CN108316094A - A kind of bituminous paving reclaimed materials and its warm mix regeneration technology - Google Patents
A kind of bituminous paving reclaimed materials and its warm mix regeneration technology Download PDFInfo
- Publication number
- CN108316094A CN108316094A CN201810226085.3A CN201810226085A CN108316094A CN 108316094 A CN108316094 A CN 108316094A CN 201810226085 A CN201810226085 A CN 201810226085A CN 108316094 A CN108316094 A CN 108316094A
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- CN
- China
- Prior art keywords
- parts
- rap
- matrix pitch
- primary material
- bituminous paving
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/1027—Mixing in a rotary receptacle
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The present invention discloses a kind of bituminous paving reclaimed materials and its warm mix regeneration technology, and material is by RAP：35 45 parts, primary material：55 65 parts, 1.5 2 parts of cement, 2.3 3.5 parts of compositions of regeneration matrix pitch；RAP by the percent of pass for design of gathering materials, is sent by measuring belt in RAP heating rollers by present invention process in proportion respectively, carries out heating mixing, and heating temperature is 130 135 DEG C；Primary material is sent into primary material by measuring belt by design mixture proportion to heat in roller, is heated to 140 145 DEG C；RAP and primary material are added to by design proportioning respectively and mixed in cylinder, spray into regeneration matrix pitch, after 3 seconds, cement is added to be mixed and stirred, mixing time controlled at 35 45 seconds, and regeneration ratio is greatly improved in the present invention, and ratios of the RAP in regenerating mixture is up to 40 45%, temperature also reduces 30 DEG C or more, and the secondary problem of aging of pitch is greatly reduced.
Description
Technical field
The present invention relates to highway recycling road material deep process technology field, specific more particularly to a kind of bituminous paving reclaimed materials and
Its warm mix regeneration technology.
Background technology
Currently, highway pavement largely uses pitch as road surface cementitious material.And bituminous paving is rolled by long-term vehicle
After traveling, there are the diseases such as fatigue cracking, breakage, pit slot in road surface, for this purpose, road surface can using after several years, can in repair or overhaul,
Top course or middle cutting optimal milling are got off, after handling sub-layer, overlay road surface again；Conventional method is by road
The material that facing cut is dug i.e. road surface reclaimed materials RAP falls as waste disposal, then does new road surface again；As resource is nervous,
Environmental protection ideas gos deep into, and RAP for this purpose, there is shutting mechanism to develop cold renewal, i.e., works as RAP as rubbish not permitted in government
At building stones, the base on road surface is done, the place of a storage actually or by RAP has been changed as rubbish, this is one
Value not reciprocity " regeneration " utilizes.
In order to realize that equivalent regeneration, people mix and stir RAP together with primary material, reclaimed asphalt mixture is formed, but this
High temperature regeneration so that RAP ginsengs are not high with ratio, and China is substantially 20% or so, and temperature is up to 170 DEG C or more, leads to pitch
The secondary aging of material；
The present invention solves the chronic illness of above-mentioned conventional regeneration, and regeneration ratio is greatly improved, and RAP is in regenerating mixture
In ratio be up to 40-45%, temperature also reduces 30 DEG C or more, the secondary problem of aging of pitch is greatly reduced, under
Secondary regeneration, creates condition.
Invention content
For this purpose, a kind of bituminous paving reclaimed materials of present invention proposition and its warm mix regeneration technology, are greatly improved reproduction ratio
Example, ratios of the RAP in regenerating mixture are up to 40-45%, and temperature also reduces 30 DEG C or more, pitch is greatly reduced
Secondary problem of aging creates condition for the regeneration of next time.
The present invention is realized by following means：
A kind of bituminous paving reclaimed materials, is made of following material by weight：RAP：35-45 parts, primary material：55-65 parts,
1.5-2 parts of cement regenerates 2.3-3.5 parts of matrix pitch.
