CN106927731A - A kind of morning strong high-durability cold recycled asphalt mixture and preparation method thereof - Google Patents
A kind of morning strong high-durability cold recycled asphalt mixture and preparation method thereof Download PDFInfo
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- CN106927731A CN106927731A CN201710130041.6A CN201710130041A CN106927731A CN 106927731 A CN106927731 A CN 106927731A CN 201710130041 A CN201710130041 A CN 201710130041A CN 106927731 A CN106927731 A CN 106927731A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
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Abstract
The present invention relates to a kind of strong high-durability cold recycled asphalt mixture of morning, it includes that aromatic naphtha, RAP reclaim mineral aggregate, filler, water, emulsified asphalt, cement, particularly, the compound also includes fiber, counted as 100% percentage by weight with RAP salvage materials and filler sum, aromatic naphtha percentage by weight volume is 0.1%~1.2%, and fiber weight percentage volume is 0.1%~0.6%.The early-strength more common cold recycled asphalt mixture of high-durability cold recycled asphalt mixture has more excellent durability index and early strength, with the property indices for meeting cold plant-mixed regenerated asphalt compound requirement, and preparation process is simple is easy to operate, large-scale promotion can be carried out.
Description
Technical field
The invention belongs to pavement material regeneration field, and in particular to a kind of Cold Recycled Mixture with Emulsified Asphalt and its system
Preparation Method.
Background technology
In the prior art, Cold Recycled Mixture with Emulsified Asphalt typically (is reclaimed road surface to drip by emulsified asphalt, RAP salvage materials
Green material), cement, the normal temperature such as filler mixes and stirs prepared, is the cold recycled asphalt for obtaining maximum dry density during mix-design
Compound is, it is necessary to outside emulsified asphalt is added, mix a certain proportion of Free water, cold regeneration mix moisture content is dripped by emulsification
The Free water for combining water in green grass or young crops and being additionally incorporated is together decided on, and the intensity of cold regeneration mix is closely related with its moisture content, with
Emulsified asphalt demulsification, moisture evaporation, cold regeneration mix intensity gradually strengthens, therefore, the early strength of cold regeneration mix
There is correlation with conditioned time, to shorten conditioned time, 0.5~2% cement is usually mixed, general principle is by cement
Hydration, improve cold regeneration mix early strength, but by mix cement improve cold regeneration mix early stage it is strong
Degree has limitation, on the one hand, cement mixing content is too high to cause compound anti-shear ability not enough, for anti-shear performance demand
Section higher is not suitable for；On the other hand, the raising of cold regeneration mix early strength is realized by mixing cement, due to cement
The reasons such as volume, improve limitation, and the current cold regeneration mix conditioned time for mixing cement is up to 7~8 days, it is impossible to conscientiously
Solve the problems, such as that cold regeneration mix conditioned time is more long, conditioned time is long to be unfavorable for promoting the use of for this technology.
In addition, according to investigation, the phenomenon of current cold regeneration mix generally existing poor durability, emulsified asphalt cold renewal is mixed
The durability for closing material is closely related with its voidage, bitumen content etc., due to the voidage model of Cold Recycled Mixture with Emulsified Asphalt
It is 8~12% to enclose, and under the voidage scope, easily produces power water pressure, and cold regeneration mix durability is caused damage, because
This, the congenital durability of cold recycled asphalt mixture is not enough.To improve its durability, a certain proportion of regenerative agent is usually mixed, led to
The effect of regenerative agent and pitch in RAP salvage materials is crossed, improves the degree of aging of aged asphalt, mixed so as to play raising cold renewal
Close the effect of material durability.For example：Chinese patent discloses CN103254652A and discloses one kind aromatic naphtha as regenerative agent pair
The method that waste asphalt mixture carries out cold renewal, wherein using aromatic naphtha as regenerative agent, acquisition voidage is lower, globality
With the more preferable cold recycled asphalt mixture of durability；But research finds that aromatic naphtha volume is too high to cause cold renewal to mix simultaneously
