CN106746930A - High additive heated tool butt-welding asphalt and preparation method thereof - Google Patents
High additive heated tool butt-welding asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN106746930A CN106746930A CN201710073729.5A CN201710073729A CN106746930A CN 106746930 A CN106746930 A CN 106746930A CN 201710073729 A CN201710073729 A CN 201710073729A CN 106746930 A CN106746930 A CN 106746930A
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- aggregate
- coarse aggregate
- heated tool
- weight portion
- high additive
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Classifications
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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
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of high additive heated tool butt-welding asphalt, including following weight portion component：The weight portion of reclaimed bituminous pavement reclaimed materials 30~70；The new weight portion of mineral aggregate 25 65；The weight portion of miberal powder 23, the weight portion of pitch 2.8 2.9；The weight portion of heated tool butt-welding agent 0.1 0.2.Its advantage is：By RAP reclaimed materials crushing and screening into three groups of reclaimed materials of different-grain diameter scope, it is easy to optimize and controls.Wherein, the first coarse aggregate and the second coarse aggregate Hybrid Heating, with preferable mobility, will not stick on drying inwall.Fine aggregate consumption is less relatively thin, fast and easy heat conduction of conducting heat, being capable of keeping temperature well.Not heated being added directly into a mixing bowl is stirred together with other materials during fine aggregate simultaneously, so being not in the phenomenon of caking conglomeration.
Description
Technical field
The present invention relates to construction of the highway field of material technology, more particularly to a kind of high additive heated tool butt-welding asphalt and
Its preparation method.
Background technology
For a long time, Regenerative Technique of Asphalt Mixture is always one of popular direction that field of road is persistently studied.
In particular with the sustained and rapid development of Chinese national economy, after it experienced large-scale road construction, produced in transformation process
Substantial amounts of recovery asphalt pavement material, i.e. RAP material are given birth to.The regeneration of asphalt can effectively dispose waste material, reduce new
The yield of material, saves substantial amounts of pitch and sandstone material, is conducive to environmental protection, cost saving.But, regeneration is mixed
Close material and belong to high additive more than 30%, be easy to RAP caking clustering phenomenas occur in production process, easily leak into the process of mixing and stirring
In a mixing bowl, it is difficult to be opened by mixing and stirring agglomerate, causes regenerating mixture to be contained within conglomeration of luming, is brought to construction and production
Inconvenience.
The content of the invention
For solve the above problems one or more, the invention provides a kind of high additive heated tool butt-welding asphalt and
Its preparation method.
According to an aspect of the present invention, there is provided a kind of high additive heated tool butt-welding asphalt, including following weight portion
Component：The weight portion of reclaimed bituminous pavement reclaimed materials 30~70；New mineral aggregate 25-65 weight portions；Miberal powder 2-3 weight portions, pitch
2.8-2.9 weight portions；Heated tool butt-welding agent 0.1-0.2 weight portions.
In some embodiments, reclaimed bituminous pavement reclaimed materials includes 15% fine aggregate, 50% the first coarse aggregate
The second coarse aggregate with 35%.
In some embodiments, the particle diameter of fine aggregate is 0-5mm.
In some embodiments, the particle diameter of the first coarse aggregate is 10-30mm.
In some embodiments, the particle diameter of the second coarse aggregate is 5-10mm.
According to another aspect of the present invention, there is provided a kind of preparation method of high additive heated tool butt-welding asphalt,
Comprise the following steps：
1) recovery and pretreatment of asphalt road surface material RAP material：Crushing and screening so that RAP material are divided into thin collection by particle size
Material 0-5mm, the first coarse aggregate 10-30mm, the second coarse aggregate 5-10mm；
2) to take be delivered in the second Drying after the first coarse aggregate and the metering of the second coarse aggregate and carry out Hybrid Heating drying, plus
Hot temperature is 120-130 DEG C, and the heat time is 10~15S；
3) step 2 is sprayed at after regenerative agent is measured) obtained by compound on and be incubated；
4) by step 3) obtained by compound input a mixing bowl in；
5) new mineral aggregate is delivered to the heating of the first Drying, heating-up temperature is 20-130 DEG C and is incubated,
6) by heating after the metering of new mineral aggregate after be delivered to a mixing bowl and step 4) in material mix, mixing time
It is 5~10S；
7) it is added to after fine aggregate is measured in a mixing bowl and stirs 8~15S with the compound of step 5 gained；
8) will heated bitumen and miberal powder measure simultaneously after be added in a mixing bowl and step 6) material mix, during stirring
Between be 30~35S；
9) discharge.