Preferably, the regeneration matrix pitch is made of warm mix regenerative agent with matrix pitch, and the matrix pitch is public affairs
Road with A grades of pitches at 120-130 DEG C, with regeneration warm-mixing agent be stirred after, the homogeneous mixture of formation.
Preferably, a kind of bituminous paving reclaimed materials, is made of following material by weight：AP：35 parts, primary material：65 parts,
1.5 parts of cement, 2.9 parts of of regeneration matrix pitch
Preferably, a kind of bituminous paving reclaimed materials, is made of following material by weight：RAP：40 parts, primary material：60
Part, 1.5 parts of cement regenerates 2.6 parts of matrix pitch.
Preferably, a kind of bituminous paving reclaimed materials, is made of following material by weight：RAP：45 parts, primary material：55
Part, 1.5 parts of cement regenerates 3.4 parts of matrix pitch.
A kind of bituminous paving reclaimed materials warm mix regeneration method, comprises the following steps that：By RAP passing through by design of gathering materials
Rate is sent by measuring belt in RAP heating rollers, carries out heating mixing, heating temperature 130-135 in proportion respectively
℃；Primary material is sent into primary material by measuring belt by design mixture proportion to heat in roller, is heated to 140-145 DEG C；Respectively
RAP and primary material are added to by design proportioning and mixed in cylinder, regeneration matrix pitch is sprayed into, after 3 seconds, cement is added and is mixed and stirred,
Mixing time controlled at 35-45 seconds.
A kind of bituminous paving reclaimed materials warm mix regeneration method, includes following processing step：Each material is mixed, and
The proportional region of warm mix regenerative agent and water is added thereto 1:10-1:20 dilution, and the spy of 0.3-1% is added thereto
Kind of activating agent is added cement and is mixed and stirred, and mixing time control was at 35-45 seconds, 140-145 DEG C of heating temperature.
Advantageous effect of the present invention：Regeneration ratio is greatly improved in the present invention, and ratios of the RAP in regenerating mixture can be high
Up to 40-45%, temperature also reduces 30 DEG C or more, and the secondary problem of aging of pitch is greatly reduced, for the regeneration of next time, wound
Condition is made, bituminous paving reclaimed materials of the present invention has following material characteristic：Marshall stability：AC classes mixture 11~
20KN, flow valuve 15~40, Marshall residual stability 80-85%, 3000-6000 times/mm of dynamic stability.
Specific implementation mode：
In order to make those skilled in the art more fully understand technical scheme of the present invention, with reference to embodiment to this hair
It is bright to be described further：
A kind of bituminous paving reclaimed materials, is made of following material by weight：RAP：35-45 parts, primary material：55-65 parts,
1.5-2 parts of cement regenerates 2.3-3.5 parts of matrix pitch.
Preferably, the regeneration matrix pitch is made of warm mix regenerative agent with matrix pitch, and the matrix pitch is public affairs
Road with A grades of pitches at 120-130 DEG C, with regeneration warm-mixing agent be stirred after, the homogeneous mixture of formation.
Preferably, a kind of bituminous paving reclaimed materials, is made of following material by weight：AP：35 parts, primary material：65 parts,
1.5 parts of cement, 2.9 parts of of regeneration matrix pitch
Preferably, a kind of bituminous paving reclaimed materials, is made of following material by weight：RAP：40 parts, primary material：60
Part, 1.5 parts of cement regenerates 2.6 parts of matrix pitch.
Preferably, a kind of bituminous paving reclaimed materials, is made of following material by weight：RAP：45 parts, primary material：55
Part, 1.5 parts of cement regenerates 3.4 parts of matrix pitch.
A kind of bituminous paving reclaimed materials warm mix regeneration method, comprises the following steps that：By RAP passing through by design of gathering materials
Rate is sent by measuring belt in RAP heating rollers, carries out heating mixing, heating temperature 130-135 in proportion respectively
℃；Primary material is sent into primary material by measuring belt by design mixture proportion to heat in roller, is heated to 140-145 DEG C；Respectively
RAP and primary material are added to by design proportioning and mixed in cylinder, regeneration matrix pitch is sprayed into, after 3 seconds, cement is added and is mixed and stirred,
Mixing time controlled at 35-45 seconds.
