CN106543753B - Rubber asphalt pavement cementing material - Google Patents
Rubber asphalt pavement cementing material Download PDFInfo
- Publication number
- CN106543753B CN106543753B CN201610958386.6A CN201610958386A CN106543753B CN 106543753 B CN106543753 B CN 106543753B CN 201610958386 A CN201610958386 A CN 201610958386A CN 106543753 B CN106543753 B CN 106543753B
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- Prior art keywords
- asphalt
- obtained according
- parts
- test method
- waste tire
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- 239000010426 asphalt Substances 0.000 title claims abstract description 86
- 239000000463 material Substances 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 50
- 239000010920 waste tyre Substances 0.000 claims abstract description 30
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 14
- 230000035515 penetration Effects 0.000 claims 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 4
- 239000004215 Carbon black (E152) Substances 0.000 claims 2
- 239000006229 carbon black Substances 0.000 claims 2
- 229930195733 hydrocarbon Natural products 0.000 claims 2
- 150000002430 hydrocarbons Chemical class 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a rubber asphalt pavement cementing material, and belongs to the technical field of resource recycling and asphalt materials. The waste tire rubber powder has larger particle size, can reduce the cost of rubber asphalt, and simultaneously has better road performance and construction performance. The rubber asphalt pavement cementing material is prepared from the following components in parts by weight: 100 parts of matrix asphalt; 19-21 parts of waste tire rubber powder.
Description
Technical Field
The invention relates to a rubber asphalt material, in particular to a rubber asphalt pavement cementing material, and belongs to the technical field of resource recycling and asphalt materials.
Background
The rubber asphalt is a pavement cementing material formed by adding rubber powder obtained by processing waste tires into matrix asphalt at a high temperature (more than 180 ℃) according to a certain proportion and continuously stirring for a certain time (more than 45 min) to fully swell the rubber powder in the asphalt. The rubber asphalt has the following advantages: 1. the rubber asphalt mixture has excellent pavement service performance, including high and low temperature resistance and reduced temperature sensitivity; 2. the method has obvious advantages in the aspects of delaying reflection cracks, reducing the thickness of the asphalt pavement, reducing the noise of the pavement and resisting heavy traffic and bad weather; 3. the service life of the asphalt pavement can be prolonged; 4. the rubber asphalt is used for road construction, is beneficial to eliminating black pollution and solves the problem of treatment of waste tires. However, the rubber asphalt technology is a new technology for the highway industry in China, is in the starting stage, and faces the problems of insufficient production and construction experience and technology, and if the rubber asphalt is not manufactured or used properly: the performance of the rubber asphalt and the mixture thereof can not meet the construction requirements, so that the performance and the service life of the pavement can not reach the expected effect; or the rubber asphalt binder has too high viscosity, which brings difficulty to the construction process of the rubber asphalt and the mixture thereof, thereby reducing the construction efficiency and the construction quality. In addition, the existing rubber asphalt is mostly made of fine rubber powder with more than 40 meshes, so that the construction cost is higher.
Disclosure of Invention
In view of the defects and various shortcomings of the prior art, the invention aims to solve the technical problem of preparing the rubber asphalt with excellent performance and convenient road construction by using the coarse rubber powder.
In order to achieve the purpose, the invention provides a rubber asphalt pavement cementing material which is characterized by being prepared from the following components in parts by weight: 100 parts of matrix asphalt and 19-21 parts of waste tire rubber powder;
the particle size grading of the waste tire rubber powder needs to meet the following requirements:
meanwhile, the physical indexes of the waste tire rubber powder need to meet the following technical requirements:
moreover, the chemical indexes of the waste tire rubber powder need to meet the following technical requirements:
the matrix asphalt is 90# heavy traffic road petroleum asphalt and meets the following technical requirements:
the rubber asphalt pavement cementing material comprises the following components in parts by weight: 100 parts of base asphalt and 20 parts of waste tire rubber powder.
The invention also provides a preparation method of the rubber asphalt pavement cementing material, which comprises the following steps:
a. quickly heating 100 parts by weight of base asphalt to 185-190 ℃ and continuously stirring to uniformly heat the base asphalt;
b. adding 19-21 parts of rubber powder into high-temperature asphalt and uniformly stirring;
c. and controlling the reaction temperature of the rubber powder and the matrix asphalt to be 180 +/-3 ℃, and keeping stirring continuously during the reaction time of 45-50 min to obtain the rubber asphalt.
The rubber asphalt pavement cementing material provided by the invention has the following beneficial effects:
the rubber powder in the rubber asphalt pavement cementing material is thicker, so that the cost of rubber asphalt can be reduced, and the rubber asphalt pavement cementing material has better high-temperature performance, lower viscosity and better construction performance.
