CN105754356A - Asphalt regenerant as well as preparation method and application thereof - Google Patents
Asphalt regenerant as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN105754356A CN105754356A CN201610180298.8A CN201610180298A CN105754356A CN 105754356 A CN105754356 A CN 105754356A CN 201610180298 A CN201610180298 A CN 201610180298A CN 105754356 A CN105754356 A CN 105754356A
- Authority
- CN
- China
- Prior art keywords
- bitumen regenerant
- asphalt
- parts
- organic montmorillonite
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 143
- 239000012492 regenerant Substances 0.000 title claims abstract description 67
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 30
- 229910017059 organic montmorillonite Inorganic materials 0.000 claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 239000000295 fuel oil Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000004014 plasticizer Substances 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 9
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 230000001172 regenerating effect Effects 0.000 claims description 14
- 239000003205 fragrance Substances 0.000 claims description 11
- 230000035515 penetration Effects 0.000 claims description 11
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 10
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 7
- -1 poly alkyl alcohol ether amide Chemical class 0.000 claims description 6
- 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 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 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
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 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 group [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 abstract description 29
- 238000011069 regeneration method Methods 0.000 abstract description 29
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 239000011295 pitch Substances 0.000 description 25
- 230000032683 aging Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 230000000704 physical effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000006185 dispersion Substances 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
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000007654 immersion Methods 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
- 238000005457 optimization 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
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001502 supplementing effect Effects 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
An asphalt regenerant is mainly prepared from 40-60 parts of a regeneration component, 15-30 parts of nano organic montmorillonite modified asphalt, 15-30 parts of a plasticizer and 1-5 parts of a penetrant; the regeneration component is mixed oil mainly formed by mixing light oil and heavy oil in proportion. The preparation method of the asphalt regenerant comprises steps as follows: a reaction kettle is preheated and heated, the regeneration component is added to the reaction kettle, the nano organic montmorillonite modified asphalt is added in parts by mass after stirring, the temperature is controlled within 130-160 DEG C, the temperature is decreased to 80-120 DEG C after stirring, the penetrant and the plasticizer are added, the mixture is stirred continuously, and the asphalt regenerant is obtained after cooling. During usage, the reaction kettle is preheated, waste aged asphalt is added, the temperature is decreased gradually after quick stirring, then a certain proportion of asphalt regenerant is added, and regenerated asphalt is obtained after quick stirring. The product performance is good, the cost is low, and the technology is simple, controllable and environment-friendly.
Description
Technical field
The invention belongs to road engineering material field, be specifically related to a kind of bitumen regenerant and its preparation method and application.
Background technology
Immediate and mid-term, the especially road construction of China's infrastructure obtains beyond example great development, Colophonium makes consumption sharply increase year by year, but the prolongation along with the time of use of existing bituminous paving and the effect by factors such as sunlight, sleet, temperature and loads, can occur aging gradually, become fragile hardening, and then produce a series of disease such as crack, pit.The domestic maintenance mode to there is disease road surface removes old pavement mainly by milling at present, again making, this mode can produce a large amount of old pavement material waste material, do not deal carefully with, will result in environmental pollution, and these waste materials still have certain value, the huge wasting of resources also will be caused as garbage disposal.Therefore, keeping or improve the service life of existing bituminous paving and the technology of regenerating waste used Colophonium will be the most effective approach solving this series of problems.
Mostly China is, at the regenerative agent used at the beginning of the 80s and 90s, the light oil that some petroleum industries produce, and such as lubricating oil, diesel oil, kerosene etc., some provinces and cities also use some road surfaces of this regenerative agent making, but proved bad.Domestic used regenerative agent is mainly the mixture of some light oils and resin at present, and in a certain degree scope, these regenerative agents can recover the physical property of aged asphalt, but its regeneration effect is not that expensive, cost performance is not high very well.
Summary of the invention
The technical problem to be solved is, overcome the deficiency and defect mentioned in background above technology, performance is better, cost is low, technique is simply controlled and eco-friendly bitumen regenerant to provide one, correspondingly provides the preparation method and application of a kind of aforementioned bitumen regenerant.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes be one bitumen regenerant, and described bitumen regenerant mainly component by following mass fraction is formulated:
Regenerative component 40～60 parts；
Nano organic montmorillonite modified pitch 15～30 parts；
Plasticizer 15～30 parts；With
Penetrating agent 1～5 part；
Described regenerative component is a kind of miscella, and described miscella is mainly mixed in proportion by light oil and heavy oil and forms.
