CN106746926A - Separate type plantmix warms the preparation method of reclaimed asphalt mixture - Google Patents
Separate type plantmix warms the preparation method of reclaimed asphalt mixture Download PDFInfo
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- CN106746926A CN106746926A CN201611144961.5A CN201611144961A CN106746926A CN 106746926 A CN106746926 A CN 106746926A CN 201611144961 A CN201611144961 A CN 201611144961A CN 106746926 A CN106746926 A CN 106746926A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
Asphalt material the present invention relates to be used for pavement engineering, and in particular to a kind of separate type plantmix warms the preparation method of reclaimed asphalt mixture.Comprise the following steps：（1）, detection reclaim the bitumen content of asphalt pavement material, aged asphalt performance and mineral aggregate gradation；（2）, determine to reclaim asphalt pavement material, newly gather materials, the content of limestone mineral powder, new pitch and regenerative agent；（3）, put into mix and stir and stir in advance in pot；（4）, addition regenerative agent；（5）, products therefrom takes the dish out of the pot（40~150）Developed under the conditions of DEG C；（6）, by heat it is new gather materials put into and mix and stir pot, add step（5）Product after the completion of middle development, stirring；（7）, new pitch and limestone mineral powder be added to step（6）Stirred in the product of gained, then take the dish out of the pot, be molded.Present invention process is simple, favorable regeneration effect, regenerative agent utilization rate is high, cost is relatively low, the comprehensive pavement performance of product is good.
Description
Technical field
Asphalt material the present invention relates to be used for pavement engineering, and in particular to a kind of separate type plantmix warm regeneration asphalt is mixed
Close the preparation method of material.
Background technology
Plant-mix heat recycle technology is the most commonly used asphalt pavement regeneration method in the world today, it is adaptable to various conditions
The regeneration of lower old asphalt concrete pavement, not only saves the raw material such as a large amount of pitches, sandstone, cost saving, it is to avoid
New resource consumption.Be conducive to treatment waste material, environmental protection simultaneously, thus with significant economic benefit and society, environment
Benefit.
The hot in-plant reclaimed technique of tradition, individually heating of typically first gathering materials by old asphalt mixture (abbreviation old material) and newly, so
Afterwards by old material with it is new gather materials mix in pot is mixed, then disposably new pitch (or new pitch and regenerative agent) is added to and mixes and stirs pot
In mix and stir, obtain reclaimed asphalt mixture finished product, be directly used in paving.It is known that in reclaimed asphalt mixture, only
New pitch (or new pitch and regenerative agent) forms continuous consistent after being interpenetrated with the aged asphalt in old material, exchanged and being merged
Cementitious matter, uniformly wraps up in invest and newly gathers materials and the excellent reclaimed asphalt mixture of form stable, pavement performance can be just obtained in old material.
However, the aged asphalt that traditional handicraft is not accounted in new pitch and old material reacts to each other, combining closely needs in specific temperature
Could sufficiently be completed under degree and time conditions, on the one hand cause newly to gather materials with old material by pitch in the regenerating mixture after mixing and stirring
Wrap up in attached degree to differ, the asphalt membrane that often newly gathers materials is thin, old material asphalt filmthickness, the lack of homogeneity of compound usually occurs larger
Particle diameter it is new gather materials mix and stir after still do not wrap up in attached pitch fully, and grey material phenomenon is presented；In another aspect new pitch and old material
Aged asphalt be attached on new and old gathering materials without merging uniform wrapping up in completely, cause aged asphalt pavement performance fully to be changed
It is apt to and lives again, two kinds of pitches each play primary characteristics in compound system, it is impossible to forms unified entirety.So as to have a strong impact on
The comprehensive pavement performance of reclaimed asphalt mixture, especially water stability, crack resistance at low-temperature and fatigue life etc. make with all
Compare to have with the asphalt of virgin material and decline by a relatively large margin.In addition, regenerative agent be directly added into it is new gather materials with after old material mixing
Product in, wherein many parts are newly gathered materials and being adsorbed, being absorbed, and the palingenesis to aged asphalt cannot be played, make
Into the effective rate of utilization reduction of regenerative agent, increase the cost of manufacture of reclaimed asphalt mixture.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of process is simple, favorable regeneration effect, regenerative agent utilization rate
Separate type plantmix high, cost is relatively low, comprehensive pavement performance is good warms the preparation method of reclaimed asphalt mixture.
