CN111117267A - Compound modified asphalt, preparation method and application - Google Patents
Compound modified asphalt, preparation method and application Download PDFInfo
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- CN111117267A CN111117267A CN201911340581.2A CN201911340581A CN111117267A CN 111117267 A CN111117267 A CN 111117267A CN 201911340581 A CN201911340581 A CN 201911340581A CN 111117267 A CN111117267 A CN 111117267A
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- modified asphalt
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/30—Environmental or health characteristics, e.g. energy consumption, recycling or safety issues
- C08L2555/34—Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/50—Inorganic non-macromolecular ingredients
- C08L2555/54—Sulfur or carbon black
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/80—Macromolecular constituents
- C08L2555/84—Polymers comprising styrene, e.g., polystyrene, styrene-diene copolymers or styrene-butadiene-styrene copolymers
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- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses a preparation method of compound modified asphalt, the compound modified asphalt and application, wherein the preparation method comprises the following steps: s1, adding the matrix asphalt into a stirring tank and heating; s2, adding SBS, SBR, naphthenic oil and treated waste tire rubber powder in sequence, and continuously heating and stirring to obtain a material; and S3, opening a shearing machine to shear the materials, and adding sulfur to continue stirring to obtain a finished product. The compound modified asphalt has good durability, ageing resistance and low-temperature cracking resistance, and can greatly prolong the service life of a pavement.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to compound modified asphalt, a preparation method and application.
Background
Traffic is an important factor for restricting the development of national economy. With the rapid development of national economy of China, highway traffic is also rapidly developed. In the past, the main material for paving roads in China is common road asphalt which has the defects of low-temperature brittle fracture, high-temperature flowing, poor adaptability to deformation values, poor fatigue resistance and the like. Because the road is subjected to the action of water and moisture in the air for a long time, the asphalt can be decomposed and lose the binding power to sand and aggregate, so that the service life of the road surface is short.
At present, modified asphalt is mostly adopted as a paving material for foreign roads. The modified asphalt has good durability, abrasion resistance, high-temperature non-softening and low-temperature anti-cracking performance, and can prolong the service life of the pavement by times. Modified asphalt is also adopted as a paving material for some domestic high-grade highways, but the modified asphalt imported from foreign countries is mainly adopted.
China is a country with large asphalt demand, millions of tons of various kinds of asphalt are needed every year, and about 300 million tons of the modified asphalt are needed. If the asphalt resources in China can be fully utilized and modified into high-grade pavement paving materials with the performance equivalent to that of the modified asphalt in China, the asphalt materials not only can create huge economic benefits for our country, but also can save a large amount of foreign exchanges and promote the development of road traffic and economy in China.
Disclosure of Invention
The invention aims to provide high-performance modified asphalt, a preparation method and application thereof, which have good durability and ageing resistance and low-temperature cracking resistance and can greatly prolong the service life of a pavement.
The technical scheme provided by the invention is as follows:
a preparation method of compound modified asphalt comprises the following steps:
s1, adding the matrix asphalt into a stirring tank and heating;
s2, adding SBS, SBR, naphthenic oil and treated waste tire rubber powder in sequence, and continuously heating and stirring to obtain a material;
and S3, opening a shearing machine to shear the materials, and adding sulfur to continue stirring to obtain a finished product.
Further preferred, by weight: 100 parts by weight of base asphalt in step S1;
in the step S2, 1-3 parts by weight of SBS, 2-5 parts by weight of SBR, 0.3-5 parts by weight of naphthenic oil and 10-25 parts by weight of treated waste tire rubber powder are added;
in step S3, the sulfur is 0.1-0.15 weight part.
Further preferably, the step S2 specifically includes the following steps:
s21, adding SBS, SBR and naphthenic oil successively, and stirring;
and S22, adding the treated waste tire rubber powder, and continuously heating and stirring to obtain the material.
Further preferably, the stirring time period in the step S21 is the same as the stirring time period in the step S22.
Further preferably, the stirring time in step S21 is 30 minutes, and the stirring time in step S22 is 30 minutes.
Further preferably, the heating in the step S2 is performed to the heating temperature in the step S1.
Further preferably, the heating is performed to 180 ℃ in the step S1, and the heating is performed to 180 ℃ in the step S2.
Further preferably, the shearing time in step S3 is 1 hour.
The invention also provides compound modified asphalt which comprises the following components in parts by weight: 100 parts of matrix asphalt, 10-25 parts of treated waste tire rubber powder, 2-5 parts of styrene butadiene rubber SBR, 1-3 parts of SBS, 0.3-5 parts of naphthenic oil and 0.1-0.15 part of sulfur.
The invention also provides the compound modified asphalt prepared by the method, which is applied to the preparation of compound modified green pavements.