The concrete confect mechanism of the bitumen regenerant that the present invention is above-mentioned and having the beneficial effect that:
Through our experimental studies have found that repeatedly, road asphalt is in the process of life-time service, owing to being heated, oxygen and ultraviolet effect, in Colophonium, light components (mainly oil point) can occur a large amount of volatilization and oxidation polymerization to be transformed into resin and asphalt gradually, there is greatly change in the relative amount making each component in Colophonium, destroy the colloform texture of Colophonium, cause that Colophonium becomes glutinous hardening, therefore it is proposed that the component in bitumen regenerant must be divided rich in substantial amounts of aromatics oil, in order to the relative amount of each component in supplementary adjustment aged asphalt, aged asphalt is made again to form stable colloform texture.The present invention selects light oil (Oleum Brassicae campestris) and heavy oil is composite divides as the oil in bitumen regenerant, select light oil in order that dilution aged asphalt, significantly reduce the viscosity of aged asphalt, the fragrance of disappearance in aged asphalt can be supplemented to a certain extent divide simultaneously, but all do not select to use light oil, because our contrast test shows, light oil is not sufficiently stable, easily occur aging under hot oxygen and action of ultraviolet radiation, and by by composite to light oil and heavy oil, supplementary oils is divided as fragrance main in bitumen regenerant, we have found that this can not only effectively solve the stability problem of oil content, but also there is dilution and drop glutinous action effect.
Above-mentioned bitumen regenerant, it is preferred that: described light oil is Oleum Brassicae campestris, and its fragrance point content is more than 70%.Preferred Oleum Brassicae campestris has boiling point height, does not allow volatile feature, is more suitable for the component as miscella of the present invention.
Above-mentioned bitumen regenerant, it is preferred that: described heavy oil is waste lubricating oil or furfural extract oil, and the fragrance of described heavy oil divides content more than 75%.
Above-mentioned bitumen regenerant, it is preferred that: described light oil and heavy oil are to mix by the mass ratio of 1: 1.5～3.
We are by determining the optimization compound proportion of other each components in light oil, heavy oil and bitumen regenerant after a large amount of Experiment of Compatibilities, above-mentioned preferred miscella is used to divide as the oil in bitumen regenerant, its fragrance being possible not only to effectively compensate in aged asphalt divides, regulate the relative amount of each component in aged asphalt, but also better aged asphalt can be played dilution and drop glutinous effect, and bitumen regenerant can be sufficiently mixed with aged asphalt in shorter time, it is more beneficial for promoting comprehensive recovery of aged asphalt performance.
In above-mentioned bitumen regenerant, we are by studying the compatibility repeatedly of aged asphalt and regenerative component and find after experiment, according to " composition regulation is theoretical " that produce asphalt, by adding above-mentioned preferred miscella, the disappearance component effectively supplementing in aged asphalt can be carried out, may also operate as the effect of dilution viscosity reduction simultaneously.
Montmorillonite is as a kind of hydrophilic mineral powder modifying agent, and it can improve the high-temperature behavior of Colophonium, but sodium-based montmorillonite common in the market it is very poor with the bitumen compatibility of oiliness, dispersion is not easily, it is difficult to reach significant modifying function.Present invention preferably employs sodium-based montmorillonite common on market as raw material, by carrying out organically-modified with cetyl trimethylammonium bromide (CTAB) to it, then adopt melt intercalated method to prepare nano organic montmorillonite modified pitch.In aforesaid bitumen regenerant, it is preferred that: the needle penetration of the matrix pitch used by described nano organic montmorillonite modified pitch is 60～110dmm, and in described nano organic montmorillonite modified pitch, the volume of nano organic montmorillonite is 5%～15%.nullUsing the nano organic montmorillonite modified pitch that is achieved in that as a modified component in the bitumen regenerant of the present invention，By making sodium-based montmorillonite be changed into lipophile by hydrophilic after organic modification，It is made to have the better compatibility with other components in aged asphalt and bitumen regenerant，Nano organic montmorillonite specific surface area can also be utilized big simultaneously、Surface can be high、The feature that the compatibility is good reduces in aged asphalt originally owing to the surface energy of pockets of macromole asphaltene molecules is rolled up in aging polymerization，Be conducive to that macromole is bitum unfolds，Coordinate and divide together with dioctyl phthalate with miscella，Just the purpose of colloform texture and the physical properties again recovering aged asphalt can be reached better，The high-temperature behavior of gained regeneration asphalt can also be improved simultaneously，Improve the ageing resistace of regeneration asphalt，Improve the service life of regeneration asphalt.
