CN108911591A - A kind of rubber powder modified asphalt mastic-broken stone mixture and preparation method thereof - Google Patents
A kind of rubber powder modified asphalt mastic-broken stone mixture and preparation method thereof Download PDFInfo
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- CN108911591A CN108911591A CN201811224039.6A CN201811224039A CN108911591A CN 108911591 A CN108911591 A CN 108911591A CN 201811224039 A CN201811224039 A CN 201811224039A CN 108911591 A CN108911591 A CN 108911591A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to modified asphalt technology field, in particular to a kind of rubber powder modified asphalt mastic-broken stone mixture and preparation method thereof, a kind of rubber powder modified asphalt mastic-broken stone mixture, in parts by weight, including following component：10~25 parts of rubber powder modified asphalt, 1~3 part of lignin fibre, 4~8 parts of aramid fiber short fibre, 100~150 parts of metaling, the rubber powder modified asphalt is that waste tyre rubber powder is modified obtained, modified glue powder and gather materials with very strong cohesive force, rubber powder modified asphalt mastic-broken stone mixture has stronger resistances loaded deformation ability and high temperature rutting resistance, and water resistant does harm to very capable.
Description
Technical field
The invention belongs to modified asphalt technology field, in particular to a kind of rubber powder modified asphalt mastic-broken stone mixture and
Preparation method.
Background technique
Asphalt is to build material used in bituminous pavement, and bituminous pavement refers to mixes road drip in mineral material
Various types of road surfaces of green material making.Asphalt binder, which improves to pave the way, resists driving and natural cause road pavement with pellet
The ability of damage makes evenness of road surface lack dirt, waterproof, durable.Therefore, bituminous pavement is a kind of by most wide in road construction
The high class pavement of general use.With the development of transportation, overload and oversize and canalized traffic are got worse, and the volume of traffic increases rapidly
Add, to bituminous pavement, more stringent requirements are proposed, for example anti-rut behavior and cracking resistance need to improve.Thus, it is desirable that pitch
The pavement performance of mixture can satisfy this requirement.
Contain a variety of high molecular polymers and a large amount of carbon blacks, antioxygen such as butadiene-styrene rubber, natural rubber in waste tire
Agent, filler, processing oil etc., therefore, can be added in pitch, the product that mix obtains, referred to as after waste and old rubber particle
Rubber asphalt.Rubber powder is swollen in pitch, increases the cementability of pitch, and oil film thickness is bigger, rubber asphalt it is whole
Body performance is substantially better than basic asphalt.
But waste Crumb rubber belongs to inert material, vulcanized rubber powder it is less using group, with pitch when high temperature, long
Between shear action under, the bond strength of rubber powder granule and pitch is inadequate, and rubber powder granule is easy to from pitch in the road of making
Middle removing, road quality is poor, and service life is short.
Using SBS modified pitch as the polymer modified asphalt of representative have preferable high-temperature stability, low-temperature stability and
Anti-fatigue performance, SBS are the thermoplastic styrene butadiene rubbers artificial synthesized as raw material using petroleum, and 1 ton of SBS needs to consume about 3 tons of petroleum.
20,000,000 tons of meters are consumed every year according to China's bi tumenf orr oad, wherein 10% is modified pitch, SBS are needed to count roughly 100,000 tons,
Year consumes petroleum about 300,000 tons, and petroleum resource consumption amount is very big.
Summary of the invention
The present invention to solve the above-mentioned problems, provides a kind of rubber powder modified asphalt mastic-broken stone mixture, and provide it
Preparation method, rubber powder modified asphalt mastic-broken stone mixture have stronger resistance loaded deformation ability and high temperature Rut resistance energy
Power, water resistant evil are very capable.
The present invention is realized using following technical scheme：
A kind of rubber powder modified asphalt mastic-broken stone mixture, in parts by weight, including following component：Rubber powder modified asphalt
10~25 parts, 1~3 part of lignin fibre, 4~8 parts of aramid fiber short fibre, 100~150 parts of metaling, the metaling gradation model
It encloses such as following table：
| Slot size (mm) | 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 90-100 | 65-85 | 45-65 | 20-32 | 15-24 | 14-22 | 12-18 | 10-15 | 9-14 | 6-10 |
Viscosity is the important indicator of asphalt high-temperature stability, rubber powder modified asphalt viscosity with higher, in mixture
Lignocellulosic, which is added, can more preferably increase non-deformability, keep mixture oil film thicker and be not easy analysis leakage and bellding, can be very
The cohesive force for improving pitch and rubble well, it is good in the performance of water shutoff aspect of performance.