A kind of bituminous paving reclaimed materials warm mix regeneration method, includes following processing step：Each material is mixed, and
The proportional region of warm mix regenerative agent and water is added thereto 1:10-1:20 dilution, and the spy of 0.3-1% is added thereto
Kind of activating agent is added cement and is mixed and stirred, and mixing time control was at 35-45 seconds, 140-145 DEG C of heating temperature.
Testing inspection：By People's Republic of China's professional standard：Highway engineering pitch and Asphalt Mixture Experiment regulation
T709-2011, T719-2011, as a result such as following table：
Above certain exemplary embodiments that the present invention is only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the scope of the invention can be with a variety of different modes to described reality
Example is applied to be modified.Therefore, foregoing description is regarded as illustrative in nature, and should not be construed as protecting model to the claims in the present invention
The limitation enclosed.
Unless otherwise defined, all academic and scientific terminologies used herein have the technical field of the invention common
The identical meanings that technical staff is understood.
In the case of inconsistent, the definition in this specification shall prevail.
Unless otherwise indicated, all percentage, number, ratio etc. are by weight.
When providing numerical value or numberical range, a series of preferred scope or lower preferable values and upper limit preferred value, should manage
It is solved to specifically disclose by any of any smaller range limit or preferred value and any larger range limit or preferred value
One logarithm is formed by any range, regardless of whether range is disclosed respectively.Unless otherwise indicated, it is described in this specification
In place of numberical range, the range is intended to include all integers and the score in range endpoints and range.
When term " about " or " left and right " are used to describe the end value of number value or range, disclosure of that should be include this
Concrete numerical value or involved end value.
Using the element and component of the usage of " one " and "/kind " the description present invention, this only for it is convenient and in order to
Provide ordinary circumstance of the present invention.Unless otherwise apparent statement, which should be interpreted as include/kind or at least one/kind.
Claims (6)
1. a kind of bituminous paving reclaimed materials, it is characterised in that：It is made of by weight following material：RAP：It is 35-45 parts, primary
Material：55-65 parts, 1.5-2 parts of cement regenerates 2.3-3.5 parts of matrix pitch.
2. a kind of bituminous paving reclaimed materials according to claim 1, it is characterised in that：The regeneration matrix pitch is by temperature
Regenerative agent and matrix pitch is mixed to constitute, the matrix pitch be highway with A grade pitches at 120-130 DEG C, and regenerate warm-mixing agent
After being stirred, the homogeneous mixture of formation.
3. a kind of bituminous paving reclaimed materials according to claim 1, it is characterised in that：By weight by following material structure
At：AP：35 parts, primary material：65 parts, 1.5 parts of cement regenerates 2.9 parts of matrix pitch.
4. a kind of bituminous paving reclaimed materials according to claim 1, it is characterised in that：By weight by following material structure
At：RAP：40 parts, primary material：60 parts, 1.5 parts of cement regenerates 2.6 parts of matrix pitch.
5. a kind of bituminous paving reclaimed materials according to claim 1, it is characterised in that：By weight by following material structure
At：RAP：45 parts, primary material：55 parts, 1.5 parts of cement regenerates 3.4 parts of matrix pitch.
