is to decline, and product
Road pavement quality is significantly improved.And without the difficulty for increasing construction, the environmental process conditions of construction have certain alleviation.
Description of the drawings
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is schematic diagram under prior art rubber powder pitch microscope；
Fig. 2 is schematic diagram under rubber powder modified asphalt microscope of the present invention.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
A kind of production technology of rubber powder modified asphalt, includes the following steps,
Step 1, selects rubber powder, and rubber powder selects the rubber powder granule of the desulfurization 60% of 60~100 mesh of grain size, the desulfurization of rubber powder
The active origin cause of formation, granularity selection mainly consider and the affinity of SBS, SBR,
Step 2 selects dispersant, as activating agent,
Step 3 selects additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 is by following
Weight ratio 30: 20: 30: 10: 10 is formulated,
Step 4, after matrix pitch is heated, addition rubber powder, matrix pitch modifying agent, dispersant, additive, stirring are molten
Swollen 120 minutes, development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, adds stabilizer.
Wherein, in step 2, dispersant selects 0.1%~3% polyether polyol.
Wherein, dispersant uses polyether polyol, and stabilizer uses polyvinyl alcohol, and the pungent salt of fourth uses sulphur phosphorus fourth octyl group zinc
Salt, disulfide alcohol use di-sec-butyl disulfide.
Sulphur phosphorus fourth octyl group zinc salt quality index is as shown in the table,
| Project | Quality index | Test method |
| Kinematic viscosity (100 DEG C), mm2/s | Actual measurement | GB/T265 |
| Flash-point (opening), DEG C | ≥180 | 6B/T267 |
| Coloration (number) | ≤2.5 | GB/T6540 |
| Zn content, % (m/m) | 8.0-10.0 | SH/T0226 |
| Phosphorus content, % (m/m) | 6.0-8.5 | SH/T0296 |
| Sulfur content, % (m/m) | 12.0-18.0 | SH/T0303 |
| Density (20 DEG C), Kg/m3 | 1080-1130 | GB/T1884 |
| Moisture content, % (m/m) | ≤0.09 | GB/T260 |
After the rubber powder granule for the desulfurization 60% that 60~100 mesh of grain size is mixed in modified pitch, the needle penetration of pitch exists
Different degrees of variation, the overwhelming majority is significantly to be hardened compared with matrix pitch, as shown in Figure 1, needle penetration decline is more apparent,
To meet the technical requirement of national standard and road construction《Standard specification for construction and acceptance of highway asphalt pavement》JTGE20-2011,
Incorporation aromatic naphtha into draw adjust.As shown in Fig. 2, rubber powder absorbs oil, it is evenly distributed in pitch after swelling, and and modifying agent
It hands over together molten, together constitutes mesh space structure, realize mutual supplement with each other's advantages, performance is more stablized, and stabilization time is greatly
Extend.
Upper table is rubber powder modified asphalt experimental data and technical indicator contrast properties table, from data, it will be seen that
Rubber powder content is mixed in matrix pitch when 8~20%, softening point is advanced the speed comparatively fast, 1% is improved per incrementss, softening
Point will improve 0.3-0.4 DEG C, and when rubber powder content is mixed 15%, softening point index meets the requirements, i.e. softening point TR＆
B is not less than 60 DEG C.And if it exceeds 20% incorporation, then softening point has and will appear Alternate Phenomenon individually without apparent variation, example
Such as mix rubber powder content 23% and incorporation rubber powder content 26%.
Embodiment one,
Rubber powder is used for SBS modified pitch, specifically includes following steps, and pitch is heated to 160 DEG C by S1, and dehydration is for use,
S2 adds in additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 presses following weight ratios 30: 20:
Be formulated at 30: 10: 10, adds in SBS modifier, and the SBS modifier volume is 5%, adds in rubber powder, and the rubber powder selects grain
The rubber powder granule of the desulfurization 60% of 80 mesh of diameter adds in 0.1% polyether polyol, and stirring swelling 120 minutes, S3 is pumped into colloid
Development tank stirring at low speed is squeezed into after mill grinding, rotating speed 4000r/min stirs 20min, adds stabilizer.It is mixed in matrix pitch
It is 15~20% to enter rubber powder content.
