CN107057386B - A kind of processing technology and formula of bitumen finished product cementitious matter - Google Patents
A kind of processing technology and formula of bitumen finished product cementitious matter Download PDFInfo
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- CN107057386B CN107057386B CN201710379909.6A CN201710379909A CN107057386B CN 107057386 B CN107057386 B CN 107057386B CN 201710379909 A CN201710379909 A CN 201710379909A CN 107057386 B CN107057386 B CN 107057386B
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- bitumen
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- mixture
- cementitious matter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
Abstract
A kind of processing technology and formula of bitumen finished product cementitious matter, terminate the history that bitumen is only capable of applying as pitch or asphalt additive, prepare asphalt finished product bitumen cementitious matter, not only it can store and transport for a long time, and solve the problems, such as that ductility present in bitumen application process is lost.After bitumen is crushed to 300 mesh, it is proportionally added into the organic dispersing agent containing surfactant and is dispersed into flowable mixture, mixture is ground into 6000 mesh and the micro/nano level mixture of the above, then by the micro/nano level mixture and bi tumenf orr oad with 1:100‑10:After 1 ratio mixing, 1% 10% plasticizer, 1 ‰ 10 ‰ stabilizers are added, stirs and reacts 2 6h, obtain road or bituminous cements for building.
Description
Technical field
This patent be related to it is a kind of by nature exploit bitumen, be processed into can store for a long time it is used for asphalt mixture into
The technique and formula of product cementitious matter.
Background technology
Bitumen is that the petroleum resources of nature act on high temperature, high pressure by the crustal movement of 1 years, oxidation, touch
The bitumen under natural conditions formed under the effects such as matchmaker, since bitumen is formed in the earth's crust, in its component
In addition to bitumen, the mineral composition not waited containing 10%-80% also.Through XRF analysis find mineral matter mainly by Ca, Si, AL, Fe,
S, the element such as K is formed.Just because of the presence of mineral composition, bitumen shows excellent high-temperature stability, thus
Played in the heavy-load road construction materials such as High Modulus Asphalt Mixture, Rut resistance ground surface material, pouring asphalt mixture important
Effect.But the relative density of mineral matter is more than 2, and pitch relative density is 1 or so, in pitch at use temperature（It is higher than
100℃）, pitch is in liquid, if effective technological means cannot be taken, the mineral matter in bitumen will from pitch from
Analysis is precipitated out, the characteristics of not only losing bitumen, and easily silts storage tank up.
Existing traditional handicraft is that bitumen is crushed to 60 mesh, 100 mesh or 300 mesh or so, puts into asphalt tank or drip
Used in blue or green mixture mixing building.It is not right in all related patents that modified pitch is produced using bitumen as modifying agent
The storage stability of pitch makes requirement and description., it is necessary to which mixing plant is stirred continuously when bitumen is direct plungeed into pitch
To prevent from precipitating, such as Chinese patent CN200720050884《A kind of improved natural asphalt stirring tank》.Chinese patent
201610896252.6《A kind of rock asphalt fluid fine grinding is modified hybrid technique》, bitumen shearing is ground to more than 150 mesh,
Index of the patent not pair with the glued later modified pitch of matrix pitch is analyzed.China Patent No. is
CN201310430663.2《A kind of plant oil modified bituminous composition and preparation method thereof》It is used as naturally by adding vegetable oil
The dispersion of pitch obtains satisfactory road asphalt, does not also refer to problems of stability in storage；And China Patent No. is
CN201620180136.X《Nanoscopic macromolecular bitumen grinder》By the grinder of its invention in 175-300 DEG C of temperature
The bitumen that particle diameter is 2 microns is obtained, but the patent only refers to a kind of breaking method of bitumen, how be not directed to should
The asphalt cementitious matter of finished product is produced with bitumen, and the performance change of the bitumen to producing does not carry out
Analysis.Stable being dispersed in how could be obtained and reach the bitumen cementitious matter for meeting road occupation requirement in pitch, these
Invention does not all provide clear and definite method and approach.