We show substantial amounts of researching and analysing, Colophonium is centered by the asphalitine that relative molecular mass that polarity is stronger is bigger, the gum formation dispersion phase of some both sexes of ambient absorption, is scattered in the nonpolar fragrance of liquid and divides and divide in disperse medium with the saturated oil being grouped into, form stable colloid.Colophonium is after aging for a long time, and asphalt content can significantly raise, and the relative amount of colloid reduces, and causes that Colophonium becomes fragile, and ductility reduces greatly.In above-mentioned bitumen regenerant, the present invention preferably uses dioctyl phthalate (DOP) as the improving agent of aged asphalt ductility a kind of in bitumen regenerant, because the effect of asphalitine and oil point is similar to colloid by dioctyl phthalate, containing phenyl ring in its molecular structure, the ester group that on phenyl ring, polarity is stronger can the asphaltene molecules stronger with Colophonium Semi-polarity interact, reduce the strong interaction between asphaltene molecules, simultaneously the nonpolar moiety methene chain in its molecule divides with the nonpolar oil in Colophonium again and has the good compatibility, the pockets of asphaltene molecules of high polymeric originally is made to retrieve dissolving, thus improving the mobility of aged asphalt, contribute to recovering the colloform texture of aged asphalt.It addition, dioctyl phthalate reach foregoing advantages at the same time it can also be improve the cryogenic property of bitumen regenerant better.
Above-mentioned bitumen regenerant, it is preferred that: described penetrating agent is the one in poly alkyl alcohol ether amide, Dodecyl trimethyl ammonium chloride.The permeability of bitumen regenerant of the present invention can be improved better by adding this preferred penetrating agent, after other component mating reactions, bitumen regenerant immersion aging Colophonium within the shorter time can be made, each component in bitumen regenerant can be played a role faster, promote comprehensive recovery of aged asphalt performance.
Conceive as a total technology, the preparation method that the present invention also provides for a kind of above-mentioned bitumen regenerant, comprise the following steps:
(1) preheat reactor and be warming up to 110 DEG C～150 DEG C, in reactor, adding regenerative component by described mass fraction, stirring 5～15min；
(2) after having stirred, then add nano organic montmorillonite modified pitch by described mass fraction, control temperature at 130 DEG C～160 DEG C, stir 15～30min；Mixing speed is 6000～10000r/min；
(3) after having stirred, it is cooled to 80 DEG C～120 DEG C, adds penetrating agent and the plasticizer of described mass parts, continue stirring 5～15min, cool down gradually subsequently, finally give bitumen regenerant.
Conceiving as a total technology, the present invention also provides for the application of a kind of above-mentioned bitumen regenerant, comprises the following steps:
(1) preheating reactor, heating, to 160 DEG C～180 DEG C, is subsequently adding useless aged asphalt, quickly stirs 15～25min, and mixing speed is 7000～8000r/min；
(2) after having stirred, it is cooled to 140 DEG C～160 DEG C gradually, adds by useless aged asphalt mass fraction than the described bitumen regenerant being 12%～16%, quickly stir 20～35min, the Colophonium after being regenerated.In the aging mix process occurring mainly in asphalt of Colophonium, therefore use the time that should as far as possible shorten regeneration mix during the rejuvenating aged Colophonium of the bitumen regenerant of the present invention, weaken that aged asphalt secondary in regenerative process is aging and regenerative agent itself aging.
