CN112679968A - Novel road asphalt material with excellent low-temperature performance and preparation method thereof - Google Patents
Novel road asphalt material with excellent low-temperature performance and preparation method thereof Download PDFInfo
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- CN112679968A CN112679968A CN202011533054.6A CN202011533054A CN112679968A CN 112679968 A CN112679968 A CN 112679968A CN 202011533054 A CN202011533054 A CN 202011533054A CN 112679968 A CN112679968 A CN 112679968A
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Abstract
The invention belongs to the field of pavement asphalt, and particularly discloses a novel road asphalt material with excellent low-temperature performance and a preparation method thereof.
Description
Technical Field
The invention belongs to the field of pavement asphalt, and particularly discloses a novel pavement asphalt material with excellent low-temperature performance and a preparation method thereof.
Background
The asphalt is a black brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, is one of high-viscosity organic liquids, mostly exists in a liquid or semisolid petroleum form, has a black surface, and can be dissolved in carbon disulfide and carbon tetrachloride. Asphalt is a waterproof, moistureproof and anticorrosive organic cementing material. The asphalt can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt: among them, coal tar pitch is a by-product of coking. Petroleum pitch is the residue of crude oil distillation. Natural bitumen is stored underground, and some forms a mineral layer or is accumulated on the surface of the crust. The asphalt is mainly used in the industries of paint, plastics, rubber and the like and pavement and the like.
Road asphalt is asphalt used for paving roads. It is obtained by normal vacuum distillation of crude oil with proper properties, or by shallow oxidation or propane deasphalting of vacuum residuum, or by blending and compounding asphalts with different ductility and penetration grades. Road asphalt can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt. The change of temperature has a great influence on the performance of the asphalt, the asphalt is easy to soften or even melt when the temperature is high, and the asphalt is easy to become brittle or even crack when the temperature is low. The temperature-sensitive property often causes rutting of the asphalt pavement in summer and thermal shrinkage cracking in winter, so that property loss is caused, even traffic accidents are caused, and the life safety of people is threatened.
Disclosure of Invention
Aiming at the defects, the invention discloses a novel road asphalt material with excellent low-temperature performance and a preparation method thereof.
The technical scheme of the invention is as follows:
a novel road asphalt material with excellent low-temperature performance comprises the following components in parts by weight:
furthermore, the novel road asphalt material with excellent low-temperature performance is prepared by using SBS modified asphalt.
Further, the novel road asphalt material with excellent low-temperature performance comprises the following components in parts by weight:
furthermore, the novel road asphalt material with excellent low-temperature performance comprises the following components in parts by weight:
further, the novel road asphalt material with excellent low-temperature performance comprises the following components in parts by weight:
100 portions of aluminum hydroxide
40 portions of magnesium hydroxide
And 20 parts of antimony trioxide.
Further, the novel road asphalt material with excellent low-temperature performance comprises the following components in parts by weight:
furthermore, the novel road asphalt material with excellent low-temperature performance comprises the following components in parts by weight:
further, the preparation method of the novel road asphalt material with excellent low-temperature performance comprises the following steps:
(1) mixing: the raw materials are uniformly mixed according to the formula and are heated and melted at the temperature of 210-230 DEG C
(2) And (3) development: placing the mixture heated and melted in the first step into an oven, setting the temperature of the oven at 250-300 ℃, and performing development treatment for 30-60 min;
(3) and shearing the mixture subjected to development treatment in the step two for 15-25min at the speed of 2500-3000r/min to prepare the novel asphalt material.
Further, the preparation method of the novel road asphalt material with excellent low-temperature performance comprises the following steps:
(1) mixing: mixing the raw materials uniformly according to the formula, and heating and melting at 220 DEG C
(2) And (3) development: placing the mixture heated and melted in the step one in an oven, setting the temperature of the oven at 275 ℃, and performing development treatment for 45 min;
(3) and D, shearing the mixture subjected to development treatment in the step II for 20min at the speed of 2750r/min to obtain the novel asphalt material.
According to the technical scheme, the invention has the following beneficial effects:
1. the novel asphalt material has excellent viscoelasticity, simple preparation method and convenient construction.
2. The novel asphalt material has good low-temperature resistance, stable service performance in a low-temperature environment and difficult cracking.
3. The novel asphalt material has obvious smoke suppression effect, and the smoke generation amount is small in the production and use processes, so that the construction conditions of operators are improved.