Its advantage is：First, bituminous paving reclaimed materials is transported to pitch batching plant, after crushing and screening, necessarily to compare
Example forms regenerating mixture and applies with unclassified stores, can realize resource regeneration application, increases the utilization rate of old material.Secondly,
In the preparation process of compound, by RAP reclaimed materials crushing and screening into three groups of reclaimed materials of different-grain diameter scope, be easy to optimization and
Control.Wherein, the first coarse aggregate and the second coarse aggregate Hybrid Heating, with preferable mobility, will not stick in drying
On wall.Fine aggregate consumption is less relatively thin, fast and easy heat conduction of conducting heat, being capable of keeping temperature well.Simultaneously fine aggregate when without
Heating is added directly into a mixing bowl and is stirred together with other materials, so being not in the phenomenon of caking conglomeration, compound is obtained
To being sufficiently stirred for.Again, using heat transfer principle, by the fine aggregate of 0-5mm, its this particle diameter is smaller to be easy to heat transfer, directly
Connect metering and enter and mix cylinder and can reduce 5% heating cost and 5% noxious gas emission.It can be seen that, compound of the invention and its system
The effects of energy saving and emission reduction of Preparation Method is also fairly obvious.
In some embodiments, the second Drying inside is claw structure, and length is 10m.Its advantage is：It is this
Second Drying of structure, is conducive to homogeneous heating so that the mobility of RAP more preferably, is difficult to stick to the second drying after heating
Cylinder inwall.
In some embodiments, fine aggregate, the first coarse aggregate, the ratio of the second coarse aggregate of asphalt road surface material RAP material
It is 50：35：15.Its advantage is：Ensure the stability of regeneration mix mixing proportion, while ensuring reclaimed materials in the second drying
In cylinder in heating process with good mobility, and ensure that old material will not be sticked on the second Drying inwall, subtract
Few manual cleaning.
In some embodiments, step 2) in the first coarse aggregate be 15~35 weight portions, the second coarse aggregate be 10.5
~24.5 weight portions；Step 3) in regenerative agent be 0.1~0.2 weight portion, step 6) in new mineral aggregate be 25~65 weight portions；
Step 7) in fine aggregate be 4.5~10.5 weight portions；Step 8) in heated bitumen be 2.8~2.9 weight portions, miberal powder be 2~3
Weight portion.
Brief description of the drawings：
Fig. 1 is the photo that the asphalt prepared using the method for the present invention is combined with road surface；
Fig. 2 is the photo after prior art asphalt is combined with road surface；
Fig. 3 is the photo after prior art asphalt is combined with road surface.
Specific embodiment
With reference to embodiment, the present invention is further detailed explanation.
Embodiment 1
1) recovery and pretreatment of asphalt road surface material RAP material
Old asphalt pavement to needing milling is sampled detection, determines that ground surface material quality meets use requirement, uses
Road-surface milling equipment carries out milling to old asphalt pavement, the Bituminous concrete surface reclaimed materials classification obtained to milling, and road surface is avoided during milling
The section that depression, net crack etc. polluted, it is ensured that reclaimed materials cleaning no-sundries.
2) the broken and screening of RAP reclaimed materials
By step 1) obtain same batch of reclaimed materials be sufficiently mixed with machinery after carry out break process, then carry out at screening
Reason, is sieved the fine aggregate for particle diameter 0-5mm, first coarse aggregate of 10-30mm, the third gear of second coarse aggregate of 5-10mm
Material.