The above description is only an overview of the technical solutions of the present invention, and the present invention is described in detail below in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description.
Detailed Description
According to the production formula of the rubber asphalt pavement cementing material provided by the invention, firstly, the waste tire rubber powder meeting the technical requirements and the matrix asphalt meeting certain technical requirements are selected.
The waste tire rubber powder is waste tire rubber powder with the particle size of 30 meshes, and is powder prepared by grinding waste truck radial tires at normal temperature. The rubber powder needs to have a particle size distribution composition meeting the following requirements:
meanwhile, the physical indexes of the waste tire rubber powder need to meet the following technical requirements:
moreover, the chemical indexes of the waste tire rubber powder need to meet the following technical requirements:
the matrix asphalt adopts 90# heavy traffic road petroleum asphalt, and the requirements meet the following technical requirements:
after the raw materials meet the requirements of the invention, the rubber asphalt can be processed and produced. In the invention, the weight ratio of the matrix asphalt to the waste tire rubber powder is as follows: 100: 19-21.
The following examples are provided to further illustrate the embodiments of the present invention and are not intended to limit the scope of the present invention.
The preferred embodiment is as follows:
example 1 preparation of a rubberized asphalt cement according to the invention
Weighing 1000.0g of No. 90 road petroleum asphalt and 200.0g of waste tire rubber powder of 30 meshes. The index values of the properties of the asphalt are shown in Table 1 below, and the index values of the particle size composition, physical and chemical properties of the rubber powder are shown in tables 2, 3 and 4 below. And (2) rapidly heating the matrix asphalt to 185-190 ℃ and continuously stirring, then adding the rubber powder into the high-temperature asphalt to be continuously stirred and mixed, setting the reaction temperature of the rubber powder and the rubber asphalt to be 180 ℃, and carrying out swelling reaction on the rubber powder in the asphalt for 45min to prepare the rubber asphalt pavement cementing material.
TABLE 1 Pitch Performance index values
TABLE 2 grading composition of the particle size of the rubber powder
TABLE 3 index values of physical Properties of rubber powders
TABLE 4 index values of chemical properties of rubber powders
EXAMPLE 2 preparation of the rubber asphalt of the present invention
2000.0g of No. 90 road petroleum asphalt and 400.0g of waste tire rubber powder of 30 meshes are weighed. The index values of the properties of the asphalt are shown in Table 5 below, and the index values of the particle size composition, physical and chemical properties of the rubber crumb are shown in tables 6, 7 and 8 below. And (2) rapidly heating the matrix asphalt to 185-190 ℃ and continuously stirring, then adding the rubber powder into the high-temperature asphalt to be continuously stirred and mixed, setting the reaction temperature of the rubber powder and the rubber asphalt to be 180 ℃, and carrying out swelling reaction on the rubber powder in the asphalt for 45min to prepare the rubber asphalt pavement cementing material.
TABLE 5 Pitch Performance index values
TABLE 6 grading composition of rubber powder particle size
TABLE 7 index values of physical Properties of rubber powders
TABLE 8 index values of chemical Properties of rubber powders
The rubber asphalt pavement cements of the present invention prepared in examples 1-2 were subjected to the property measurement, and the results are shown in Table 9.
TABLE 9 analytical test results for rubber asphalt cement of the present invention
Example 3
The composition is prepared from the following components in parts by weight: 100 parts of base asphalt and 19 parts of waste tire rubber powder.
Example 4
The composition is prepared from the following components in parts by weight: 100 parts of base asphalt and 20 parts of waste tire rubber powder.
Example 5
The composition is prepared from the following components in parts by weight: 100 parts of base asphalt and 21 parts of waste tire rubber powder.
