CN105754356B - A kind of bitumen regenerant and its preparation method and application - Google Patents
A kind of bitumen regenerant and its preparation method and application Download PDFInfo
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- CN105754356B CN105754356B CN201610180298.8A CN201610180298A CN105754356B CN 105754356 B CN105754356 B CN 105754356B CN 201610180298 A CN201610180298 A CN 201610180298A CN 105754356 B CN105754356 B CN 105754356B
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- bitumen regenerant
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- organic montmorillonite
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- 239000012492 regenerant Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
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- 239000003921 oil Substances 0.000 claims abstract description 30
- 229910017059 organic montmorillonite Inorganic materials 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 230000001172 regenerating effect Effects 0.000 claims abstract description 16
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- 238000001816 cooling Methods 0.000 claims abstract description 5
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- 239000011159 matrix material Substances 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 9
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 8
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 7
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 3
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical group C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- 229920000570 polyether Polymers 0.000 claims 1
- 239000011295 pitch Substances 0.000 description 48
- 230000008929 regeneration Effects 0.000 description 22
- 238000011069 regeneration method Methods 0.000 description 22
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- 238000002156 mixing Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- -1 poly alkyl alcohol ether amide Chemical class 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
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- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
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- 230000009471 action Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
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- 239000003153 chemical reaction reagent Substances 0.000 description 1
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- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- BKEOXUSOEGMVTL-UHFFFAOYSA-N trimethyl-$l^{3}-bromane Chemical compound CBr(C)C BKEOXUSOEGMVTL-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/22—Recycled asphalt
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
A kind of bitumen regenerant, is mainly made of 1~5 part of 40~60 parts of regenerative component, 15~30 parts of nano organic montmorillonite modified pitch, 15~30 parts of plasticizer and bleeding agent；Regenerative component is a kind of miscella, it is mainly mixed in proportion by light oil and heavy oil.The preparation of the bitumen regenerant comprises the following steps：Preheating reaction kettle simultaneously heats up, regenerative component is added into reaction kettle, after stirring, again nano organic montmorillonite modified pitch is added by mass fraction, temperature is controlled to be cooled to 80 DEG C~120 DEG C after stirring at 130 DEG C~160 DEG C, add bleeding agent and plasticizer, continue to stir, cooling obtains bitumen regenerant.Using when first preheat reaction kettle, add useless aged asphalt, gradually cool down after quick stirring, add a certain proportion of bitumen regenerant, the pitch after being regenerated after quick stirring.The good product performance of the present invention, cost is low, technique is simple controllable and environmental-friendly.
Description
Technical field
The invention belongs to road engineering material field, and in particular to a kind of bitumen regenerant and its preparation method and application.
Background technology
In the past 50 years, infrastructure especially road construction in China's obtains unprecedented great development, pitch usage amount
Sharply increase year by year, but existing bituminous paving is with the extension of usage time and by factors such as sunlight, sleet, temperature and loads
Effect, aging can gradually occur, become fragile and be hardened, and then produce crack, a series of diseases such as pit slot.It is domestic to there is disease at present
The maintenance mode on evil road surface mainly removes old pavement by milling, and making, this mode can produce a large amount of old pavement materials again
Expect waste material, do not deal carefully with, environmental pollution will be caused, and these waste materials still have certain utility value, as garbage disposal
Also the huge wasting of resources will be caused.Therefore, keep or improve the service life of existing bituminous paving and regenerating waste used drip
Blue or green technology will be the most effective approach that solves this series of problems.
It is the light oil of some petroleum industries production mostly China's used regenerative agent at the beginning of the 80s and 90s, such as lubricates
Oil, diesel oil, kerosene etc., some provinces and cities are also using some road surfaces of this regenerative agent making, but proved and bad.
Regenerative agent used in the country is mainly the mixture of some light oils and resin at present, and in the range of to a certain degree, these are again
Raw agent can recover the physical property of aged asphalt, but its regeneration effect is not fine, and expensive, cost performance is not high.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of to mention in background above technology and defect, there is provided one
Kind performance is more preferable, cost is low, the simple controllable and environmental-friendly bitumen regenerant of technique, correspondingly provides a kind of foregoing pitch again
The preparation method and application of raw agent.
In order to solve the above technical problems, technical solution proposed by the present invention is a kind of bitumen regenerant, the pitch regeneration
Agent is mainly formulated by the component of following mass fraction：
40~60 parts of regenerative component；
15~30 parts of nano organic montmorillonite modified pitch；
15~30 parts of plasticizer；With
1~5 part of bleeding agent；
The regenerative component is a kind of miscella, and the miscella is mainly mixed in proportion by light oil and heavy oil.