Separate type plantmix of the invention warms the preparation method of reclaimed asphalt mixture, comprises the following steps：
(1) milling, is carried out to aged asphalt road surface to crush, and bitumen content, the aged asphalt performance of broken material are detected respectively
And mineral aggregate gradation；
(2) testing result and the ratio requirement of compound, according to step (1), select regenerative agent type, determine separate type
Recovery asphalt pavement material in plantmix's warm reclaimed asphalt mixture, newly gather materials, limestone mineral powder, new pitch and regenerative agent
Content；
(3), the recovery asphalt pavement material after heating is put into is mixed and stirred and stir in advance in pot；
(4), the regenerative agent after heating is weighed, is added to action of forced stirring in the product obtained by step (3)；
(5), step (4) products therefrom is taken the dish out of the pot, is stored in development storehouse, (0.5 is developed under the conditions of (40~150) DEG C
~6) h；
(6), by heat it is new gather materials weigh after put into and mix and stir pot, while add in pot hair in step (5) to mixing and stirring
Product after the completion of educating, stirring；
(7), load weighted new pitch and limestone mineral powder are added in the product obtained by step (6) and are stirred, then gone out
Pot, shaping.
Wherein：Separate type plantmix warm reclaimed asphalt mixture in reclaim asphalt pavement material, newly gather materials, limestone deposit
The mass percent of powder, new pitch and regenerative agent is：The recovery asphalt pavement material of (20~70) %, the new collection of (30~80) %
Material, the limestone mineral powder of (0~8) %, the new pitch of (0~5.0) %, the regenerative agent of (0~0.4) %, its gross mass meet
100%.
Heretofore described step (1) is the content that Bituminous concrete surface in the sample is determined using burning oven process, and sample is fired
After burning the old mineral aggregate of gained sieved, crush values and density test；Bituminous concrete surface and old is carried out to the sample using Abson method
Mineral aggregate extracting is separated, and detects needle penetration, softening point, ductility, the viscosity of gained Bituminous concrete surface after separation.
The kinematic viscosity of 60 DEG C of regenerative agent is (50~60000) mm in heretofore described step (2)2/ s,
The heating-up temperature that asphalt pavement material is reclaimed in heretofore described step (3) is (70~160) DEG C, when stirring in advance
Between be (5-10) s.
Regenerative agent heating-up temperature is (40~120) DEG C in heretofore described step (4), and regenerative agent viscosity is more high, regenerates
Agent heating-up temperature value is higher, and mixing time is (25~35) s；
Regenerative agent viscosity then developmental temperature value more high is higher in heretofore described step (5).
The new heating-up temperature gathered materials is (90-190) DEG C in heretofore described step (6), and mixing time is (10-15) s.
New pitch is bi tumenf orr oad AH-50, AH-70, AH-90, AH-110, AH- in heretofore described step (7)
One of 130, heating-up temperature is (60-170) DEG C, and the more low then heating-up temperature value of selected asphalt label is higher, mixing time
It is (30-40) s.
The present invention compared with the existing technology, with advantages below and beneficial effect：
The method of the present invention by regenerative agent be directly appended to reclaim asphalt pavement material in, be on the one hand conducive to regenerative agent with
Aged asphalt in old material is fully contacted, and can more carry out performance improvement to aged asphalt to the greatest extent and live again；The opposing party
Face avoid in conventional method by regenerative agent be added to it is new gather materials with old material so that a big chunk regenerative agent is newly gathered materials institute
Absorb, and reduce the effective rate of utilization of regenerative agent.