The invention can bring the following beneficial effects:
the high-performance modified asphalt provided by the invention has good durability and ageing resistance, is resistant to cracking at low temperature, and can greatly prolong the service life of a pavement.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
The embodiment is a preparation method of compound modified asphalt, which comprises the following steps:
s1, adding the matrix asphalt into a stirring tank and heating;
s2, adding SBS, SBR, naphthenic oil and treated waste tire rubber powder in sequence, and continuously heating and stirring to obtain a material;
and S3, opening a shearing machine to shear the materials, and adding sulfur to continue stirring to obtain a finished product.
As another preferred embodiment, step S2 includes: s21, adding SBS, SBR and naphthenic oil successively, and stirring;
and S22, adding the treated waste tire rubber powder, and continuously heating and stirring.
As another preferable example, the stirring time period in the step S21 is the same as the stirring time period in the step S22; preferably, the stirring time in step S21 is 30 minutes, and the stirring time in step S22 is 30 minutes.
The heating temperature in step S2 is increased to the heating temperature in step S1, preferably, the heating temperature in step S1 is increased to 180 ℃, and the heating temperature in step S2 is increased to 180 ℃.
The shearing time in the step S3 is 1 hour.
As a preferred further example, the content of each component is, by weight: 100 parts of matrix asphalt, 10-25 parts of treated waste tire rubber powder, 2-5 parts of styrene butadiene rubber SBR, 1-3 parts of SBS, 0.3-5 parts of naphthenic oil and 0.1-0.15 part of sulfur.
Example 2
Asphalt can be prepared by the method of example 1, and the obtained asphalt can be applied to paving.
Application example 1
The preparation method of the compound modified asphalt comprises the following preparation steps in parts by weight:
s1, adding 100 parts by weight of matrix asphalt into a stirring tank, and heating to 180 ℃;
s21, adding 3 parts by weight of SBS, 2 parts by weight of SBR and 5 parts by weight of naphthenic oil in sequence, and stirring for 30 minutes;
s22, adding 25 parts by weight of the treated waste tire rubber powder, continuously heating to 180 ℃, and stirring for 30 minutes to obtain a material;
s3, opening a shearing machine to shear the materials for 1 hour, adding 0.15 weight part of sulfur and continuously stirring to obtain a finished product.
Application example 2
The preparation method of the compound modified asphalt comprises the following preparation steps in parts by weight:
s1, adding 100 parts by weight of matrix asphalt into a stirring tank, and heating to 180 ℃;
s21, adding 2 parts by weight of SBS, 5 parts by weight of SBR and 3 parts by weight of naphthenic oil in sequence, and stirring for 30 minutes;
s22, adding 10 parts by weight of the treated waste tire rubber powder, continuously heating to 180 ℃, and stirring for 30 minutes to obtain a material;
s3, opening a shearing machine to shear the materials for 1 hour, adding 0.12 weight part of sulfur and continuously stirring to obtain a finished product.
Application example 3
The preparation method of the compound modified asphalt comprises the following preparation steps in parts by weight:
s1, adding 100 parts by weight of matrix asphalt into a stirring tank, and heating to 180 ℃;
s21, adding 1 weight part of SBS, 3 weight parts of SBR and 0.3 weight part of naphthenic oil in sequence, and stirring for 30 minutes;
s22, adding 18 parts by weight of the treated waste tire rubber powder, continuously heating to 180 ℃, and stirring for 30 minutes to obtain a material;
s3, opening a shearing machine to shear the materials for 1 hour, adding 0.1 weight part of sulfur and continuously stirring to obtain a finished product.
Application example 4
The preparation method of the compound modified asphalt comprises the following preparation steps in parts by weight:
s1, adding 100 parts by weight of matrix asphalt into a stirring tank, and heating to 180 ℃;
s21, adding 3 parts by weight of SBS, 3.5 parts by weight of SBR and 2 parts by weight of naphthenic oil in sequence, and stirring for 30 minutes;
s22, adding 20 parts by weight of the treated waste tire rubber powder, continuously heating to 180 ℃, and stirring for 30 minutes to obtain a material;
s3, opening a shearing machine to shear the materials for 1 hour, adding 0.13 weight part of sulfur and continuously stirring to obtain a finished product.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The preparation method of the compound modified asphalt is characterized by comprising the following steps:
s1, adding the matrix asphalt into a stirring tank and heating;
s2, adding SBS, SBR, naphthenic oil and treated waste tire rubber powder in sequence, and continuously heating and stirring to obtain a material;
and S3, opening a shearing machine to shear the materials, and adding sulfur to continue stirring to obtain a finished product.
2. The preparation method of the compound modified asphalt as claimed in claim 1, wherein the weight ratio of the components is as follows:
100 parts by weight of base asphalt in step S1;
in the step S2, 1-3 parts by weight of SBS, 2-5 parts by weight of SBR, 0.3-5 parts by weight of naphthenic oil and 10-25 parts by weight of treated waste tire rubber powder are added;
in step S3, the sulfur is 0.1-0.15 weight part.