The specific confect mechanism of the above-mentioned bitumen regenerant of the present invention and have the beneficial effect that：
By we repeatedly experimental studies have found that, road asphalt is during long-time service, due to heated, oxygen and purple
The effect of outside line, in pitch light components (mainly oil) can occur largely volatilization and oxidation polymerization gradually change collagen and
Asphalitine so that greatly change occurs for the relative amount of each component in pitch, destroys the colloform texture of pitch, causes pitch to become
It is glutinous to be hardened, therefore it is proposed that the component in bitumen regenerant must be rich in substantial amounts of aromatics oil, to supplement adjusting always
Change the relative amount of each component in pitch, aged asphalt is re-formed stable colloform texture.The present invention selects light oil (dish
Seed oil) and heavy oil compound as the oil in bitumen regenerant, the purpose for selecting light oil is in order to dilute aged asphalt, significantly
The viscosity of aged asphalt is reduced, while the fragrance point lacked in aged asphalt can be supplemented to a certain extent, but not all choosings
Select and use light oil, because our contrast test shows that light oil is not sufficiently stable, under hot oxygen and action of ultraviolet radiation easily
Generation aging, and by the way that light oil and heavy oil are compounded, as fragrance main in bitumen regenerant point supplement oils, Wo Menfa
Existing this can not only effectively solve the stability problem of oil content, but also glutinous action effect is dropped with dilution.
Above-mentioned bitumen regenerant, preferably：The light oil is rapeseed oil, its fragrance divides content to be more than 70%.It is preferred that
Rapeseed oil have the characteristics that boiling point is high, it is volatile not allow, more suitable for the component as miscella of the present invention.
Above-mentioned bitumen regenerant, preferably：The heavy oil is waste lubricating oil or furfural extract oil, the fragrance of the heavy oil
Content is divided to be more than 75%.
Above-mentioned bitumen regenerant, preferably：The light oil and heavy oil are mixed by 1: 1.5~3 mass ratio.
We are by determining the excellent of other each components in light oil, heavy oil and bitumen regenerant after a large amount of Experiment of Compatibility
Change compound proportion, using above-mentioned preferable miscella as the oil in bitumen regenerant, it not only can effectively be compensated always
Change the fragrance point in pitch, adjust the relative amount of each component in aged asphalt, but also preferably aged asphalt can be risen
The effect glutinous to dilution drop, and bitumen regenerant is sufficiently mixed in shorter time with aged asphalt, it is more advantageous to
Promote comprehensive recovery of aged asphalt performance.
In above-mentioned bitumen regenerant, after we are by studying and testing to the compatibility repeatedly of aged asphalt and regenerative component
It was found that according to " composition regulation theoretical " of production asphalt, by adding above-mentioned preferable miscella, can effectively supplement
Missing component in aged asphalt, while can also play the role of diluting viscosity reduction.
As a kind of hydrophilic mineral powder modifying agent, it can improve the high-temperature behavior of pitch for montmorillonite, but at present
It is very poor with the bitumen compatibility of oiliness for the common sodium-based montmorillonite of in the market, scattered to be not easy, it is difficult to reaches significant modified work
With.Present invention preferably employs the common sodium-based montmorillonite of in the market as raw material, by using cetyl trimethylammonium bromide
(CTAB) it is carried out organically-modified, nano organic montmorillonite modified pitch is then prepared using melt intercalated method.Foregoing
In bitumen regenerant, preferably：The needle penetration of matrix pitch used in the nano organic montmorillonite modified pitch for 60~
110dmm, the volume of nano organic montmorillonite is 5%~15% in the nano organic montmorillonite modified pitch.It will be achieved in that
Nano organic montmorillonite modified pitch as the present invention bitumen regenerant in a modified component, pass through organic modification
Afterwards so that sodium-based montmorillonite is changed into lipophile by hydrophily, it is set to have with other components in aged asphalt and bitumen regenerant
More preferable compatibility, at the same can also be big, surface energy is high, compatibility is good using nano organic montmorillonite specific surface area the characteristics of come
Reduce in aged asphalt originally since the surface energy of pockets of macromolecular asphaltene molecules is rolled up in aging polymerization, be conducive to macromolecular
Asphalitine is unfolded, and is coordinated to mix oil and dioctyl phthalate together, can preferably be reached and recover aging again
The colloform texture of pitch and the purpose of physical properties, while the high-temperature behavior of gained regeneration asphalt can also be improved, improve
The anti-aging property of regeneration asphalt, improves the service life of regeneration asphalt.