In addition to the storage stability problem caused by due to density issue, ductility loss is also bitumen modified pitch
Technological difficulties.Since bitumen mineral grain diameter of components is too big, and disperse in pitch uneven, and particulate matter causes
Stress concentration the problems such as make modified pitch ductility lose it is serious.Such as patent 03135742.3《A kind of road asphalt modifier
And preparation method thereof》By bitumen as asphalt modifier, bitumen additive amount reaches 15%, when 20%, modified pitch
15 DEG C of ductilities 140cm is more than by initial, reduce sharply 14.5cm, 8.5cm.In patent 200410021928.4, bitumen
15 DEG C of ductilities of modified pitch also decay it is more than half, and with the increasing particle size of bitumen product, decay aggravation.Patent
In 200410040424.7, bitumen granularity is controlled at 18 microns, under 5% additive amount, 15 DEG C of ductilities of pitch according to
So fall sharply.And asked in the patent as additive of other bitumens, or by the addition compensation ductility loss of SBS
Topic, or any requirement is not done to ductility.And the present invention can not only solve the storage sex chromosome mosaicism of bitumen, and produce
15 DEG C of ductilities of road asphalt are more than 100cm.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of bitumen finished product cementitious matter
Processing technology and formula, pass through physics and chemical stabilization technology so that the mineral composition in bitumen is with 100-5000 nm
Particle diameter, it is uniform and stable to be dispersed in pitch.On the one hand according to Stokes' law, the grain diameter in liquid reduces, sedimentation
Speed reduces, therefore the present invention reduces the particle diameter of mineral particle using grinding means.On the other hand the surfaces such as silane are combined to live
Property agent and plasticizer, the effect of stabilizer, while reducing the surface tension of particulate matter, using the active force of chemical bond, most
The mineral composition reached eventually in pitch is dispersed in pitch with superfine uniform particle sizes, and is not reunited and do not settled.Not only solve
The stability problem that finished product cementitious matter must is fulfilled for, and pitch still has excellent ductility.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of processing technology and formula of bitumen finished product cementitious matter, comprise the following steps：
1）Bitumen is crushed to the bitumen powder obtained after 300 mesh, by it with containing the organic of surfactant
Dispersant is with 5:1—1:1 ratio is uniformly mixed in a kettle, using special grinder, obtain granularity for 6000 mesh and with
On micro nano structure mixture；
2）By step 1）Micro nano structure mixture be heated to 160-170 DEG C after, the road with being heated to 120-150 DEG C
Asphalt is according to 1:100--10:1 ratio is mixed into agitator tank, is uniformly mixed；
3）In step 2）Product in add plasticizer, 1 ‰ -10 ‰ stabilizer of 1%-10%, and at 130-165 DEG C
At a temperature of stirring development, reaction 2 it is small when more than, obtain needle penetration 20-120（25 DEG C, 100g, 0.1mm）Pitch finished product.
The bitumen is the mixture of lake asphalt, one kind in rock asphalt and its arbitrary proportion, in bitumen
Bitumen content is more than 10%, and moisture content is less than 2%.
The organic dispersing agent containing surfactant is one kind in slurry oil, rubber oil, maltha and its any
The mixture of ratio, the flash-point of organic dispersing agent are more than 230 DEG C, and 163 DEG C of volatile quantity is not more than 1%.
The plasticizer is furfural extract oil, dioctyl phthalate, phthalic acid two (2- ethyl hexyls) ester one
The mixture of kind and its arbitrary proportion, the flash-point of plasticizer are more than 230 DEG C, and 163 DEG C of volatile quantity is not more than 0.8%.
The stabilizer is sulphur or organic compounds containing sulfur.
The bitumen particle for being crushed to 300 mesh：0.3mm sieve apertures percent of pass 100%, 0.15mm sieve aperture percent of pass
80%-90%, below 0.075mm particle percent of pass 55%-60%.
6000 mesh and the micro nano structure mixture of the above, refer to the micro- of trichloro ethylene insoluble matter in the mixture
Grain particle diameter reaches micro nano structure particles more than 6000 mesh and 6000 mesh, its micro-nano particle size distribution range is received for 100-5000
Rice.
The bi tumenf orr oad is by petroleum cracking or the pitch that is modulated into of cracking component, using meeting JTG
F40《Standard specification for construction and acceptance of highway asphalt pavement》One kind in 50A, 70A, 90A, 110A bi tumenf orr oad of middle requirement and with
On.
