CN109231881A - A method of the dedicated aggregate of pavement asphalt is prepared using building waste - Google Patents
A method of the dedicated aggregate of pavement asphalt is prepared using building waste Download PDFInfo
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- CN109231881A CN109231881A CN201811384015.7A CN201811384015A CN109231881A CN 109231881 A CN109231881 A CN 109231881A CN 201811384015 A CN201811384015 A CN 201811384015A CN 109231881 A CN109231881 A CN 109231881A
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- aggregate
- building waste
- dedicated
- pavement asphalt
- preparing
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of methods for preparing the dedicated aggregate of pavement asphalt using building waste, discarded common brick class, discarded concrete class building waste are successively passed through jaw crusher first for this method and hammer mill obtains recycled aggregate, grinding and preliminary reinforcing are carried out to recycled aggregate by Vertical Eccentric device and addition glass powder, cuprous iodide again, then addition fluorinated polyether siloxanes be mixed and is strengthened, it is finally mixed with waste plastic, Lauxite, obtains that caking property is good and the dedicated aggregate of the higher pavement asphalt of intensity.It mainly uses building waste for primary raw material in preparation method of the present invention, there is good environmental benefit and social benefit, increase the selection of construction refuse resource, reduce the cost of manufacture of pavement asphalt.
Description
Technical field
The invention belongs to construction material preparation technical fields, and in particular to a kind of using building waste, to prepare pavement asphalt special
With the method for aggregate.
Background technique
In building construction, a large amount of building wastes such as discarded concrete, discarded common brick can be all generated every year；In addition highway drips
Green pavement construction needs to consume a large amount of high-quality rubbles, and rubble belongs to non-renewable resources, is built in bituminous pavement using part
Rubbish prepares recycled aggregate, can not only alleviate natural aggregate situation in short supply, while also contributing to solving the processing of building waste
Problem.
Chinese patent CN201710818455.8 disclose it is a kind of using building waste, that waste plastic prepares pavement asphalt is special
With the method for aggregate, uses the building waste of the components such as masonry, concrete, timber, plastic products for raw material, use Vertical Eccentric
Device and water glass solution activating and regenerating aggregate are applied in asphalt aggregate；It is mixed that patent CN201310015063.X discloses pitch
Material antistripping agent is closed, is prepared using building waste micro mist, alkaline residue micro mist, coal gangue burned ash, additive, provides one kind
It can prevent villaumite and water is dual damages to pitch, and be notheated decomposition, will not cause damages to environment, price is just
Suitable asphalt antistripping agent.
Due to the low-density of recycled aggregate, macrovoid, low-intensity and high-hydroscopicity, it is limited in asphalt
It uses, on the whole, research of the building waste in asphalt is few.
Summary of the invention
In view of the deficiencies of the prior art, the dedicated aggregate of pavement asphalt is prepared using building waste the invention discloses a kind of
Discarded common brick class, discarded concrete class building waste are successively passed through jaw crusher and hammer crushing first by method, this method
Machine obtains recycled aggregate, then carries out grinding and first to recycled aggregate by Vertical Eccentric device and addition glass powder, cuprous iodide
Step is strengthened, and then adds fluorinated polyether siloxanes and be mixed and is strengthened, finally mixed with waste plastic, Lauxite
It closes, obtains that caking property is good and the dedicated aggregate of the higher pavement asphalt of intensity.Mainly using building rubbish in preparation method of the present invention
Rubbish is primary raw material, has good environmental benefit and social benefit, increases the selection of construction refuse resource, reduce road
The cost of manufacture of face pitch.
Technical scheme is as follows:
A method of the dedicated aggregate of pavement asphalt is prepared using building waste, comprising the following steps:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class be just crushed through jaw crusher, obtain building waste coarse aggregate；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, starter, high speed
Spin finishing improves the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate, strengthened regeneration
Aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, and underproof aggregate is again
Be ground to diameter no more than 5mm using Vertical Eccentric device；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, after being sufficiently mixed
20 ~ 30min is stood, the mechanical strength and water repelling property of aggregate are strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, heating is simultaneously
It stirs and evenly mixs, after natural cooling, the dedicated aggregate of the higher pavement asphalt of and intensity good with hot-melt asphalt cementability can be obtained.