Compared with existing bitumen regenerant, the technique scheme of the present invention is from recovering aged asphalt physical property and improving regeneration asphalt physical property two aspect and consider simultaneously, each component contained in bitumen regenerant all has the good compatibility with Colophonium, and it is also compatible between each component, aged asphalt regenerative process can cooperate, dissolve each other each other, may advantageously facilitate the recovery of aged asphalt properties.On the whole, the bitumen regenerant using the present invention can not only effectively make up the light components (fragrance point) of disappearance in aged asphalt, improve the plasticity of aged asphalt, improve the physical property of aged asphalt, but also the anti-rut behavior of gained regeneration asphalt can be effectively improved.Meanwhile, the material selected by the present invention is all environmentally friendly, and preparation method is simply controlled, and prospects for commercial application is better.
Detailed description of the invention
For the ease of understanding the present invention, below in conjunction with preferred embodiment, the present invention is made more comprehensively, describes meticulously, but protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, the implication that all technical term used hereinafter is generally understood that with those skilled in the art is identical.Technical term used herein is intended merely to the purpose describing specific embodiment, is not intended to limit the scope of the invention.
Unless otherwise specified, the various raw materials used in the present invention, reagent, instrument and equipment etc. all can be commercially available by market or can be prepared by existing method.
Embodiment 1:
A kind of bitumen regenerant of the present invention, mainly the component by following mass fraction is formulated:
Miscella 50 parts；This miscella is mainly mixed by the mass ratio of 1: 2 by Oleum Brassicae campestris (its fragrant point content is more than 70%, lower same) and waste lubricating oil (its fragrance point content is more than 75%, lower same)；
Nano organic montmorillonite modified pitch 25 parts；The needle penetration of the matrix pitch used by nano organic montmorillonite modified pitch is 75dmm, and in nano organic montmorillonite modified pitch, the volume of nano organic montmorillonite is 13%；
Plasticizer phthalic acid dioctyl ester 25 parts；
Penetrating agent fatty alcohol-polyoxyethylene ether 3 parts.
The preparation method of the bitumen regenerant of above-mentioned the present embodiment specifically includes following steps: preheating reactor, to 130 DEG C, weighs 50 parts of miscellas in the ratio of Oleum Brassicae campestris and waste lubricating oil=1 2 and joins in reactor, quickly stir 8min；Then weighing nano organic montmorillonite modified pitch 25 parts above-mentioned in proportion and put into reactor, be heated to 150 DEG C, high shear agitation 20min, mixing speed is 8000r/min；It is cooled to 110 DEG C after having stirred gradually, once adds dioctyl phthalate 25 parts above-mentioned and poly alkyl alcohol ether amide 3 parts above-mentioned, continue quickly to stir 10min, be then gradually cooling to room temperature and namely obtain a kind of bitumen regenerant.
Being applied by the bitumen regenerant of above-mentioned the present embodiment, the aged asphalt of regeneration is a kind of aging 8h gained of the rotated thin film oven of 50# matrix pitch 165 DEG C, and the needle penetration before this matrix pitch is aging is 48dmm, softening point be 49 DEG C, 15 DEG C ductilities is 118cm.The regeneration step of this aged asphalt is as follows:
(1) preheating reactor, heating, to 175 DEG C, is subsequently adding useless aged asphalt, quickly stirs 20min, and mixing speed is 8000r/min；
(2) after having stirred, it is cooled to 150 DEG C gradually, adds the bitumen regenerant by the preparation more above-mentioned than the present embodiment being 12%, 16% of useless aged asphalt mass fraction, quickly stir 30min, make the useless aged asphalt of road be regenerated.
The above-mentioned useless aged asphalt forward and backward needle penetration of regeneration, softening point and ductility performance are tested, and data are shown in Table 1.
Table 1: embodiment 1 give up aged asphalt regeneration before and after test data
Embodiment 2:
A kind of bitumen regenerant of the present invention, mainly the component by following mass fraction is formulated:
Miscella 45 parts；This miscella is mainly mixed by the mass ratio of 1: 2.5 by Oleum Brassicae campestris and furfural extract oil (its fragrance point content is more than 75%, lower same)；
Nano organic montmorillonite modified pitch 30 parts；The needle penetration of the matrix pitch used by nano organic montmorillonite modified pitch is 75dmm, and in nano organic montmorillonite modified pitch, the volume of nano organic montmorillonite is 8%；
Plasticizer phthalic acid dioctyl ester 30 parts；
Penetrating agent Dodecyl trimethyl ammonium chloride 2 parts.