The surfactant is mainly silane or polyether surfactant and aluminium zirconate surfactant
Mixture, mixed proportion 10:0-0:10, dosage is the 0.2-1% of bitumen weight.
The beneficial effects of the invention are as follows
It is contemplated that pass through physics and chemical stabilization technology so that the mineral composition in bitumen is with 100-5000
The particle diameter of nm, it is uniform and stable to be dispersed in pitch.On the one hand according to Stokes' law, the grain diameter in liquid reduces, and sinks
Reduction of speed degree reduces, therefore the present invention reduces the particle diameter of mineral particle using grinding means.On the other hand the surfaces such as silane are combined
Activating agent and plasticizer, the effect of stabilizer, while reducing the surface tension of particulate matter, using the active force of chemical bond,
The mineral composition being finally reached in pitch is dispersed in pitch with superfine uniform particle sizes, and is not reunited and do not settled.Not only solve
Determine the stability problem that finished product cementitious matter must is fulfilled for, and pitch still has excellent ductility（Even in natural
Ductility still shows excellent when asphalt content reaches 40%）, with 25 DEG C of needle penetration 60-120 of technique preparation（0.1mm）Pitch
15 DEG C of ductilities more than 100cm.
Embodiment
The content of the invention is described further with embodiment below, because can be obtained more by the change of formula rate
The road asphalt of model, therefore protection scope of the present invention is limited containing embodiment but from embodiment.
Embodiment 1
By the rock asphalt of bitumen content 23%, the bitumen powder of about 300 mesh of particle diameter is obtained by broken, is examined by sieving
Look into, it meets particle diameter and meets 0.3mm sieve apertures percent of pass 100%, 0.15mm sieve aperture percent of pass 80%-90%, below 0.075mm particles
The requirement of percent of pass 55%-60%, by the slurry oil of bitumen powder and the surfactant containing bitumen powder weight 1% according to
3:1 ratio is uniformly mixed in a kettle, and slurry oil temperature is heated to 160 DEG C, and the surfactant is preferably alkoxy
The mixture of one type of silane and polyether surfactant, its ratio be 10:1.By said mixture it is polished obtain it is scattered equal
8000 even mesh micro nano structure mixtures, by the micro nano structure mixture and 90# bi tumenf orr oads according to 1:2 ratio
Example is uniformly mixed, and adds 5% furfural extract oil, after stirring half an hour, adds 3 ‰ sulphur stabilizer, it is small to continue stirring 3
When, you can finished pot is squeezed into, gained pitch is needle penetration scope 80-100（25 DEG C, 100g, 0.1mm）No. 90 pitch P80/
100.Its Indexs measure result is as follows：
Embodiment 2
The lake asphalt of bitumen content 52% is obtained into the bitumen powder of about 300 mesh of particle diameter by crushing, screened inspection,
It meets 0.3mm sieve apertures percent of pass 100%, 0.15mm sieve aperture percent of pass 80%-90%, below 0.075mm particle percent of pass 55%-
60% Particle size requirements, bitumen powder is with rubber oil according to 5:1 ratio is uniformly mixed in a kettle, is contained in rubber oil
The warp of bitumen powder weight 0.8% is preferably 10:1 aluminum alkoxide zirconate and the mixture of polyether surfactant
Surfactant.This mixture is heated with stirring to 160 DEG C, it is polished obtain finely dispersed 165 DEG C 6000 mesh it is micro-
Nanostructured mixture, by the micro nano structure mixture and 70# pitches according to 1:1 ratio is uniformly mixed, and adds 3%
Furfural extract oil:Dioctyl phthalate=8:1 mixture, after stirring half an hour, adds 2 ‰ sulphur stabilizer, after
When continuous stirring 3 is small, you can squeeze into finished pot, gained pitch is needle penetration scope 60-80（25 DEG C, 100g, 0.1mm）No. 70 drip
Blue or green P60/80.