Embodiment two,
Rubber powder is used for SBR modified pitch, specifically includes following steps, and pitch is heated to 140 DEG C by S1, and dehydration is for use,
S2 adds in additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 presses following weight ratios 30: 20:
Be formulated at 30: 10: 10, adds in SBS modifier, and the SBS modifier volume is 5%, adds in rubber powder, and the rubber powder selects grain
The rubber powder granule of the desulfurization 60% of 80 mesh of diameter adds in 0.1% polyether polyol, and stirring swelling 120 minutes, S3 is pumped into colloid
Development tank stirring at low speed is squeezed into after mill grinding, rotating speed 4000r/min stirs 20min, adds stabilizer.It is mixed in matrix pitch
It is 15~20% to enter rubber powder content.
Embodiment three,
Rubber powder is used for SBS/SBR composite modified asphalts, specifically includes following steps, pitch is heated to 150 DEG C, dehydration is treated
With S2 adds in additive, and the additive is disulfide alcohol: the pungent salt of fourth: AEO3: barium sulfate: AEO9 presses following weight ratios 30:
Be formulated at 20: 30: 10: 10, adds in SBS modifier, and the SBS modifier volume is 5%, adds in SBR modifying agent, described
SBR content of modifier is 5%, adds in rubber powder, and the rubber powder selects the rubber powder granule of the desulfurization 60% of 80 mesh of grain size, adds in
0.1% polyether polyol, stirring swelling 120 minutes, S3 squeeze into development tank stirring at low speed, rotating speed after being pumped into colloid mill grinding
For 4000r/min, 20min is stirred, adds stabilizer.It is 15~20% that rubber powder content is mixed in matrix pitch.
From above-mentioned modified pitch analysis data contrast table, for viscosity, it will be seen that modified pitch is at 135 DEG C
Kinematic viscosity is 9.6, and after adding in rubber powder, SBS+ rubber powder modified asphalts are dripped in 135 DEG C of kinematic viscosity for 1.8, SBR+ rubber powder modifieds
It in 135 DEG C of kinematic viscosity is 1.8 that blueness, which in 135 DEG C of kinematic viscosity is 2.6, SBS/SBR+ rubber powder modified asphalts,.Viscosity is pitch material
Expect important indicator, the big pitch of viscosity generates smaller shear-deformable under load action, and elastic recovery properties are good, mixed with pitch
Closing the dynamic stability of material has larger incidence relation, adds in rubber powder granule, with the increase of incorporation, the viscosity of pitch is either
High temperature viscosity or low temperature viscosity can show the rule risen, and for low temperature viscosity, this is good rule, and for high temperature
Viscosity has its dual character, on the one hand shows good road surface stability, on the other hand can cause the difficulty for paving and being compacted.In order to
It paves and is compacted, dispersant is added in the technical program, the good mobility of modified pitch is shown after adding dispersant.
From above-mentioned modified pitch analysis data contrast table, for low-temperature ductility, it will be seen that SBS+ rubber powder modifieds
5 DEG C of ductilities of pitch are significantly greater than modified pitch, and rubber powder incorporation also has significantly 5 DEG C of ductilities of SBS+ rubber powder modified asphalts
Rule influences, and waste-tyre rubber-powder particle plays humidification in rubber asphalt system, this rule is equally applicable to SBR+
Rubber powder modified asphalt and SBS/SBR+ rubber powder modified asphalts, waste-tyre rubber-powder particle volume is small, and quantity is more, in low temperature they
It is different with the modulus of asphalt system, the stress concentration phenomenon of height can be generated, and close with the particle phase molten bonding of modifying agent,
False strand reticular structure is formed, further greatly strengthens the impact strength of pitch and the flexibility of extremely low temperature, it is demonstrated experimentally that
The rubber powder of proper ratio is mixed in rubber powder modified asphalt, can increase in various degree and keep 5 DEG C of low-temperature ductility, and aging is prolonged
Degree can all have different raisings, especially to the more prominent of SBS modified pitch performance.