Expect the decline of bulk strength, its volume is unsuitable too high, it is 0.1~1% to recommend volume scope, therefore, it is simple to be changed using aromatic naphtha
The limitation of kind cold regeneration mix durability.Chinese patent discloses the A of CN 102174267 and discloses a kind of bitumen regenerant
And preparation method thereof, it is disclosed that by machine oil, naphthenic oil, aromatic naphtha, furfural oil any one or more, age resistor is ultraviolet
The asphalt cold recycling agent of light absorbers, reinforcing agent and reinforcement curing agent composition, by first preparing asphalt cold recycling agent, according still further to
It is 1%~2% addition asphalt cold recycling agent with waste asphalt weight concrete ratio, can obtain that adhesion strength is high, high-temperature behavior is good,
The excellent asphalt-regenerating mixture of crack resistance at low-temperature, its actual life was up to 8 years；But it is new without adding in this technology
Pitch, the bitumen aggregate ratio of asphalt-regenerating mixture determines by the bitumen aggregate ratio of reclaimed asphalt pavement, and a small amount of bitumen regenerant is mixed
Enter, the ageing of asphalt degree in reclaimed asphalt pavement is simply improved to a certain extent, aging improvement is mixed and stirred degree, mixed
With the multiple factors shadow such as time, uniform mixing, reclaimed asphalt pavement degree of aging, reclaimed asphalt pavement degree of crushing
Ring, difficulty of construction is high, and technique effect stability is poor, and the inapplicable section with bitumen aggregate ratio high requirement uses, meanwhile, this skill
, using petrochemical industry tailings such as machine oil, furfural oil as raw material, raw material variability is big, it is impossible to precise control for art, causes drip
The problem of blue or green regenerative agent stability difference, to sum up, this technology is not suitable for large-scale promotion.
The content of the invention
The technical problems to be solved by the invention overcome the deficiencies in the prior art, there is provided a kind of morning of suitable large-scale promotion
The good Cold Recycled Mixture with Emulsified Asphalt of strong high-durability.
The present invention also provides a kind of preparation method of the good Cold Recycled Mixture with Emulsified Asphalt of strong high-durability of morning simultaneously.
To solve above technical problem, a kind of technical scheme that the present invention takes is as follows：
A kind of morning strong high-durability cold recycled asphalt mixture, it includes that aromatic naphtha, RAP reclaim mineral aggregate, filler, water, breast
Change pitch, cement, particularly, the compound also includes fiber, is 100% weight hundred with RAP salvage materials and filler sum
Divide than meter, aromatic naphtha percentage by weight volume is 0.1%~1.2%, fiber weight percentage volume is 0.1%~0.6%.
Further, counted as 100% percentage by weight with RAP salvage materials and filler sum, the weight hundred of the cement
It is 0.5%~2%, preferably 1%-1.5% to divide than volume.
Preferably, the aromatic naphtha, meets when method is analysed using Group Component：Aromatic hydrocarbons CA mass contents scope 15%~
25%, cycloalkane CN mass contents scope is 25%~35%, and paraffin hydrocarbon CP mass contents scope is 40%~55%, rubber oil
135 DEG C of brookfield viscosities are less than 1.0Pa.s.
The fiber can be polymer fibers and/or mineral fibres, be specifically as follows be selected from polyester fiber,
One or more in polyacrylonitrile fibre, basalt fibre of combination.
A specific aspect of the invention, the fiber is polymer fibers, and with RAP salvage materials and is filled out
Material sum is 100% percentage by weight meter, and the percentage by weight of fiber is 0.1%~0.4%.
Another specific aspect of the invention, the fiber is mineral fibres, and with RAP salvage materials and filler sum
It is 100% percentage by weight meter, fiber weight percentage is preferably 0.2%~0.6%.
According to the present invention, the length of the fiber is generally≤4.5mm, a diameter of 0.010~0.025mm, tensile strength
>=500Mpa, moisture content≤3%, fibre length is preferably 1~4.5cm, more preferably 2~4mm.
Preferably, compound of the present invention is made by the steps and obtains：First by outside RAP salvage materials, filler and cement
Mix the common dry mixing of agent；Water, fiber are subsequently adding, wet-mixing is eventually adding emulsified asphalt and 45 DEG C~65 DEG C of aromatic naphtha, mixes and stirs i.e.
.