Detailed Description
The present invention is further illustrated by the following detailed description, wherein the processes are conventional unless otherwise specified, and the starting materials are commercially available from a public perspective unless otherwise specified.
Example 1
A novel road asphalt material with excellent low-temperature performance is characterized by comprising the following components in parts by weight:
the modified asphalt is SBS modified asphalt.
The low-temperature resistant additive comprises the following components in parts by weight:
the crosslinking filler comprises the following components in parts by weight:
the smoke-suppressing flame retardant consists of the following components in parts by weight:
100 portions of aluminum hydroxide
40 portions of magnesium hydroxide
Antimony trioxide 20 parts
The softener comprises the following components in parts by weight:
example 2
A novel road asphalt material with excellent low-temperature performance is characterized by comprising the following components in parts by weight:
the modified asphalt is SBS modified asphalt
The low-temperature resistant additive comprises the following components in parts by weight:
the crosslinking filler comprises the following components in parts by weight:
the smoke-suppressing flame retardant consists of the following components in parts by weight:
100 portions of aluminum hydroxide
40 portions of magnesium hydroxide
Antimony trioxide 20 parts
The softener comprises the following components in parts by weight:
example 3
A novel road asphalt material with excellent low-temperature performance is characterized by comprising the following components in parts by weight:
the modified asphalt is SBS modified asphalt
The low-temperature resistant additive comprises the following components in parts by weight:
the crosslinking filler comprises the following components in parts by weight:
the smoke-suppressing flame retardant consists of the following components in parts by weight:
100 portions of aluminum hydroxide
40 portions of magnesium hydroxide
Antimony trioxide 20 parts
The softener comprises the following components in parts by weight:
preparation example
The novel road asphalt material of the formulations of examples 1-3 was prepared as follows:
(1) mixing: mixing the raw materials uniformly according to the formula, and heating and melting at 220 DEG C
(2) And (3) development: placing the mixture heated and melted in the step one in an oven, setting the temperature of the oven at 275 ℃, and performing development treatment for 45 min;
(3) and D, shearing the mixture subjected to development treatment in the step II for 20min at the speed of 2750r/min to obtain the novel asphalt material.
Test example
The novel road asphalt material prepared in the preparation example is compared with a general road asphalt material sold in the market, and the test items are shown in the technical Specification for road asphalt pavement construction F40-2004, and the results are shown in Table 1.
TABLE 1
From the above test data, it can be seen that the novel asphalt material for roads of the present invention has excellent low temperature properties.
The above are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and all the equivalent changes and modifications made by the claims and the summary of the invention should be covered by the protection scope of the present patent application.
Claims (9)
1. A novel road asphalt material with excellent low-temperature performance is characterized by comprising the following components in parts by weight:
100 portions of modified asphalt
5-10 parts of low temperature resistant additive
5-8 parts of cross-linking filler
5-8 parts of smoke-inhibiting flame retardant
3-6 parts of softener
3-5 parts of liquid polyisoprene rubber
2-4 parts of amylopectin
1-2 parts of polyethylene glycol
1-2 parts of nano silicon dioxide.
2. The novel asphalt material for roads with excellent low-temperature performance as claimed in claim 1, wherein the modified asphalt is SBS modified asphalt.
3. The novel asphalt material for roads with excellent low-temperature performance as claimed in claim 1, wherein the low-temperature resistant additive comprises the following components in parts by weight:
100 parts of silicone oil
25 parts of polydimethylsiloxane
Vinylene carbonate 15 parts
Chemical vapor deposition carbon fiber 6 parts
3 parts of polyacrylonitrile-based carbon fiber
And 1.5 parts of sodium stearyl lactate.
4. The novel asphalt material for roads with excellent low-temperature performance as claimed in claim 1, wherein the cross-linking filler is composed of the following components in parts by weight:
100 portions of sodium hyaluronate
Polysiloxane 40 parts
Cross-linked dextran 25 parts
15 parts of polylactic acid
15 parts of graphite powder.
5. The novel asphalt material for roads with excellent low-temperature performance as claimed in claim 1, wherein the smoke-suppressing flame retardant comprises the following components in parts by weight:
100 portions of aluminum hydroxide
40 portions of magnesium hydroxide
And 20 parts of antimony trioxide.