The method of the present invention increased the development technique of reclaimed asphalt mixture compared with traditional plant-mix heat recycle technology,
Greatly improve the chance for interpenetrating, merging and organically combining between new, Bituminous concrete surface so that new pitch and regenerative agent are being returned
Given full play in receipts asphalt pavement material (RAP) and lived again and reconstruction function, improve the regeneration effect of Bituminous concrete surface, formed
Reclaimed asphalt mixture pavement performance fully achieves the hot-mix asphalt mixture for all being produced with virgin material, and especially low temperature resists
Fragility, anti-water damage ability and fatigue life are significantly better than the reclaimed asphalt mixture using conventional art production.
In the method for the present invention development technique be the mix products that are formed to old material and regenerative agent specified temp and when
Between under the conditions of developed, it is to avoid old material, regenerative agent, new pitch and new the formed mix products of gathering materials are developed,
Such that it is able to save a large amount of energy consumptions and development storehouse.
The method of the present invention only increases the development work of reclaimed asphalt mixture compared with conventional plant-mix heat recycle technology
Skill, change mix and stir order, and the process is simple be easy to grasp.Plantmix's warm reclaimed asphalt mixture pavement performance of production is big
Width is improved, in can be directly used for each grade bitumen road surface, the making of cutting optimal and wearing course；Imitated with obvious economic and society
Benefit.
The method of the present invention have be easily achieved, aged asphalt and regenerative agent utilization rate are high, new pitch consumption is few, can be effective
Prevent appearance, regenerating mixture more uniform, high-temperature stability, crack resistance at low-temperature, the water resistant of grey material in regenerating mixture
The combination property such as infringement ability and fatigue life is greatly improved.
Specific embodiment
Embodiment 1
The embodiment of laboratory test：Experiment old asphalt pavement broken material (RAP) used is identical source same particle size specification
Material, RAP is sampled in batching plant first, then according to《Highway engineering pitch and Asphalt Mixture Experiment code》
The method of T 0735 carries out bitumen content experiment in (JTG E20-2011), and the bitumen aggregate ratio that experiment measures the RAP is 4.51%, right
The old mineral aggregate tested in the RAP for obtaining is sieved, and sieve test the results are shown in Table 1；Using《Highway engineering pitch and pitch mix
Material testing regulations》The method of T 0726 is stripped experiment to RAP in (JTG E20-2011), and the Bituminous concrete surface after extraction test enters
Row is reclaimed, and the detection that makes a service test, and testing result is shown in Table 2.
Old mineral aggregate gradation result of the test in the RAP of table 1
Bituminous concrete surface performance indications result of the test in the RAP of table 2
| 25 DEG C of needle penetration (0.1mm) | Softening point DEG C | 15 DEG C of ductility (cm) | 60 DEG C of (mm of viscosity2/s) |
| 21.6 | 63.6 | 24.9 | 1290*106 |
Newly gather materials and use basalt, this newly gathers materials comprising four groups of particle size components, and first group of particle diameter is 0-2.36mm；Second group
Particle diameter is 2.36-4.75mm；3rd group of particle diameter is 4.75-9.5mm；4th group of particle diameter is 9.5-16.0mm.Four groups are gathered materials into
Row sieve test, the results are shown in Table 3；Relative density test is carried out, 4. are the results are shown in Table
The new mineral aggregate sieve test result of table 3
The new mineral aggregate relative density test result of table 4
| Particle diameter | First group | Second group | 3rd group | 4th group |
| Bulk specific gravity | 2.810 | 2.853 | 2.871 | 2.885 |
| Apparent relative density | 2.943 | 2.961 | 2.953 | 2.960 |
Limestone mineral powder screening result is shown in Table 5, and density is 2.720
The miberal powder screening result of table 5
New pitch selects domestic AH-50 bi tumenf orr oads, and performance indications are shown in Table 6.