Aramid fiber short fibre has the excellent performances such as superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, light-weight, strong
Degree is 5~6 times of steel wire, and modulus is 2~3 times of steel wire or glass fibre, and toughness is 2 times of steel wire, and weight is only steel wire
1/5 or so, 560 DEG C at a temperature of, do not decompose, do not melt.It has good anti-flammability and anti-aging property, has very
Long life cycle.
Lignin fibre and aramid fiber short fibre form reticular structure in asphalt, can form reinforced action, right
In reducing pavement cracking or repairing old pavement reflection crack, effect is obvious.
Preferred scheme, in parts by weight, the rubber powder modified asphalt include following component：10~30 parts of modified glue powder,
0.3~0.6 part of plasticizer, 60~90 parts and 2~5 parts of age resister of basic asphalt；The modified glue powder is made by the following method
, waste tyre rubber powder is completely immersed in water, the potassium ferrate of water total weight 1~2% is added, under the conditions of 20~30 DEG C, with
After the speed of 20~30rpm persistently stirs 0.5~1h of immersion, above-mentioned waste tyre rubber powder is ground in a wetted condition, obtained 30~
The modified glue powder of 60 mesh.
The modified glue powder is modified by the immersion of potassium ferrate solution, Surface Creation reticular structure and chain object, surface tool
There are carbonyl, hydroxyl isoreactivity group, can effectively improve and be reacted with carboxyl, sulfoxide group, the sour glycoside group in basic asphalt
Effect, so that the connection effect of modified glue powder and basic asphalt is improved, after grinding in a wetted condition, modified glue powder surface
Roughness obtains larger raising, increases the contact area with pitch, can be preferably in conjunction with pitch；
Potassium ferrate is modified to waste tyre rubber powder, and main component becomes ferric oxide powder, ferric oxide powder
End is attached to waste tyre rubber powder surface, can carry out physical etch to waste tyre rubber powder surface as abrasive material, effectively increase useless
The grinding rate of tire glue powder, modified glue powder surface have numerous scratches, and more active group can be retained by the one hand having,
The subsequent intensity connecting with basic asphalt is improved, on the other hand, rubber powder granule swelling rate becomes faster, mixes with basic asphalt
Time can suitably reduce, and reduce production cost；
Although can also achieve the effect that above-mentioned ferric oxide powder by way of adding powder, it should infuse
It anticipates and arrives, powder is generally the substance of dry tack free, when being dissolved in water, is easy agglomerating and needs more mixing time to reach
To dispersion effect, otherwise it is easy to drift in the surface of water, worker operation environment is deteriorated, and, the activity for being dissolved in the powder of water is opposite
Lower, the effect for being attached to waste tyre rubber powder surface is poor, and effect can not show a candle to convert using potassium ferrate three oxidations two
Iron powder.
After the modified glue powder is mixed with basic asphalt, rubber powder granule swelling, surface texture is further complicated, can be inhaled
The light composition in pitch is received, pitch is made to be gradually transformed into asphalitine, so that the system of systems of rubber powder modified asphalt be made to coagulate to molten
Glue-type development, and the ingredients such as sulphur, carbon black, silica, iron oxide in modified glue powder enter in basic asphalt, play improvement pitch
The effect of temperature sensitivity, cryogenic property and ageing-resistant performance.
Preferred scheme the plasticizer includes four mercaptoacetate of pentaerythrite, and/or, four mercaptobutyric acid of pentaerythrite
Ester.Four mercaptoacetate of pentaerythrite and four mercaptobutylate of pentaerythrite, can be in modified glue powders and basis as plasticizer
When pitch is kneaded, sulfydryl, four mercaptoacetate of pentaerythrite and four mercaptobutylate of pentaerythrite itself are provided for co-mixing system
Fracture recombination, four mercaptobutylate of four mercaptoacetate of pentaerythrite and pentaerythrite occur in blending system for the ester bond having
As plasticizer, symmetrical structure can be used as crosslinking center, hand over modified glue powder, age resister and asphalitine component
Connection, and generate synergistic effect with said components improves modified glue powder and pitch in rubber powder modified asphalt of the present invention
Mix binding ability.
Basic asphalt described in preferred scheme is 130~70# bi tumenf orr oad.