6. a kind of bituminous paving reclaimed materials warm mix regeneration method, it is characterised in that：It comprises the following steps that：By RAP by gathering materials
The percent of pass of design is sent by measuring belt in RAP heating rollers, carries out heating mixing, heating temperature in proportion respectively
It is 130-135 DEG C；Primary material is sent into primary material by measuring belt by design mixture proportion to heat in roller, is heated to 140-
145℃；RAP and primary material are added to by design proportioning respectively and mixed in cylinder, regeneration matrix pitch is sprayed into, after 3 seconds, cement is added
It is mixed and stirred, the mixing time controlled at 35-45 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810226085.3A CN108316094A (en) | 2018-03-19 | 2018-03-19 | A kind of bituminous paving reclaimed materials and its warm mix regeneration technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810226085.3A CN108316094A (en) | 2018-03-19 | 2018-03-19 | A kind of bituminous paving reclaimed materials and its warm mix regeneration technology |
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| Publication Number | Publication Date |
|---|---|
| CN108316094A true CN108316094A (en) | 2018-07-24 |
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ID=62898453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810226085.3A Pending CN108316094A (en) | 2018-03-19 | 2018-03-19 | A kind of bituminous paving reclaimed materials and its warm mix regeneration technology |
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| Country | Link |
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| CN (1) | CN108316094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541339A (en) * | 2019-09-10 | 2019-12-06 | 北京丰泽华夏生态环境科技有限公司 | Full-regeneration plant-mixed warm-regeneration mixing process for recycled materials (common RAP) of common heavy-duty asphalt pavement |
| CN112853866A (en) * | 2021-01-13 | 2021-05-28 | 陕西中霖集团工程设计研究有限公司 | Thermal regeneration method for asphalt pavement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755865A (en) * | 1996-03-25 | 1998-05-26 | The New Paraho Corporation | Asphalt rejuvenater and recycled asphalt composition |
| CN104211326A (en) * | 2014-08-26 | 2014-12-17 | 北京建筑大学 | Regenerated warm mix asphalt mixture and preparation method thereof |
| CN105601175A (en) * | 2015-12-18 | 2016-05-25 | 厦门华特公路沥青技术有限公司 | High-modulus asphalt paving material and preparation method thereof |
| CN105859175A (en) * | 2016-04-21 | 2016-08-17 | 天津市公路工程总公司 | Plant-mixed warm regenerated asphalt mixture of large-proportion RAP material |
| CN106316219A (en) * | 2016-08-18 | 2017-01-11 | 酒泉通达路桥有限责任公司 | Recycled asphalt mixture and preparation method thereof |
| CN106396502A (en) * | 2016-08-31 | 2017-02-15 | 深圳海川新材料科技有限公司 | Foamed warm mix recycled asphalt mixture and preparation method thereof |
| US20170107675A1 (en) * | 2011-05-17 | 2017-04-20 | Energy Creates Energy Llc | Systems and methods for mixing an asphalt composition |
-
2018
- 2018-03-19 CN CN201810226085.3A patent/CN108316094A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755865A (en) * | 1996-03-25 | 1998-05-26 | The New Paraho Corporation | Asphalt rejuvenater and recycled asphalt composition |
| US20170107675A1 (en) * | 2011-05-17 | 2017-04-20 | Energy Creates Energy Llc | Systems and methods for mixing an asphalt composition |
| CN104211326A (en) * | 2014-08-26 | 2014-12-17 | 北京建筑大学 | Regenerated warm mix asphalt mixture and preparation method thereof |
| CN105601175A (en) * | 2015-12-18 | 2016-05-25 | 厦门华特公路沥青技术有限公司 | High-modulus asphalt paving material and preparation method thereof |
| CN105859175A (en) * | 2016-04-21 | 2016-08-17 | 天津市公路工程总公司 | Plant-mixed warm regenerated asphalt mixture of large-proportion RAP material |
| CN106316219A (en) * | 2016-08-18 | 2017-01-11 | 酒泉通达路桥有限责任公司 | Recycled asphalt mixture and preparation method thereof |
| CN106396502A (en) * | 2016-08-31 | 2017-02-15 | 深圳海川新材料科技有限公司 | Foamed warm mix recycled asphalt mixture and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541339A (en) * | 2019-09-10 | 2019-12-06 | 北京丰泽华夏生态环境科技有限公司 | Full-regeneration plant-mixed warm-regeneration mixing process for recycled materials (common RAP) of common heavy-duty asphalt pavement |
| CN112853866A (en) * | 2021-01-13 | 2021-05-28 | 陕西中霖集团工程设计研究有限公司 | Thermal regeneration method for asphalt pavement |
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Application publication date: 20180724 |
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