The AH-50 bi tumenf orr oad Testing index of table 6
From the TNZS-60000 type regenerative agents of Jiangsu Tian Nuo pavement materials Science and Technology Ltd. production, 60 DEG C are transported regenerative agent
Kinetic viscosity is 60000mm2/s。
Plantmix's warm reclaimed asphalt mixture uses continuous close-graded AC-13, according to《Asphalt highway construction technology is advised
Model》AC-13 formate gradation compositions area requirement in JTG F40-2004, to RAP, newly gather materials (four groups), limestone mineral powder carries out level and matches somebody with somebody
Synthesis, formate gradation composition the results are shown in Table 7.
The plantmix of table 7 warms reclaimed asphalt mixture AC-13 formate gradation compositions
The preparation method process chart of reclaimed asphalt mixture is warmed according to accompanying drawing separate type plantmix of the present invention, will be above-mentioned
RAP is mixed and stirred with new mineral aggregate, miberal powder, new pitch, regenerative agent, wherein, RAP and all kinds of new added material mass percents are：
47.3% RAP；20.2% first group of new mineral aggregate；9.5% second group of new mineral aggregate；4.3% the 3rd group of new mineral aggregate；
14.9% the 4th group of new mineral aggregate；0.9% miberal powder；2.69% new pitch；0.21% regenerative agent.
Above-mentioned RAP and new mineral aggregate, miberal powder, newly gather materials, regenerative agent is mixed according to separate type plantmix of the present invention warm regeneration asphalt
The preparation method for closing material is mixed and stirred, and step is as follows：
(1) RAP, is heated to 160 DEG C, is then put into and is mixed and stirred pre- stirring 10s in pot
(2) regenerative agent, is heated to 120 DEG C, is then put into mix and stir and is mixed and stirred with step (1) products therefrom in pot,
Mixing time is set as 30s.
(3), step (2) products therefrom is taken the dish out of the pot, 7 aliquots (Y0, Y1, Y2, Y3, Y4, Y5, Y6) are divided into, is stored
In 150 DEG C of special development storehouse, Y0 development 0.5h, Y1 development 1h, Y2 development 2h, Y3 development 3h, Y4 development 4h, Y5 developments
5h, Y6 develop 6h.
(4), new will gather materials and be heated to 190 DEG C, be put into after weighing in mixing and stirring pot, while add step in pot to mixing and stirring
(3) product in after the completion of development, stirs 15s.
(5) after, weighing heat to 170 DEG C of AH-50 bi tumenf orr oads and limestone mineral powder at room temperature, it is added to step
Suddenly in (4) products therefrom, 30s is stirred.
(6), 7 parts of different samples obtained by step (5) are taken the dish out of the pot at 170 DEG C, then shaping asphalt test specimen determines
Asphalt Mixture.
The every kind of sample obtained by the preparation method of reclaimed asphalt mixture, indoor shaping are warmed for above-mentioned separate type plantmix
High-temperature behavior (Marshall stability test, dynamic stability experiment), cryogenic property (low temperature bend test), water stability are carried out after test specimen
(experiment of Marshall residual stability, indirect tensile test on frozen-thaw) and fatigue life (four-point bending girder fatigue life test) are evaluated,
Testing result is shown in Table 8, table 9, table 10, table 11 respectively.
The separate type plantmix of table 8 warms reclaimed asphalt mixture high-temperature behavior testing result
Remarks：Y0, Y1, Y2, Y3, Y4, Y5, Y6 are that separate type plantmix warm reclaimed asphalt mixture is distinguished at 150 DEG C
Gained sample (similarly hereinafter) after development 0.5h, 1h, 2h, 3h, 4h, 5h, 6h；《Standard specification for construction and acceptance of highway asphalt pavement》JTG F40-
2004 (hereinafter referred to as specifications) require that Marshall stability is not less than 8KN, and dynamic stability is not less than 1000 times/mm.