We, which largely research and analyse, shows, pitch be using the larger asphalitine of the stronger relative molecular mass of polarity in
The heart, the colloid of some both sexes of ambient absorption form dispersed phase, are scattered in nonpolar fragrance point and the saturation packet of liquid
In oil decentralized medium, stable colloid is formed.Pitch is after long-time aging, and asphalt content can be raised significantly, colloid
Relative amount reduce, cause pitch to become fragile, ductility greatly reduces.In above-mentioned bitumen regenerant, the present invention is preferably with neighbour
Dioctyl phthalate (DOP) is as a kind of improver of aged asphalt ductility in bitumen regenerant, because phthalic acid two
Effect of the monooctyl ester to asphalitine and oil is similar to colloid, contains phenyl ring in its molecular structure, the stronger ester group of polarity on phenyl ring
It can interact with the stronger asphaltene molecules of polarity in pitch, reduce the strong interaction between asphaltene molecules,
The nonpolar moiety methene chain in its molecule has good compatibility with the nonpolar oil in pitch again at the same time so that
The pockets of asphaltene molecules of script high polymeric retrieve dissolving, so as to improve the mobility of aged asphalt, help to recover
The colloform texture of aged asphalt.In addition, dioctyl phthalate while foregoing advantages are reached, can also preferably improve
The cryogenic property of bitumen regenerant.
Above-mentioned bitumen regenerant, preferably：The bleeding agent is poly alkyl alcohol ether amide, trimethyl bromine
Change one kind in ammonium.The permeability of bitumen regenerant of the present invention can be preferably improved by adding the preferable bleeding agent, with
After other components mating reaction, bitumen regenerant immersion aging pitch within the shorter time can be made so that bitumen regenerant
In each component can play a role faster, promote comprehensive recovery of aged asphalt performance.
The technical concept total as one, the present invention also provides a kind of preparation method of above-mentioned bitumen regenerant, including
Following steps：
(1) preheat reaction kettle and be warming up to 110 DEG C~150 DEG C, regeneration group is added by the mass fraction into reaction kettle
Point, stir 5~15min；
(2) after the completion of stirring, then by mass fraction addition nano organic montmorillonite modified pitch, temperature is controlled to exist
130 DEG C~160 DEG C, stir 15~30min；Mixing speed is 6000~10000r/min；
(3) after the completion of stirring, 80 DEG C~120 DEG C is cooled to, adds the bleeding agent and plasticizer of the mass parts, continued
5~15min is stirred, then gradually cooling, finally obtains bitumen regenerant.
The technical concept total as one, the present invention also provides a kind of application of above-mentioned bitumen regenerant, including it is following
Step：
(1) reaction kettle is preheated, is heated to 160 DEG C~180 DEG C, then adds useless aged asphalt, quickly stir 15~
25min, mixing speed are 7000~8000r/min；
(2) after the completion of stirring, 140 DEG C~160 DEG C are gradually cooled to, it is 12% to add by useless aged asphalt mass fraction ratio
~16% bitumen regenerant, quickly stirs 20~35min, the pitch after being regenerated.The aging of pitch mainly occurs
During the mix of asphalt, thus using the present invention bitumen regenerant rejuvenating aged pitch when should try one's best and shorten again
The time of raw mix, weakens secondary aging and regenerative agent aging of the aged asphalt in regenerative process in itself.
Compared with existing bitumen regenerant, above-mentioned technical proposal of the invention is from recovering aged asphalt physical property and improvement
The aspect of regeneration asphalt physical property two considers that contained each component has well with pitch in bitumen regenerant at the same time
Compatibility, and it is also compatible between each component, it can cooperate in aged asphalt regenerative process, dissolve each other each other, be conducive to
Promote the recovery of aged asphalt properties.On the whole, can not only effectively be made up always using the bitumen regenerant of the present invention
Change the light components (fragrance point) lacked in pitch, improve the plasticity of aged asphalt, improve the physical property of aged asphalt, and
The anti-rut behavior of gained regeneration asphalt can also be effectively improved.Meanwhile the material selected by the present invention is environmentally friendly, and
Preparation method is simply controllable, and prospects for commercial application is preferable.