Embodiment 3
The lake asphalt of bitumen content 52% is obtained into the bitumen powder of about 300 mesh of particle diameter by crushing, screened inspection,
It meets 0.3mm sieve apertures percent of pass 100%, 0.15mm sieve aperture percent of pass 80%-90%, below 0.075mm particle percent of pass 55%-
60% Particle size requirements, by the bitumen powder of 300 mesh and maltha according to 2:1 ratio is uniformly mixed in a kettle, soft drip
Blue or green temperature is heated to 160 DEG C, and the warp containing bitumen weight 1% in maltha is preferably 10:1 alkoxyorganosilicon class
With the surfactant of the mixture of polyether surfactant, the finely dispersed micro-nano knot of 6000 mesh is obtained after colloid mill
Structure mixture, by the micro nano structure mixture and 90# pitches according to 1:1 ratio is uniformly mixed, and the furfural for adding 2% is taken out
It is fuel-displaced:Phthalic acid two (2- ethyl hexyls) ester=9:1 mixture, after stirring half an hour, adds 1% sulphur stabilizer,
Continue stirring 4 it is small when, you can squeeze into finished pot, gained pitch is needle penetration scope 100-120（25 DEG C, 100g, 0.1mm）'s
No. 110 pitch P100/120.
Using gained bitumen road asphalt P80/100 products, AC-16 asphalts are configured, it is real according to Marshall
After proved recipe method determines the optimum oil-stone ratio of mixture, it is as shown in the table to measure its pavement performance：
Meet Chinese transportation Department of Transportation JTG F40- using P80/100, P60/80, P100/120 pitch obtained by the present invention
2004 regulation, and using AC16 asphalts made of P80/100 pitches, high-temperature behavior is excellent, and stability is than conventional
Asphalt is high, and cryogenic property, water resistant damage ability have exceeded the requirement of Chinese transportation Department of Transportation JTG F40-2004.
Claims (9)
1. a kind of processing technology of bitumen finished product cementitious matter, it is characterised in that comprise the following steps：
1）Bitumen is crushed to the bitumen powder obtained after 300 mesh, by its with it is organic scattered containing surfactant
Agent is with 5:1—1:1 ratio is uniformly mixed in a kettle, and using special grinder, it is 6000 mesh and the above to obtain granularity
Micro nano structure mixture；
2）By step 1）Micro nano structure mixture be heated to 160-170 DEG C after, the road oil with being heated to 120-150 DEG C
Pitch is according to 1:100--10:1 ratio is mixed into agitator tank, is uniformly mixed；
3）In step 2）Product in add plasticizer, 1 ‰ -10 ‰ stabilizer of 1%-10%, and in 130-165 DEG C of temperature
More than when lower stirring development, reaction 2 are small, the natural drip that the needle penetration under conditions of 25 DEG C, 100g, 0.1mm is 20-120 is obtained
Blue or green finished product cementitious matter.
A kind of 2. processing technology of bitumen finished product cementitious matter according to claim 1, it is characterised in that the day
Right pitch is lake asphalt, one kind in rock asphalt or wherein any several mixture, bitumen Asphalt Content are more than
10%, moisture content is less than 2%.
3. the processing technology of a kind of bitumen finished product cementitious matter according to claim 1, it is characterised in that described contains
The organic dispersing agent for having surfactant is one kind or wherein any several mixture in slurry oil, rubber oil, maltha, is had
The flash-point of machine dispersant is more than 230 DEG C, and 163 DEG C of volatile quantity is not more than 1%.
A kind of 4. processing technology of bitumen finished product cementitious matter according to claim 1, it is characterised in that the increasing
Modeling agent is that furfural extract oil, dioctyl phthalate, phthalic acid two (2- ethyl hexyls) ester be a kind of and its arbitrary proportion
Mixture, the flash-point of plasticizer are more than 230 DEG C, and 163 DEG C of volatile quantity is not more than 0.8%.
5. the processing technology of a kind of bitumen finished product cementitious matter according to claim 1, it is characterised in that described is steady
It is sulphur or organic compounds containing sulfur to determine agent.
A kind of 6. processing technology of bitumen finished product cementitious matter according to claim 1, it is characterised in that the powder
It is broken to the bitumen particle of 300 mesh：0.3mm sieve apertures percent of pass 100%, 0.15mm sieve aperture percent of pass 80%-90%, 0.075mm with
Lower particle percent of pass 55%-60%.