The present invention also provides a kind of present invention the preparation method of early strong high-durability cold recycled asphalt mixture, and it includes elder generation
By RAP salvage materials, filler and the common 50~70s of dry mixing of cement outer-penetrating agent；It is subsequently adding water, fiber, 50~70s of wet-mixing, most
Emulsified asphalt and 45 DEG C~65 DEG C of aromatic naphtha are added afterwards, are mixed and stirred 80~100s and are obtained final product.
Due to taking above technical scheme, the present invention to have the following advantages that compared with prior art：
The early-strength more common cold recycled asphalt mixture of high-durability cold recycled asphalt mixture has more excellent
Durability index and early strength, with the property indices for meeting cold plant-mixed regenerated asphalt compound requirement, and prepare work
Skill is simple to operation, can carry out large-scale promotion.
Specific embodiment
Although bad for the early strong not high and durability of early strong cold recycled asphalt mixture in the prior art or can be with
Realize preferable durability but there is the deficiency that qualitative variability is big, be difficult the limitations such as large-scale promotion, present invention innovation is using virtue
Hydrocarbon ils and fiber composite mix cold recycled asphalt mixture, and it is next to introduce the conventional Group Component analysis method of petrochemical industry simultaneously
The quality of aromatic naphtha raw material is controlled, and develops the preparation technology of suitable this kind of Novel cold regeneration asphalt, success
Prepare a kind of morning for being suitable to large-scale promotion strong high-durability cold recycled asphalt mixture.Experiment is confirmed：It is early-strength
The more common cold recycled asphalt mixture of high-durability cold recycled asphalt mixture has more excellent durability index and early strength,
With the property indices for meeting cold plant-mixed regenerated asphalt compound requirement, and preparation process is simple is easy to operate, can carry out big
Scale is promoted.
Morning strong high-durability cold recycled asphalt mixture of the invention reclaims mineral aggregate, fills out by aromatic naphtha, fiber, RAP
Material, water, emulsified asphalt, cement are mixed and stirred and prepared.Wherein when with RAP salvage materials and filler sum be 100% weight percent
Than timing, aromatic naphtha percentage by weight volume is 0.1%~1.2%, and fiber weight percentage volume is 0.1%~0.6%, water
Mud percentage by weight volume is for about such as 0.5%~2%, preferably 1%-1.5%.
According to the present invention, the aromatic naphtha should meet when method is analysed using Group Component：Aromatic hydrocarbons CA mass content scopes exist
15%~25%, cycloalkane CN mass contents scope is 25%~35%, and paraffin hydrocarbon CP mass contents scope is 40%~55%,
135 DEG C of brookfield viscosities of rubber oil are less than 1.0Pa.s, and color is usually light green color.
According to the present invention, the fiber can be polymer fibers and/or mineral fibres, polymer fibers bag
Polyester fiber (PES), polyacrylonitrile fibre (PAN) etc. are included but are not limited to, mineral fibres refers mainly to basalt fibre, when using poly-
During compound chemical fibre, fiber weight percentage is preferably 0.1%~0.4%, when using mineral fibres, fibre weight percentage
Than being preferably 0.2%~0.6%, the selection of concrete fiber is all defined as major premise with meet related specifications.
According to the present invention, the fiber is preferably 1~4.5cm, more preferably 2~4mm.
According to the present invention, cement is not particularly limited, and can use Portland cement.Emulsified asphalt preferably uses plantmix
Cold renewal special-purpose emulsifying pitch, its property indices meet national sector standard《Asphalt highway regeneration techniques specification》
The quality requirement of (JTG F41-2008).
Preferably, comprising the following steps that for this kind of new morning strong high-durability cold recycled asphalt mixture is prepared：
(1) load weighted RAP salvage materials, filler and the common dry mixing of cement outer-penetrating agent be for a period of time；
(2) water, fiber are added, wet-mixing is for a period of time；
(3) emulsified asphalt and aromatic naphtha are added, a period of time is mixed and stirred, is prepared and is completed.
Wherein, duration of mixing is respectively at least 10s (second), preferably at least 20s in step (1), (2) and (3), more preferably extremely
Few 30s, still more preferably further preferably at least 40s, most preferably at least at least 50s, 60s.At one of the invention
In specific embodiment, dry mixing and wet-mixing time are respectively 50~70s in step (1), (2)；Duration of mixing is preferred in step (3)
For about more than 80s, preferably at least 90s.In another specific embodiment of the invention, duration of mixing is in step (3)
80s~100s.