Embodiment
For the ease of understanding the present invention, present invention work more comprehensively, is meticulously described below in conjunction with preferred embodiment,
But protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, all technical terms used hereinafter and the normally understood implication of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection domain.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1：
A kind of bitumen regenerant of the invention, is mainly formulated by the component of following mass fraction：
50 parts of miscella；The miscella is mainly by rapeseed oil (its fragrance divides content to be more than 70%, similarly hereinafter) and waste lubricating oil
(its fragrance divides content to be more than 75%, similarly hereinafter) is mixed by 1: 2 mass ratio；
25 parts of nano organic montmorillonite modified pitch；The pin of matrix pitch used in nano organic montmorillonite modified pitch enters
Spend for 75dmm, the volume of nano organic montmorillonite is 13% in nano organic montmorillonite modified pitch；
25 parts of plasticizer phthalic acid dioctyl ester；
3 parts of bleeding agent fatty alcohol polyoxyethylene ether.
The preparation method of the bitumen regenerant of above-mentioned the present embodiment specifically includes following steps：Reaction kettle is preheated to 130 DEG C,
50 parts of miscellas are weighed in the ratio of the ︰ 2 of rapeseed oil and waste lubricating oil=1 to be added in reaction kettle, quickly stir 8min；Then press
Ratio weighs 25 parts of above-mentioned nano organic montmorillonite modified pitch input reaction kettles, is heated to 150 DEG C, high speed shear is stirred
Mix 20min, mixing speed 8000r/min；110 DEG C are gradually cooled to after the completion of stirring, once adds 25 parts of above-mentioned adjacent benzene
Diformazan dioctyl phthalate and 3 parts of above-mentioned poly alkyl alcohol ether amides, continue quick stirring 10min, are then gradually cooling to room temperature i.e.
Obtain a kind of bitumen regenerant.
The bitumen regenerant of above-mentioned the present embodiment is applied, regenerated aged asphalt is a kind of 50# matrix pitches warp
Obtained by 165 DEG C of aging 8h of rotary thin film in drying oven, the needle penetration before the matrix pitch aging is 48dmm, softening point is 49 DEG C, 15 DEG C
Ductility is 118cm.The regeneration step of the aged asphalt is as follows：
(1) reaction kettle is preheated, is heated to 175 DEG C, useless aged asphalt is then added, quickly stirs 20min, mixing speed is
8000r/min；
(2) 150 DEG C are gradually cooled to after the completion of stirring, is added by useless aged asphalt mass fraction than for 12%, 16%
The bitumen regenerant of the above-mentioned preparation of the present embodiment, quickly stirs 30min, is regenerated the road aged asphalt that gives up.
Forward and backward needle penetration, softening point and ductility performance are regenerated to above-mentioned useless aged asphalt to test, data are shown in Table 1
It is shown.
Table 1：Embodiment 1 give up aged asphalt regeneration before and after test data
Embodiment 2：
A kind of bitumen regenerant of the invention, is mainly formulated by the component of following mass fraction：
45 parts of miscella；The miscella mainly by rapeseed oil and furfural extract oil (its fragrance divides content to be more than 75%, under
Mixed by 1: 2.5 mass ratio together)；
30 parts of nano organic montmorillonite modified pitch；The pin of matrix pitch used in nano organic montmorillonite modified pitch enters
Spend for 75dmm, the volume of nano organic montmorillonite is 8% in nano organic montmorillonite modified pitch；
30 parts of plasticizer phthalic acid dioctyl ester；
2 parts of bleeding agent dodecyl trimethyl ammonium bromide.
The preparation method of the bitumen regenerant of above-mentioned the present embodiment specifically includes following steps：Reaction kettle is preheated to 120 DEG C,
45 parts of miscellas are weighed in the ratio of the ︰ 2.5 of rapeseed oil and furfural extract oil=1 to be added in reaction kettle, quickly stir 10min；
Then 30 parts of above-mentioned nano organic montmorillonite modified pitch input reaction kettles are weighed in proportion, are heated to 140 DEG C, at a high speed
Shear agitation 15min, mixing speed 9000r/min；100 DEG C are gradually cooled to after the completion of stirring, sequentially add 30 parts it is above-mentioned
Dioctyl phthalate and 2 parts of above-mentioned dodecyl trimethyl ammonium bromide, continue quick stirring 15min, then gradually
It is cooled to room temperature and obtains a kind of bitumen regenerant.