Age resister described in preferred scheme includes rosin glycerides, and/or, isobutyl stearate.In modified pitch
In preparation process, pitch, which is in for a long time under the conditions of 160 DEG C or more of temperature, can occur aging, with the extension of ageing time,
The degree of aging of pitch is deepened, and pitch gradually becomes brittle so that high temperature rutting resistance is significantly improved, but pitch with
The raising of temperature softens, light components loss under the effect of hot oxygen of pitch, another part be transformed into the macromoleculars such as asphalitine at
Point, with the increase of bituminous pavement load number, there is fatigue in pitch, and recoverable force is less able, furthermore.The present invention is by adding
Add age resister, the loss of pitch light components can be effectively reduced, and is retained on the mixed system of rubber powder modified asphalt
In, the road of making is under 48 DEG C or more of hot conditions, and light components loss speed is effectively reduced, and road life obtains
Biggish extension.
A kind of preparation method of rubber powder modified asphalt mastic-broken stone mixture, includes the following steps：
Lignin fibre, aramid fiber short fibre and metaling are mixed by weight, are gathered materials by S1；
S2 will gather materials and be heated to 190 DEG C~200 DEG C；
160~180 DEG C of rubber powder modified asphalt is added while stirring, obtains rubber powder modified asphalt Ma after mixing by S3
Hoof fat crushed stones mixture.
The beneficial effects of the invention are as follows：
1, modified glue powder of the invention and gather materials with very strong cohesive force, the mixing of rubber powder modified asphalt mastic-broken stone
Material, has stronger resistance loaded deformation ability and high temperature rutting resistance, and water resistant evil is very capable.
2, lignin fibre and aramid fiber short fibre form reticular structure in asphalt, can form reinforced action,
For reducing pavement cracking or repairing old pavement reflection crack, effect is obvious.
3, in rubber powder modified asphalt of the invention, modified glue powder and pitch have good binding ability, and rubber powder granule is not
It is easily detached from from modified glue powder pitch, and the anti-softening of high temperature, low temperature crack resistence performance brilliance, can effectively extend the road occupation longevity
Life, the road quality of making is preferable, reduces pavement maintenance expense, and the thickness on road surface is reduced under the standard for not reducing pavement strength
Degree improves driving comfort level to reduce consumption of asphalt amount, and the road surface color being laid with is more black.
4, waste tyre rubber powder is modified by potassium ferrate solution, Surface Creation reticular structure and chain object, surface have carbonyl,
Hydroxyl isoreactivity group, can effectively improve in basic asphalt carboxyl, sulfoxide group, sour glycoside group reaction effect, from
And the connection effect of modified glue powder and basic asphalt is improved, rear surface roughness is ground in a wetted condition obtains larger mention
Height increases the contact area with pitch, can be preferably in conjunction with pitch, and rubber powder modified asphalt can static storage 72h, far height
In the stability of existing rubber powder pitch.
5, the present invention can effectively reduce the loss of pitch light components by addition age resister, and be retained on
In the mixed system of rubber powder modified asphalt, under 48 DEG C or more of hot conditions, light components loss speed obtains the road of making
To being effectively reduced, road life obtains biggish extension.
Specific embodiment
The technical solution in embodiment will be clearly and completely described below.Obviously, described embodiment is only
It is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In following Examples 1 to 4, rubber powder modified asphalt mastic-broken stone mixture is prepared as follows：
Lignin fibre, aramid fiber short fibre and metaling are mixed by weight, are gathered materials by S1；
S2 will gather materials and be heated to 190 DEG C~200 DEG C；
160~180 DEG C of rubber powder modified asphalt is added while stirring, obtains rubber powder modified asphalt Ma after mixing by S3
Hoof fat crushed stones mixture.
In Examples 1 to 4, each material composition weight proportion such as following table：
| Material mass part | Rubber powder modified asphalt | Lignocellulosic | Aramid fiber short fibre | Metaling |
| Embodiment 1 | 25 | 1 | 8 | 150 (basalt) |
| Embodiment 2 | 25 | 3 | 4 | 100 (limestone) |
| Embodiment 3 | 10 | 2 | 6 | 120 (basalt, limestone mixtures) |
| Embodiment 4 | 18 | 2 | 6 | 130 (basalt, limestone mixtures) |
In Examples 1 to 4, the metaling gradation range of distribution such as following table：
| Slot size (mm) | 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| 1 percent of pass of embodiment (%) | 100 | 100 | 85 | 65 | 32 | 24 | 22 | 18 | 15 | 14 | 10 |
| 2 percent of pass of embodiment (%) | 100 | 97 | 80 | 60 | 29 | 20 | 20 | 16 | 14 | 12 | 9 |
| 3 percent of pass of embodiment (%) | 100 | 94 | 73 | 52 | 26 | 17 | 16 | 14 | 13 | 11 | 7 |
| 4 percent of pass of embodiment (%) | 100 | 90 | 65 | 45 | 20 | 15 | 14 | 12 | 10 | 9 | 6 |
In Examples 1 to 4, there are difference by the preparation process of the rubber powder modified asphalt, now illustrate one by one.