As a further explanation of the present invention: discarding common brick class, the addition mass ratio of discarded concrete class is 2: 1.
As a further explanation of the present invention: cuprous iodide be added quality be initial regeneration aggregate weight 2.5% ~
5.5%。
As a further explanation of the present invention: the quality that glass powder is added is the 30% ~ 50% of initial aggregate weight.
As a further explanation of the present invention: the addition volume of fluorinated polyether silicone liquid is intensifying regenerating aggregate weight
0.5% ~ 2.5%.
As a further explanation of the present invention: the revolving speed of step (3) the Vertical Eccentric device spin finishing is 1400rpm
~1600rpm。
As a further explanation of the present invention: heating temperature is 90 DEG C ~ 100 DEG C in step (5).
As a further explanation of the present invention: the quality that Lauxite is added is the 5% ~ 10% of intensifying regenerating aggregate weight.
As a further explanation of the present invention: the quality that waste plastic is added is the 10% ~ 25% of initial regeneration aggregate weight.
Technical principle of the invention is as follows:
There are micro-cracks, macroporous disadvantage for recycled aggregate itself, can be improved by filling.Glass powder partial size is small, disperses
Property is good, can penetrate into the hole of recycled aggregate, improve the density and intensity of recycled aggregate.Glass is being used to recycled aggregate simultaneously
When powder is filled, glass powder and aggregate can produce " volcanic ash " effect, and cuprous iodide can be catalyzed the generation of volcano ash effect,
Using the heat and shearing force of grinding generation in grinding device, accelerate the reaction process of volcano ash effect, shortens the reaction time, and
Cuprous iodide powder is subtle, can have micro aggregate effect with aggregate, add cuprous iodide as outer penetration enhancer, increase the anti-of aggregate
It is aqueous.Meanwhile in conjunction with Vertical Eccentric device is used, the cement slurry on recycled aggregate surface and corner angle outstanding grinding are smoothed, from
And improve the mechanical property of recycled aggregate.
For the use needs for meeting the dedicated aggregate of pitch, it is also necessary to recycled aggregate is further enhanced or activation at
Reason, fluorinated polyether siloxanes is the fluorine silico-organic being prepared by the fluorinated polyether containing functional group through siloxane reactions
Product can generate gelatification with the minerals on recycled aggregate surface, be formed with the characteristic of Organic fluoride and organosilicon
" volcanic ash " effect, fills hole and infiltration lane in recycled aggregate, and the hallrcuts of recycled aggregate have obtained further repairing
It is multiple, the water imbibition of recycled aggregate is reduced, meanwhile, fluorinated polyether siloxanes also plays a part of solidification bonding, so that Regenerated Bone
The intensity and adhesiveness of material improve.
Finally by the waste plastic and Lauxite under addition molten condition, increase recycled aggregate surface by water resistance material
Material and caking property molecule, increase the water resistant, heat resistance and mechanical strength of recycled aggregate.
Beneficial effects of the present invention:
Using the dedicated aggregate of pitch prepared by the present invention, corner angle crackle is few, hole is few, water imbibition is low, mechanical strength is high, can be with drip
It is green to combine well；It uses building waste for primary raw material, increases its surcharge, having is well environmental benefit and society
Benefit, while reducing the cost of manufacture of the dedicated aggregate of pitch.
Specific embodiment
Embodiment 1:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class are added to by the mass ratio of 2:1 through carrying out just being crushed in jaw crusher, obtain the thick bone of building waste
Material；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, the quality of cuprous iodide
It is the 2.5% of initial regeneration aggregate weight, the quality of glass powder is the 35% of initial aggregate weight, and starter, high speed rotation is ground
Mill, revolving speed 1400rpm improve the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate obtain
Intensifying regenerating aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, underproof
Aggregate be ground to diameter no more than 5mm using Vertical Eccentric device again；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, fluorinated polyether silicon
The volume of oxygen alkane liquid is the 2.0% of intensifying regenerating aggregate weight, stands 30min after being sufficiently mixed, to the mechanical strength of aggregate and
Water repelling property is strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, wherein giving up
The quality for abandoning plastics is the 21% of initial regeneration aggregate weight, and the quality of Lauxite is the 10% of intensifying regenerating aggregate weight, is added
Heat is stirred and evenly mixed to 90 DEG C ~ 100 DEG C, and after natural cooling, the higher road of and intensity good with hot-melt asphalt cementability can be obtained
The dedicated aggregate of face pitch.
