CN107879674B - Method for recycling recycled waterproof coiled material and modified asphalt mixture - Google Patents
Method for recycling recycled waterproof coiled material and modified asphalt mixture Download PDFInfo
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- CN107879674B CN107879674B CN201711175035.9A CN201711175035A CN107879674B CN 107879674 B CN107879674 B CN 107879674B CN 201711175035 A CN201711175035 A CN 201711175035A CN 107879674 B CN107879674 B CN 107879674B
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- coiled material
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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
- C04B2111/00017—Aspects relating to the protection of the environment
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Machines (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a method for recycling a recycled waterproof coiled material and a modified asphalt mixture thereof, wherein the recycled waterproof coiled material and aggregate are mixed according to the following ratio of (1-2): 100, and uniformly stirring at 160 ℃ to obtain a mixture; adding matrix asphalt into the obtained mixture, and continuously stirring uniformly to obtain a modified asphalt mixture, wherein the oilstone ratio of the modified asphalt mixture is 4.2-4.5%; the invention utilizes the waste and old recycled waterproof coiled materials to prepare the recycled waterproof coiled material modified asphalt mixture, can use a large amount of waste and old waterproof coiled materials, not only can treat and reduce the pollution to the environment, but also can reduce the use amount of asphalt to a certain extent, can greatly improve the high-temperature anti-rutting and low-temperature anti-cracking capability of the asphalt mixture, and changes waste into valuable.
Description
Technical Field
The invention belongs to the technical field of road engineering asphalt pavement materials, and particularly relates to a method for recycling a waterproof coiled material and a modified asphalt mixture.
Background
With the acceleration of urbanization steps in China, highway construction develops rapidly, but a large number of pavement disease problems such as asphalt pavement high-temperature rutting, low-temperature cracking, water loosening and the like are generated along with the rapid development of the highway construction. Meanwhile, the problems that a large number of old houses are dismantled and removed, roof asphalt waterproof coiled materials of a large number of houses are aged and need to be replaced cause the generation of construction wastes of the roof asphalt waterproof coiled materials, the roof asphalt waterproof coiled materials are difficult to treat, the environment is polluted, and the problem that how to treat a large number of waste roof asphalt waterproof materials is to be solved urgently is solved.
Disclosure of Invention
The invention aims to provide a method for recycling a recycled waterproof coiled material and a modified asphalt mixture, and solves the problem of recycling the existing waste recycled waterproof coiled material.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a method for recycling a recycled waterproof coiled material, which comprises the following steps of (1-2): 100, and uniformly stirring at 160 ℃ to obtain a mixture; and adding matrix asphalt into the obtained mixture, and continuously stirring uniformly to obtain a modified asphalt mixture, wherein the oilstone ratio of the modified asphalt mixture is 4.2-4.5%.
Preferably, the mass ratio of the reclaimed waterproof roll material to the aggregate is 1: 100, respectively; the oilstone ratio of the modified asphalt mixture is 4.4%.
Preferably, the aggregate is an AC-13 type continuous graded aggregate.
Preferably, the recycled waterproof roll is of a square block structure of 5-10 mm.
Preferably, the recycled waterproof coiled material is obtained by pretreating a waste fire-baking type asphalt-proof water coiled material taken from a roof, and the pretreatment process comprises the following steps: placing the waste fire-baking type asphalt-resistant water coiled material taken from the roof in a constant-temperature water bath box to be soaked for 2 hours, wherein the water temperature is 60 ℃; then brushing off dirt and dust on the surface by using a soft brush; finally, the mixture is placed in a hot air circulation oven to be dried for 2 hours, and the baking temperature is 60 ℃.
The modified asphalt mixture comprises the following raw materials in parts by mass: (1-2) parts of recycled waterproof coiled material, 100 parts of aggregate and matrix asphalt, wherein the oilstone ratio of the modified asphalt mixture is 4.2% -4.5%.