The preparation method of the bitumen regenerant of above-mentioned the present embodiment specifically includes following steps: preheating reactor, to 120 DEG C, weighs 45 parts of miscellas in the ratio of Oleum Brassicae campestris and furfural extract oil=1 2.5 and joins in reactor, quickly stir 10min；Then weighing nano organic montmorillonite modified pitch 30 parts above-mentioned in proportion and put into reactor, be heated to 140 DEG C, high shear agitation 15min, mixing speed is 9000r/min；It is cooled to 100 DEG C after having stirred gradually, is sequentially added into dioctyl phthalate 30 parts above-mentioned and Dodecyl trimethyl ammonium chloride 2 parts above-mentioned, continue quickly to stir 15min, be then gradually cooling to room temperature and namely obtain a kind of bitumen regenerant.
Being applied by the bitumen regenerant of above-mentioned the present embodiment, the aged asphalt of regeneration is a kind of aging 8h gained of the rotated thin film oven of 50# matrix pitch 165 DEG C, and the needle penetration before this matrix pitch is aging is 48dmm, softening point be 49 DEG C, 15 DEG C ductilities is 118cm.The regeneration step of this useless aged asphalt is as follows:
(1) preheating reactor, heating, to 175 DEG C, is subsequently adding useless aged asphalt, quickly stirs 20min, and mixing speed is 8000r/min；
(2) after having stirred, it is cooled to 150 DEG C gradually, adds the bitumen regenerant by the preparation more above-mentioned than the present embodiment being 12%, 16% of useless aged asphalt mass fraction, quickly stir 30min, make the useless aged asphalt of road be regenerated.
The above-mentioned useless aged asphalt forward and backward needle penetration of regeneration, softening point and ductility performance are tested, and data are shown in Table 2.
Table 2: embodiment 2 give up aged asphalt regeneration before and after test data
Comparative example:
Preheating reactor, to 130 DEG C, weighs 50 parts of miscellas in the ratio of light oil heavy oil=1 2 and joins in reactor, quickly stir 8min；Then weighing 25 parts of matrix pitches in proportion and put into reactor, be heated to 150 DEG C, high shear agitation 20min, mixing speed is 8000r/min；It is cooled to 110 DEG C after having stirred gradually, once adds 25 parts of dioctyl phthalates and 3 parts of poly alkyl alcohol ether amide, continue quickly to stir 10min, be then gradually cooling to room temperature and namely obtain a kind of bitumen regenerant.
Being applied by the bitumen regenerant of above-mentioned comparative example, the road waste asphalt of regeneration is the useless aged asphalt of a kind of 50# reclaimed by road repair, and the regeneration step of this useless aged asphalt is as follows:
(1) preheating reactor, heating, to 175 DEG C, is subsequently adding useless aged asphalt, quickly stirs 20min, and mixing speed is 8000r/min；
(2) after having stirred, it is cooled to 150 DEG C gradually, adds the bitumen regenerant by the preparation more above-mentioned than the present embodiment being 16% of useless aged asphalt mass fraction, quickly stir 30min, make the useless aged asphalt of road be regenerated.
Testing adding the needle penetration of the regeneration asphalt that volume is 16% of organo montmorillonite, softening point and ductility performance in the above-mentioned regeneration asphalt being not added with organo montmorillonite and embodiment 1, data are shown in Table 3.
Table 3: embodiment 1 regeneration asphalt and comparative example's regeneration asphalt test data
From upper table 1 and table 2 it can be seen that after using the bitumen regenerant of the present invention, needle penetration and the ductility of useless aged asphalt obtain and significantly improve, and softening point reduces, and has reached the demand of technical standard of 50# Colophonium.As can be known from Table 3, the addition of nano organic montmorillonite modified pitch can improve softening point and the Rutting parameter of regeneration asphalt to a certain extent, improve the high-temperature behavior of regeneration asphalt, the PG classification making regeneration asphalt is brought up to 70 grades by 64, after using the rotated thin film oven aging experiment of regeneration asphalt of the regenerative agent gained adding nano organic montmorillonite modified pitch simultaneously, its needle penetration, ductility and ductility residual degree are better than un-added than all notable, illustrate that the addition of nano organic montmorillonite modified pitch can improve the ageing resistace of gained regeneration asphalt.