The bitumen regenerant of above-mentioned the present embodiment is applied, regenerated aged asphalt is a kind of 50# matrix pitches warp
Obtained by 165 DEG C of aging 8h of rotary thin film in drying oven, the needle penetration before the matrix pitch aging is 48dmm, softening point is 49 DEG C, 15 DEG C
Ductility is 118cm.The regeneration step of the useless aged asphalt is as follows：
(1) reaction kettle is preheated, is heated to 175 DEG C, useless aged asphalt is then added, quickly stirs 20min, mixing speed is
8000r/min；
(2) 150 DEG C are gradually cooled to after the completion of stirring, is added by useless aged asphalt mass fraction than for 12%, 16%
The bitumen regenerant of the above-mentioned preparation of the present embodiment, quickly stirs 30min, is regenerated the road aged asphalt that gives up.
Forward and backward needle penetration, softening point and ductility performance are regenerated to above-mentioned useless aged asphalt to test, data are shown in Table 2
It is shown.
Table 2：Embodiment 2 give up aged asphalt regeneration before and after test data
Comparative example：
Reaction kettle is preheated to 130 DEG C, weighing 50 parts of miscellas in the ratio of the ︰ 2 of Qing Zhi You ︰ heavy oil=1 is added to reaction kettle
In, quickly stir 8min；Then 25 parts of matrix pitch input reaction kettles are weighed in proportion, are heated to 150 DEG C, high speed shear
Stir 20min, mixing speed 8000r/min；110 DEG C are gradually cooled to after the completion of stirring, once adds 25 parts of O-phthalics
Dioctyl phthalate and 3 parts of poly alkyl alcohol ether amides, continue quick stirring 10min, are then gradually cooling to room temperature and obtain a kind of drip
Blue or green regenerative agent.
The bitumen regenerant of above-mentioned comparative example is applied, regenerated road waste asphalt is a kind of by road repair time
The 50# of receipts gives up aged asphalt, and the regeneration step of the useless aged asphalt is as follows：
(1) reaction kettle is preheated, is heated to 175 DEG C, useless aged asphalt is then added, quickly stirs 20min, mixing speed is
8000r/min；
(2) after the completion of stirring, 150 DEG C are gradually cooled to, is added by useless aged asphalt mass fraction than this reality for 16%
The bitumen regenerant of the above-mentioned preparation of example is applied, quickly stirs 30min, is regenerated the road aged asphalt that gives up.
It is 16% to the volume that organo montmorillonite is added in the above-mentioned regeneration asphalt for being not added with organo montmorillonite and embodiment 1
Needle penetration, softening point and the ductility performance of regeneration asphalt tested, data are shown in Table 3.
Table 3：1 regeneration asphalt of embodiment and comparative example regeneration asphalt test data
It was found from upper Tables 1 and 2, after the bitumen regenerant using the present invention, the needle penetration and ductility of the aged asphalt that gives up
Significantly improved, softening point reduces, and has reached the demand of technical standard of 50# pitches.As can be known from Table 3, nanometer has
The addition of machine Montmorillonite Modified Asphalt can improve the softening point and Rutting parameter of regeneration asphalt to a certain extent, improve regeneration
The high-temperature behavior of pitch so that the PG classifications of regeneration asphalt bring up to 70 grades by 64, while use addition nano organic montmorillonite
After the rotated thin film oven aging experiment of regeneration asphalt obtained by the regenerative agent of modified pitch, its needle penetration, ductility and ductility are residual
Office Copy is better than significantly than un-added, illustrates the addition of nano organic montmorillonite modified pitch and can improve gained regeneration asphalt
Anti-aging property.
Claims (10)
- A kind of 1. bitumen regenerant, it is characterised in that the bitumen regenerant mainly by following mass fraction component prepare and Into：40~60 parts of regenerative component；15~30 parts of nano organic montmorillonite modified pitch；15~30 parts of plasticizer；With1~5 part of bleeding agent；The regenerative component is a kind of miscella, and the miscella is mainly mixed in proportion by light oil and heavy oil.
- 2. bitumen regenerant according to claim 1, it is characterised in that：The light oil is rapeseed oil, its fragrance point contains Amount is more than 70%.
- 3. bitumen regenerant according to claim 1, it is characterised in that：The heavy oil is extracted out for waste lubricating oil or furfural Oil, the fragrance of the heavy oil divide content to be more than 75%.
- 4. according to the bitumen regenerant described in claim 1,2 or 3, it is characterised in that：The light oil and heavy oil are by 1: 1.5 ~3 mass ratio mixes.