The separate type plantmix of table 9 warms reclaimed asphalt mixture cryogenic property testing result
Remarks：- 10 DEG C of test temperature, code requirement is not less than 2300 μ ε.
The separate type plantmix of table 10 warms reclaimed asphalt mixture water stability testing result
Remarks：Code requirement Marshall residual stability ratio is not less than 75%, and freeze-thaw split strength ratio is not less than 70%.
The separate type plantmix of table 11 warms reclaimed asphalt mixture fatigue life testing result
Remarks：Test temperature is 15 DEG C, target strain is 600 μ ε, loading frequency is 10HZ, test end condition is
50%.
Embodiment 2
The present embodiment is essentially identical with above-described embodiment 1, and difference is：
(1), new pitch uses AH-130 bi tumenf orr oads, new pitch consumption to account for separate type plantmix warm in the present embodiment
The mass percent of reclaimed asphalt mixture is 2.74%；The production of regenerative agent selection Jiangsu Tian Nuo pavement materials Science and Technology Ltd.
TNZS-50 type regenerative agents, 60 DEG C of kinematic viscosity are 50mm2/ s, regenerant consumption accounts for separate type plantmix warm regeneration asphalt and mixes
The mass percent for closing material is 0.16%.
(2), RAP heating-up temperatures are 70 DEG C, and new aggregate heating temperature is 90 DEG C, and regenerative agent heating-up temperature is 40 DEG C.
(3) RAP for taking the dish out of the pot and regeneration agent composition, are divided into 7 aliquots (W0, W1, W2, W3, W4, W5, W6), are stored up
In the presence of in 40 DEG C of special development storehouse, W0 development 0.5h, W1 development 1h, W2 development 2h, W3 developments 3h, W4 develop 4h, W5 development
5h, W6 develop 6h.
(4), warm reclaimed asphalt mixture takes the dish out of the pot at 50 DEG C, shaping asphalt test specimen, determines compound road and uses
Performance.
The every kind of sample obtained by the preparation method of reclaimed asphalt mixture, indoor shaping are warmed for above-mentioned separate type plantmix
Carry out high-temperature behavior (Marshall stability test, dynamic stability experiment), cryogenic property (low temperature bend test), water stability respectively afterwards
(experiment of Marshall residual stability, indirect tensile test on frozen-thaw) and fatigue life (four-point bending girder fatigue life test) are evaluated,
Testing result is shown in Table 12, table 13, table 14, table 15 respectively.
The separate type plantmix of table 12 warms reclaimed asphalt mixture high-temperature behavior testing result
Remarks：W0, W1, W2, W3, W4, W5, W6 are that high-performance plantmix warm reclaimed asphalt mixture is sent out respectively at 40 DEG C
Educate gained sample (similarly hereinafter) after 0.5h, 1h, 2h, 3h, 4h, 5h, 6h；《Standard specification for construction and acceptance of highway asphalt pavement》JTG F40-
2004 (hereinafter referred to as specifications) require that Marshall stability is not less than 8KN, and dynamic stability is not less than 1000 times/mm.
The separate type plantmix of table 13 warms reclaimed asphalt mixture cryogenic property testing result
Remarks：- 10 DEG C of test temperature, code requirement is not less than 2300 μ ε.
The separate type plantmix of table 14 warms reclaimed asphalt mixture water stability testing result
Remarks：Code requirement Marshall residual stability ratio is not less than 75%, and freeze-thaw split strength ratio is not less than 70%.
The separate type plantmix of table 15 warms reclaimed asphalt mixture fatigue life testing result
Remarks：Test temperature is 15 DEG C, target strain is 600 μ ε, loading frequency is 10HZ, test end condition is
50%.