Claims (10)
1. a bitumen regenerant, it is characterised in that described bitumen regenerant mainly component by following mass fraction is formulated:
Regenerative component 40～60 parts；
Nano organic montmorillonite modified pitch 15～30 parts；
Plasticizer 15～30 parts；With
Penetrating agent 1～5 part；
Described regenerative component is a kind of miscella, and described miscella is mainly mixed in proportion by light oil and heavy oil and forms.
2. bitumen regenerant according to claim 1, it is characterised in that: described light oil is Oleum Brassicae campestris, and its fragrance point content is more than 70%.
3. bitumen regenerant according to claim 1, it is characterised in that: described heavy oil is waste lubricating oil or furfural extract oil, and the fragrance of described heavy oil divides content more than 75%.
4. the bitumen regenerant according to claim 1,2 or 3, it is characterised in that: described light oil and heavy oil are to mix by the mass ratio of 1: 1.5～3.
5. the bitumen regenerant according to claim 1,2 or 3, it is characterized in that: described nano organic montmorillonite modified pitch is using sodium-based montmorillonite as raw material, by carrying out organically-modified with cetyl trimethylammonium bromide to it, melt intercalated method is then adopted to prepare.
6. bitumen regenerant according to claim 5, it is characterized in that: the needle penetration of the matrix pitch used by described nano organic montmorillonite modified pitch is 60～110dmm, in described nano organic montmorillonite modified pitch, the volume of nano organic montmorillonite is 5%～15%.
7. the bitumen regenerant according to claim 1,2 or 3, it is characterised in that: described plasticizer is dioctyl phthalate.
8. the bitumen regenerant according to claim 1,2 or 3, it is characterised in that: described penetrating agent is the one in poly alkyl alcohol ether amide, Dodecyl trimethyl ammonium chloride.
9. a preparation method for the bitumen regenerant as according to any one of claim 1～8, comprises the following steps:
(1) preheat reactor and be warming up to 110 DEG C～150 DEG C, in reactor, adding regenerative component by described mass fraction, stirring 5～15min；
(2) after having stirred, then add nano organic montmorillonite modified pitch by described mass fraction, control temperature at 130 DEG C～160 DEG C, stir 15～30min；
(3) after having stirred, it is cooled to 80 DEG C～120 DEG C, adds penetrating agent and the plasticizer of described mass parts, continue stirring 5～15min, cool down gradually subsequently, finally give bitumen regenerant.
10. an application for the bitumen regenerant as according to any one of claim 1～8, comprises the following steps:
(1) preheating reactor, heating, to 160 DEG C～180 DEG C, is subsequently adding useless aged asphalt, quickly stirs 15～25min, and mixing speed is 7000～8000r/min；
(2) after having stirred, it is cooled to 140 DEG C～160 DEG C gradually, adds by useless aged asphalt mass fraction than the described bitumen regenerant being 12%～16%, quickly stir 20～35min, the Colophonium after being regenerated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180298.8A CN105754356B (en) | 2016-03-28 | 2016-03-28 | A kind of bitumen regenerant and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180298.8A CN105754356B (en) | 2016-03-28 | 2016-03-28 | A kind of bitumen regenerant and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105754356A true CN105754356A (en) | 2016-07-13 |
| CN105754356B CN105754356B (en) | 2018-04-17 |
Family
ID=56346512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610180298.8A Expired - Fee Related CN105754356B (en) | 2016-03-28 | 2016-03-28 | A kind of bitumen regenerant and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105754356B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107828222A (en) * | 2017-11-13 | 2018-03-23 | 甘肃畅陇公路养护技术研究院有限公司 | A kind of bitumen regenerant and its preparation method and application |
| CN108359252A (en) * | 2018-02-09 | 2018-08-03 | 重庆交通大学 | The method for making matrix pitch warm mix regenerative agent |
| CN109439005A (en) * | 2018-11-08 | 2019-03-08 | 山东大学 | A kind of ageing-resistant unmade way bitumen regenerant |
| CN109735122A (en) * | 2018-12-11 | 2019-05-10 | 清华大学深圳研究生院 | A kind of enhanced bitumen 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 |