Preferably, additional water is calculated according to optimum moisture content (OWC) in step (2).According to optimum emulsification in step (3)
Asphalt content (OEC) adds emulsified asphalt, and this belongs to common sense in the field content, is not repeated herein.
Preferably, the addition temperature range of aromatic naphtha is 45 DEG C~65 DEG C, more preferably 48 DEG C -55 in step (3)
DEG C, most preferably about 50 DEG C.
According to the present invention, in prescription of mixed materials, the selection of not specified content such as filler and ratio etc. can be joined
According to《Asphalt highway regeneration techniques specification》The requirement of (JTG F41-2008) determines with domestic cold regeneration mix specification.
Below in conjunction with specific embodiment, the present invention will be further described in detail, but the invention is not restricted to following implementation
Example.Unless otherwise indicated, the percentage that content is represented herein is weight or mass percent.Unreceipted experiment condition is normal
The experiment condition of rule.
In following examples：
1. raw material selection
RAP salvage materials：Certain highway surface layer waste asphalt mixture, advises according to specification, it is broken after be divided into 0~
5mm, 5~15mm and 15~30mm third gear, matching somebody with somebody according to domestic cold regeneration mix specification recommended stage after screening carries out gradation design,
Cement mixing content is defined as level with mineral aggregate quality 1.5%.
Emulsified asphalt：The cold renewal special-purpose emulsifying pitch produced using Solvay companies, its performance indications meet national row
The requirements of industry standard, wherein emulsified asphalt solid content are 62%.
Fiber：The polyester fiber (pencil monofilament polyester resin) produced using Jiangsu Polymer Company, its indices
Meet the relevant regulations of national standard, length is 2~4.5mm, a diameter of 0.010~0.025mm, tensile strength >=500Mpa,
Moisture content≤3%.
Aromatic naphtha：Wujiang oil plant production, Group Component analyses arene content CA=20.78%, and cycloalkane CN contents are
32.2%, paraffin hydrocarbon CP content are 47.02%, and 135 DEG C of brookfield viscosities of rubber oil are 0.8Pa.s, and color is light green color.
2. material mixture ratio
Gradation design the results are shown in Table 1, and comparative example is set as filling the common cold recycled asphalt mixture of emulsified asphalt and water,
According to highway geotechnique's test method, determine that the optimum moisture content of comparative example cold regeneration mix is 3.4%, emulsified asphalt volume is
3.0%, embodiment 1~3, comparative example 2 substitute part Free water using aromatic naphtha, keep the liquid in cold recycled asphalt mixture
(aromatic naphtha and water) volume is constant, changes fibers content, and comparative example 3 mixes fibre on the basis of common cold recycled asphalt mixture
Dimension, is specifically shown in Table 2.
The gradation design result of table 1
The component volume such as fiber and aromatic naphtha in the embodiment of table 2 and comparative example compound
3. material production and preparation
Compound is produced：According to following technique prepared by the comparative example of above-mentioned table 2 and embodiment material mixture ratio into cold renewal to mix
Material is closed, i.e.,：RAP salvage materials, filler and cement outer-penetrating agent the elder generation dry mixing 60s in mix pot, after adding fiber, Free water afterwards,
Wet-mixing 60s, adds emulsified asphalt and aromatic naphtha (being heated to 50 DEG C of additions), mixes and stirs 90s, prepares and completes.
Test material preparation：Above-mentioned compound production stage is repeated in laboratory, and the cold recycled asphalt mixture of preparation is pressed
According to《Asphalt highway regeneration techniques specification》(JTG F41-2008) prepares marshal piece, specially：Hit using Marshall
Real instrument, it is two-sided respectively hit real 100 times after, be put into more than 60 DEG C of baking oven health 40h, it is two-sided again immediately after being taken out from baking oven respectively to hit
It is real 50 times, real completion is hit, normal temperature laboratory places more than 12h, and the demoulding is prepared and completed.
4. performance characterization
According to《Highway engineering pitch and Asphalt Mixture Experiment code》(JTG E20-2011), each example horse to preparing has a rest
You carry out performance characterization by test specimen, the results are shown in Table 3.