7. the processing technology of a kind of bitumen finished product cementitious matter according to claim 1, it is characterised in that described
The micro nano structure mixture of 6000 mesh and the above, refers to that the diameter of particle of trichloro ethylene insoluble matter in the mixture reaches 6000
Micro nano structure particle more than mesh and 6000 mesh, its micro-nano particle size distribution range are 100-5000 nanometers.
A kind of 8. processing technology of bitumen finished product cementitious matter according to claim 1, it is characterised in that the road
Road asphalt is by petroleum cracking or the pitch that is modulated into of cracking component, using meeting JTG F40《Asphalt highway is applied
Work technical specification》It is one or more of in 50A, 70A, 90A, 110A bi tumenf orr oad of middle requirement.
A kind of 9. processing technology of bitumen finished product cementitious matter according to claim 1, it is characterised in that the table
Face activating agent is mainly the mixture of silane or polyether surfactant and aluminium zirconate surfactant, and mixed proportion is
10:0-0:10, dosage is the 0.2-1% of bitumen weight.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107739521A (en) * | 2017-11-16 | 2018-02-27 | 西咸新区众力沥青有限公司 | A kind of pouring asphalt compound finished product cementitious matter and preparation method thereof |
| CN110951270A (en) * | 2019-08-19 | 2020-04-03 | 湖北正康天然沥青科技有限公司 | Process for improving freezing resistance of rock asphalt mortar by adding aromatic hydrocarbon |
| CN110484008A (en) * | 2019-08-29 | 2019-11-22 | 中海沥青股份有限公司 | A method of improving ductility after No. 50 petroleum road asphalts dry |
| CN113444373B (en) * | 2021-06-03 | 2023-01-24 | 李威风 | Composition for modifying asphalt, modified asphalt, method for producing same, and asphalt mixture |
| CN117025168B (en) * | 2023-10-10 | 2024-01-16 | 山西中科鹏宇建筑科技有限公司 | Powdered natural asphalt-based hot-melt joint grouting adhesive, preparation method and application thereof |
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| CN1590463A (en) * | 2003-09-03 | 2005-03-09 | 青川中能信天然沥青矿开发有限公司 | Rood asphalt modifier and its preparation method |
| CN1733869A (en) * | 2004-08-11 | 2006-02-15 | 青川中能信天然沥青矿开发有限公司 | Use of Qingchuan natural asphalt mining product in paving petroleum asphalt pavement |
| CN103497521A (en) * | 2013-09-18 | 2014-01-08 | 交通运输部公路科学研究所 | Vegetable oil modified asphalt composite and preparation method thereof |
| CN104559262A (en) * | 2015-01-14 | 2015-04-29 | 长安大学 | Energy-saving environment-friendly asphalt and preparation method thereof |
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2017
- 2017-05-25 CN CN201710379909.6A patent/CN107057386B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590463A (en) * | 2003-09-03 | 2005-03-09 | 青川中能信天然沥青矿开发有限公司 | Rood asphalt modifier and its preparation method |
| CN1733869A (en) * | 2004-08-11 | 2006-02-15 | 青川中能信天然沥青矿开发有限公司 | Use of Qingchuan natural asphalt mining product in paving petroleum asphalt pavement |
| CN103497521A (en) * | 2013-09-18 | 2014-01-08 | 交通运输部公路科学研究所 | Vegetable oil modified asphalt composite and preparation method thereof |
| CN104559262A (en) * | 2015-01-14 | 2015-04-29 | 长安大学 | Energy-saving environment-friendly asphalt and preparation method thereof |
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Inventor after: Zeng Bin Inventor after: Zhang Bin Inventor after: Zhang Junbo Inventor after: Zhang Ling Inventor after: Zhang Qiaoning Inventor after: Zhang Xiaohong Inventor after: Han Xiaodong Inventor after: Li Li Inventor before: Zeng Bin Inventor before: Zhang Qingxin Inventor before: Zhang Bin Inventor before: Zhang Junbo Inventor before: Zhang Ling Inventor before: Zhang Xiaohong Inventor before: Han Xiaodong |
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