Embodiment 3
The present embodiment is essentially identical with above-described embodiment 1, and difference is：
(1), new pitch uses AH-70 bi tumenf orr oads, new pitch consumption to account for separate type plantmix warm in the present embodiment
The mass percent of reclaimed asphalt mixture is 2.65%；The production of regenerative agent selection Jiangsu Tian Nuo pavement materials Science and Technology Ltd.
TNZS-110001 type regenerative agents, 60 DEG C of kinematic viscosity are 11520mm2/ s, regenerant consumption accounts for warm reclaimed asphalt mixture
Mass percent be 0.25%.
(2), RAP heating-up temperatures are 120 DEG C, and new aggregate heating temperature is 170 DEG C, and regenerative agent heating-up temperature is 80 DEG C.
(3) RAP for taking the dish out of the pot and regeneration agent composition, are divided into 7 aliquots (X0, X1, X2, X3, X4, X5, X6), are stored up
In the presence of in 130 DEG C of special development storehouse, X0 development 0.5h, X1 development 1h, X2 development 2h, X3 developments 3h, X4 develop 4h, X5 development
5h, X6 develop 6h.
(4), warm reclaimed asphalt mixture takes the dish out of the pot at 150 DEG C, shaping asphalt test specimen, determines compound road and uses
Performance.
The every kind of sample obtained by the preparation method of reclaimed asphalt mixture, indoor shaping are warmed for above-mentioned separate type plantmix
Afterwards, high-temperature behavior (Marshall stability test, dynamic stability experiment), cryogenic property (low temperature bend test), water stabilization are carried out respectively
Property (Marshall residual stability experiment, indirect tensile test on frozen-thaw) and fatigue life (four-point bending girder fatigue life test) comment
Valency, testing result is shown in Table 16, table 17, table 18, table 19 respectively.
The separate type plantmix of table 16 warms reclaimed asphalt mixture high-temperature behavior testing result
Remarks：X0, X1, X2, X3, X4, X5, X6 are that separate type plantmix warm reclaimed asphalt mixture is distinguished at 130 DEG C
Gained sample (similarly hereinafter) after development 0.5h, 1h, 2h, 3h, 4h, 5h, 6h；《Standard specification for construction and acceptance of highway asphalt pavement》JTG F40-
2004 (hereinafter referred to as specifications) require that Marshall stability is not less than 8KN, and dynamic stability is not less than 1000 times/mm.
The separate type plantmix of table 17 warms reclaimed asphalt mixture cryogenic property testing result
Remarks：- 10 DEG C of test temperature, code requirement is not less than 2300 μ ε.
The separate type plantmix of table 18 warms reclaimed asphalt mixture water stability testing result
Remarks：Code requirement Marshall residual stability ratio is not less than 75%, and freeze-thaw split strength ratio is not less than 70%.
The separate type plantmix of table 19 warms reclaimed asphalt mixture fatigue life testing result
Remarks：Test temperature is 15 DEG C, target strain is 600 μ ε, loading frequency is 10HZ, test end condition is
50%.
Claims (9)
1. a kind of separate type plantmix warms the preparation method of reclaimed asphalt mixture, it is characterized in that：Comprise the following steps,
(1) milling, is carried out to aged asphalt road surface to crush, and bitumen content, aged asphalt performance and the ore deposit of broken material are detected respectively
Material level is matched somebody with somebody；
(2) testing result and the ratio requirement of compound, according to step (1), select regenerative agent type, determine separate type plantmix
Recovery asphalt pavement material in warm reclaimed asphalt mixture, newly gather materials, limestone mineral powder, new pitch and regenerative agent contain
Amount；
(3), the recovery asphalt pavement material after heating is put into is mixed and stirred and stir in advance in pot；
(4), the regenerative agent after heating is weighed, is added to action of forced stirring in the product obtained by step (3)；
(5), step (4) products therefrom is taken the dish out of the pot, is stored in development storehouse, (0.5~6) is developed under the conditions of (40~150) DEG C
h；
(6), by heat it is new gather materials weigh after put into and mix and stir pot, while developed in step (5) to be mixed and stirred add in pot
Product after, stirring；
(7), by load weighted new pitch and limestone mineral powder be added in the product obtained by step (6) stir, then take the dish out of the pot, into
Type.