3) coarse aggregate is mixed and heated drying
Take step 2) in the first coarse aggregate of 15 weight portions and the second coarse aggregate of 10.5 weight portions conveyed using elevator
Heating, drying is carried out into the second Drying, heating-up temperature is 120 DEG C, and the heat time is 10S；Wherein, inside the second Drying
It is claw structure, length is 10m, the old material after heating is directly entered metering storage warehouse, and storage warehouse electrified heating function can be effective
Insulation.
4) take on regenerative agent sprinkling first coarse aggregate after the heating of 0.1 weight portion and the compound of the second coarse aggregate,
Then compound is put into a mixing bowl.
5) new mineral aggregate is delivered to the heating of the first Drying, heating-up temperature is 120-130 DEG C and is incubated.
6) take the new mineral aggregate of 25 weight portions after heating and be delivered to a mixing bowl and step 4) in material mix, during stirring
Between be 5S.
7) fine aggregate of 4.5 weight portions is added in a mixing bowl and step 6) obtained by compound stir 8S.
8) 2.8 weight portion heated bitumens and 2 weight portion miberal powders are added in a mixing bowl and step 7 simultaneously) material mix
Stirring, mixing time is 30S, and wherein the temperature of heated bitumen is 135~145 DEG C.
9) discharge.
Embodiment 2
1) recovery and pretreatment of asphalt road surface material RAP material
Old asphalt pavement to needing milling is sampled detection, determines that ground surface material quality meets use requirement, uses
Road-surface milling equipment carries out milling to old asphalt pavement, the Bituminous concrete surface reclaimed materials classification obtained to milling, and road surface is avoided during milling
The section that depression, net crack etc. polluted, it is ensured that reclaimed materials cleaning no-sundries.
2) the broken and screening of RAP reclaimed materials
By step 1) obtain same batch of reclaimed materials be sufficiently mixed with machinery after carry out break process, then carry out at screening
Reason, is sieved the fine aggregate for particle diameter 0-5mm, first coarse aggregate of 10-30mm, the third gear of second coarse aggregate of 5-10mm
Material.
3) coarse aggregate is mixed and heated drying
Take step 2) in the first coarse aggregate of 25 weight portions and the second coarse aggregate of 17.5 weight portions conveyed using elevator
Heating, drying is carried out into the second Drying, heating-up temperature is 120 DEG C, and the heat time is 12S；Wherein, inside the second Drying
It is claw structure, length is 10m, the old material after heating is directly entered metering storage warehouse, and storage warehouse electrified heating function can be effective
Insulation.
4) take on regenerative agent sprinkling first coarse aggregate after the heating of 0.15 weight portion and the compound of the second coarse aggregate,
Then compound is put into a mixing bowl.
5) new mineral aggregate is delivered to the heating of the first Drying, heating-up temperature is 120-130 DEG C and is incubated.
6) take the new mineral aggregate of 50 weight portions after heating and be delivered to a mixing bowl and step 4) in material mix, during stirring
Between be 6S.
7) fine aggregate of 7.5 weight portions is added in a mixing bowl and step 6) obtained by compound stir 10S.
8) 2.8 weight portion heated bitumens and 2.5 weight portion miberal powders are added in a mixing bowl and step 7 simultaneously) material mix
Stirring is closed, mixing time is 30S, wherein the temperature of heated bitumen is 135~145 DEG C.
9) discharge.
Embodiment 3
4) recovery and pretreatment of asphalt road surface material RAP material
Old asphalt pavement to needing milling is sampled detection, determines that ground surface material quality meets use requirement, uses
Road-surface milling equipment carries out milling to old asphalt pavement, the Bituminous concrete surface reclaimed materials classification obtained to milling, and road surface is avoided during milling
The section that depression, net crack etc. polluted, it is ensured that reclaimed materials cleaning no-sundries.