Embodiment 2:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class are added to by the mass ratio of 2:1 through carrying out just being crushed in jaw crusher, obtain the thick bone of building waste
Material；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, cuprous iodide quality is
The 4.5% of initial regeneration aggregate weight, the quality of glass powder are the 30% of initial aggregate weight, starter, high speed rotation grinding,
Revolving speed is 1600rpm, improves the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate are strengthened
Recycled aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, underproof aggregate
Be ground to diameter no more than 5mm using Vertical Eccentric device again；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, fluorinated polyether silicon
The volume of oxygen alkane liquid is the 0.5% of intensifying regenerating aggregate weight, stands 25min after being sufficiently mixed, to the mechanical strength of aggregate and
Water repelling property is strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, wherein giving up
The quality for abandoning plastics is the 25% of initial regeneration aggregate weight, and the quality of Lauxite is the 9% of intensifying regenerating aggregate weight, heating
It to 90 DEG C ~ 100 DEG C, stirs and evenly mixs, after natural cooling, the higher road surface of and intensity good with hot-melt asphalt cementability can be obtained
The dedicated aggregate of pitch.
Embodiment 3:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class are added to by the mass ratio of 2:1 through carrying out just being crushed in jaw crusher, obtain the thick bone of building waste
Material；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, the quality of cuprous iodide
It is the 5.5% of initial regeneration aggregate weight, the quality of glass powder is the 45% of initial aggregate weight, and starter, high speed rotation is ground
Mill, revolving speed 1500rpm improve the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate obtain
Intensifying regenerating aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, underproof
Aggregate be ground to diameter no more than 5mm using Vertical Eccentric device again；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, fluorinated polyether silicon
The volume of oxygen alkane liquid is the 1.5% of intensifying regenerating aggregate weight, stands 20min after being sufficiently mixed, to the mechanical strength of aggregate and
Water repelling property is strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, wherein giving up
The quality for abandoning plastics is the 15% of initial regeneration aggregate weight, and the quality of Lauxite is the 5% of intensifying regenerating aggregate weight, heating
It to 90 DEG C ~ 100 DEG C, stirs and evenly mixs, after natural cooling, the higher road surface of and intensity good with hot-melt asphalt cementability can be obtained
The dedicated aggregate of pitch.
Embodiment 4:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class are added to by the mass ratio of 2:1 through carrying out just being crushed in jaw crusher, obtain the thick bone of building waste
Material；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, the quality of cuprous iodide
It is the 3.5% of initial regeneration aggregate weight, the quality of glass powder is the 40% of initial aggregate weight, and starter, high speed rotation is ground
Mill, revolving speed 1600rpm improve the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate obtain
Intensifying regenerating aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, underproof
Aggregate be ground to diameter no more than 5mm using Vertical Eccentric device again；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, fluorinated polyether silicon
The volume of oxygen alkane liquid is the 1.0% of intensifying regenerating aggregate weight, stands 25min after being sufficiently mixed, to the mechanical strength of aggregate and
Water repelling property is strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, wherein giving up
The quality for abandoning plastics is the 10% of initial regeneration aggregate weight, and the quality of Lauxite is the 7% of intensifying regenerating aggregate weight, heating
It to 90 DEG C ~ 100 DEG C, stirs and evenly mixs, after natural cooling, the higher road surface of and intensity good with hot-melt asphalt cementability can be obtained
The dedicated aggregate of pitch.
Embodiment 5:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class are added to by the mass ratio of 2:1 through carrying out just being crushed in jaw crusher, obtain the thick bone of building waste
Material；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, the quality of cuprous iodide
It is the 4.0% of initial regeneration aggregate weight, the quality of glass powder is the 50% of initial aggregate weight, and starter, high speed rotation is ground
Mill, revolving speed 1400rpm improve the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate obtain
Intensifying regenerating aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, underproof
Aggregate be ground to diameter no more than 5mm using Vertical Eccentric device again；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, fluorinated polyether silicon
The volume of oxygen alkane liquid is the 2.5% of intensifying regenerating aggregate weight, stands 30min after being sufficiently mixed, to the mechanical strength of aggregate and
Water repelling property is strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, wherein giving up
The quality for abandoning plastics is the 20% of initial regeneration aggregate weight, and the quality of Lauxite is the 6% of intensifying regenerating aggregate weight, heating
It to 90 DEG C ~ 100 DEG C, stirs and evenly mixs, after natural cooling, the higher road surface of and intensity good with hot-melt asphalt cementability can be obtained
The dedicated aggregate of pitch.