In addition, it is necessary to, it is noted that improvement of the rubber powder modified asphalt to ageing properties, rich in carbon black, anti-in waste tire
The chemical compositions such as old agent, these are all a kind of reinforcing agent of function admirable for pitch, are further matched with the advantage of modifying agent
It closes, either can all effectively improve softening point in high fever area and the heavy traffic road surface of cold district.Mitigation traffic track,
Low temperature tear resistance is improved, and improves the anti-aging property of pitch, extends road life.
A kind of production technology of rubber powder modified asphalt provided by the invention is described in detail above.Specific embodiment
Explanation be merely used to help understand the present invention method and its core concept.It should be pointed out that for the common of the art
For technical staff, without departing from the principle of the present invention, can also to the present invention some improvement and modification can also be carried out, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (9)
1. a kind of production technology of rubber powder modified asphalt, it is characterised in that：Include the following steps,
Step 1, select rubber powder, rubber powder select 60~100 mesh of grain size desulfurization 60% rubber powder granule, rubber powder it is desulphurizing activated
The origin cause of formation, granularity selection mainly consider and the affinity of SBS, SBR,
Step 2 selects dispersant, as activating agent,
Step 3, selects additive, and the additive is disulfide alcohol：The pungent salt of fourth：AEO3：Barium sulfate：AEO9 presses following weight
Than 30：20：30：10：10 are formulated,
Step 4 after matrix pitch is heated, adds in rubber powder, matrix pitch modifying agent, dispersant, additive, stirring swelling 120
Minute, development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, adds stabilizer.
2. a kind of production technology of rubber powder modified asphalt according to claim 1, it is characterised in that：In the step 2,
The dispersant selects 0.1%~3% polyether polyol.
3. a kind of production technology of rubber powder modified asphalt according to claim 2, it is characterised in that：The rubber powder is used for
Matrix pitch is heated to 160-165 DEG C by SBS modified pitch, and it is molten to add in additive, SBS modifier, rubber powder and dispersant stirring
Swollen 80~120 minutes, development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, adds stabilizer.
4. a kind of production technology of rubber powder modified asphalt according to claim 3, it is characterised in that：The rubber powder is used for
SBS modified pitch specifically includes following steps, and pitch is heated to 160 DEG C by S1, and dehydration is for use, S2, adds in additive, described
Additive is disulfide alcohol：The pungent salt of fourth：AEO3：Barium sulfate：AEO9 presses following weight ratios 30：20：30：10：10 are formulated, and add
Enter SBS modifier, the SBS modifier volume is 5%, adds in rubber powder, and the rubber powder selects the desulfurization 60% of 80 mesh of grain size
Rubber powder granule, adds in 0.1% polyether polyol, and stirring swelling 120 minutes, S3 squeezes into development tank after being pumped into colloid mill grinding
Stirring at low speed, rotating speed 4000r/min stir 20min, add stabilizer.
5. a kind of production technology of rubber powder modified asphalt according to claim 2, it is characterised in that：The rubber powder is used for
Matrix pitch is heated to 140-145 DEG C by SBR modified pitch, and it is molten to add in additive, SBR modifying agent, rubber powder and dispersant stirring
Swollen 80~120 minutes, development tank stirring at low speed is squeezed into after being pumped into colloid mill grinding, adds stabilizer.
6. a kind of production technology of rubber powder modified asphalt according to claim 5, it is characterised in that：The rubber powder is used for
SBR modified pitch specifically includes following steps, and pitch is heated to 140 DEG C by S1, and dehydration is for use, S2, adds in additive, described
Additive is disulfide alcohol：The pungent salt of fourth：AEO3：Barium sulfate：AEO9 presses following weight ratios 30：20：30：10：10 are formulated, and add
Enter SBS modifier, the SBS modifier volume is 5%, adds in rubber powder, and the rubber powder selects the desulfurization 60% of 80 mesh of grain size
Rubber powder granule, adds in 0.1% polyether polyol, and stirring swelling 120 minutes, S3 squeezes into development tank after being pumped into colloid mill grinding
Stirring at low speed, rotating speed 4000r/min stir 20min, add stabilizer.