5) the broken and screening of RAP reclaimed materials
By step 1) obtain same batch of reclaimed materials be sufficiently mixed with machinery after carry out break process, then carry out at screening
Reason, is sieved the fine aggregate for particle diameter 0-5mm, first coarse aggregate of 10-30mm, the third gear of second coarse aggregate of 5-10mm
Material.
6) coarse aggregate is mixed and heated drying
Take step 2) in the first coarse aggregate of 35 weight portions and the second coarse aggregate of 24.5 weight portions conveyed using elevator
Heating, drying is carried out into the second Drying, heating-up temperature is 130 DEG C, and the heat time is 10S；Wherein, inside the second Drying
It is claw structure, length is 10m, the old material after heating is directly entered metering storage warehouse, and storage warehouse electrified heating function can be effective
Insulation.
4) take on regenerative agent sprinkling first coarse aggregate after the heating of 0.2 weight portion and the compound of the second coarse aggregate,
Then compound is put into a mixing bowl.
5) new mineral aggregate is delivered to the heating of the first Drying, heating-up temperature is 120-130 DEG C and is incubated.
6) take the new mineral aggregate of 65 weight portions after heating and be delivered to a mixing bowl and step 4) in material mix, during stirring
Between be 10S.
7) fine aggregate of 10.5 weight portions is added in a mixing bowl and step 6) obtained by compound stir 10S.
8) 2.9 weight portion heated bitumens and 3 weight portion miberal powders are added in a mixing bowl and step 7 simultaneously) material mix
Stirring, mixing time is 35S, and wherein the temperature of heated bitumen is 135~145 DEG C.
9) discharge.
Regenerative agent its quality requirement in above example meets the requirement of table 1 below：
The quality requirement of table 1- regenerative agents
Had the advantage that from the regenerative agent improved quality：
1st, can be readily permeable to inside RAP；
2nd, the composition that supplement aged asphalt loses；
3rd, compound overall performance is strengthened.
Comparative example 4
Common hot-mix asphalt mixture.
Embodiment 5
(1) under identical condition, the ratio between every pavement performance index and plain asphalt of compound of the invention
Relatively such as table 2 below：
Table 2- performance tests
(2) compound such as Fig. 1 present invention preparations is uniform, and in the absence of clustering phenomena, the construction texture depth on road surface is good,
There is certain frictional resistance so as to improve skidding performance, and mixing of the invention is can be seen that from above table
Material also has stronger mechanical property.And the common display that Fig. 2, Fig. 3 are comparative examples 4 has substantial amounts of clustering phenomena, hold
Easily cause the uneven generation early damage on road surface.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
Enclose.
Claims (9)
1. high additive heated tool butt-welding asphalt, it is characterised in that the component including following weight portion：
2. high additive heated tool butt-welding asphalt according to claim 1, it is characterised in that described regeneration asphalt road
Face reclaimed materials includes 15% fine aggregate, 50% the first coarse aggregate and 35% the second coarse aggregate.
3. high additive heated tool butt-welding asphalt according to claim 2, it is characterised in that the particle diameter of the fine aggregate
It is 0-5mm.
4. high additive heated tool butt-welding asphalt according to claim 2, it is characterised in that the particle diameter of the first coarse aggregate
It is 10-30mm.
5. high additive heated tool butt-welding asphalt according to claim 2, it is characterised in that the particle diameter of the second coarse aggregate
It is 5-10mm.
6. the preparation method of high additive heated tool butt-welding asphalt, it is characterised in that comprise the following steps：
1) recovery and pretreatment of asphalt road surface material RAP material：Crushing and screening so that RAP material are divided into fine aggregate 0- by particle size
5mm, the first coarse aggregate 10-30mm, the second coarse aggregate 5-10mm；
2) to take be delivered in the second Drying after the first coarse aggregate and the metering of the second coarse aggregate and carry out Hybrid Heating drying, heating temperature
It is 120-130 DEG C to spend, and the heat time is 10~15S；3) step 2 is sprayed at after regenerative agent is measured) obtained by compound on simultaneously
Insulation；
4) by step 3) obtained by compound input a mixing bowl in；
5) new mineral aggregate is delivered to the heating of the first Drying, heating-up temperature is 120-130 DEG C and is incubated,
6) by heating after the metering of new mineral aggregate after be delivered to a mixing bowl and step 4) in material mix, mixing time is 5
~10S；
7) it is added to after fine aggregate is measured in a mixing bowl and stirs 8~15S with the compound of step 5 gained；
8) will heated bitumen and miberal powder measure simultaneously after be added in a mixing bowl and step 6) material mix, mixing time is
30~35S；
9) discharge.