- 5. according to the bitumen regenerant described in claim 1,2 or 3, it is characterised in that：The nano organic montmorillonite is modified drip Green grass or young crops is using sodium-based montmorillonite as raw material, it is carried out by using cetyl trimethylammonium bromide organically-modified, is then adopted It is prepared with melt intercalated method.
- 6. bitumen regenerant according to claim 5, it is characterised in that：Used in nano organic montmorillonite modified pitch The needle penetration of matrix pitch is 60~110 dmm, and nano organic montmorillonite mixes in the nano organic montmorillonite modified pitch Measure as 5%~15%.
- 7. according to the bitumen regenerant described in claim 1,2 or 3, it is characterised in that：The plasticizer is phthalic acid Dioctyl ester.
- 8. according to the bitumen regenerant described in claim 1,2 or 3, it is characterised in that：The bleeding agent is aliphatic alcohol polyether One kind in acid amides, dodecyl trimethyl ammonium bromide.
- 9. a kind of preparation method of such as bitumen regenerant according to any one of claims 1 to 8, comprises the following steps：（1）Preheating reaction kettle is simultaneously warming up to 110 DEG C~150 DEG C, adds regenerative component by the mass fraction into reaction kettle, stirs Mix 5~15min；（2）After the completion of stirring, then by mass fraction addition nano organic montmorillonite modified pitch, control temperature is at 130 DEG C ~160 DEG C, stir 15~30min；（3）After the completion of stirring, 80 DEG C~120 DEG C are cooled to, the bleeding agent and plasticizer of the mass parts is added, continues to stir 5~15min, then gradually cooling, finally obtains bitumen regenerant.
- 10. a kind of application of such as bitumen regenerant according to any one of claims 1 to 8, comprises the following steps：（1）Reaction kettle is preheated, is heated to 160 DEG C~180 DEG C, useless aged asphalt is then added, quickly stirs 15~25min, stir It is 7000~8000r/min to mix speed；（2）After the completion of stirring, 140 DEG C~160 DEG C are gradually cooled to, it is 12%~16% to add by useless aged asphalt mass fraction ratio The bitumen regenerant, quickly stir 20~35min, the pitch after being regenerated.
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| CN106830766A (en) * | 2017-02-16 | 2017-06-13 | 昆山市交通工程有限公司 | A kind of preparation method and its construction technology of warm mix regenerating mixture |
| CN107603252A (en) * | 2017-10-24 | 2018-01-19 | 内蒙古综合交通科学研究院有限责任公司 | Cost of New Type Asphalt Pavement regeneration regenerative agent and preparation method thereof |
| CN107828222B (en) * | 2017-11-13 | 2020-11-27 | 甘肃畅陇公路养护技术研究院有限公司 | Asphalt regenerant and preparation method and application thereof |
| CN108359252B (en) * | 2018-02-09 | 2020-08-18 | 重庆交通大学 | Method for preparing matrix asphalt warm-mixing regenerant |
| CN109439005A (en) * | 2018-11-08 | 2019-03-08 | 山东大学 | A kind of ageing-resistant unmade way bitumen regenerant |
| CN109735122B (en) * | 2018-12-11 | 2021-06-29 | 清华大学深圳研究生院 | Enhanced asphalt regenerant and preparation method thereof |
| CN112029300A (en) * | 2020-08-10 | 2020-12-04 | 湖南云中再生科技股份有限公司 | Low-dosage asphalt regenerant and preparation and application methods thereof |
| CN112094505B (en) * | 2020-11-04 | 2021-06-11 | 佛山市交通科技有限公司 | SBS modified asphalt regenerant and preparation method thereof |
| CN113462175B (en) * | 2021-06-30 | 2022-11-18 | 国路高科（北京）工程技术研究院有限公司 | Modified recycled material and application thereof |
| CN113980480B (en) * | 2021-10-26 | 2023-12-12 | 中国石油化工股份有限公司 | Asphalt extender for road and preparation method thereof |
| CN116640456A (en) * | 2023-06-14 | 2023-08-25 | 广州大学 | Supported halloysite nanotube modified asphalt and preparation method thereof |
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| CN1580130A (en) * | 2004-05-19 | 2005-02-16 | 杨林江 | Waste alphalt regenerating agent and its preparing method |
| CN104387659A (en) * | 2014-11-04 | 2015-03-04 | 安徽师范大学 | On-site cold milling thermal recycling asphalt road remediation technique |
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| CN104387659A (en) * | 2014-11-04 | 2015-03-04 | 安徽师范大学 | On-site cold milling thermal recycling asphalt road remediation technique |
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