The mixture performance characterization result of table 3
There is no the evaluation method and index of Cold Recycled Mixture with Emulsified Asphalt early strength in current national regulation, according to breast
Change cold asphalt rehabilitation Strength Forming Mechanism, foreign evaluation method (is advised using cohesion test with reference to ASTMD1560-81
Model) and each example cold regeneration mix surface is tested in abrasion test (with reference to ASTM D7196-06 specifications) respectively and the glutinous of inside gathers
Power early formation situation, using rotary compactor molded test test specimen, sample dimensions are：Diameter × height=φ 150mm × 75
~80mm, according to construction seasons and construction weather conditions, according to least favorable execution conditions, it is 20 that climatic chamber sets temperature
DEG C, humidity is 80%, and conditioned time is 4h.Mix surface cohesion forms situation, characterizes exploitation traffic events earliest；It is internal
Cohesion situation, characterizes the formation degree of compound globality and being basically completed for chemical coagulation effect.Each example regenerating mixture
Early strength evaluation result be shown in Table 4.
The compound early strength evaluation result of table 4
The result of the test of table 3 shows that the cold recycled asphalt mixture and comparative example mixed again using fiber and aromatic naphtha are commonly cold
Regenerating mixture, all with voidage index, 15 DEG C of cleavage strength indexs and the freeze-thaw split TSR indexs for meeting code requirement,
Show to be mixed again using fiber and aromatic naphtha and prepare cold regeneration mix there is feasibility；In addition, as aromatic naphtha volume increases from 0%
1% is added to, fibers content increases to 0.5% from 0%, the cold recycled asphalt mixture mixed again using fiber and aromatic naphtha, compared to right
The common cold regeneration mix of ratio, its 15 DEG C of cleavage strengths and freeze-thaw split strength ratio TSR indexs are obviously improved, and show aromatic hydrocarbons
The incorporation of oil and fiber improves the water stability and bulk strength of cold recycled asphalt mixture.
The result of the test of table 4 shows, compared with the cohesion and abrasion loss index of comparative example, while mixing aromatic naphtha and fibre
The embodiment cold regeneration mix of dimension has a cohesion index higher, lower abrasion loss, with reference to above to cohesion and
The inherent analysis of abrasion loss index, this shows, mixed in common cold recycled asphalt mixture a certain proportion of aromatic naphtha and
Fiber, can improve the early strength of compound and the Forming ability of early strength, and this is for shortening supporting for cold regeneration mix
The raw time, shorten the engineering time significant.
To sum up, the present invention mixes a certain proportion of aromatic naphtha and fiber in common cold regeneration mix, can both improve
The early strength of compound, shortens conditioned time, and the durability and bulk strength of compound can be improved again.
The present invention is described in detail above, its object is to allow the personage for being familiar with this art to will appreciate that this
The content of invention is simultaneously carried out, and it is not intended to limit the scope of the present invention, all Spirit Essence institutes of the invention
The equivalent change or modification of work, should all cover within the scope of the present invention.
Claims (10)
1. strong high-durability cold recycled asphalt mixture of a kind of morning, it includes that aromatic naphtha, RAP reclaim mineral aggregate, filler, water, emulsification
Pitch, cement, it is characterised in that：The compound also includes fiber, is 100% weight with RAP salvage materials and filler sum
Percentages, the aromatic naphtha percentage by weight volume be 0.1%~1.2%, fiber weight percentage volume be 0.1%~
0.6%.
2. morning according to claim 1 strong high-durability cold recycled asphalt mixture, it is characterised in that：Material is reclaimed with RAP
Material and filler sum are 100% percentage by weight meter, and the percentage by weight volume of the cement is 0.5%~2%.
3. morning according to claim 2 strong high-durability cold recycled asphalt mixture, it is characterised in that：Material is reclaimed with RAP
Material and filler sum are 100% percentage by weight meter, and the percentage by weight volume of the cement is 1%-1.5%.