2. separate type plantmix according to claim 1 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is former
Reclaimed in material asphalt pavement material, newly gather materials, the mass percent of limestone mineral powder, new pitch and regenerative agent is：(20~
70) the recovery asphalt pavement material of %, (30~80) % it is new gather materials, the limestone mineral powder of (0~8) %, (0~5.0) %
The regenerative agent of new pitch, (0~0.4) %, its gross mass meets 100%.
3. separate type plantmix according to claim 1 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
Step (1) is the content that Bituminous concrete surface in the sample is determined using burning oven process, and the old mineral aggregate obtained by after sample combustion is carried out
Screening, crush values and density test；Bituminous concrete surface is carried out to the sample using Abson method and the extracting of old mineral aggregate is separated, and detection point
From needle penetration, softening point, ductility, the viscosity of rear gained Bituminous concrete surface.
4. separate type plantmix according to claim 1 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
The kinematic viscosity of 60 DEG C of regenerative agent is (50~60000) mm in step (2)2/s。
5. separate type plantmix according to claim 1 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
The heating-up temperature that asphalt pavement material is reclaimed in step (3) is (70~160) DEG C, and pre- mixing time is (5-10) s.
6. separate type plantmix according to claim 4 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
Regenerative agent heating-up temperature is (40~120) DEG C in step (4), and regenerative agent viscosity then regenerative agent heating-up temperature value more high is higher,
Mixing time is (25~35) s；
7. separate type plantmix according to claim 4 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
Regenerative agent viscosity then developmental temperature value more high is higher in step (5).
8. separate type plantmix according to claim 1 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
The new heating-up temperature gathered materials is (90-190) DEG C in step (6), and mixing time is (10-15) s.
9. separate type plantmix according to claim 1 warms the preparation method of reclaimed asphalt mixture, it is characterized in that：It is described
New pitch is one of bi tumenf orr oad AH-50, AH-70, AH-90, AH-110, AH-130 in step (7), and heating-up temperature is
(60-170) DEG C, the more low then heating-up temperature value of selected asphalt label is higher, and mixing time is (30-40) s.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144961.5A CN106746926A (en) | 2016-12-13 | 2016-12-13 | Separate type plantmix warms the preparation method of reclaimed asphalt mixture |
| PCT/CN2017/093284 WO2017202395A1 (en) | 2016-05-23 | 2017-07-18 | Plant mix warm regenerated asphalt mixture and preparation method therefor |
| JP2019514177A JP6633248B2 (en) | 2016-05-23 | 2017-07-18 | Plant mix medium-temperature regenerated asphalt mixture and method for producing the same |
| EP17802241.4A EP3467045A4 (en) | 2016-05-23 | 2017-07-18 | Plant mix warm regenerated asphalt mixture and preparation method therefor |
| US16/304,167 US11472740B2 (en) | 2016-05-23 | 2017-07-18 | Plant-mixed warm regenerated asphalt mixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144961.5A CN106746926A (en) | 2016-12-13 | 2016-12-13 | Separate type plantmix warms the preparation method of reclaimed asphalt mixture |
Publications (1)