Claims (9)
1. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste, which is characterized in that itself the following steps are included:
(1) building waste is classified, discarded common brick class, discarded concrete class, waste plastic is picked out, and by discarded common brick
Class, discarded concrete class be just crushed through jaw crusher, obtain building waste coarse aggregate；
(2) rubbish coarse aggregate is further crushed through hammer mill, obtains the initial regeneration bone that partial size is not more than 15mm
Material；
(3) initial regeneration aggregate is placed in Vertical Eccentric device, and cuprous iodide and glass powder is added, starter, high speed
Spin finishing improves the particle shape of aggregate, and the surface property and density for reducing aggregate roughness, improving aggregate, strengthened regeneration
Aggregate, intensifying regenerating aggregate is screened, and the intensifying regenerating aggregate no more than 5mm is qualified aggregate, and underproof aggregate is again
Be ground to diameter no more than 5mm using Vertical Eccentric device；
(4) the qualified intensifying regenerating aggregate obtained in step (3) is mixed with fluorinated polyether silicone liquid, after being sufficiently mixed
20 ~ 30min is stood, the mechanical strength and water repelling property of aggregate are strengthened；
(5) recycled aggregate obtained in step (4) is added in waste plastic of the partial size no more than 10mm and Lauxite, heating is simultaneously
It stirs and evenly mixs, after natural cooling, the dedicated aggregate of the higher pavement asphalt of and intensity good with hot-melt asphalt cementability can be obtained.
2. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
Discard common brick class, the addition mass ratio of discarded concrete class is 2: 1.
3. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
The addition quality of cuprous iodide is the 2.5% ~ 5.5% of initial regeneration aggregate weight.
4. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
The addition quality of glass powder is the 30% ~ 50% of initial aggregate weight.
5. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
The addition volume of fluorinated polyether silicone liquid is the 0.5% ~ 2.5% of intensifying regenerating aggregate weight.
6. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
The revolving speed of step (3) the Vertical Eccentric device spin finishing is 1400rpm ~ 1600rpm.
7. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
Heating temperature is 90 DEG C ~ 100 DEG C in step (5).
8. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
The quality that Lauxite is added is the 5% ~ 10% of intensifying regenerating aggregate weight.
9. a kind of method for preparing the dedicated aggregate of pavement asphalt using building waste according to claim 1, it is characterised in that:
The quality that waste plastic is added is the 10% ~ 25% of initial regeneration aggregate weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384015.7A CN109231881A (en) | 2018-11-20 | 2018-11-20 | A method of the dedicated aggregate of pavement asphalt is prepared using building waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384015.7A CN109231881A (en) | 2018-11-20 | 2018-11-20 | A method of the dedicated aggregate of pavement asphalt is prepared using building waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109231881A true CN109231881A (en) | 2019-01-18 |
Family
ID=65075211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811384015.7A Withdrawn CN109231881A (en) | 2018-11-20 | 2018-11-20 | A method of the dedicated aggregate of pavement asphalt is prepared using building waste |
Country Status (1)
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| CN (1) | CN109231881A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116074A (en) * | 2019-12-31 | 2020-05-08 | 扬州大学 | Recycled aggregate strengthening device and method based on reagent immersion |
| CN113213815A (en) * | 2021-05-22 | 2021-08-06 | 山东高速工程建设集团有限公司 | Construction waste recycled aggregate asphalt mixture and production method thereof |
-
2018
- 2018-11-20 CN CN201811384015.7A patent/CN109231881A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116074A (en) * | 2019-12-31 | 2020-05-08 | 扬州大学 | Recycled aggregate strengthening device and method based on reagent immersion |
| CN113213815A (en) * | 2021-05-22 | 2021-08-06 | 山东高速工程建设集团有限公司 | Construction waste recycled aggregate asphalt mixture and production method thereof |
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Application publication date: 20190118 |
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