Claims (3)
1. The rubber asphalt pavement cementing material is characterized by being prepared from the following components in parts by weight: 100 parts of matrix asphalt and 19-21 parts of waste tire rubber powder;
the particle size grading of the waste tire rubber powder needs to meet the following requirements:
the mass passing percentages of the waste tire rubber powder in the screen mesh sizes of 2.36mm, 2.00mm, 1.18mm, 0.60mm, 0.30mm, 0.15mm and 0.075mm are respectively 100%, 75-90%, 25-42%, 7-12% and 0-2%;
meanwhile, the physical indexes of the waste tire rubber powder need to meet the following technical requirements:
the relative density is 1.18-1.19, the water content is less than 1%, the metal content is 0, and the fiber content is less than 0.05%;
moreover, the chemical indexes of the waste tire rubber powder meet the following technical requirements:
the content of ash is less than or equal to 8%, the content of acetone extract is 6.1-6.6%, the content of carbon black is 28%, and the content of rubber hydrocarbon is 58-61%, wherein the content of ash is obtained according to a GB 4498 test method, the content of acetone extract is obtained according to a GB/T3516 test method, the content of carbon black is obtained according to a GB/T14837 test method, and the content of rubber hydrocarbon is obtained according to a GB/T14837 test method;
the matrix asphalt is 90# heavy traffic road petroleum asphalt and meets the following technical requirements:
the penetration degree is 85-950.1 mm, the penetration degree is obtained according to a T0604 test method, the test temperature is 25 ℃, the test time is 5s, and the total test load is 100 g;
the penetration index PI is-1.0- +1.0, and is obtained according to a T0604 test method;
at a stretching speed of 5cm/min, the ductility at 10 ℃ and the ductility at 15 ℃ are both greater than 100cm, the ductility being obtained according to the T0605 test method;
the softening point is more than or equal to 45 ℃, and the softening point is obtained according to a ring and ball method in a T0606 test method;
the density at 15 ℃ is more than or equal to 1.01g/cm3Said density being obtained according to the T0603 test method;
the solubility is more than or equal to 99.5 percent, and the solubility is obtained according to a T0607 test method;
the flash point COC is more than or equal to 285 ℃, and the flash point COC is obtained according to a T0611 test method;
after a film heating test at a test temperature of 163 ℃ for a test time of 5h, the base asphalt had the following technical specifications: the mass percent is changed to +/-0.1 percent; the residual penetration ratio at 25 ℃ is more than or equal to 60 percent; when the stretching speed is 5cm/min, the residual ductility at 10 ℃ is more than or equal to 8 cm; wherein the mass change is obtained according to a T0609 test method, the residual penetration ratio is obtained according to a T0604 test method, and the residual ductility is obtained according to a T0605 test method;
the rubber asphalt pavement cementing material is prepared by the following method:
a. rapidly heating 100 parts by weight of the base asphalt to 185-190 ℃ and continuously stirring to uniformly heat the base asphalt;
b. adding 19-21 parts by weight of the waste tire rubber powder into the high-temperature matrix asphalt and uniformly stirring;
c. and controlling the reaction temperature of the waste tire rubber powder and the matrix asphalt to be 180 +/-3 ℃, and keeping stirring continuously during the reaction time of 45-50 min to obtain the rubber asphalt pavement cementing material.
2. The rubber-asphalt pavement cement according to claim 1, wherein: the composition is prepared from the following components in parts by weight: 100 parts of the matrix asphalt and 20 parts of the waste tire rubber powder.
3. A method for preparing the rubber asphalt pavement cement of claim 1, comprising the steps of:
a. rapidly heating 100 parts by weight of the base asphalt to 185-190 ℃ and continuously stirring to uniformly heat the base asphalt;
b. adding 19-21 parts by weight of the waste tire rubber powder into high-temperature matrix asphalt and uniformly stirring;
c. and controlling the reaction temperature of the waste tire rubber powder and the matrix asphalt to be 180 +/-3 ℃, and keeping stirring continuously during the reaction time of 45-50 min to obtain the rubber asphalt pavement cementing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958386.6A CN106543753B (en) | 2016-10-19 | 2016-10-19 | Rubber asphalt pavement cementing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958386.6A CN106543753B (en) | 2016-10-19 | 2016-10-19 | Rubber asphalt pavement cementing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106543753A CN106543753A (en) | 2017-03-29 |
| CN106543753B true CN106543753B (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610958386.6A Expired - Fee Related CN106543753B (en) | 2016-10-19 | 2016-10-19 | Rubber asphalt pavement cementing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106543753B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073903A (en) * | 2013-02-05 | 2013-05-01 | 西安公路研究院 | Rubber powder-modified asphalt and preparation method thereof |
| CN103725023A (en) * | 2013-12-16 | 2014-04-16 | 广州路翔交通材料有限公司 | Rubber powder modified asphalt and preparation method thereof |
| CN104650601A (en) * | 2013-11-21 | 2015-05-27 | 交通运输部科学研究院 | Production formula for raising low temperature performance of crumb rubber asphalt |
-
2016
- 2016-10-19 CN CN201610958386.6A patent/CN106543753B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073903A (en) * | 2013-02-05 | 2013-05-01 | 西安公路研究院 | Rubber powder-modified asphalt and preparation method thereof |
| CN104650601A (en) * | 2013-11-21 | 2015-05-27 | 交通运输部科学研究院 | Production formula for raising low temperature performance of crumb rubber asphalt |
| CN103725023A (en) * | 2013-12-16 | 2014-04-16 | 广州路翔交通材料有限公司 | Rubber powder modified asphalt and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106543753A (en) | 2017-03-29 |
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Granted publication date: 20220211 |