3. The preparation method of the compound modified asphalt according to claim 1 or 2, wherein the step S2 specifically comprises the following steps:
s21, adding SBS, SBR and naphthenic oil successively, and stirring;
and S22, adding the treated waste tire rubber powder, and continuously heating and stirring to obtain the material.
4. The preparation method of the compound modified asphalt as claimed in claim 3, which is characterized in that:
the stirring time period in the step S21 is the same as the stirring time period in the step S22.
5. The preparation method of the compound modified asphalt as claimed in claim 4, which is characterized in that:
the stirring time in the step S21 is 30 minutes, and the stirring time in the step S22 is 30 minutes.
6. The preparation method of the compound modified asphalt as claimed in claim 1, which is characterized in that:
heating in the step S2 to the heating temperature in the step S1.
7. The preparation method of the compound modified asphalt as claimed in claim 1 or 6, which is characterized in that:
heating to 180 ℃ in the step S1, and heating to 180 ℃ in the step S2.
8. The preparation method of the compound modified asphalt as claimed in claim 1, which is characterized in that:
the shearing time in the step S3 is 1 hour.
9. The compound modified asphalt is characterized by comprising the following components in parts by weight:
100 parts of matrix asphalt, 10-25 parts of treated waste tire rubber powder, 2-5 parts of SBR, 1-3 parts of SBS, 0.3-5 parts of naphthenic oil and 0.1-0.15 part of sulfur.
10. The compound modified asphalt prepared by the method according to any one of claims 1 to 8, which is characterized in that: the method is applied to the preparation of the compound modified green pavement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340581.2A CN111117267A (en) | 2019-12-23 | 2019-12-23 | Compound modified asphalt, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340581.2A CN111117267A (en) | 2019-12-23 | 2019-12-23 | Compound modified asphalt, preparation method and application |
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| Publication Number | Publication Date |
|---|---|
| CN111117267A true CN111117267A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911340581.2A Pending CN111117267A (en) | 2019-12-23 | 2019-12-23 | Compound modified asphalt, preparation method and application |
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| CN (1) | CN111117267A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313566C (en) * | 2003-10-24 | 2007-05-02 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt and its prepn process |
| CN104194719A (en) * | 2014-09-11 | 2014-12-10 | 惠州东方雨虹建筑材料有限责任公司 | Creeping self-adhesive asphalt water-proof coiled material and preparation method thereof |
| CN105778530A (en) * | 2016-03-14 | 2016-07-20 | 中交益通（北京）科技有限公司 | SBS-rubber composite modified asphalt and preparation method thereof |
| CN106751949A (en) * | 2016-11-22 | 2017-05-31 | 苏州宇希新材料科技有限公司 | A kind of preparation method of SBS modified asphalt waterproofs material |
| CN107353829A (en) * | 2017-07-03 | 2017-11-17 | 唐山东方雨虹防水技术有限责任公司 | A kind of rubber asphalt waterproof coating and preparation method thereof |
| CN107474567A (en) * | 2017-09-29 | 2017-12-15 | 江苏中亿通道路新材料有限公司 | A kind of high adhered modification pitch and preparation method thereof |
| CN109206927A (en) * | 2017-06-30 | 2019-01-15 | 霍尼韦尔国际公司 | A kind of asphalt modification composite material and preparation method and application |
-
2019
- 2019-12-23 CN CN201911340581.2A patent/CN111117267A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313566C (en) * | 2003-10-24 | 2007-05-02 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt and its prepn process |
| CN104194719A (en) * | 2014-09-11 | 2014-12-10 | 惠州东方雨虹建筑材料有限责任公司 | Creeping self-adhesive asphalt water-proof coiled material and preparation method thereof |
| CN105778530A (en) * | 2016-03-14 | 2016-07-20 | 中交益通（北京）科技有限公司 | SBS-rubber composite modified asphalt and preparation method thereof |
| CN106751949A (en) * | 2016-11-22 | 2017-05-31 | 苏州宇希新材料科技有限公司 | A kind of preparation method of SBS modified asphalt waterproofs material |
| CN109206927A (en) * | 2017-06-30 | 2019-01-15 | 霍尼韦尔国际公司 | A kind of asphalt modification composite material and preparation method and application |
| CN107353829A (en) * | 2017-07-03 | 2017-11-17 | 唐山东方雨虹防水技术有限责任公司 | A kind of rubber asphalt waterproof coating and preparation method thereof |
| CN107474567A (en) * | 2017-09-29 | 2017-12-15 | 江苏中亿通道路新材料有限公司 | A kind of high adhered modification pitch and preparation method thereof |
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| PB01 | Publication | ||
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Application publication date: 20200508 |