Preferably, the feed comprises the following raw materials in parts by mass: 1 part of recycled waterproof coiled material, 100 parts of aggregate and matrix asphalt, wherein the oilstone ratio of the modified asphalt mixture is 4.4%.
Preferably, the recycled waterproof coiled material is obtained by pretreating a waste fire-baking type asphalt-proof water coiled material taken from a roof, and the pretreatment process comprises the following steps: placing the waste fire-baking type asphalt-resistant water coiled material taken from the roof in a constant-temperature water bath box to be soaked for 2 hours, wherein the water temperature is 60 ℃; then brushing off dirt and dust on the surface by using a soft brush; finally, the mixture is placed in a hot air circulation oven to be dried for 2 hours, and the baking temperature is 60 ℃.
Compared with the prior art, the invention has the beneficial effects that:
according to the method for recycling the recycled waterproof coiled materials, the recycled waterproof coiled material modified asphalt mixture is prepared by using the waste recycled waterproof coiled materials, a large amount of waste waterproof coiled materials can be used, the pollution to the environment can be reduced, the use amount of asphalt can be reduced to a certain degree, the high-temperature anti-rutting and low-temperature anti-cracking capabilities of the asphalt mixture can be greatly improved, and waste materials are changed into valuable materials.
The invention provides a modified asphalt mixture which comprises the following raw materials in parts by mass: (1-2) parts of recycled waterproof coiled materials, 100 parts of aggregates and matrix asphalt, wherein the oilstone ratio of the modified asphalt mixture is 4.2% -4.5%; the modified asphalt mixture contains a large amount of waste waterproof coiled materials, so that the pollution of the modified asphalt mixture to the environment can be reduced, the use amount of asphalt can be reduced to a certain degree, the high-temperature anti-rutting and low-temperature anti-cracking capabilities of the asphalt mixture can be greatly improved, and waste materials are changed into valuable materials.
Detailed Description
The present invention will be described in further detail below with reference to examples.
The invention provides a method for recycling a recycled waterproof coiled material, which comprises the following steps of firstly pretreating a waste fire-baking type asphalt-proof water coiled material taken down from a roof to obtain the recycled waterproof coiled material, wherein the pretreatment method comprises the following steps: placing the waste fire-baking type asphalt-resistant water coiled material taken from the roof in a constant-temperature water bath box to be soaked for 2 hours, wherein the water temperature is 60 ℃; then brushing off dirt and dust on the surface by using a soft brush; finally, placing the mixture in a hot air circulation oven to be dried for 2 hours, wherein the baking temperature is 60 ℃; cutting the obtained recycled waterproof roll into a square block structure of 5-10 mm;
and then, mixing the recycled waterproof coiled material with the aggregate which is continuously graded with the AC-13 type according to the ratio of (1-2): 100, and uniformly stirring at 160 ℃ to obtain a mixture; and adding matrix asphalt into the obtained mixture, and continuously stirring uniformly to obtain a modified asphalt mixture, wherein the oilstone ratio of the modified asphalt mixture is 4.2-4.5%.
Example 1
The method for recycling the waterproof roll provided by the embodiment comprises the following steps:
the method comprises the following steps: the waste fire-baking type asphalt-resistant water coiled material taken down from the roof is placed in a constant-temperature water bath box at 60 ℃ to be soaked for 2 hours, then surface dirt and dust are brushed away by using a soft brush, finally the waste fire-baking type asphalt-resistant water coiled material is placed in a hot air circulation oven at 60 ℃ to be dried for 2 hours, the waste fire-baking type asphalt-resistant water coiled material is taken out from the oven and placed at normal temperature for 24 hours, and then the treated recovered waterproof coiled material is cut into square small pieces with the length and the width of 5-10 mm.