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| WO2017202395A1 (en) * | 2016-05-23 | 2017-11-30 | 江苏天诺道路材料科技有限公司 | Plant mix warm regenerated asphalt mixture and preparation method therefor |
| CN107698199A (en) * | 2017-07-31 | 2018-02-16 | 江苏诺路桥工程检测有限公司 | A kind of High Modulus Asphalt Mixture based on old pavement milling material and preparation method thereof |
| CN109269958A (en) * | 2018-10-30 | 2019-01-25 | 南京理工大学泰州科技学院 | Water mixing mud macrovoid water penetration reclaimed asphalt mixture and preparation and measuring method |
| CN109487662A (en) * | 2019-01-09 | 2019-03-19 | 江苏天诺道路材料科技有限公司 | The equipment that bituminous pavement reclaimed materials prepares regeneration asphalt glue sand and mixture |
| CN110342849A (en) * | 2019-08-08 | 2019-10-18 | 辽宁新发展公路科技养护有限公司 | A method of prefabricated drain tank is prepared using the regeneration of bituminous pavement top milling material |
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| CN111689720A (en) * | 2020-06-22 | 2020-09-22 | 河北瑞志交通技术咨询有限公司 | Asphalt brick and production method thereof |
| CN112982088A (en) * | 2021-02-25 | 2021-06-18 | 山东高速建设管理集团有限公司 | Heating and mixing process for regenerated asphalt mixture and mixing station thereof |
| CN114716184A (en) * | 2022-04-26 | 2022-07-08 | 山东英朗路桥工程股份有限公司 | Preparation method of asphalt regeneration mixture |
| CN115217010A (en) * | 2022-08-23 | 2022-10-21 | 辽宁省交通规划设计院有限责任公司 | Method for recycling heat of ultrathin wearing layer |
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| WO2017202395A1 (en) * | 2016-05-23 | 2017-11-30 | 江苏天诺道路材料科技有限公司 | Plant mix warm regenerated asphalt mixture and preparation method therefor |
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| CN107698199A (en) * | 2017-07-31 | 2018-02-16 | 江苏诺路桥工程检测有限公司 | A kind of High Modulus Asphalt Mixture based on old pavement milling material and preparation method thereof |
| CN110540383A (en) * | 2018-05-29 | 2019-12-06 | 江苏一诺路桥工程检测有限公司 | Regenerated asphalt mortar and method for preparing asphalt mixture by using same |
| CN109269958A (en) * | 2018-10-30 | 2019-01-25 | 南京理工大学泰州科技学院 | Water mixing mud macrovoid water penetration reclaimed asphalt mixture and preparation and measuring method |
| CN109487662A (en) * | 2019-01-09 | 2019-03-19 | 江苏天诺道路材料科技有限公司 | The equipment that bituminous pavement reclaimed materials prepares regeneration asphalt glue sand and mixture |
| CN110342849B (en) * | 2019-08-08 | 2022-01-14 | 北方道路科技(辽宁)有限公司 | Method for preparing prefabricated drainage groove by utilizing asphalt pavement surface layer milling material for regeneration |
| CN110342849A (en) * | 2019-08-08 | 2019-10-18 | 辽宁新发展公路科技养护有限公司 | A method of prefabricated drain tank is prepared using the regeneration of bituminous pavement top milling material |
| CN111499273A (en) * | 2020-04-27 | 2020-08-07 | 河南征远沥青砼有限公司 | Preparation method of hot recycled asphalt mixture |
| CN111689720A (en) * | 2020-06-22 | 2020-09-22 | 河北瑞志交通技术咨询有限公司 | Asphalt brick and production method thereof |
| CN111689720B (en) * | 2020-06-22 | 2022-05-03 | 河北交规院瑞志交通技术咨询有限公司 | Asphalt brick and production method thereof |
| CN112982088A (en) * | 2021-02-25 | 2021-06-18 | 山东高速建设管理集团有限公司 | Heating and mixing process for regenerated asphalt mixture and mixing station thereof |
| CN114716184A (en) * | 2022-04-26 | 2022-07-08 | 山东英朗路桥工程股份有限公司 | Preparation method of asphalt regeneration mixture |
| CN115217010A (en) * | 2022-08-23 | 2022-10-21 | 辽宁省交通规划设计院有限责任公司 | Method for recycling heat of ultrathin wearing layer |
| CN115849766A (en) * | 2022-09-23 | 2023-03-28 | 保利长大工程有限公司 | Processing technology of mixing ratio of regenerant in hot mix plant recycled asphalt |
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