4. morning according to claim 1 strong high-durability cold recycled asphalt mixture, it is characterised in that：The aromatic naphtha,
Meet when method is analysed using Group Component：Aromatic hydrocarbons CA mass contents scope is in 15%~25%, cycloalkane CN mass content scopes
It is 25%~35%, paraffin hydrocarbon CP mass contents scope is 40%~55%, and 135 DEG C of brookfield viscosities of rubber oil are less than 1.0Pa.s.
5. morning according to claim 1 strong high-durability cold recycled asphalt mixture, it is characterised in that：The fiber is poly-
Compound chemical fibre and/or mineral fibres.
6. morning according to claim 5 strong high-durability cold recycled asphalt mixture, it is characterised in that：The fiber is choosing
One or more in autohemagglutination ester fiber, polyacrylonitrile fibre, basalt fibre of combination.
7. morning according to claim 5 strong high-durability cold recycled asphalt mixture, it is characterised in that：The fiber is poly-
Compound chemical fibre, and counted as 100% percentage by weight with RAP salvage materials and filler sum, the percentage by weight of fiber is
0.1%~0.4%；Or, the fiber be mineral fibres, and with RAP salvage materials and filler sum be 100% weight percent
Than meter, fiber weight percentage is preferably 0.2%~0.6%.
8. the morning strong high-durability cold recycled asphalt mixture according to any one of claim 5 to 7 claim, it is special
Levy and be：Length≤the 4.5mm of the fiber, a diameter of 0.010~0.025mm, tensile strength >=500Mpa, moisture content≤
3%.
9. morning according to claim 1 strong high-durability cold recycled asphalt mixture, it is characterised in that：The compound leads to
Following steps are crossed to prepare：First by RAP salvage materials, filler and the common dry mixing of cement outer-penetrating agent；Water, fiber are subsequently adding,
Wet-mixing, is eventually adding emulsified asphalt and 45 DEG C~65 DEG C of aromatic naphtha, mixes and stirs and obtains final product.
10. a kind of early strong high-durability cold recycled asphalt mixture as described in any one of claim 1 to 9 claim
Preparation method, it is characterised in that：Methods described include first by RAP salvage materials, filler and the common dry mixing 50 of cement outer-penetrating agent~
70s；Water, fiber are subsequently adding, 50~70s of wet-mixing is eventually adding emulsified asphalt and 45 DEG C~65 DEG C of aromatic naphtha, mix and stir 80~
100s is obtained final product.
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| CN109001033A (en) * | 2018-07-05 | 2018-12-14 | 山东省交通规划设计院 | A method of based on uniaxial penetration test reclaimed asphalt mixture balanced design |
| CN111995338A (en) * | 2020-09-14 | 2020-11-27 | 郑州市路通公路建设有限公司 | Composite fiber emulsified asphalt mixture and preparation method thereof |
| CN113060977A (en) * | 2021-04-12 | 2021-07-02 | 扬州大学 | Super-thick recycled aggregate asphalt stabilized macadam base layer mixture and preparation method thereof |
| CN114591045A (en) * | 2022-03-09 | 2022-06-07 | 湖南省交通科学研究院有限公司 | Functional layer material of RAP fine aggregate fully-regenerated asphalt pavement and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001033A (en) * | 2018-07-05 | 2018-12-14 | 山东省交通规划设计院 | A method of based on uniaxial penetration test reclaimed asphalt mixture balanced design |
| CN109001033B (en) * | 2018-07-05 | 2021-10-26 | 山东省交通规划设计院集团有限公司 | Method for balanced design of regenerated asphalt mixture based on uniaxial penetration test |
| CN111995338A (en) * | 2020-09-14 | 2020-11-27 | 郑州市路通公路建设有限公司 | Composite fiber emulsified asphalt mixture and preparation method thereof |
| CN113060977A (en) * | 2021-04-12 | 2021-07-02 | 扬州大学 | Super-thick recycled aggregate asphalt stabilized macadam base layer mixture and preparation method thereof |
| CN114591045A (en) * | 2022-03-09 | 2022-06-07 | 湖南省交通科学研究院有限公司 | Functional layer material of RAP fine aggregate fully-regenerated asphalt pavement and preparation method thereof |
| CN114591045B (en) * | 2022-03-09 | 2022-09-16 | 湖南省交通科学研究院有限公司 | Functional layer material of RAP fine aggregate fully-regenerated asphalt pavement and preparation method thereof |
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