Step two: continuously stirring the aggregate of the AC-13 type continuous gradation in an asphalt mixture stirring pot at the temperature of 160 ℃ for 90s, adding the recycled waterproof coiled material formed by shearing into the stirred aggregate, stirring for 90s, and finally adding the matrix asphalt into the stirring pot, and stirring for 90s to obtain a recycled waterproof coiled material modified asphalt mixture; the mass of the recycled waterproof coiled material is 1% of the mass of the aggregate, and the oilstone ratio of the asphalt mixture is 4.4%.
Example 2
The method for recycling the waterproof roll provided by the embodiment comprises the following steps:
the method comprises the following steps: the waste fire-baking type asphalt-resistant water coiled material taken down from the roof is placed in a constant-temperature water bath box at 60 ℃ to be soaked for 2 hours, then surface dirt and dust are brushed away by using a soft brush, finally the waste fire-baking type asphalt-resistant water coiled material is placed in a hot air circulation oven at 60 ℃ to be dried for 2 hours, the waste fire-baking type asphalt-resistant water coiled material is taken out from the oven and placed at normal temperature for 24 hours, and then the treated recovered waterproof coiled material is cut into square small pieces with the length and the width of 5-10 mm.
Step two: continuously stirring the aggregate of the AC-13 type continuous gradation in an asphalt mixture stirring pot at the temperature of 165 ℃ for 90s, adding the recycled waterproof coiled material formed by shearing into the stirred aggregate, stirring for 90s, and finally adding the matrix asphalt into the stirring pot, stirring for 90s to obtain a recycled waterproof coiled material modified asphalt mixture; the mass of the recycled waterproof coiled material is 1.5% of the mass of the aggregate, and the oilstone ratio of the asphalt mixture is 4.3%.
Example 3
The method for recycling the waterproof roll provided by the embodiment comprises the following steps:
the method comprises the following steps: the waste fire-baking type asphalt-resistant water coiled material taken down from the roof is placed in a constant-temperature water bath box at 60 ℃ to be soaked for 2 hours, then surface dirt and dust are brushed away by using a soft brush, finally the waste fire-baking type asphalt-resistant water coiled material is placed in a hot air circulation oven at 60 ℃ to be dried for 2 hours, the waste fire-baking type asphalt-resistant water coiled material is taken out from the oven and placed at normal temperature for 24 hours, and then the treated recovered waterproof coiled material is cut into square small pieces with the length and the width of 5-10 mm.
Step two: continuously stirring the AC-13 type continuous graded aggregate for 90s in an asphalt mixture stirring pot at the temperature of 170 ℃, adding the cut and formed recycled waterproof coiled material into the stirred aggregate for stirring for 90s, and finally adding the matrix asphalt into the stirring pot for stirring for 90s to obtain a recycled waterproof coiled material modified asphalt mixture; the mass of the recycled waterproof coiled material is 2.0% of the mass of the aggregate, and the oilstone ratio of the asphalt mixture is 4.2%.
Performance testing
And respectively preparing a rutting plate sample and a low-temperature trabecula test piece of a matrix asphalt mixture (the oil-stone ratio is 4.5%) and a rutting plate sample and a low-temperature trabecula test piece of the recycled waterproof coiled material modified asphalt mixture in examples 1-3 according to the requirements of road engineering asphalt and asphalt mixture test procedures (JTG-E-20-2011), and testing the road performance of different rutting plates and low-temperature trabecula samples.
The results are shown in Table I
Watch 1
As can be seen from the table I, the oilstone ratio of the novel recycled waterproof coiled material modified asphalt mixture prepared by the invention is gradually reduced along with the increase of the doping amount of the recycled waterproof coiled material, compared with the matrix asphalt mixture, the high-temperature performance of the novel recycled waterproof coiled material modified asphalt mixture is improved by about 2 times, the low-temperature crack resistance is improved by about 1.4 times, and the water stability is also improved to a certain extent.