7. a kind of production technology of rubber powder modified asphalt according to claim 2, it is characterised in that：The rubber powder is used for
Matrix pitch is heated to 150-155 DEG C by SBS/SBR composite modified asphalts, add in additive, SBS modifier, SBR modifying agent,
Rubber powder and dispersant stirring are swollen 80~120 minutes, squeeze into development tank stirring at low speed after being pumped into colloid mill grinding, addition is stablized
Agent.
8. a kind of production technology of rubber powder modified asphalt according to claim 7, it is characterised in that：The rubber powder is used for
SBS/SBR composite modified asphalts, specifically include following steps, pitch are heated to 150 DEG C, dehydration is for use, S2, adds in addition
Agent, the additive are disulfide alcohol：The pungent salt of fourth：AEO3：Barium sulfate：AEO9 presses following weight ratios 30：20：30：10：10 prepare
It forms, adds in SBS modifier, the SBS modifier volume is 5%, adds in SBR modifying agent, the SBR content of modifier is
5%, rubber powder is added in, the rubber powder selects the rubber powder granule of the desulfurization 60% of 80 mesh of grain size, adds in 0.1% polyether polyol,
Stirring swelling 120 minutes, S3 squeezes into development tank stirring at low speed, rotating speed 4000r/min, stirring after being pumped into colloid mill grinding
20min adds stabilizer.
9. a kind of production technology of rubber powder modified asphalt according to claim 3 or 4 or 5 or 6 or 7 or 8, feature exist
In：It is 15~20% that rubber powder content is mixed in the matrix pitch.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206927A (en) * | 2017-06-30 | 2019-01-15 | 霍尼韦尔国际公司 | A kind of asphalt modification composite material and preparation method and application |
| CN109294250A (en) * | 2018-09-17 | 2019-02-01 | 浙江潮源新型建材股份有限公司 | A kind of production technology based on rubber powder modified asphalt |
| CN109705415A (en) * | 2018-12-19 | 2019-05-03 | 新疆交通建设集团股份有限公司 | A kind of rubber modified asphalt |
| CN110423476A (en) * | 2019-08-12 | 2019-11-08 | 莒县东盛橡胶有限公司 | Road surface bonding rubber modified asphalt particle and its production method |
| CN111253764A (en) * | 2020-03-30 | 2020-06-09 | 云南省公路科学技术研究院 | Powder SBS modified asphalt and preparation method thereof |
| CN115010989A (en) * | 2022-05-16 | 2022-09-06 | 广州华晖交通技术有限公司 | Asphalt cement component regulator and preparation method thereof |
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2017
- 2017-11-30 CN CN201711232615.7A patent/CN108165031A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206927A (en) * | 2017-06-30 | 2019-01-15 | 霍尼韦尔国际公司 | A kind of asphalt modification composite material and preparation method and application |
| CN109294250A (en) * | 2018-09-17 | 2019-02-01 | 浙江潮源新型建材股份有限公司 | A kind of production technology based on rubber powder modified asphalt |
| CN109705415A (en) * | 2018-12-19 | 2019-05-03 | 新疆交通建设集团股份有限公司 | A kind of rubber modified asphalt |
| CN110423476A (en) * | 2019-08-12 | 2019-11-08 | 莒县东盛橡胶有限公司 | Road surface bonding rubber modified asphalt particle and its production method |
| CN111253764A (en) * | 2020-03-30 | 2020-06-09 | 云南省公路科学技术研究院 | Powder SBS modified asphalt and preparation method thereof |
| CN115010989A (en) * | 2022-05-16 | 2022-09-06 | 广州华晖交通技术有限公司 | Asphalt cement component regulator and preparation method thereof |
| CN115010989B (en) * | 2022-05-16 | 2024-03-15 | 广州华晖交通技术有限公司 | Asphalt cement component regulator and preparation method thereof |
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