Embodiment 1
A kind of rubber powder modified asphalt, is made by the steps：
S1 weighs following substance by weight：10~30 purposes are given up 10 parts of cross-ply rubber powder, four thioacetic acid of pentaerythrite
0.6 part of ester, 1 part of BH-MM of slow hardening type cation asphalt emulgent is split slowly, rosin glycerides 3 by 60 parts of 90# bi tumenf orr oad
Part；
Waste tyre rubber powder is completely immersed in water by S2, and the potassium ferrate of water total weight 1% is added, under the conditions of 30 DEG C, with
After the speed of 20rpm persistently stirs immersion 1h, the particulate material of 30~80 mesh ground in a wetted condition；
S3 melts 90# bi tumenf orr oad under the conditions of 140~150 DEG C, after being warming up to 170~190 DEG C, is added pre-
It is heated to be liquid rosin glycerides, after mixing evenly, the particulate material that step S2 is obtained is added, in 180~190 DEG C of items
1h is stirred under part, the shoddy composite modified asphalt of highly anti-fatigue cracking resistance is made.
Embodiment 2
A kind of rubber powder modified asphalt, is made by the steps：
S1 weighs following substance by weight：10~30 purposes are given up 10 parts of cross-ply rubber powder, four thioacetic acid of pentaerythrite
0.6 part of ester, 60 parts of 130# bi tumenf orr oad, 3 parts of rosin glycerides；
Useless cross-ply rubber powder is completely immersed in water by S2, the potassium ferrate of water total weight 1% is added, in 30 DEG C of conditions
Under, it is persistently stirred with the speed of 20rpm after impregnating 1h, the particulate material of 30~80 mesh ground in a wetted condition；
S3 melts 130# bi tumenf orr oad under the conditions of 140~150 DEG C, after being warming up to 170~190 DEG C, is added pre-
It is heated to be liquid rosin glycerides, after mixing evenly, that four mercaptoacetate of pentaerythrite and step S2 are obtained is added
Particulate matter stirs 1h under the conditions of 180~190 DEG C, and rubber powder modified asphalt is made.
Embodiment 3
A kind of rubber powder modified asphalt, is made by the steps：
S1 weighs following substance by weight：10~30 purposes are given up 30 parts of radial rubber powder, four sulfydryl fourth of pentaerythrite
0.6 part of acid esters, 90 parts of 70# bi tumenf orr oad, 4 parts of isobutyl stearate；
Useless radial rubber powder is completely immersed in water by S2, the potassium ferrate of water total weight 1% is added, in 25 DEG C of items
Under part, persistently stirred with the speed of 30rpm after impregnating 0.5h, the granular substance of 30~80 mesh ground in a wetted condition
Matter；
S3 melts 70# bi tumenf orr oad under the conditions of 140~150 DEG C, after being warming up to 170~190 DEG C, is added pre-
It is heated to be liquid isobutyl stearate, after mixing evenly, is added what four mercaptobutylate of pentaerythrite and step S2 were obtained
Particulate material stirs 2h under the conditions of 180~190 DEG C, and rubber powder modified asphalt is made.
Embodiment 4
A kind of rubber powder modified asphalt, is made by the steps：
S1 weighs following substance by weight：20 parts of the waste tyre rubber powder of 10~30 mesh, four mercaptobutylate of pentaerythrite
0.1 part.0.4 part of four mercaptobutylate of pentaerythrite, 80 parts of 70# bi tumenf orr oad, 3 parts of rosin glycerides, isobutyl
2 parts of ester；
Waste tyre rubber powder is completely immersed in water by S2, the potassium ferrate of water total weight 1~2% is added, in 20~30 DEG C of items
It under part, is persistently stirred with the speed of 20~30rpm after impregnating 0.5~1h, 30~80 purposes ground in a wetted condition
Particulate material；
S3, by the fusing of 70# bi tumenf orr oad after being warming up to 170~190 DEG C, is added pre- under the conditions of 140~150 DEG C
It is heated to be liquid rosin glycerides and isobutyl stearate, after mixing evenly, four mercaptoacetate of pentaerythrite, season is added
The particulate material penta tetrol four mercaptobutylates and obtained with step S2 stirs 1~2h under the conditions of 180~190 DEG C, is made
Rubber powder modified asphalt.