6. The novel asphalt material for roads with excellent low-temperature performance as claimed in claim 1, wherein the softening agent comprises the following components in parts by weight:
100 portions of dioctyl adipate
Hexamethylphosphoric triamide 70 parts
50 parts of methacrylic acid
30 parts of dibutyl phthalate.
7. The novel asphalt material for roads with excellent low-temperature performance as claimed in claim 1, is characterized by comprising the following components in parts by weight:
100 portions of modified asphalt
7.5 parts of low-temperature resistant additive
6.5 parts of cross-linking filler
6.5 parts of smoke-inhibiting flame retardant
Softener 4.5 parts
Liquid polyisoprene rubber 4 parts
Amylopectin in 3 portions
1.5 parts of polyethylene glycol
And 1.5 parts of nano silicon dioxide.
8. The method for producing a novel asphalt material for roads excellent in low-temperature properties as claimed in any one of claims 1 to 7, comprising the steps of:
(1) mixing: the raw materials are uniformly mixed according to the formula and are heated and melted at the temperature of 210-230 DEG C
(2) And (3) development: placing the mixture heated and melted in the first step into an oven, setting the temperature of the oven at 250-300 ℃, and performing development treatment for 30-60 min;
(3) and shearing the mixture subjected to development treatment in the step two for 15-25min at the speed of 2500-3000r/min to prepare the novel asphalt material.
9. The method for preparing the novel asphalt material for roads with excellent low-temperature performance according to claim 8, which is characterized by comprising the following steps:
(1) mixing: mixing the raw materials uniformly according to the formula, and heating and melting at 220 DEG C
(2) And (3) development: placing the mixture heated and melted in the step one in an oven, setting the temperature of the oven at 275 ℃, and performing development treatment for 45 min;
(3) and D, shearing the mixture subjected to development treatment in the step II for 20min at the speed of 2750r/min to obtain the novel asphalt material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533054.6A CN112679968A (en) | 2020-12-22 | 2020-12-22 | Novel road asphalt material with excellent low-temperature performance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011533054.6A CN112679968A (en) | 2020-12-22 | 2020-12-22 | Novel road asphalt material with excellent low-temperature performance and preparation method thereof |
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| CN112679968A true CN112679968A (en) | 2021-04-20 |
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| CN202011533054.6A Pending CN112679968A (en) | 2020-12-22 | 2020-12-22 | Novel road asphalt material with excellent low-temperature performance and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045041A (en) * | 2021-12-31 | 2022-02-15 | 远大洪雨（唐山）防水材料有限公司 | Modified asphalt and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419356A (en) * | 2015-11-27 | 2016-03-23 | 宁波滨海石化有限公司 | Low-temperature-resistant modified asphalt and preparation method thereof |
| CN108165036A (en) * | 2018-01-16 | 2018-06-15 | 苏州拓博琳新材料科技有限公司 | A kind of modified asphalt composite of low temperature performance excellent and preparation method thereof |
| CN108948757A (en) * | 2018-05-25 | 2018-12-07 | 佛山市路邦沥青有限公司 | A kind of preparation method of low temperature resistant suppression cigarette pitch |
| CN110951268A (en) * | 2019-12-19 | 2020-04-03 | 中化泉州能源科技有限责任公司 | Modified asphalt composition with excellent high and low temperature performance and preparation method thereof |
-
2020
- 2020-12-22 CN CN202011533054.6A patent/CN112679968A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419356A (en) * | 2015-11-27 | 2016-03-23 | 宁波滨海石化有限公司 | Low-temperature-resistant modified asphalt and preparation method thereof |
| CN108165036A (en) * | 2018-01-16 | 2018-06-15 | 苏州拓博琳新材料科技有限公司 | A kind of modified asphalt composite of low temperature performance excellent and preparation method thereof |
| CN108948757A (en) * | 2018-05-25 | 2018-12-07 | 佛山市路邦沥青有限公司 | A kind of preparation method of low temperature resistant suppression cigarette pitch |
| CN110951268A (en) * | 2019-12-19 | 2020-04-03 | 中化泉州能源科技有限责任公司 | Modified asphalt composition with excellent high and low temperature performance and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045041A (en) * | 2021-12-31 | 2022-02-15 | 远大洪雨（唐山）防水材料有限公司 | Modified asphalt and preparation method thereof |
| CN114045041B (en) * | 2021-12-31 | 2022-10-28 | 远大洪雨（唐山）防水材料有限公司 | Modified asphalt and preparation method thereof |
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