Claims (7)
1. A method for recycling a waterproof coiled material is characterized by comprising the following steps: and (3) mixing the recovered waterproof coiled material with aggregate according to the ratio of (1-2): 100, and uniformly stirring at 160 ℃ to obtain a mixture; adding matrix asphalt into the obtained mixture, and continuously stirring uniformly to obtain a modified asphalt mixture, wherein the oilstone ratio of the modified asphalt mixture is 4.2-4.5%;
the recycled waterproof roll is of a square block structure of 5-10 mm.
2. The method for recycling the waterproof roll material according to claim 1, wherein the method comprises the following steps: the mass ratio of the recovered waterproof coiled material to the aggregate is 1: 100, respectively; the oilstone ratio of the modified asphalt mixture is 4.4%.
3. The method for recycling the waterproof roll material according to claim 1, wherein the method comprises the following steps: the aggregate is AC-13 type continuous graded aggregate.
4. The method for recycling the recycled waterproof roll as claimed in claim 1, wherein the recycled waterproof roll is obtained by pretreating a waste fire-baking type asphalt-proof waterproof roll taken from a roof, and the pretreatment comprises the following steps: placing the waste fire-baking type asphalt-resistant water coiled material taken from the roof in a constant-temperature water bath box to be soaked for 2 hours, wherein the water temperature is 60 ℃; then brushing off dirt and dust on the surface by using a soft brush; finally, the mixture is placed in a hot air circulation oven to be dried for 2 hours, and the baking temperature is 60 ℃.
5. The modified asphalt mixture is characterized by comprising the following raw materials in parts by mass: (1-2) parts of recycled waterproof coiled material, 100 parts of aggregate and matrix asphalt, wherein the oilstone ratio of the modified asphalt mixture is 4.2% -4.5%.
6. The modified asphalt mixture according to claim 5, wherein: the composite material comprises the following raw materials in parts by mass: 1 part of recycled waterproof coiled material, 100 parts of aggregate and matrix asphalt, wherein the oilstone ratio of the modified asphalt mixture is 4.4%.
7. The modified asphalt mixture according to claim 5, wherein: the recycled waterproof coiled material is obtained by pretreating waste fire-baking type asphalt-proof water coiled materials taken from a roof, and the pretreatment process comprises the following steps: placing the waste fire-baking type asphalt-resistant water coiled material taken from the roof in a constant-temperature water bath box to be soaked for 2 hours, wherein the water temperature is 60 ℃; then brushing off dirt and dust on the surface by using a soft brush; finally, the mixture is placed in a hot air circulation oven to be dried for 2 hours, and the baking temperature is 60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175035.9A CN107879674B (en) | 2017-11-22 | 2017-11-22 | Method for recycling recycled waterproof coiled material and modified asphalt mixture |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711175035.9A CN107879674B (en) | 2017-11-22 | 2017-11-22 | Method for recycling recycled waterproof coiled material and modified asphalt mixture |
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| CN107879674A CN107879674A (en) | 2018-04-06 |
| CN107879674B true CN107879674B (en) | 2020-08-11 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081034A (en) * | 1994-06-17 | 1996-01-09 | Ube Ind Ltd | Method for crushing sticky material and device therefor |
| CN106893332A (en) * | 2017-02-27 | 2017-06-27 | 合肥中科富华新材料有限公司 | A kind of waterproof roll base material and preparation method |
| CN107325579A (en) * | 2017-07-17 | 2017-11-07 | 合肥威斯伏新材料有限公司 | A kind of waterproof roll base material and preparation method |
-
2017
- 2017-11-22 CN CN201711175035.9A patent/CN107879674B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081034A (en) * | 1994-06-17 | 1996-01-09 | Ube Ind Ltd | Method for crushing sticky material and device therefor |
| CN106893332A (en) * | 2017-02-27 | 2017-06-27 | 合肥中科富华新材料有限公司 | A kind of waterproof roll base material and preparation method |
| CN107325579A (en) * | 2017-07-17 | 2017-11-07 | 合肥威斯伏新材料有限公司 | A kind of waterproof roll base material and preparation method |
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| CN107879674A (en) | 2018-04-06 |
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