The waste tyre rubber powder be go after discarded cross-ply, radial, the crushing in wheels tire it is deimpurity
Mixture.
By realizing the parameter of test above-described embodiment, detection method is referring to table 1.
1 data test technical indicator of table and detection method
| Technical indicator | Parameter | Test method |
| 60 DEG C of dynamic stabilities (secondary/mm) | ≥3200 | T0719 |
| Residual stability (%) | ≥85 | T0709 |
| It cleaves retained strength ratio (%) | ≥80 | T0729 |
| - 10 DEG C of bending failures strain (me) | ≥2800 | T0715 |
| Infiltration coefficient (ml/min) | ≥80 | T0730 |
The test data of Examples 1 to 4 such as following table,
2 Examples 1 to 4 test data of table
| Technical indicator | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 60 DEG C of dynamic stabilities (secondary/mm) | 3622 | 3604 | 3598 | 3587 |
| Residual stability (%) | 94.4 | 94.2 | 94.1 | 94.1 |
| It cleaves retained strength ratio (%) | 93.5 | 93.3 | 90.4 | 90.1 |
| - 10 DEG C of bending failures strain (me) | 3216 | 3193 | 3166 | 3172 |
| Infiltration coefficient (ml/min) | 88 | 868 | 87 | 86 |
The performance test data of rubber powder modified asphalt are all satisfied current specifications it can be seen from the above test data《Highway
Engineering pitch and Asphalt Mixture Experiment regulation》(JTG E20) is to the technical indicator of modified asphalt mixture.
Claims (7)
1. a kind of rubber powder modified asphalt mastic-broken stone mixture, which is characterized in that in parts by weight, including following component：Glue
It is 10~25 parts of powder-modified asphalt, 1~3 part of lignin fibre, 4~8 parts of aramid fiber short fibre, 100~150 parts of metaling, described broken
Building stones grading limit such as following table：
。
2. rubber powder modified asphalt mastic-broken stone mixture according to claim 1, which is characterized in that the metaling choosing
From basaltic broken stone, and/or, limestone gravel.
3. rubber powder modified asphalt mastic-broken stone mixture according to claim 1, which is characterized in that in parts by weight,
The rubber powder modified asphalt includes following component：10~30 parts of modified glue powder, 0.3~0.6 part of plasticizer, basic asphalt 60~90
Part and 2~5 parts of age resister；
The modified glue powder is made by the following method, and waste tyre rubber powder is completely immersed in water, and water total weight 1~2% is added
Potassium ferrate, under the conditions of 20~30 DEG C, with the speed of 20~30rpm persistently stir impregnate 0.5~1h after, in wet condition
The lower above-mentioned waste tyre rubber powder of grinding, is made the modified glue powder of 30~60 mesh.
4. rubber powder modified asphalt mastic-broken stone mixture according to claim 3, which is characterized in that the plasticizer packet
Four mercaptoacetate of pentaerythrite is included, and/or, four mercaptobutylate of pentaerythrite.
5. rubber powder modified asphalt mastic-broken stone mixture according to claim 3, which is characterized in that the basic asphalt
For 130~70# bi tumenf orr oad.
6. rubber powder modified asphalt mastic-broken stone mixture according to claim 3, which is characterized in that the age resister
Including rosin glycerides, and/or, isobutyl stearate.
7. a kind of preparation method of rubber powder modified asphalt mastic-broken stone mixture as described in claim 1, which is characterized in that
Include the following steps：
Lignin fibre, aramid fiber short fibre and metaling are mixed by weight, are gathered materials by S1；
S2 will gather materials and be heated to 190 DEG C~200 DEG C；
160~180 DEG C of rubber powder modified asphalt is added while stirring, obtains rubber powder modified asphalt matizhi after mixing by S3
Macadam-aggregate mix.
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| CN201811224039.6A CN108911591B (en) | 2018-10-19 | 2018-10-19 | Rubber powder modified asphalt mastic macadam mixture and preparation method thereof |
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| 李玉龙: "《高分子材料助剂》", 30 September 2008, 化学工业出版社 * |
| 桂和荣等: "《矿井水资源化技术研究》", 30 April 2011, 中国矿业大学出版社 * |
| 潘炳力: "《先进高分子材料摩擦学》", 31 August 2016, 国防工业出版社 * |
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