7. the preparation method of high additive heated tool butt-welding asphalt according to claim 6, it is characterised in that described
Two Dryings inside is claw structure, and length is 10m.
8. the preparation method of high additive heated tool butt-welding asphalt according to claim 6, it is characterised in that the drip
The fine aggregate of blue or green road surface material RAP material, the first coarse aggregate, the ratio of the second coarse aggregate are 15：50：35.
9. the preparation method of high additive heated tool butt-welding asphalt according to claim 6, it is characterised in that step 2)
In the first coarse aggregate be 15~35 weight portions, the second coarse aggregate be 10.5~24.5 weight portions；Step 3) in regenerative agent be
0.1~0.2 weight portion, step 6) in new mineral aggregate be 25~65 weight portions；Step 7) in fine aggregate be 4.5~10.5 weight
Part；Step 8) in heated bitumen be 2.8~3.0 weight portions, miberal powder be 2~3 weight portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073729.5A CN106746930B (en) | 2017-02-10 | 2017-02-10 | High-mixing-amount hot-mix recycled asphalt mixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073729.5A CN106746930B (en) | 2017-02-10 | 2017-02-10 | High-mixing-amount hot-mix recycled asphalt mixture and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106746930A true CN106746930A (en) | 2017-05-31 |
| CN106746930B CN106746930B (en) | 2020-03-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623201A (en) * | 2018-08-16 | 2018-10-09 | 桂勘 | A kind of preparation method of large scale regenerating waste asphalt mixture |
| CN109626876A (en) * | 2019-01-28 | 2019-04-16 | 上海时申工贸有限公司 | A kind of anticracking bituminous concrete and its preparation process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070122235A1 (en) * | 2004-12-03 | 2007-05-31 | Green Arm Co., Ltd. | Method for continuous on-site recycling of an asphalt mixture layer of a pavement and a motor-driven vehicle system therefor |
| CN101121822A (en) * | 2006-08-09 | 2008-02-13 | 上海建设机场道路工程有限公司 | Industrialized heat regeneration asphalt mixture and preparation method thereof |
-
2017
- 2017-02-10 CN CN201710073729.5A patent/CN106746930B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070122235A1 (en) * | 2004-12-03 | 2007-05-31 | Green Arm Co., Ltd. | Method for continuous on-site recycling of an asphalt mixture layer of a pavement and a motor-driven vehicle system therefor |
| CN101121822A (en) * | 2006-08-09 | 2008-02-13 | 上海建设机场道路工程有限公司 | Industrialized heat regeneration asphalt mixture and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623201A (en) * | 2018-08-16 | 2018-10-09 | 桂勘 | A kind of preparation method of large scale regenerating waste asphalt mixture |
| CN109626876A (en) * | 2019-01-28 | 2019-04-16 | 上海时申工贸有限公司 | A kind of anticracking bituminous concrete and its preparation process |
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| Publication number | Publication date |
|---|---|
| CN106746930B (en) | 2020-03-31 |
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Effective date of registration: 20210126 Address after: 210000 Bian Yun group, Luying community neighborhood committee, Changlu street, Jiangbei new district, Nanjing City, Jiangsu Province Patentee after: Nanjing chengkai intensive Building Materials Technology Co.,Ltd. Address before: 210000 Bian Yun group, Luying community neighborhood committee, Changlu street, Yanjiang Industrial Development Zone, Nanjing City, Jiangsu Province Patentee before: NANJING GOOD ROAD BRIDGE ENGINEERING Co.,Ltd. |