| CN112094505A (en) * | 2020-11-04 | 2020-12-18 | 佛山市交通科技有限公司 | SBS modified asphalt regenerant and preparation method thereof |
| CN113462175A (en) * | 2021-06-30 | 2021-10-01 | 国路高科（北京）工程技术研究院有限公司 | Modified recycled material and application thereof |
| CN113980480A (en) * | 2021-10-26 | 2022-01-28 | 中国石油化工股份有限公司 | Asphalt ductility enhancer for roads 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-03-28 CN CN201610180298.8A patent/CN105754356B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107828222A (en) * | 2017-11-13 | 2018-03-23 | 甘肃畅陇公路养护技术研究院有限公司 | A kind of bitumen regenerant and its preparation method and application |
| 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 |
| CN108359252A (en) * | 2018-02-09 | 2018-08-03 | 重庆交通大学 | The method for making matrix pitch warm mix regenerative agent |
| 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 |
| CN109735122A (en) * | 2018-12-11 | 2019-05-10 | 清华大学深圳研究生院 | A kind of enhanced bitumen 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 |
| CN112094505A (en) * | 2020-11-04 | 2020-12-18 | 佛山市交通科技有限公司 | SBS modified asphalt regenerant and preparation method thereof |
| CN113462175A (en) * | 2021-06-30 | 2021-10-01 | 国路高科（北京）工程技术研究院有限公司 | Modified recycled material and application thereof |
| CN113980480A (en) * | 2021-10-26 | 2022-01-28 | 中国石油化工股份有限公司 | Asphalt ductility enhancer for roads 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 |
| CN116640456B (en) * | 2023-06-14 | 2024-05-24 | 广州大学 | Supported halloysite nanotube modified asphalt and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105754356B (en) | 2018-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105754356A (en) | Asphalt regenerant as well as preparation method and application thereof | |
| Fang et al. | Comprehensive review on the application of bio-rejuvenator in the regeneration of waste asphalt materials | |
| CN105293996B (en) | A kind of preparation method of warm-mixed recycled asphalt mixture | |
| CN1330715C (en) | Sulfur additives for paving binders and manufacturing methods | |
| Geng et al. | Laboratory performance evaluation of a cold patching asphalt material containing cooking waste oil | |
| CN110294943A (en) | A kind of unmade way bitumen regenerant and its preparation method and application | |
| CN107629472A (en) | A kind of osmosis type bitumen regenerant and preparation method thereof | |
| CN101475746A (en) | Waste asphalt reclaiming agent and preparation thereof | |
| US8926741B2 (en) | Process for manufacturing cold bituminous mixes, cold bituminous mixes with controlled workability and use thereof for producing road pavements | |
| CN107603252A (en) | Cost of New Type Asphalt Pavement regeneration regenerative agent and preparation method thereof | |
| CN105255206A (en) | Warm-mixed recycled asphalt and preparation method thereof | |
| CN109943084A (en) | A kind of response type hot asphalt regenerative agent and preparation method | |
| CN104672928B (en) | Low-viscosity regenerant for thermal regeneration of asphalt pavement, preparation method of low-viscosity regenerant and asphalt pavement thermal-regeneration mixture containing low-viscosity regenerant | |
| CN101735628A (en) | Waste tire rubber powder modified asphalt and preparation method thereof | |
| CN105504844A (en) | Environment-friendly asphalt reclaiming agent and preparing method and using method thereof | |
| CN104211326A (en) | Regenerated warm mix asphalt mixture and preparation method thereof | |
| CA2822153A1 (en) | Asphalt mixture without virgin bitumen based on recycled materials | |
| CN101633743B (en) | Road waste asphalt regenerant and preparation method | |
| Peng et al. | Laboratory evaluation of different bio-oil recycled aged asphalts: Conventional performances and microscopic characteristics | |
| CN101817985B (en) | Modified asphalt regeneration agent as well as preparation method and application thereof | |
| CN103739872A (en) | Waste SBS (Styrene Butadiene Styrene) modified asphalt recycling method | |
| CN102558879A (en) | Compound asphalt mixture wet-mixing additive and preparation method thereof | |
| Zhao et al. | Full-component cascade utilization of waste cooking oil in asphalt materials | |
| CN109943086A (en) | A kind of oil rub resistance modified pitch and preparation method thereof | |
| CN109161213B (en) | Composition for cold regeneration of old asphalt and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |